gcc generates better code for: if (variable == magic_constant) return magic_constant; than it does for: if (variable == magic_constant) return variable; even though the two have the same result. Switch to the form which generates slightly better code.
1454 lines
46 KiB
C++
1454 lines
46 KiB
C++
/*
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* Portions of this file are copyright Rebirth contributors and licensed as
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* described in COPYING.txt.
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* Portions of this file are copyright Parallax Software and licensed
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* according to the Parallax license below.
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* See COPYING.txt for license details.
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THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
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SOFTWARE CORPORATION ("PARALLAX"). PARALLAX, IN DISTRIBUTING THE CODE TO
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END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
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ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
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IN USING, DISPLAYING, AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
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SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
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FREE PURPOSES. IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
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CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES. THE END-USER UNDERSTANDS
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AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
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COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION. ALL RIGHTS RESERVED.
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*/
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/*
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*
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* Code for rendering & otherwise dealing with explosions
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*
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*/
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#include <algorithm>
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#include <numeric>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "dxxerror.h"
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#include "maths.h"
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#include "vecmat.h"
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#include "gr.h"
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#include "3d.h"
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#include "inferno.h"
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#include "object.h"
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#include "vclip.h"
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#include "game.h"
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#include "robot.h"
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#include "sounds.h"
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#include "player.h"
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#include "gauges.h"
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#include "powerup.h"
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#include "bm.h"
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#include "ai.h"
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#include "weapon.h"
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#include "fireball.h"
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#include "collide.h"
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#include "newmenu.h"
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#include "gameseq.h"
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#include "physics.h"
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#include "scores.h"
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#include "laser.h"
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#include "wall.h"
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#include "multi.h"
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#include "endlevel.h"
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#include "timer.h"
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#include "fuelcen.h"
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#include "playsave.h"
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#include "cntrlcen.h"
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#include "gameseg.h"
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#include "automap.h"
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#include "byteutil.h"
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#include "compiler-range_for.h"
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#include "partial_range.h"
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#include "segiter.h"
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using std::min;
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#define EXPLOSION_SCALE (F1_0*5/2) //explosion is the obj size times this
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//--unused-- ubyte Frame_processed[MAX_OBJECTS];
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namespace dsx {
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#if defined(DXX_BUILD_DESCENT_II)
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fix Flash_effect=0;
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constexpr int PK1=1, PK2=8;
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#endif
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static objptridx_t object_create_explosion_sub(const objptridx_t objp, const vsegptridx_t segnum, const vms_vector &position, fix size, int vclip_type, fix maxdamage, fix maxdistance, fix maxforce, const cobjptridx_t parent )
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{
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auto obj = obj_create( OBJ_FIREBALL,vclip_type,segnum,position,&vmd_identity_matrix,size,
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CT_EXPLOSION,MT_NONE,RT_FIREBALL);
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if (obj == object_none)
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{
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return object_none;
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}
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//now set explosion-specific data
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obj->lifeleft = Vclip[vclip_type ].play_time;
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obj->ctype.expl_info.spawn_time = -1;
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obj->ctype.expl_info.delete_objnum = object_none;
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obj->ctype.expl_info.delete_time = -1;
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if (maxdamage > 0) {
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fix force;
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vms_vector pos_hit, vforce;
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fix damage;
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// -- now legal for badass explosions on a wall. Assert(objp != NULL);
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range_for (const auto &&obj0p, vobjptridx)
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{
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// Weapons used to be affected by badass explosions, but this introduces serious problems.
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// When a smart bomb blows up, if one of its children goes right towards a nearby wall, it will
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// blow up, blowing up all the children. So I remove it. MK, 09/11/94
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#if defined(DXX_BUILD_DESCENT_I)
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if ( (obj0p->type == OBJ_CNTRLCEN) ||
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(obj0p->type==OBJ_PLAYER) ||
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(
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obj0p->type == OBJ_ROBOT &&
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parent != object_none &&
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(parent->type != OBJ_ROBOT || get_robot_id(parent) != obj0p->id)
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)
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)
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#elif defined(DXX_BUILD_DESCENT_II)
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if ( !(obj0p==objp) &&
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!(obj0p->flags&OF_SHOULD_BE_DEAD) &&
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((obj0p->type==OBJ_WEAPON && (is_proximity_bomb_or_smart_mine_or_placed_mine(get_weapon_id(obj0p)))) ||
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(obj0p->type == OBJ_CNTRLCEN) ||
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(obj0p->type==OBJ_PLAYER) ||
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(
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obj0p->type == OBJ_ROBOT &&
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parent != object_none &&
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(parent->type != OBJ_ROBOT || get_robot_id(parent) != obj0p->id)
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)
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))
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#endif
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{
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const auto dist = vm_vec_dist_quick( obj0p->pos, obj->pos );
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// Make damage be from 'maxdamage' to 0.0, where 0.0 is 'maxdistance' away;
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if ( dist < maxdistance ) {
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if (object_to_object_visibility(obj, obj0p, FQ_TRANSWALL)) {
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damage = maxdamage - fixmuldiv( dist, maxdamage, maxdistance );
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force = maxforce - fixmuldiv( dist, maxforce, maxdistance );
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// Find the force vector on the object
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vm_vec_normalized_dir_quick( vforce, obj0p->pos, obj->pos );
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vm_vec_scale(vforce, force );
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// Find where the point of impact is... ( pos_hit )
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vm_vec_scale(vm_vec_sub(pos_hit, obj->pos, obj0p->pos), fixdiv(obj0p->size, obj0p->size + dist));
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switch ( obj0p->type ) {
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#if defined(DXX_BUILD_DESCENT_II)
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case OBJ_WEAPON:
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phys_apply_force(obj0p,vforce);
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if (is_proximity_bomb_or_smart_mine(get_weapon_id(obj0p)))
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{ //prox bombs have chance of blowing up
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if (fixmul(dist,force) > i2f(8000)) {
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obj0p->flags |= OF_SHOULD_BE_DEAD;
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explode_badass_weapon(obj0p, obj0p->pos);
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}
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}
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break;
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#endif
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case OBJ_ROBOT:
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{
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phys_apply_force(obj0p,vforce);
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#if defined(DXX_BUILD_DESCENT_II)
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// If not a boss, stun for 2 seconds at 32 force, 1 second at 16 force
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if ((objp != object_none) && (!Robot_info[get_robot_id(obj0p)].boss_flag) && (Weapon_info[get_weapon_id(objp)].flash)) {
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ai_static *aip = &obj0p->ctype.ai_info;
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int force_val = f2i(fixdiv(vm_vec_mag_quick(vforce) * Weapon_info[get_weapon_id(objp)].flash, FrameTime)/128) + 2;
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if (obj->ctype.ai_info.SKIP_AI_COUNT * FrameTime < F1_0) {
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aip->SKIP_AI_COUNT += force_val;
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obj0p->mtype.phys_info.rotthrust.x = ((d_rand() - 16384) * force_val)/16;
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obj0p->mtype.phys_info.rotthrust.y = ((d_rand() - 16384) * force_val)/16;
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obj0p->mtype.phys_info.rotthrust.z = ((d_rand() - 16384) * force_val)/16;
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obj0p->mtype.phys_info.flags |= PF_USES_THRUST;
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//@@if (Robot_info[obj0p->id].companion)
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//@@ buddy_message("Daisy, Daisy, Give me...");
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} else
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aip->SKIP_AI_COUNT--;
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}
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#endif
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// When a robot gets whacked by a badass force, he looks towards it because robots tend to get blasted from behind.
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{
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vms_vector neg_vforce;
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neg_vforce.x = vforce.x * -2 * (7 - Difficulty_level)/8;
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neg_vforce.y = vforce.y * -2 * (7 - Difficulty_level)/8;
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neg_vforce.z = vforce.z * -2 * (7 - Difficulty_level)/8;
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phys_apply_rot(obj0p,neg_vforce);
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}
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if ( obj0p->shields >= 0 ) {
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#if defined(DXX_BUILD_DESCENT_II)
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const auto &robot_info = Robot_info[get_robot_id(obj0p)];
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if (robot_info.boss_flag >= BOSS_D2 && Boss_invulnerable_matter[robot_info.boss_flag - BOSS_D2])
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damage /= 4;
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#endif
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if (apply_damage_to_robot(obj0p, damage, parent))
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if ((objp != object_none) && (parent == get_local_player().objnum))
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add_points_to_score(ConsoleObject->ctype.player_info, Robot_info[get_robot_id(obj0p)].score_value);
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}
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#if defined(DXX_BUILD_DESCENT_II)
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if (objp != object_none && Robot_info[get_robot_id(obj0p)].companion && !Weapon_info[get_weapon_id(objp)].flash)
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{
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static const char ouch_str[] = "ouch! " "ouch! " "ouch! " "ouch! ";
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int count;
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count = f2i(damage/8);
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if (count > 4)
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count = 4;
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else if (count <= 0)
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count = 1;
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buddy_message_str(&ouch_str[(4 - count) * 6]);
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}
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#endif
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break;
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}
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case OBJ_CNTRLCEN:
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if (parent != object_none && obj0p->shields >= 0)
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{
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apply_damage_to_controlcen(obj0p, damage, parent );
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}
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break;
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case OBJ_PLAYER: {
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cobjptridx_t killer = object_none;
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#if defined(DXX_BUILD_DESCENT_II)
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// Hack! Warning! Test code!
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if (objp != object_none && Weapon_info[get_weapon_id(objp)].flash && get_player_id(obj0p) == Player_num)
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{
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int fe;
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fe = min(F1_0 * 4, force*Weapon_info[get_weapon_id(objp)].flash / 32); // For four seconds or less
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if (objp->ctype.laser_info.parent_signature == ConsoleObject->signature) {
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fe /= 2;
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force /= 2;
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}
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if (force > F1_0) {
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Flash_effect = fe;
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PALETTE_FLASH_ADD(PK1 + f2i(PK2*force), PK1 + f2i(PK2*force), PK1 + f2i(PK2*force));
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}
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}
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#endif
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if ((objp != object_none) && (Game_mode & GM_MULTI) && (objp->type == OBJ_PLAYER)) {
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killer = objp;
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}
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auto vforce2 = vforce;
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if (parent != object_none ) {
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killer = parent;
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if (killer != ConsoleObject) // if someone else whacks you, cut force by 2x
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{
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vforce2.x /= 2; vforce2.y /= 2; vforce2.z /= 2;
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}
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}
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vforce2.x /= 2; vforce2.y /= 2; vforce2.z /= 2;
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phys_apply_force(obj0p,vforce);
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phys_apply_rot(obj0p,vforce2);
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if (obj0p->shields >= 0)
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{
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#if defined(DXX_BUILD_DESCENT_II)
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if (Difficulty_level == 0)
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damage /= 4;
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#endif
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apply_damage_to_player(obj0p, killer, damage, 1 );
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}
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}
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break;
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default:
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Int3(); // Illegal object type
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} // end switch
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} else {
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;
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} // end if (object_to_object_visibility...
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} // end if (dist < maxdistance)
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}
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} // end for
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} // end if (maxdamage...
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return obj;
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}
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void object_create_muzzle_flash(const vsegptridx_t segnum, const vms_vector &position, fix size, int vclip_type )
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{
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object_create_explosion_sub(object_none, segnum, position, size, vclip_type, 0, 0, 0, object_none );
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}
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objptridx_t object_create_explosion(const vsegptridx_t segnum, const vms_vector &position, fix size, int vclip_type )
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{
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return object_create_explosion_sub(object_none, segnum, position, size, vclip_type, 0, 0, 0, object_none );
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}
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objptridx_t object_create_badass_explosion(const objptridx_t objp, const vsegptridx_t segnum, const vms_vector &position, fix size, int vclip_type, fix maxdamage, fix maxdistance, fix maxforce, const cobjptridx_t parent )
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{
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const objptridx_t rval = object_create_explosion_sub(objp, segnum, position, size, vclip_type, maxdamage, maxdistance, maxforce, parent );
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if ((objp != object_none) && (objp->type == OBJ_WEAPON))
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create_weapon_smart_children(objp);
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return rval;
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}
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//blows up a badass weapon, creating the badass explosion
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//return the explosion object
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void explode_badass_weapon(const vobjptridx_t obj,const vms_vector &pos)
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{
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const auto weapon_id = get_weapon_id(obj);
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const weapon_info *wi = &Weapon_info[weapon_id];
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Assert(wi->damage_radius);
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#if defined(DXX_BUILD_DESCENT_II)
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if (weapon_id == weapon_id_type::EARTHSHAKER_ID || weapon_id == weapon_id_type::ROBOT_EARTHSHAKER_ID)
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smega_rock_stuff();
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#endif
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digi_link_sound_to_object(SOUND_BADASS_EXPLOSION, obj, 0, F1_0);
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object_create_badass_explosion(obj, vsegptridx(obj->segnum), pos,
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wi->impact_size,
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wi->robot_hit_vclip,
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wi->strength[Difficulty_level],
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wi->damage_radius,wi->strength[Difficulty_level],
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objptridx(obj->ctype.laser_info.parent_num));
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}
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static void explode_badass_object(const vobjptridx_t objp, fix damage, fix distance, fix force)
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{
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const auto &&rval = object_create_badass_explosion(objp, vsegptridx(objp->segnum), objp->pos, objp->size,
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get_explosion_vclip(objp, explosion_vclip_stage::s0),
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damage, distance, force,
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objp);
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if (rval != object_none)
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digi_link_sound_to_object(SOUND_BADASS_EXPLOSION, rval, 0, F1_0);
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}
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//blows up the player with a badass explosion
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//return the explosion object
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void explode_badass_player(const vobjptridx_t objp)
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{
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explode_badass_object(objp, F1_0*50, F1_0*40, F1_0*150);
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}
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#define DEBRIS_LIFE (f1_0 * (PERSISTENT_DEBRIS?60:2)) //lifespan in seconds
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static void object_create_debris(const object_base &parent, int subobj_num)
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{
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Assert(parent.type == OBJ_ROBOT || parent.type == OBJ_PLAYER);
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const auto &&obj = obj_create(OBJ_DEBRIS, 0, vsegptridx(parent.segnum), parent.pos, &parent.orient, Polygon_models[parent.rtype.pobj_info.model_num].submodel_rads[subobj_num],
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CT_DEBRIS,MT_PHYSICS,RT_POLYOBJ);
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if ((obj == object_none ) && (Highest_object_index >= MAX_OBJECTS-1)) {
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// Int3(); // this happens often and is normal :-)
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return;
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}
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if ( obj == object_none )
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return; // Not enough debris slots!
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Assert(subobj_num < 32);
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//Set polygon-object-specific data
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obj->rtype.pobj_info.model_num = parent.rtype.pobj_info.model_num;
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obj->rtype.pobj_info.subobj_flags = 1<<subobj_num;
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obj->rtype.pobj_info.tmap_override = parent.rtype.pobj_info.tmap_override;
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//Set physics data for this object
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obj->mtype.phys_info.velocity.x = D_RAND_MAX/2 - d_rand();
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obj->mtype.phys_info.velocity.y = D_RAND_MAX/2 - d_rand();
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obj->mtype.phys_info.velocity.z = D_RAND_MAX/2 - d_rand();
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vm_vec_normalize_quick(obj->mtype.phys_info.velocity);
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vm_vec_scale(obj->mtype.phys_info.velocity,i2f(10 + (30 * d_rand() / D_RAND_MAX)));
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vm_vec_add2(obj->mtype.phys_info.velocity, parent.mtype.phys_info.velocity);
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// -- used to be: Notice, not random! vm_vec_make(&obj->mtype.phys_info.rotvel,10*0x2000/3,10*0x4000/3,10*0x7000/3);
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obj->mtype.phys_info.rotvel = {d_rand() + 0x1000, d_rand()*2 + 0x4000, d_rand()*3 + 0x2000};
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vm_vec_zero(obj->mtype.phys_info.rotthrust);
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obj->lifeleft = 3*DEBRIS_LIFE/4 + fixmul(d_rand(), DEBRIS_LIFE); // Some randomness, so they don't all go away at the same time.
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obj->mtype.phys_info.mass = fixmuldiv(parent.mtype.phys_info.mass, obj->size, parent.size);
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obj->mtype.phys_info.drag = 0; //fl2f(0.2); //parent->mtype.phys_info.drag;
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if (PERSISTENT_DEBRIS)
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{
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obj->mtype.phys_info.flags |= PF_BOUNCE;
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obj->mtype.phys_info.drag = 128;
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}
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}
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void draw_fireball(const vobjptridx_t obj)
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{
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if ( obj->lifeleft > 0 )
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draw_vclip_object(obj,obj->lifeleft,0, get_fireball_id(obj));
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}
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// --------------------------------------------------------------------------------------------------------------------
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// Return true if there is a door here and it is openable
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// It is assumed that the player has all keys.
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static int door_is_openable_by_player(const vcsegptr_t segp, int sidenum)
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{
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const auto wall_num = segp->sides[sidenum].wall_num;
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if (wall_num == wall_none)
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return 0; // no wall here.
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auto &w = *vcwallptr(wall_num);
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const auto wall_type = w.type;
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// Can't open locked doors.
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if ((wall_type == WALL_DOOR && (w.flags & WALL_DOOR_LOCKED)) || wall_type == WALL_CLOSED)
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return 0;
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|
|
return 1;
|
|
|
|
}
|
|
|
|
#define QUEUE_SIZE 64
|
|
|
|
// --------------------------------------------------------------------------------------------------------------------
|
|
// Return a segment %i segments away from initial segment.
|
|
// Returns -1 if can't find a segment that distance away.
|
|
segidx_t pick_connected_segment(const vcsegidx_t start_seg, int max_depth)
|
|
{
|
|
using std::swap;
|
|
int i;
|
|
int cur_depth;
|
|
int head, tail;
|
|
array<segnum_t, QUEUE_SIZE * 2> seg_queue{};
|
|
array<uint8_t, MAX_SEGMENTS> depth{};
|
|
array<uint8_t, MAX_SIDES_PER_SEGMENT> side_rand;
|
|
|
|
visited_segment_bitarray_t visited;
|
|
|
|
head = 0;
|
|
tail = 0;
|
|
seg_queue[head++] = start_seg;
|
|
|
|
cur_depth = 0;
|
|
|
|
std::iota(side_rand.begin(), side_rand.end(), 0);
|
|
|
|
// Now, randomize a bit to start, so we don't always get started in the same direction.
|
|
for (i=0; i<4; i++) {
|
|
int ind1;
|
|
|
|
ind1 = (d_rand() * MAX_SIDES_PER_SEGMENT) >> 15;
|
|
swap(side_rand[ind1], side_rand[i]);
|
|
}
|
|
|
|
while (tail != head) {
|
|
int sidenum, count;
|
|
int ind1, ind2;
|
|
|
|
if (cur_depth >= max_depth) {
|
|
return seg_queue[tail];
|
|
}
|
|
|
|
const auto &&segp = vcsegptr(seg_queue[tail++]);
|
|
tail &= QUEUE_SIZE-1;
|
|
|
|
// to make random, switch a pair of entries in side_rand.
|
|
ind1 = (d_rand() * MAX_SIDES_PER_SEGMENT) >> 15;
|
|
ind2 = (d_rand() * MAX_SIDES_PER_SEGMENT) >> 15;
|
|
swap(side_rand[ind1], side_rand[ind2]);
|
|
count = 0;
|
|
for (sidenum=ind1; count<MAX_SIDES_PER_SEGMENT; count++) {
|
|
int snrand;
|
|
|
|
if (sidenum == MAX_SIDES_PER_SEGMENT)
|
|
sidenum = 0;
|
|
|
|
snrand = side_rand[sidenum];
|
|
auto wall_num = segp->sides[snrand].wall_num;
|
|
sidenum++;
|
|
|
|
if ((wall_num == wall_none || door_is_openable_by_player(segp, snrand)) && IS_CHILD(segp->children[snrand]))
|
|
{
|
|
if (!visited[segp->children[snrand]]) {
|
|
seg_queue[head++] = segp->children[snrand];
|
|
visited[segp->children[snrand]] = true;
|
|
depth[segp->children[snrand]] = cur_depth+1;
|
|
head &= QUEUE_SIZE-1;
|
|
if (head > tail) {
|
|
if (head == tail + QUEUE_SIZE-1)
|
|
Int3(); // queue overflow. Make it bigger!
|
|
} else
|
|
if (head+QUEUE_SIZE == tail + QUEUE_SIZE-1)
|
|
Int3(); // queue overflow. Make it bigger!
|
|
}
|
|
}
|
|
}
|
|
|
|
if (seg_queue[tail] > Highest_segment_index)
|
|
{
|
|
// -- Int3(); // Something bad has happened. Queue is trashed. --MK, 12/13/94
|
|
return segment_none;
|
|
}
|
|
cur_depth = depth[seg_queue[tail]];
|
|
}
|
|
return segment_none;
|
|
}
|
|
|
|
#if defined(DXX_BUILD_DESCENT_I)
|
|
#define BASE_NET_DROP_DEPTH 10
|
|
#elif defined(DXX_BUILD_DESCENT_II)
|
|
#define BASE_NET_DROP_DEPTH 8
|
|
#endif
|
|
|
|
// ------------------------------------------------------------------------------------------------------
|
|
// Choose segment to drop a powerup in.
|
|
// For all active net players, try to create a N segment path from the player. If possible, return that
|
|
// segment. If not possible, try another player. After a few tries, use a random segment.
|
|
// Don't drop if control center in segment.
|
|
static vsegptridx_t choose_drop_segment(playernum_t drop_pnum)
|
|
{
|
|
playernum_t pnum = 0;
|
|
int cur_drop_depth;
|
|
int count;
|
|
vms_vector *player_pos;
|
|
auto &drop_playerobj = *vobjptr(Players[drop_pnum].objnum);
|
|
|
|
d_srand(static_cast<fix>(timer_query()));
|
|
|
|
cur_drop_depth = BASE_NET_DROP_DEPTH + ((d_rand() * BASE_NET_DROP_DEPTH*2) >> 15);
|
|
|
|
player_pos = &drop_playerobj.pos;
|
|
const auto player_seg = drop_playerobj.segnum;
|
|
|
|
segnum_t segnum = segment_none;
|
|
while ((segnum == segment_none) && (cur_drop_depth > BASE_NET_DROP_DEPTH/2)) {
|
|
pnum = (d_rand() * N_players) >> 15;
|
|
count = 0;
|
|
#if defined(DXX_BUILD_DESCENT_I)
|
|
while ((count < N_players) && ((Players[pnum].connected == CONNECT_DISCONNECTED) || (pnum==drop_pnum)))
|
|
#elif defined(DXX_BUILD_DESCENT_II)
|
|
while ((count < N_players) && ((Players[pnum].connected == CONNECT_DISCONNECTED) || (pnum==drop_pnum) || ((Game_mode & (GM_TEAM|GM_CAPTURE)) && (get_team(pnum)==get_team(drop_pnum)))))
|
|
#endif
|
|
{
|
|
pnum = (pnum+1)%N_players;
|
|
count++;
|
|
}
|
|
|
|
if (count == N_players) {
|
|
//if can't valid non-player person, use the player
|
|
pnum = drop_pnum;
|
|
}
|
|
|
|
segnum = pick_connected_segment(vcobjptr(Players[pnum].objnum)->segnum, cur_drop_depth);
|
|
if (segnum == segment_none)
|
|
{
|
|
cur_drop_depth--;
|
|
continue;
|
|
}
|
|
if (Segments[segnum].special == SEGMENT_IS_CONTROLCEN)
|
|
{
|
|
segnum = segment_none;
|
|
}
|
|
else { //don't drop in any children of control centers
|
|
range_for (auto ch, vcsegptr(segnum)->children)
|
|
{
|
|
if (IS_CHILD(ch) && vcsegptr(ch)->special == SEGMENT_IS_CONTROLCEN) {
|
|
segnum = segment_none;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
//bail if not far enough from original position
|
|
if (segnum != segment_none) {
|
|
const auto &&segp = vcsegptridx(segnum);
|
|
const auto &&tempv = compute_segment_center(segp);
|
|
if (find_connected_distance(*player_pos, vcsegptridx(player_seg), tempv, segp, -1, WID_FLY_FLAG) < i2f(20) * cur_drop_depth)
|
|
{
|
|
segnum = segment_none;
|
|
}
|
|
}
|
|
|
|
cur_drop_depth--;
|
|
}
|
|
|
|
if (segnum == segment_none) {
|
|
cur_drop_depth = BASE_NET_DROP_DEPTH;
|
|
while (cur_drop_depth > 0 && segnum == segment_none) // before dropping in random segment, try to find ANY segment which is connected to the player responsible for the drop so object will not spawn in inaccessible areas
|
|
{
|
|
segnum = pick_connected_segment(vcobjptr(Players[drop_pnum].objnum)->segnum, --cur_drop_depth);
|
|
if (segnum != segment_none && vcsegptr(segnum)->special == SEGMENT_IS_CONTROLCEN)
|
|
segnum = segment_none;
|
|
}
|
|
if (segnum == segment_none) // basically it should be impossible segnum == -1 now... but oh well...
|
|
return vsegptridx(static_cast<segnum_t>((d_rand() * Highest_segment_index) >> 15));
|
|
}
|
|
return vsegptridx(segnum);
|
|
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------------
|
|
// (Re)spawns powerup if in a network game.
|
|
void maybe_drop_net_powerup(powerup_type_t powerup_type, bool adjust_cap, bool random_player)
|
|
{
|
|
playernum_t pnum = Player_num;
|
|
if ((Game_mode & GM_MULTI) && !(Game_mode & GM_MULTI_COOP)) {
|
|
if ((Game_mode & GM_NETWORK) && adjust_cap)
|
|
{
|
|
MultiLevelInv_Recount(); // recount current items
|
|
if (!MultiLevelInv_AllowSpawn(powerup_type))
|
|
return;
|
|
}
|
|
|
|
if (Control_center_destroyed || (Network_status == NETSTAT_ENDLEVEL))
|
|
return;
|
|
|
|
if (random_player)
|
|
{
|
|
uint_fast32_t failsafe_count = 0;
|
|
do {
|
|
pnum = d_rand() % MAX_PLAYERS;
|
|
if (failsafe_count > MAX_PLAYERS*4) // that was plenty of tries to find a good player...
|
|
{
|
|
pnum = Player_num; // ... go with Player_num instead
|
|
break;
|
|
}
|
|
failsafe_count++;
|
|
} while (Players[pnum].connected != CONNECT_PLAYING);
|
|
}
|
|
|
|
//--old-- segnum = (d_rand() * Highest_segment_index) >> 15;
|
|
//--old-- Assert((segnum >= 0) && (segnum <= Highest_segment_index));
|
|
//--old-- if (segnum < 0)
|
|
//--old-- segnum = -segnum;
|
|
//--old-- while (segnum > Highest_segment_index)
|
|
//--old-- segnum /= 2;
|
|
|
|
Net_create_loc = 0;
|
|
const auto &&objnum = call_object_create_egg(vobjptr(Players[pnum].objnum), 1, OBJ_POWERUP, powerup_type);
|
|
|
|
if (objnum == object_none)
|
|
return;
|
|
|
|
const auto &&segnum = choose_drop_segment(pnum);
|
|
const auto &&new_pos = pick_random_point_in_seg(segnum);
|
|
multi_send_create_powerup(powerup_type, segnum, objnum, new_pos);
|
|
objnum->pos = new_pos;
|
|
vm_vec_zero(objnum->mtype.phys_info.velocity);
|
|
obj_relink(objnum, segnum);
|
|
|
|
object_create_explosion(segnum, new_pos, i2f(5), VCLIP_POWERUP_DISAPPEARANCE );
|
|
}
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------------
|
|
// Return true if current segment contains some object.
|
|
static csegptr_t segment_contains_powerup(const vcsegptr_t segnum, const powerup_type_t obj_id)
|
|
{
|
|
range_for (const auto objp, objects_in(segnum))
|
|
if (objp->type == OBJ_POWERUP && get_powerup_id(objp) == obj_id)
|
|
return segnum;
|
|
return segment_none;
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------------
|
|
static csegptr_t powerup_nearby_aux(const vcsegptr_t segnum, powerup_type_t object_id, uint_fast32_t depth)
|
|
{
|
|
if (auto r = segment_contains_powerup(segnum, object_id))
|
|
return r;
|
|
if (! -- depth)
|
|
return segment_none;
|
|
range_for (const auto seg2, segnum->children)
|
|
{
|
|
if (seg2 != segment_none)
|
|
if (auto r = powerup_nearby_aux(vcsegptr(seg2), object_id, depth))
|
|
return r;
|
|
}
|
|
return segment_none;
|
|
}
|
|
|
|
|
|
// ------------------------------------------------------------------------------------------------------
|
|
// Return true if some powerup is nearby (within 3 segments).
|
|
static csegptr_t weapon_nearby(const object_base &objp, powerup_type_t weapon_id)
|
|
{
|
|
return powerup_nearby_aux(vcsegptr(objp.segnum), weapon_id, 2);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------------
|
|
void maybe_replace_powerup_with_energy(const vobjptr_t del_obj)
|
|
{
|
|
int weapon_index=-1;
|
|
|
|
if (del_obj->contains_type != OBJ_POWERUP)
|
|
return;
|
|
|
|
if (del_obj->contains_id == POW_CLOAK) {
|
|
if (weapon_nearby(del_obj, static_cast<powerup_type_t>(del_obj->contains_id)) != nullptr)
|
|
{
|
|
del_obj->contains_count = 0;
|
|
}
|
|
return;
|
|
}
|
|
switch (del_obj->contains_id) {
|
|
case POW_VULCAN_WEAPON:
|
|
weapon_index = primary_weapon_index_t::VULCAN_INDEX;
|
|
break;
|
|
case POW_SPREADFIRE_WEAPON:
|
|
weapon_index = primary_weapon_index_t::SPREADFIRE_INDEX;
|
|
break;
|
|
case POW_PLASMA_WEAPON:
|
|
weapon_index = primary_weapon_index_t::PLASMA_INDEX;
|
|
break;
|
|
case POW_FUSION_WEAPON:
|
|
weapon_index = primary_weapon_index_t::FUSION_INDEX;
|
|
break;
|
|
#if defined(DXX_BUILD_DESCENT_II)
|
|
case POW_GAUSS_WEAPON:
|
|
weapon_index = primary_weapon_index_t::GAUSS_INDEX;
|
|
break;
|
|
case POW_HELIX_WEAPON:
|
|
weapon_index = primary_weapon_index_t::HELIX_INDEX;
|
|
break;
|
|
case POW_PHOENIX_WEAPON:
|
|
weapon_index = primary_weapon_index_t::PHOENIX_INDEX;
|
|
break;
|
|
case POW_OMEGA_WEAPON:
|
|
weapon_index = primary_weapon_index_t::OMEGA_INDEX;
|
|
break;
|
|
#endif
|
|
}
|
|
|
|
// Don't drop vulcan ammo if player maxed out.
|
|
auto &player_info = get_local_plrobj().ctype.player_info;
|
|
if ((weapon_index_uses_vulcan_ammo(weapon_index) || del_obj->contains_id == POW_VULCAN_AMMO) &&
|
|
player_info.vulcan_ammo >= VULCAN_AMMO_MAX)
|
|
del_obj->contains_count = 0;
|
|
else if (weapon_index != -1) {
|
|
if (player_has_primary_weapon(player_info, weapon_index).has_weapon() || weapon_nearby(del_obj, static_cast<powerup_type_t>(del_obj->contains_id)) != nullptr)
|
|
{
|
|
if (d_rand() > 16384) {
|
|
#if defined(DXX_BUILD_DESCENT_I)
|
|
del_obj->contains_count = 1;
|
|
#endif
|
|
del_obj->contains_type = OBJ_POWERUP;
|
|
if (weapon_index_uses_vulcan_ammo(weapon_index)) {
|
|
del_obj->contains_id = POW_VULCAN_AMMO;
|
|
}
|
|
else {
|
|
del_obj->contains_id = POW_ENERGY;
|
|
}
|
|
} else {
|
|
#if defined(DXX_BUILD_DESCENT_I)
|
|
del_obj->contains_count = 0;
|
|
#elif defined(DXX_BUILD_DESCENT_II)
|
|
del_obj->contains_type = OBJ_POWERUP;
|
|
del_obj->contains_id = POW_SHIELD_BOOST;
|
|
#endif
|
|
}
|
|
}
|
|
} else if (del_obj->contains_id == POW_QUAD_FIRE)
|
|
{
|
|
if ((player_info.powerup_flags & PLAYER_FLAGS_QUAD_LASERS) || weapon_nearby(del_obj, static_cast<powerup_type_t>(del_obj->contains_id)) != nullptr)
|
|
{
|
|
if (d_rand() > 16384) {
|
|
#if defined(DXX_BUILD_DESCENT_I)
|
|
del_obj->contains_count = 1;
|
|
#endif
|
|
del_obj->contains_type = OBJ_POWERUP;
|
|
del_obj->contains_id = POW_ENERGY;
|
|
} else {
|
|
#if defined(DXX_BUILD_DESCENT_I)
|
|
del_obj->contains_count = 0;
|
|
#elif defined(DXX_BUILD_DESCENT_II)
|
|
del_obj->contains_type = OBJ_POWERUP;
|
|
del_obj->contains_id = POW_SHIELD_BOOST;
|
|
#endif
|
|
}
|
|
}
|
|
}
|
|
|
|
// If this robot was gated in by the boss and it now contains energy, make it contain nothing,
|
|
// else the room gets full of energy.
|
|
if ( (del_obj->matcen_creator == BOSS_GATE_MATCEN_NUM) && (del_obj->contains_id == POW_ENERGY) && (del_obj->contains_type == OBJ_POWERUP) ) {
|
|
del_obj->contains_count = 0;
|
|
}
|
|
|
|
// Change multiplayer extra-lives into invulnerability
|
|
if ((Game_mode & GM_MULTI) && (del_obj->contains_id == POW_EXTRA_LIFE))
|
|
{
|
|
del_obj->contains_id = POW_INVULNERABILITY;
|
|
}
|
|
}
|
|
|
|
#if defined(DXX_BUILD_DESCENT_I)
|
|
#define drop_powerup(type, id, num, init_vel, pos, segnum, player) (drop_powerup)(type, id, num, init_vel, pos, segnum)
|
|
static
|
|
#endif
|
|
objptridx_t drop_powerup(int type, int id, int num, const vms_vector &init_vel, const vms_vector &pos, const vsegptridx_t segnum, bool player)
|
|
{
|
|
objptridx_t objnum = object_none;
|
|
vms_vector new_pos;
|
|
int count;
|
|
|
|
switch (type) {
|
|
case OBJ_POWERUP:
|
|
for (count=0; count<num; count++) {
|
|
int rand_scale;
|
|
auto new_velocity = init_vel;
|
|
const auto old_mag = vm_vec_mag_quick(init_vel);
|
|
|
|
// We want powerups to move more in network mode.
|
|
if ((Game_mode & GM_MULTI) && !(Game_mode & GM_MULTI_ROBOTS)) {
|
|
rand_scale = 4;
|
|
// extra life powerups are converted to invulnerability in multiplayer, for what is an extra life, anyway?
|
|
if (id == POW_EXTRA_LIFE)
|
|
id = POW_INVULNERABILITY;
|
|
} else
|
|
rand_scale = 2;
|
|
|
|
new_velocity.x += fixmul(old_mag+F1_0*32, d_rand()*rand_scale - 16384*rand_scale);
|
|
new_velocity.y += fixmul(old_mag+F1_0*32, d_rand()*rand_scale - 16384*rand_scale);
|
|
new_velocity.z += fixmul(old_mag+F1_0*32, d_rand()*rand_scale - 16384*rand_scale);
|
|
|
|
// Give keys zero velocity so they can be tracked better in multi
|
|
|
|
if ((Game_mode & GM_MULTI) && (id >= POW_KEY_BLUE) && (id <= POW_KEY_GOLD))
|
|
vm_vec_zero(new_velocity);
|
|
|
|
new_pos = pos;
|
|
// new_pos.x += (d_rand()-16384)*8;
|
|
// new_pos.y += (d_rand()-16384)*8;
|
|
// new_pos.z += (d_rand()-16384)*8;
|
|
|
|
if (Game_mode & GM_MULTI)
|
|
{
|
|
if (Net_create_loc >= MAX_NET_CREATE_OBJECTS)
|
|
{
|
|
return object_none;
|
|
}
|
|
#if defined(DXX_BUILD_DESCENT_II)
|
|
if ((Game_mode & GM_NETWORK) && Network_status == NETSTAT_ENDLEVEL)
|
|
return object_none;
|
|
#endif
|
|
}
|
|
auto obj = obj_create( OBJ_POWERUP, id, segnum, new_pos, &vmd_identity_matrix, Powerup_info[id].size, CT_POWERUP, MT_PHYSICS, RT_POWERUP);
|
|
objnum = obj;
|
|
|
|
if (objnum == object_none)
|
|
{
|
|
Int3();
|
|
return object_none;
|
|
}
|
|
|
|
if (Game_mode & GM_MULTI)
|
|
{
|
|
Net_create_objnums[Net_create_loc++] = objnum;
|
|
}
|
|
obj->mtype.phys_info.velocity = new_velocity;
|
|
|
|
obj->mtype.phys_info.drag = 512; //1024;
|
|
obj->mtype.phys_info.mass = F1_0;
|
|
|
|
obj->mtype.phys_info.flags = PF_BOUNCE;
|
|
|
|
obj->rtype.vclip_info.vclip_num = Powerup_info[get_powerup_id(obj)].vclip_num;
|
|
obj->rtype.vclip_info.frametime = Vclip[obj->rtype.vclip_info.vclip_num].frame_time;
|
|
obj->rtype.vclip_info.framenum = 0;
|
|
|
|
switch (get_powerup_id(obj)) {
|
|
case POW_MISSILE_1:
|
|
case POW_MISSILE_4:
|
|
case POW_SHIELD_BOOST:
|
|
case POW_ENERGY:
|
|
obj->lifeleft = (d_rand() + F1_0*3) * 64; // Lives for 3 to 3.5 binary minutes (a binary minute is 64 seconds)
|
|
if (Game_mode & GM_MULTI)
|
|
obj->lifeleft /= 2;
|
|
break;
|
|
default:
|
|
// if (Game_mode & GM_MULTI)
|
|
// obj->lifeleft = (d_rand() + F1_0*3) * 64; // Lives for 5 to 5.5 binary minutes (a binary minute is 64 seconds)
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case OBJ_ROBOT:
|
|
for (count=0; count<num; count++) {
|
|
int rand_scale;
|
|
auto new_velocity = vm_vec_normalized_quick(init_vel);
|
|
const auto old_mag = vm_vec_mag_quick(init_vel);
|
|
|
|
// We want powerups to move more in network mode.
|
|
// if (Game_mode & GM_MULTI)
|
|
// rand_scale = 4;
|
|
// else
|
|
rand_scale = 2;
|
|
|
|
new_velocity.x += (d_rand()-16384)*2;
|
|
new_velocity.y += (d_rand()-16384)*2;
|
|
new_velocity.z += (d_rand()-16384)*2;
|
|
|
|
vm_vec_normalize_quick(new_velocity);
|
|
vm_vec_scale(new_velocity, (F1_0*32 + old_mag) * rand_scale);
|
|
new_pos = pos;
|
|
// This is dangerous, could be outside mine.
|
|
// new_pos.x += (d_rand()-16384)*8;
|
|
// new_pos.y += (d_rand()-16384)*7;
|
|
// new_pos.z += (d_rand()-16384)*6;
|
|
|
|
#if defined(DXX_BUILD_DESCENT_I)
|
|
const auto robot_id = ObjId[type];
|
|
#elif defined(DXX_BUILD_DESCENT_II)
|
|
const auto robot_id = id;
|
|
#endif
|
|
const auto &&obj = obj_create(OBJ_ROBOT, id, segnum, new_pos, &vmd_identity_matrix, Polygon_models[Robot_info[robot_id].model_num].rad, CT_AI, MT_PHYSICS, RT_POLYOBJ);
|
|
|
|
objnum = obj;
|
|
if (objnum == object_none)
|
|
{
|
|
Int3();
|
|
return object_none;
|
|
}
|
|
#if defined(DXX_BUILD_DESCENT_II)
|
|
if (player)
|
|
obj->flags |= OF_PLAYER_DROPPED;
|
|
#endif
|
|
|
|
if (Game_mode & GM_MULTI)
|
|
{
|
|
Net_create_objnums[Net_create_loc++] = objnum;
|
|
}
|
|
//Set polygon-object-specific data
|
|
|
|
obj->rtype.pobj_info.model_num = Robot_info[get_robot_id(obj)].model_num;
|
|
obj->rtype.pobj_info.subobj_flags = 0;
|
|
|
|
//set Physics info
|
|
|
|
obj->mtype.phys_info.velocity = new_velocity;
|
|
|
|
obj->mtype.phys_info.mass = Robot_info[get_robot_id(obj)].mass;
|
|
obj->mtype.phys_info.drag = Robot_info[get_robot_id(obj)].drag;
|
|
|
|
obj->mtype.phys_info.flags |= (PF_LEVELLING);
|
|
|
|
obj->shields = Robot_info[get_robot_id(obj)].strength;
|
|
|
|
obj->ctype.ai_info.behavior = ai_behavior::AIB_NORMAL;
|
|
ai_local *ailp = &obj->ctype.ai_info.ail;
|
|
ailp->player_awareness_type = player_awareness_type_t::PA_WEAPON_ROBOT_COLLISION;
|
|
ailp->player_awareness_time = F1_0*3;
|
|
obj->ctype.ai_info.CURRENT_STATE = AIS_LOCK;
|
|
obj->ctype.ai_info.GOAL_STATE = AIS_LOCK;
|
|
obj->ctype.ai_info.REMOTE_OWNER = -1;
|
|
}
|
|
|
|
#if defined(DXX_BUILD_DESCENT_II)
|
|
// At JasenW's request, robots which contain robots
|
|
// sometimes drop shields.
|
|
if (d_rand() > 16384)
|
|
drop_powerup(OBJ_POWERUP, POW_SHIELD_BOOST, 1, init_vel, pos, segnum, false);
|
|
#endif
|
|
break;
|
|
|
|
default:
|
|
Error("Error: Illegal type (%i) in object spawning.\n", type);
|
|
}
|
|
|
|
return objnum;
|
|
}
|
|
|
|
#if defined(DXX_BUILD_DESCENT_II)
|
|
static bool skip_create_egg_powerup(const object &player, powerup_type_t powerup)
|
|
{
|
|
fix current;
|
|
auto &player_info = player.ctype.player_info;
|
|
if (powerup == POW_SHIELD_BOOST)
|
|
current = player.shields;
|
|
else if (powerup == POW_ENERGY)
|
|
current = player_info.energy;
|
|
else
|
|
return false;
|
|
int limit;
|
|
if (current >= i2f(150))
|
|
limit = 8192;
|
|
else if (current >= i2f(100))
|
|
limit = 16384;
|
|
else
|
|
return false;
|
|
return d_rand() > limit;
|
|
}
|
|
#endif
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// Returns created object number.
|
|
// If object dropped by player, set flag.
|
|
static objptridx_t object_create_player_egg(int type, int id, int num, const vms_vector &init_vel, const vms_vector &pos, const vsegptridx_t segnum)
|
|
{
|
|
return drop_powerup(type, id, num, init_vel, pos, segnum, true);
|
|
}
|
|
|
|
objptridx_t object_create_robot_egg(int type, int id, int num, const vms_vector &init_vel, const vms_vector &pos, const vsegptridx_t segnum)
|
|
{
|
|
#if defined(DXX_BUILD_DESCENT_II)
|
|
if (!(Game_mode & GM_MULTI))
|
|
{
|
|
if (type == OBJ_POWERUP)
|
|
{
|
|
if (skip_create_egg_powerup(get_local_plrobj(), static_cast<powerup_type_t>(id)))
|
|
return object_none;
|
|
}
|
|
}
|
|
#endif
|
|
const auto rval = drop_powerup(type, id, num, init_vel, pos, segnum, false);
|
|
#if defined(DXX_BUILD_DESCENT_II)
|
|
if (rval != object_none)
|
|
{
|
|
if (type == OBJ_POWERUP)
|
|
{
|
|
if (id == POW_VULCAN_WEAPON || id == POW_GAUSS_WEAPON)
|
|
rval->ctype.powerup_info.count = VULCAN_WEAPON_AMMO_AMOUNT;
|
|
else if (id == POW_OMEGA_WEAPON)
|
|
rval->ctype.powerup_info.count = MAX_OMEGA_CHARGE;
|
|
}
|
|
}
|
|
#endif
|
|
return rval;
|
|
}
|
|
|
|
objptridx_t object_create_robot_egg(const vobjptr_t objp)
|
|
{
|
|
return object_create_robot_egg(objp->contains_type, objp->contains_id, objp->contains_count, objp->mtype.phys_info.velocity, objp->pos, vsegptridx(objp->segnum));
|
|
}
|
|
|
|
// -- extern int Items_destroyed;
|
|
|
|
// -------------------------------------------------------------------------------------------------------
|
|
// Put count objects of type type (eg, powerup), id = id (eg, energy) into *objp, then drop them! Yippee!
|
|
// Returns created object number.
|
|
objptridx_t call_object_create_egg(const object_base &objp, int count, int type, int id)
|
|
{
|
|
if (count > 0) {
|
|
return object_create_player_egg(type, id, count, objp.mtype.phys_info.velocity, objp.pos, vsegptridx(objp.segnum));
|
|
}
|
|
|
|
return object_none;
|
|
}
|
|
|
|
//what vclip does this explode with?
|
|
int get_explosion_vclip(const vcobjptr_t obj, explosion_vclip_stage stage)
|
|
{
|
|
if (obj->type==OBJ_ROBOT) {
|
|
const auto vclip_ptr = stage == explosion_vclip_stage::s0
|
|
? &robot_info::exp1_vclip_num
|
|
: &robot_info::exp2_vclip_num;
|
|
const auto vclip_num = Robot_info[get_robot_id(obj)].*vclip_ptr;
|
|
if (vclip_num > -1)
|
|
return vclip_num;
|
|
}
|
|
else if (obj->type==OBJ_PLAYER && Player_ship->expl_vclip_num>-1)
|
|
return Player_ship->expl_vclip_num;
|
|
|
|
return VCLIP_SMALL_EXPLOSION; //default
|
|
}
|
|
|
|
//blow up a polygon model
|
|
static void explode_model(object_base &obj)
|
|
{
|
|
Assert(obj.render_type == RT_POLYOBJ);
|
|
|
|
const auto poly_model_num = obj.rtype.pobj_info.model_num;
|
|
const auto dying_model_num = Dying_modelnums[poly_model_num];
|
|
const auto model_num = (dying_model_num != -1)
|
|
? (obj.rtype.pobj_info.model_num = dying_model_num)
|
|
: poly_model_num;
|
|
const auto n_models = Polygon_models[model_num].n_models;
|
|
if (n_models > 1) {
|
|
for (unsigned i = 1; i < n_models; ++i)
|
|
#if defined(DXX_BUILD_DESCENT_II)
|
|
if (!(i == 5 && obj.type == OBJ_ROBOT && get_robot_id(obj) == 44)) //energy sucker energy part
|
|
#endif
|
|
object_create_debris(obj,i);
|
|
|
|
//make parent object only draw center part
|
|
obj.rtype.pobj_info.subobj_flags = 1;
|
|
}
|
|
}
|
|
|
|
//if the object has a destroyed model, switch to it. Otherwise, delete it.
|
|
static void maybe_delete_object(object_base &del_obj)
|
|
{
|
|
const auto dead_modelnum = Dead_modelnums[del_obj.rtype.pobj_info.model_num];
|
|
if (dead_modelnum != -1)
|
|
{
|
|
del_obj.rtype.pobj_info.model_num = dead_modelnum;
|
|
del_obj.flags |= OF_DESTROYED;
|
|
}
|
|
else { //normal, multi-stage explosion
|
|
if (del_obj.type == OBJ_PLAYER)
|
|
del_obj.render_type = RT_NONE;
|
|
else
|
|
del_obj.flags |= OF_SHOULD_BE_DEAD;
|
|
}
|
|
}
|
|
|
|
// -------------------------------------------------------------------------------------------------------
|
|
//blow up an object. Takes the object to destroy, and the point of impact
|
|
void explode_object(const vobjptridx_t hitobj,fix delay_time)
|
|
{
|
|
if (hitobj->flags & OF_EXPLODING) return;
|
|
|
|
if (delay_time) { //wait a little while before creating explosion
|
|
//create a placeholder object to do the delay, with id==-1
|
|
auto obj = obj_create(OBJ_FIREBALL, -1, vsegptridx(hitobj->segnum), hitobj->pos, &vmd_identity_matrix, 0,
|
|
CT_EXPLOSION,MT_NONE,RT_NONE);
|
|
if (obj == object_none ) {
|
|
maybe_delete_object(hitobj); //no explosion, die instantly
|
|
Int3();
|
|
return;
|
|
}
|
|
//now set explosion-specific data
|
|
|
|
obj->lifeleft = delay_time;
|
|
obj->ctype.expl_info.delete_objnum = hitobj;
|
|
obj->ctype.expl_info.delete_time = -1;
|
|
obj->ctype.expl_info.spawn_time = 0;
|
|
|
|
}
|
|
else {
|
|
int vclip_num;
|
|
|
|
vclip_num = get_explosion_vclip(hitobj, explosion_vclip_stage::s0);
|
|
|
|
auto expl_obj = object_create_explosion(vsegptridx(hitobj->segnum), hitobj->pos, fixmul(hitobj->size,EXPLOSION_SCALE), vclip_num);
|
|
|
|
if (! expl_obj) {
|
|
maybe_delete_object(hitobj); //no explosion, die instantly
|
|
return;
|
|
}
|
|
|
|
//don't make debris explosions have physics, because they often
|
|
//happen when the debris has hit the wall, so the fireball is trying
|
|
//to move into the wall, which shows off FVI problems.
|
|
if (hitobj->type!=OBJ_DEBRIS && hitobj->movement_type==MT_PHYSICS) {
|
|
expl_obj->movement_type = MT_PHYSICS;
|
|
expl_obj->mtype.phys_info = hitobj->mtype.phys_info;
|
|
}
|
|
|
|
if (hitobj->render_type==RT_POLYOBJ && hitobj->type!=OBJ_DEBRIS)
|
|
explode_model(hitobj);
|
|
|
|
maybe_delete_object(hitobj);
|
|
}
|
|
|
|
hitobj->flags |= OF_EXPLODING; //say that this is blowing up
|
|
hitobj->control_type = CT_NONE; //become inert while exploding
|
|
|
|
}
|
|
|
|
|
|
//do whatever needs to be done for this piece of debris for this frame
|
|
void do_debris_frame(const vobjptridx_t obj)
|
|
{
|
|
Assert(obj->control_type == CT_DEBRIS);
|
|
|
|
if (obj->lifeleft < 0)
|
|
explode_object(obj,0);
|
|
|
|
}
|
|
|
|
//do whatever needs to be done for this explosion for this frame
|
|
void do_explosion_sequence(const vobjptr_t obj)
|
|
{
|
|
Assert(obj->control_type == CT_EXPLOSION);
|
|
|
|
//See if we should die of old age
|
|
if (obj->lifeleft <= 0 ) { // We died of old age
|
|
obj->flags |= OF_SHOULD_BE_DEAD;
|
|
obj->lifeleft = 0;
|
|
}
|
|
|
|
//See if we should create a secondary explosion
|
|
if (obj->lifeleft <= obj->ctype.expl_info.spawn_time) {
|
|
auto del_obj = vobjptridx(obj->ctype.expl_info.delete_objnum);
|
|
auto &spawn_pos = del_obj->pos;
|
|
Assert(del_obj->type==OBJ_ROBOT || del_obj->type==OBJ_CLUTTER || del_obj->type==OBJ_CNTRLCEN || del_obj->type == OBJ_PLAYER);
|
|
Assert(del_obj->segnum != segment_none);
|
|
|
|
const auto &&expl_obj = [&]{
|
|
const auto vclip_num = get_explosion_vclip(del_obj, explosion_vclip_stage::s1);
|
|
#if defined(DXX_BUILD_DESCENT_II)
|
|
if (del_obj->type == OBJ_ROBOT)
|
|
{
|
|
const auto &ri = Robot_info[get_robot_id(del_obj)];
|
|
if (ri.badass)
|
|
return object_create_badass_explosion(object_none, vsegptridx(del_obj->segnum), spawn_pos, fixmul(del_obj->size, EXPLOSION_SCALE), vclip_num, F1_0 * ri.badass, i2f(4) * ri.badass, i2f(35) * ri.badass, object_none);
|
|
}
|
|
#endif
|
|
return object_create_explosion(vsegptridx(del_obj->segnum), spawn_pos, fixmul(del_obj->size, EXPLOSION_SCALE), vclip_num);
|
|
}();
|
|
|
|
if ((del_obj->contains_count > 0) && !(Game_mode & GM_MULTI)) { // Multiplayer handled outside of this code!!
|
|
// If dropping a weapon that the player has, drop energy instead, unless it's vulcan, in which case drop vulcan ammo.
|
|
if (del_obj->contains_type == OBJ_POWERUP)
|
|
maybe_replace_powerup_with_energy(del_obj);
|
|
object_create_robot_egg(del_obj);
|
|
} else if ((del_obj->type == OBJ_ROBOT) && !(Game_mode & GM_MULTI)) { // Multiplayer handled outside this code!!
|
|
robot_info *robptr = &Robot_info[get_robot_id(del_obj)];
|
|
if (robptr->contains_count) {
|
|
if (((d_rand() * 16) >> 15) < robptr->contains_prob) {
|
|
del_obj->contains_count = ((d_rand() * robptr->contains_count) >> 15) + 1;
|
|
del_obj->contains_type = robptr->contains_type;
|
|
del_obj->contains_id = robptr->contains_id;
|
|
maybe_replace_powerup_with_energy(del_obj);
|
|
object_create_robot_egg(del_obj);
|
|
}
|
|
}
|
|
#if defined(DXX_BUILD_DESCENT_II)
|
|
if (robot_is_thief(robptr))
|
|
drop_stolen_items(del_obj);
|
|
|
|
if (robot_is_companion(robptr)) {
|
|
DropBuddyMarker(del_obj);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
const robot_info *robptr = &Robot_info[get_robot_id(del_obj)];
|
|
if ( robptr->exp2_sound_num > -1 )
|
|
digi_link_sound_to_pos(robptr->exp2_sound_num, vsegptridx(del_obj->segnum), 0, spawn_pos, 0, F1_0);
|
|
//PLAY_SOUND_3D( Robot_info[del_obj->id].exp2_sound_num, spawn_pos, del_obj->segnum );
|
|
|
|
obj->ctype.expl_info.spawn_time = -1;
|
|
|
|
//make debris
|
|
if (del_obj->render_type==RT_POLYOBJ)
|
|
explode_model(del_obj); //explode a polygon model
|
|
|
|
//set some parm in explosion
|
|
//If num_objects < MAX_USED_OBJECTS, expl_obj could be set to dead before this setting causing the delete_obj not to be removed. If so, directly delete del_obj
|
|
if (expl_obj && !(expl_obj->flags & OF_SHOULD_BE_DEAD))
|
|
{
|
|
if (del_obj->movement_type == MT_PHYSICS) {
|
|
expl_obj->movement_type = MT_PHYSICS;
|
|
expl_obj->mtype.phys_info = del_obj->mtype.phys_info;
|
|
}
|
|
|
|
expl_obj->ctype.expl_info.delete_time = expl_obj->lifeleft/2;
|
|
expl_obj->ctype.expl_info.delete_objnum = del_obj;
|
|
}
|
|
else {
|
|
maybe_delete_object(del_obj);
|
|
}
|
|
|
|
}
|
|
|
|
//See if we should delete an object
|
|
if (obj->lifeleft <= obj->ctype.expl_info.delete_time) {
|
|
const auto &&del_obj = vobjptr(obj->ctype.expl_info.delete_objnum);
|
|
obj->ctype.expl_info.delete_time = -1;
|
|
maybe_delete_object(del_obj);
|
|
}
|
|
}
|
|
|
|
#define EXPL_WALL_TIME (f1_0)
|
|
#define EXPL_WALL_TOTAL_FIREBALLS 32
|
|
#if defined(DXX_BUILD_DESCENT_I)
|
|
#define EXPL_WALL_FIREBALL_SIZE 0x48000 //smallest size
|
|
#elif defined(DXX_BUILD_DESCENT_II)
|
|
#define EXPL_WALL_FIREBALL_SIZE (0x48000*6/10) //smallest size
|
|
#endif
|
|
|
|
}
|
|
|
|
namespace dcx {
|
|
|
|
array<expl_wall, MAX_EXPLODING_WALLS> expl_wall_list;
|
|
|
|
void init_exploding_walls()
|
|
{
|
|
range_for (auto &i, expl_wall_list)
|
|
i.segnum = segment_none;
|
|
}
|
|
|
|
}
|
|
|
|
namespace dsx {
|
|
|
|
//explode the given wall
|
|
void explode_wall(const vsegptridx_t segnum,int sidenum)
|
|
{
|
|
//find a free slot
|
|
const auto e = end(expl_wall_list);
|
|
const auto predicate = [](expl_wall &w) {
|
|
return w.segnum == segment_none;
|
|
};
|
|
const auto i = std::find_if(begin(expl_wall_list), e, predicate);
|
|
if (i == e)
|
|
{ //didn't find slot.
|
|
Int3();
|
|
return;
|
|
}
|
|
|
|
auto &w = *i;
|
|
w.segnum = segnum;
|
|
w.sidenum = sidenum;
|
|
w.time = 0;
|
|
|
|
//play one long sound for whole door wall explosion
|
|
const auto pos = compute_center_point_on_side(segnum,sidenum);
|
|
digi_link_sound_to_pos( SOUND_EXPLODING_WALL,segnum, sidenum, pos, 0, F1_0 );
|
|
|
|
}
|
|
|
|
//handle walls for this frame
|
|
//note: this wall code assumes the wall is not triangulated
|
|
void do_exploding_wall_frame()
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{
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range_for (auto &i, expl_wall_list)
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{
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auto segnum = i.segnum;
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if (segnum != segment_none) {
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int sidenum = i.sidenum;
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fix oldfrac,newfrac;
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int old_count,new_count,e; //n,
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oldfrac = fixdiv(i.time,EXPL_WALL_TIME);
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i.time += FrameTime;
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if (i.time > EXPL_WALL_TIME)
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i.time = EXPL_WALL_TIME;
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|
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const auto seg = vsegptridx(segnum);
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if (i.time>(EXPL_WALL_TIME*3)/4) {
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auto &w1 = *vwallptr(seg->sides[sidenum].wall_num);
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const auto a = w1.clip_num;
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const auto n = WallAnims[a].num_frames;
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const auto &&csegp = seg.absolute_sibling(seg->children[sidenum]);
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auto cside = find_connect_side(seg, csegp);
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wall_set_tmap_num(seg,sidenum,csegp,cside,a,n-1);
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w1.flags |= WALL_BLASTED;
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vwallptr(csegp->sides[cside].wall_num)->flags |= WALL_BLASTED;
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}
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newfrac = fixdiv(i.time,EXPL_WALL_TIME);
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old_count = f2i(EXPL_WALL_TOTAL_FIREBALLS * fixmul(oldfrac,oldfrac));
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new_count = f2i(EXPL_WALL_TOTAL_FIREBALLS * fixmul(newfrac,newfrac));
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//n = new_count - old_count;
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//now create all the next explosions
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for (e=old_count;e<new_count;e++) {
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fix size;
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//calc expl position
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|
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const auto vertnum_list = get_side_verts(seg,sidenum);
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|
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const auto &v0 = Vertices[vertnum_list[0]];
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const auto &v1 = Vertices[vertnum_list[1]];
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const auto &v2 = Vertices[vertnum_list[2]];
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const auto vv0 = vm_vec_sub(v0,v1);
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const auto vv1 = vm_vec_sub(v2,v1);
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auto pos = vm_vec_scale_add(v1,vv0,d_rand()*2);
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vm_vec_scale_add2(pos,vv1,d_rand()*2);
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|
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size = EXPL_WALL_FIREBALL_SIZE + (2*EXPL_WALL_FIREBALL_SIZE * e / EXPL_WALL_TOTAL_FIREBALLS);
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|
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//fireballs start away from door, with subsequent ones getting closer
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vm_vec_scale_add2(pos, vcsegptr(segnum)->sides[sidenum].normals[0], size * (EXPL_WALL_TOTAL_FIREBALLS - e) / EXPL_WALL_TOTAL_FIREBALLS);
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|
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const auto &&is = vsegptridx(i.segnum);
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if (e & 3) //3 of 4 are normal
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object_create_explosion(is, pos, size, VCLIP_SMALL_EXPLOSION);
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else
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object_create_badass_explosion(object_none, is, pos,
|
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size,
|
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VCLIP_SMALL_EXPLOSION,
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|
i2f(4), // damage strength
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|
i2f(20), // damage radius
|
|
i2f(50), // damage force
|
|
object_none // parent id
|
|
);
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}
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|
if (i.time >= EXPL_WALL_TIME)
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|
i.segnum = segment_none; //flag this slot as free
|
|
}
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|
}
|
|
|
|
}
|
|
|
|
#if defined(DXX_BUILD_DESCENT_II)
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|
//creates afterburner blobs behind the specified object
|
|
void drop_afterburner_blobs(const vobjptr_t obj, int count, fix size_scale, fix lifetime)
|
|
{
|
|
auto pos_left = vm_vec_scale_add(obj->pos, obj->orient.fvec, -obj->size);
|
|
vm_vec_scale_add2(pos_left, obj->orient.rvec, -obj->size/4);
|
|
const auto pos_right = vm_vec_scale_add(pos_left, obj->orient.rvec, obj->size/2);
|
|
|
|
if (count == 1)
|
|
vm_vec_avg(pos_left, pos_left, pos_right);
|
|
|
|
{
|
|
const auto &&segnum = find_point_seg(pos_left, vsegptridx(obj->segnum));
|
|
if (segnum != segment_none)
|
|
object_create_explosion(segnum, pos_left, size_scale, VCLIP_AFTERBURNER_BLOB );
|
|
}
|
|
|
|
if (count > 1) {
|
|
const auto &&segnum = find_point_seg(pos_right, vsegptridx(obj->segnum));
|
|
if (segnum != segment_none) {
|
|
auto blob_obj = object_create_explosion(segnum, pos_right, size_scale, VCLIP_AFTERBURNER_BLOB );
|
|
if (lifetime != -1 && blob_obj != object_none)
|
|
blob_obj->lifeleft = lifetime;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* reads n expl_wall structs from a PHYSFS_File and swaps if specified
|
|
*/
|
|
void expl_wall_read_n_swap(PHYSFS_File *fp, int swap, partial_range_t<expl_wall *> r)
|
|
{
|
|
range_for (auto &e, r)
|
|
{
|
|
disk_expl_wall d;
|
|
PHYSFS_read(fp, &d, sizeof(d), 1);
|
|
if (swap)
|
|
{
|
|
d.segnum = SWAPINT(d.segnum);
|
|
d.sidenum = SWAPINT(d.sidenum);
|
|
d.time = SWAPINT(d.time);
|
|
}
|
|
e.segnum = d.segnum;
|
|
e.sidenum = d.sidenum;
|
|
e.time = d.time;
|
|
}
|
|
}
|
|
#endif
|
|
}
|