343 lines
10 KiB
C
343 lines
10 KiB
C
/*
|
|
THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
|
|
SOFTWARE CORPORATION ("PARALLAX"). PARALLAX, IN DISTRIBUTING THE CODE TO
|
|
END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
|
|
ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
|
|
IN USING, DISPLAYING, AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
|
|
SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
|
|
FREE PURPOSES. IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
|
|
CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES. THE END-USER UNDERSTANDS
|
|
AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
|
|
COPYRIGHT 1993-1998 PARALLAX SOFTWARE CORPORATION. ALL RIGHTS RESERVED.
|
|
*/
|
|
/*
|
|
*
|
|
* Code for the control center
|
|
*
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include "error.h"
|
|
#include "inferno.h"
|
|
#include "cntrlcen.h"
|
|
#include "game.h"
|
|
#include "laser.h"
|
|
#include "gameseq.h"
|
|
#include "ai.h"
|
|
#include "multi.h"
|
|
#include "fuelcen.h"
|
|
#include "wall.h"
|
|
#include "object.h"
|
|
#include "robot.h"
|
|
|
|
vms_vector controlcen_gun_points[MAX_CONTROLCEN_GUNS];
|
|
vms_vector controlcen_gun_dirs[MAX_CONTROLCEN_GUNS];
|
|
|
|
control_center_triggers ControlCenterTriggers;
|
|
|
|
int N_controlcen_guns;
|
|
int Control_center_been_hit;
|
|
int Control_center_player_been_seen;
|
|
int Control_center_next_fire_time;
|
|
int Control_center_present;
|
|
|
|
vms_vector Gun_pos[MAX_CONTROLCEN_GUNS], Gun_dir[MAX_CONTROLCEN_GUNS];
|
|
|
|
// -----------------------------------------------------------------------------
|
|
//return the position & orientation of a gun on the control center object
|
|
void calc_controlcen_gun_point(vms_vector *gun_point,vms_vector *gun_dir,object *obj,int gun_num)
|
|
{
|
|
vms_matrix m;
|
|
|
|
Assert(obj->type == OBJ_CNTRLCEN);
|
|
Assert(obj->render_type==RT_POLYOBJ);
|
|
|
|
Assert(gun_num < N_controlcen_guns);
|
|
|
|
//instance gun position & orientation
|
|
|
|
vm_copy_transpose_matrix(&m,&obj->orient);
|
|
|
|
vm_vec_rotate(gun_point,&controlcen_gun_points[gun_num],&m);
|
|
vm_vec_add2(gun_point,&obj->pos);
|
|
vm_vec_rotate(gun_dir,&controlcen_gun_dirs[gun_num],&m);
|
|
}
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// Look at control center guns, find best one to fire at *objp.
|
|
// Return best gun number (one whose direction dotted with vector to player is largest).
|
|
// If best gun has negative dot, return -1, meaning no gun is good.
|
|
int calc_best_gun(int num_guns, vms_vector *gun_pos, vms_vector *gun_dir, vms_vector *objpos)
|
|
{
|
|
int i;
|
|
fix best_dot;
|
|
int best_gun;
|
|
|
|
best_dot = -F1_0*2;
|
|
best_gun = -1;
|
|
|
|
for (i=0; i<num_guns; i++) {
|
|
fix dot;
|
|
vms_vector gun_vec;
|
|
|
|
vm_vec_sub(&gun_vec, objpos, &gun_pos[i]);
|
|
vm_vec_normalize_quick(&gun_vec);
|
|
dot = vm_vec_dot(&gun_dir[i], &gun_vec);
|
|
|
|
if (dot > best_dot) {
|
|
best_dot = dot;
|
|
best_gun = i;
|
|
}
|
|
}
|
|
|
|
Assert(best_gun != -1); // Contact Mike. This is impossible. Or maybe you're getting an unnormalized vector somewhere.
|
|
|
|
if (best_dot < 0)
|
|
return -1;
|
|
else
|
|
return best_gun;
|
|
|
|
}
|
|
|
|
int Dead_controlcen_object_num=-1;
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// Called every frame. If control center been destroyed, then actually do something.
|
|
void do_controlcen_dead_frame(void)
|
|
{
|
|
if (!Control_center_present)
|
|
return;
|
|
|
|
if ((Dead_controlcen_object_num != -1) && (Fuelcen_seconds_left > 0))
|
|
if (d_rand() < FrameTime*4)
|
|
create_small_fireball_on_object(&Objects[Dead_controlcen_object_num], F1_0*3, 1);
|
|
}
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// Called when control center gets destroyed.
|
|
// This code is common to whether control center is implicitly imbedded in a boss,
|
|
// or is an object of its own.
|
|
// if objp == NULL that means the boss was the control center and don't set Dead_controlcen_object_num
|
|
void do_controlcen_destroyed_stuff(object *objp)
|
|
{
|
|
int i;
|
|
|
|
// Must toggle walls whether it is a boss or control center.
|
|
for (i=0;i<ControlCenterTriggers.num_links;i++)
|
|
wall_toggle(&Segments[ControlCenterTriggers.seg[i]], ControlCenterTriggers.side[i]);
|
|
|
|
// And start the countdown stuff.
|
|
Fuelcen_control_center_destroyed = 1;
|
|
|
|
|
|
if (!Control_center_present)
|
|
return;
|
|
|
|
if (objp != NULL)
|
|
Dead_controlcen_object_num = objp-Objects;
|
|
|
|
}
|
|
|
|
// -----------------------------------------------------------------------------
|
|
//do whatever this thing does in a frame
|
|
void do_controlcen_frame(object *obj)
|
|
{
|
|
int best_gun_num;
|
|
static fix controlcen_death_silence = 0;
|
|
|
|
// If a boss level, then Control_center_present will be 0.
|
|
if (!Control_center_present)
|
|
return;
|
|
|
|
#ifndef NDEBUG
|
|
if (!Robot_firing_enabled || (Game_suspended & SUSP_ROBOTS))
|
|
return;
|
|
#else
|
|
if (!Robot_firing_enabled)
|
|
return;
|
|
#endif
|
|
|
|
if (!(Control_center_been_hit || Control_center_player_been_seen)) {
|
|
if (!(FrameCount % 8)) { // Do every so often...
|
|
vms_vector vec_to_player;
|
|
fix dist_to_player;
|
|
int i;
|
|
segment *segp = &Segments[obj->segnum];
|
|
|
|
// This is a hack. Since the control center is not processed by
|
|
// ai_do_frame, it doesn't know to deal with cloaked dudes. It
|
|
// seems to work in single-player mode because it is actually using
|
|
// the value of Believed_player_position that was set by the last
|
|
// person to go through ai_do_frame. But since a no-robots game
|
|
// never goes through ai_do_frame, I'm making it so the control
|
|
// center can spot cloaked dudes.
|
|
#ifdef NETWORK
|
|
if (Game_mode & GM_MULTI)
|
|
Believed_player_pos = Objects[Players[Player_num].objnum].pos;
|
|
#endif
|
|
// Hack for special control centers which are isolated and not reachable because the
|
|
// real control center is inside the boss.
|
|
for (i=0; i<MAX_SIDES_PER_SEGMENT; i++)
|
|
if (segp->children[i] != -1)
|
|
break;
|
|
if (i == MAX_SIDES_PER_SEGMENT)
|
|
return;
|
|
|
|
vm_vec_sub(&vec_to_player, &ConsoleObject->pos, &obj->pos);
|
|
dist_to_player = vm_vec_normalize_quick(&vec_to_player);
|
|
if (dist_to_player < F1_0*200) {
|
|
Control_center_player_been_seen = player_is_visible_from_object(obj, &obj->pos, 0, &vec_to_player);
|
|
Control_center_next_fire_time = 0;
|
|
}
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
if (Player_is_dead)
|
|
controlcen_death_silence += FrameTime;
|
|
else
|
|
controlcen_death_silence = 0;
|
|
|
|
if ((Control_center_next_fire_time < 0) && !(controlcen_death_silence > F1_0*2)) {
|
|
if (Players[Player_num].flags & PLAYER_FLAGS_CLOAKED)
|
|
best_gun_num = calc_best_gun(N_controlcen_guns, Gun_pos, Gun_dir, &Believed_player_pos);
|
|
else
|
|
best_gun_num = calc_best_gun(N_controlcen_guns, Gun_pos, Gun_dir, &ConsoleObject->pos);
|
|
|
|
if (best_gun_num != -1) {
|
|
vms_vector vec_to_goal;
|
|
fix dist_to_player;
|
|
fix delta_fire_time;
|
|
|
|
if (Players[Player_num].flags & PLAYER_FLAGS_CLOAKED) {
|
|
vm_vec_sub(&vec_to_goal, &Believed_player_pos, &Gun_pos[best_gun_num]);
|
|
dist_to_player = vm_vec_normalize_quick(&vec_to_goal);
|
|
} else {
|
|
vm_vec_sub(&vec_to_goal, &ConsoleObject->pos, &Gun_pos[best_gun_num]);
|
|
dist_to_player = vm_vec_normalize_quick(&vec_to_goal);
|
|
}
|
|
|
|
if (dist_to_player > F1_0*300)
|
|
{
|
|
Control_center_been_hit = 0;
|
|
Control_center_player_been_seen = 0;
|
|
return;
|
|
}
|
|
|
|
#ifdef NETWORK
|
|
if (Game_mode & GM_MULTI)
|
|
multi_send_controlcen_fire(&vec_to_goal, best_gun_num, obj-Objects);
|
|
#endif
|
|
Laser_create_new_easy( &vec_to_goal, &Gun_pos[best_gun_num], obj-Objects, CONTROLCEN_WEAPON_NUM, 1);
|
|
|
|
// 1/4 of time, fire another thing, not directly at player, so it might hit him if he's constantly moving.
|
|
if (d_rand() < 32767/4) {
|
|
vms_vector randvec;
|
|
|
|
make_random_vector(&randvec);
|
|
vm_vec_scale_add2(&vec_to_goal, &randvec, F1_0/4);
|
|
vm_vec_normalize_quick(&vec_to_goal);
|
|
#ifdef NETWORK
|
|
if (Game_mode & GM_MULTI)
|
|
multi_send_controlcen_fire(&vec_to_goal, best_gun_num, obj-Objects);
|
|
#endif
|
|
Laser_create_new_easy( &vec_to_goal, &Gun_pos[best_gun_num], obj-Objects, CONTROLCEN_WEAPON_NUM, 1);
|
|
}
|
|
|
|
delta_fire_time = (NDL - Difficulty_level) * F1_0/4;
|
|
#ifdef NETWORK
|
|
if (Game_mode & GM_MULTI) // slow down rate of fire in multi player
|
|
delta_fire_time *= 2;
|
|
#endif
|
|
Control_center_next_fire_time = delta_fire_time;
|
|
|
|
}
|
|
} else
|
|
Control_center_next_fire_time -= FrameTime;
|
|
|
|
}
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// This must be called at the start of each level.
|
|
// If this level contains a boss and mode != multiplayer, don't do control center stuff. (Ghost out control center object.)
|
|
// If this level contains a boss and mode == multiplayer, do control center stuff.
|
|
void init_controlcen_for_level(void)
|
|
{
|
|
int i;
|
|
object *objp;
|
|
int cntrlcen_objnum=-1, boss_objnum=-1;
|
|
|
|
for (i=0; i<=Highest_object_index; i++) {
|
|
objp = &Objects[i];
|
|
if (objp->type == OBJ_CNTRLCEN)
|
|
{
|
|
if (cntrlcen_objnum != -1)
|
|
;
|
|
else
|
|
cntrlcen_objnum = i;
|
|
}
|
|
if ((objp->type == OBJ_ROBOT) && (Robot_info[objp->id].boss_flag)) {
|
|
if (boss_objnum != -1)
|
|
;
|
|
else
|
|
boss_objnum = i;
|
|
}
|
|
}
|
|
|
|
#ifndef NDEBUG
|
|
if (cntrlcen_objnum == -1) {
|
|
return;
|
|
}
|
|
|
|
#endif
|
|
#ifdef NETWORK
|
|
if ( (boss_objnum != -1) && !((Game_mode & GM_MULTI) && !(Game_mode & GM_MULTI_ROBOTS)) ) {
|
|
#else
|
|
if (boss_objnum != -1) {
|
|
#endif
|
|
if (cntrlcen_objnum != -1) { // note link to above!!!
|
|
Objects[cntrlcen_objnum].type = OBJ_GHOST;
|
|
Objects[cntrlcen_objnum].render_type = RT_NONE;
|
|
Control_center_present = 0;
|
|
}
|
|
} else {
|
|
// Compute all gun positions.
|
|
objp = &Objects[cntrlcen_objnum];
|
|
for (i=0; i<N_controlcen_guns; i++)
|
|
calc_controlcen_gun_point(&Gun_pos[i], &Gun_dir[i], objp, i);
|
|
Control_center_present = 1;
|
|
|
|
// Boost control center strength at higher levels.
|
|
if (Current_level_num >= 0)
|
|
objp->shields = F1_0*200 + (F1_0*200/4) * Current_level_num;
|
|
else
|
|
objp->shields = F1_0*200 - Current_level_num*F1_0*100;
|
|
}
|
|
|
|
// Say the control center has not yet been hit.
|
|
Control_center_been_hit = 0;
|
|
Control_center_player_been_seen = 0;
|
|
Control_center_next_fire_time = 0;
|
|
|
|
Dead_controlcen_object_num = -1;
|
|
}
|
|
|
|
/*
|
|
* reads a control_center_triggers structure from a CFILE
|
|
*/
|
|
extern int control_center_triggers_read_n(control_center_triggers *cct, int n, CFILE *fp)
|
|
{
|
|
int i, j;
|
|
|
|
for (i = 0; i < n; i++)
|
|
{
|
|
cct->num_links = cfile_read_short(fp);
|
|
for (j = 0; j < MAX_WALLS_PER_LINK; j++)
|
|
cct->seg[j] = cfile_read_short(fp);
|
|
for (j = 0; j < MAX_WALLS_PER_LINK; j++)
|
|
cct->side[j] = cfile_read_short(fp);
|
|
}
|
|
return i;
|
|
}
|