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dxx-rebirth/similar/main/game.cpp
Kp d9d2bac092 Use enum class for apply_damage_to_player::possibly_friendly 
Also, remove a redundant invulnerability check in one caller.
apply_damage_to_player already tests for invulnerability and returns if
appropriate.
2022-07-23 20:58:10 +00:00

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/*
* Portions of this file are copyright Rebirth contributors and licensed as
* described in COPYING.txt.
* Portions of this file are copyright Parallax Software and licensed
* according to the Parallax license below.
* See COPYING.txt for license details.
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 1993-1999 PARALLAX SOFTWARE CORPORATION. ALL RIGHTS RESERVED.
*/
/*
*
* Game loop for Inferno
*
*/
#include "dxxsconf.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <SDL.h>
#include <ctime>
#if DXX_USE_SCREENSHOT_FORMAT_PNG
#include <png.h>
#include "vers_id.h"
#endif
#if DXX_USE_OGL
#include "ogl_init.h"
#endif
#include "pstypes.h"
#include "console.h"
#include "gr.h"
#include "inferno.h"
#include "game.h"
#include "key.h"
#include "config.h"
#include "object.h"
#include "dxxerror.h"
#include "joy.h"
#include "pcx.h"
#include "timer.h"
#include "render.h"
#include "laser.h"
#include "screens.h"
#include "textures.h"
#include "gauges.h"
#include "3d.h"
#include "effects.h"
#include "menu.h"
#include "player.h"
#include "gameseg.h"
#include "wall.h"
#include "ai.h"
#include "fuelcen.h"
#include "digi.h"
#include "u_mem.h"
#include "palette.h"
#include "morph.h"
#include "lighting.h"
#include "newdemo.h"
#include "collide.h"
#include "weapon.h"
#include "sounds.h"
#include "args.h"
#include "gameseq.h"
#include "automap.h"
#include "text.h"
#include "powerup.h"
#include "fireball.h"
#include "newmenu.h"
#include "gamefont.h"
#include "endlevel.h"
#include "kconfig.h"
#include "mouse.h"
#include "switch.h"
#include "controls.h"
#include "songs.h"
#include "multi.h"
#include "cntrlcen.h"
#include "pcx.h"
#include "state.h"
#include "piggy.h"
#include "ai.h"
#include "robot.h"
#include "playsave.h"
#include "maths.h"
#include "hudmsg.h"
#if defined(DXX_BUILD_DESCENT_II)
#include <climits>
#include "gamepal.h"
#include "movie.h"
#endif
#include "event.h"
#include "window.h"
#if DXX_USE_EDITOR
#include "editor/editor.h"
#include "editor/esegment.h"
#endif
#include "d_enumerate.h"
#include "d_levelstate.h"
#include "d_range.h"
#include "compiler-range_for.h"
#include "partial_range.h"
#include "segiter.h"
d_time_fix ThisLevelTime;
namespace dcx {
namespace {
static fix64 last_timer_value;
static fix64 sync_timer_value;
}
grs_subcanvas Screen_3d_window; // The rectangle for rendering the mine to
int force_cockpit_redraw=0;
int PaletteRedAdd, PaletteGreenAdd, PaletteBlueAdd;
int Game_suspended=0; //if non-zero, nothing moves but player
game_mode_flags Game_mode;
int Global_missile_firing_count = 0;
std::optional<Difficulty_level_type> build_difficulty_level_from_untrusted(const int8_t untrusted)
{
switch (untrusted)
{
case static_cast<int8_t>(Difficulty_level_type::_0):
case static_cast<int8_t>(Difficulty_level_type::_1):
case static_cast<int8_t>(Difficulty_level_type::_2):
case static_cast<int8_t>(Difficulty_level_type::_3):
case static_cast<int8_t>(Difficulty_level_type::_4):
return Difficulty_level_type{untrusted};
default:
return std::nullopt;
}
}
}
// Function prototypes for GAME.C exclusively.
namespace dsx {
game_window *Game_wind;
namespace {
static window_event_result GameProcessFrame(const d_level_shared_robot_info_state &);
static bool FireLaser(player_info &, const control_info &Controls);
static void powerup_grab_cheat_all();
}
#if defined(DXX_BUILD_DESCENT_II)
d_flickering_light_state Flickering_light_state;
namespace {
static void slide_textures(void);
static void flicker_lights(const d_level_shared_destructible_light_state &LevelSharedDestructibleLightState, d_flickering_light_state &fls, fvmsegptridx &vmsegptridx);
}
#endif
// Cheats
game_cheats cheats;
// ==============================================================================================
//this is called once per game
void init_game()
{
init_objects();
init_special_effects();
Clear_window = 2; // do portal only window clear.
}
}
namespace dcx {
void reset_palette_add()
{
PaletteRedAdd = 0;
PaletteGreenAdd = 0;
PaletteBlueAdd = 0;
}
#if !DXX_USE_OGL
constexpr screen_mode initial_small_game_screen_mode{320, 200};
#endif
constexpr screen_mode initial_large_game_screen_mode{1024, 768};
screen_mode Game_screen_mode = initial_large_game_screen_mode;
StereoFormat VR_stereo;
fix VR_eye_width = F1_0;
int VR_eye_offset = 0;
int VR_sync_width = 20;
grs_subcanvas VR_hud_left;
grs_subcanvas VR_hud_right;
}
namespace dsx {
void init_stereo()
{
#if DXX_USE_OGL
// init stereo options
if (CGameArg.OglStereo || CGameArg.OglStereoView) {
if (VR_stereo == StereoFormat::None && !VR_eye_offset)
VR_stereo = (CGameArg.OglStereoView) ? static_cast<StereoFormat>(CGameArg.OglStereoView % (static_cast<unsigned>(StereoFormat::HighestFormat) + 1)) : StereoFormat::AboveBelow;
constexpr int half_width_eye_offset = -6;
constexpr int full_width_eye_offset = -12;
switch (VR_stereo)
{
case StereoFormat::None:
case StereoFormat::AboveBelow:
case StereoFormat::AboveBelowSync:
VR_eye_offset = full_width_eye_offset;
break;
case StereoFormat::SideBySideFullHeight:
case StereoFormat::SideBySideHalfHeight:
VR_eye_offset = half_width_eye_offset;
break;
}
VR_eye_width = (F1_0 * 7) / 10; // Descent 1.5 defaults
VR_sync_width = (20 * SHEIGHT) / 480;
PlayerCfg.CockpitMode[1] = cockpit_mode_t::full_screen;
}
else {
VR_stereo = StereoFormat::None;
}
#endif
}
//initialize the various canvases on the game screen
//called every time the screen mode or cockpit changes
void init_cockpit()
{
//Initialize the on-screen canvases
if (Screen_mode != SCREEN_GAME)
return;
if ( Screen_mode == SCREEN_EDITOR )
PlayerCfg.CockpitMode[1] = cockpit_mode_t::full_screen;
#if !DXX_USE_OGL
if (PlayerCfg.CockpitMode[1] != CM_LETTERBOX)
{
#if defined(DXX_BUILD_DESCENT_II)
int HiresGFXAvailable = !GameArg.GfxSkipHiresGFX;
#endif
auto full_screen_mode = HiresGFXAvailable ? initial_large_game_screen_mode : initial_small_game_screen_mode;
if (Game_screen_mode != full_screen_mode) {
PlayerCfg.CockpitMode[1] = CM_FULL_SCREEN;
}
}
#endif
gr_set_default_canvas();
auto &canvas = *grd_curcanv;
switch( PlayerCfg.CockpitMode[1] ) {
case cockpit_mode_t::full_cockpit:
game_init_render_sub_buffers(canvas, 0, 0, SWIDTH, (SHEIGHT*2)/3);
break;
case cockpit_mode_t::rear_view:
{
unsigned x1 = 0, y1 = 0, x2 = SWIDTH, y2 = (SHEIGHT*2)/3;
const auto mode =
#if defined(DXX_BUILD_DESCENT_II)
HIRESMODE
? static_cast<cockpit_mode_t>(static_cast<uint8_t>(cockpit_mode_t::rear_view) + (Num_cockpits / 2))
:
#endif
cockpit_mode_t::rear_view;
auto &cb = cockpit_bitmap[mode];
PIGGY_PAGE_IN(cb);
auto &bm = GameBitmaps[cb.index];
gr_bitblt_find_transparent_area(bm, x1, y1, x2, y2);
game_init_render_sub_buffers(canvas, x1 * (static_cast<float>(SWIDTH) / bm.bm_w), y1 * (static_cast<float>(SHEIGHT) / bm.bm_h), (x2 - x1 + 1) * (static_cast<float>(SWIDTH) / bm.bm_w), (y2 - y1 + 2) * (static_cast<float>(SHEIGHT) / bm.bm_h));
break;
}
case cockpit_mode_t::full_screen:
{
unsigned w = SWIDTH;
unsigned h = SHEIGHT;
switch (VR_stereo)
{
case StereoFormat::None:
/* Preserve width */
/* Preserve height */
break;
case StereoFormat::AboveBelow:
case StereoFormat::AboveBelowSync:
/* Preserve width */
/* Change height */
h /= 2;
break;
case StereoFormat::SideBySideHalfHeight:
/* Change width */
/* Change height */
h /= 2;
[[fallthrough]];
case StereoFormat::SideBySideFullHeight:
/* Change width */
/* Preserve height */
w /= 2;
break;
}
game_init_render_sub_buffers(canvas, 0, 0, w, h);
}
break;
case cockpit_mode_t::status_bar:
game_init_render_sub_buffers(canvas, 0, 0, SWIDTH, (HIRESMODE?(SHEIGHT*2)/2.6:(SHEIGHT*2)/2.72));
break;
case cockpit_mode_t::letterbox: {
const unsigned gsm_height = grd_curscreen->get_screen_height();
const unsigned w = grd_curscreen->get_screen_width();
const unsigned h = (gsm_height * 3) / 4; // true letterbox size (16:9)
const unsigned x = 0;
const unsigned y = (gsm_height - h) / 2;
const uint8_t color = 0;
auto &canvas = *grd_curcanv;
gr_rect(canvas, x, 0, w, gsm_height - h, color);
gr_rect(canvas, x, gsm_height - h, w, gsm_height, color);
game_init_render_sub_buffers(canvas, x, y, w, h);
break;
}
}
gr_set_default_canvas();
}
}
//selects a given cockpit (or lack of one). See types in game.h
void select_cockpit(const cockpit_mode_t mode)
{
// skip switching cockpit views while stereo viewport active
if (VR_stereo != StereoFormat::None && mode != cockpit_mode_t::full_screen)
return;
if (mode != PlayerCfg.CockpitMode[1]) { //new mode
PlayerCfg.CockpitMode[1]=mode;
init_cockpit();
}
}
namespace dcx {
//force cockpit redraw next time. call this if you've trashed the screen
void reset_cockpit()
{
force_cockpit_redraw=1;
last_drawn_cockpit = cockpit_mode_t{UINT8_MAX};
}
void game_init_render_sub_buffers(grs_canvas &canvas, const int x, const int y, const int w, const int h)
{
gr_clear_canvas(canvas, 0);
gr_init_sub_canvas(Screen_3d_window, canvas, x, y, w, h);
if (VR_stereo != StereoFormat::None)
{
// offset HUD screen rects to force out-of-screen parallax on HUD overlays
const int dx = (VR_eye_offset < 0) ? -VR_eye_offset : 0;
const int dy = VR_sync_width / 2;
struct {
uint16_t x;
uint16_t y;
uint16_t w;
uint16_t h;
} l, r;
switch (VR_stereo) {
case StereoFormat::None:
default:
return;
case StereoFormat::AboveBelow:
l.x = x + dx;
l.y = y;
l.w = r.w = w - dx;
l.h = r.h = h;
r.x = x;
r.y = y + h;
break;
case StereoFormat::AboveBelowSync:
l.x = x + dx;
l.y = y;
l.w = r.w = w - dx;
l.h = r.h = h - dy;
r.x = x;
r.y = y + h + dy;
break;
case StereoFormat::SideBySideFullHeight:
l.x = x + dx;
l.y = r.y = y;
l.w = r.w = w - dx;
l.h = r.h = h;
r.x = x + w;
break;
case StereoFormat::SideBySideHalfHeight:
l.x = x + dx;
l.y = r.y = y + (h / 2);
l.w = r.w = w - dx;
l.h = r.h = h;
r.x = x + w;
break;
}
gr_init_sub_canvas(VR_hud_left, grd_curscreen->sc_canvas, l.x, l.y, l.w, l.h);
gr_init_sub_canvas(VR_hud_right, grd_curscreen->sc_canvas, r.x, r.y, r.w, r.h);
}
}
}
namespace dsx {
//called to change the screen mode. Parameter sm is the new mode, one of
//SMODE_GAME or SMODE_EDITOR. returns mode acutally set (could be other
//mode if cannot init requested mode)
int set_screen_mode(int sm)
{
if ( (Screen_mode == sm) && !((sm==SCREEN_GAME) && (grd_curscreen->get_screen_mode() != Game_screen_mode)) && !(sm==SCREEN_MENU) )
{
return 1;
}
#if DXX_USE_EDITOR
Canv_editor = NULL;
#endif
Screen_mode = sm;
#if SDL_MAJOR_VERSION == 1
switch( Screen_mode )
{
case SCREEN_MENU:
if (grd_curscreen->get_screen_mode() != Game_screen_mode)
if (gr_set_mode(Game_screen_mode))
Error("Cannot set screen mode.");
break;
case SCREEN_GAME:
if (grd_curscreen->get_screen_mode() != Game_screen_mode)
if (gr_set_mode(Game_screen_mode))
Error("Cannot set screen mode.");
break;
#if DXX_USE_EDITOR
case SCREEN_EDITOR:
{
const screen_mode editor_mode{800, 600};
if (grd_curscreen->get_screen_mode() != editor_mode)
{
int gr_error;
if ((gr_error = gr_set_mode(editor_mode)) != 0) { //force into game scrren
Warning("Cannot init editor screen (error=%d)",gr_error);
return 0;
}
}
}
break;
#endif
#if defined(DXX_BUILD_DESCENT_II)
case SCREEN_MOVIE:
{
const screen_mode movie_mode{MOVIE_WIDTH, MOVIE_HEIGHT};
if (grd_curscreen->get_screen_mode() != movie_mode)
{
if (gr_set_mode(movie_mode))
Error("Cannot set screen mode for game!");
gr_palette_load( gr_palette );
}
}
break;
#endif
default:
Error("Invalid screen mode %d",sm);
}
#endif
return 1;
}
}
namespace dcx {
namespace {
class game_world_time_paused
{
unsigned time_paused;
public:
explicit operator bool() const
{
return time_paused;
}
void increase_pause_count();
void decrease_pause_count();
};
static game_world_time_paused time_paused;
}
void game_world_time_paused::increase_pause_count()
{
if (time_paused==0) {
const fix64 time = timer_update();
last_timer_value = time - last_timer_value;
if (last_timer_value < 0) {
last_timer_value = 0;
}
}
time_paused++;
}
void game_world_time_paused::decrease_pause_count()
{
Assert(time_paused > 0);
--time_paused;
if (time_paused==0) {
const fix64 time = timer_update();
last_timer_value = time - last_timer_value;
}
}
void start_time()
{
time_paused.decrease_pause_count();
}
void stop_time()
{
time_paused.increase_pause_count();
}
pause_game_world_time::pause_game_world_time()
{
stop_time();
}
pause_game_world_time::~pause_game_world_time()
{
start_time();
}
namespace {
static void game_flush_common_inputs()
{
event_flush();
key_flush();
joy_flush();
mouse_flush();
}
}
}
namespace dsx {
void game_flush_inputs(control_info &Controls)
{
Controls = {};
game_flush_common_inputs();
}
void game_flush_respawn_inputs(control_info &Controls)
{
static_cast<control_info::fire_controls_t &>(Controls.state) = {};
}
}
namespace dcx {
/*
* timer that every sets d_tick_step true and increments d_tick_count every 1000/DESIGNATED_GAME_FPS ms.
*/
void calc_d_tick()
{
static fix timer = 0;
auto t = timer + FrameTime;
d_tick_step = t >= DESIGNATED_GAME_FRAMETIME;
if (d_tick_step)
{
d_tick_count++;
if (d_tick_count > 1000000)
d_tick_count = 0;
t -= DESIGNATED_GAME_FRAMETIME;
}
timer = t;
}
void reset_time()
{
last_timer_value = timer_update();
}
}
void calc_frame_time()
{
fix last_frametime = FrameTime;
const auto vsync = CGameCfg.VSync;
const auto bound = f1_0 / (likely(vsync) ? MAXIMUM_FPS : CGameArg.SysMaxFPS);
const auto may_sleep = !CGameArg.SysNoNiceFPS && !vsync;
for (;;)
{
const auto timer_value = timer_update();
FrameTime = timer_value - last_timer_value;
if (FrameTime > 0 && timer_value - sync_timer_value >= bound)
{
last_timer_value = timer_value;
sync_timer_value += bound;
if (sync_timer_value + bound < timer_value) {
sync_timer_value = timer_value;
}
break;
}
if (Game_mode & GM_MULTI)
multi_do_frame(); // during long wait, keep packets flowing
if (may_sleep)
timer_delay_ms(1);
}
if ( cheats.turbo )
FrameTime *= 2;
if (FrameTime < 0) //if bogus frametime...
FrameTime = (last_frametime==0?1:last_frametime); //...then use time from last frame
GameTime64 += FrameTime;
calc_d_tick();
#ifdef NEWHOMER
calc_d_homer_tick();
#endif
}
namespace dsx {
#if DXX_USE_EDITOR
void move_player_2_segment(const vmsegptridx_t seg, const sidenum_t side)
{
auto &LevelSharedVertexState = LevelSharedSegmentState.get_vertex_state();
auto &Objects = LevelUniqueObjectState.Objects;
auto &Vertices = LevelSharedVertexState.get_vertices();
auto &vmobjptr = Objects.vmptr;
auto &vmobjptridx = Objects.vmptridx;
const auto &&console = vmobjptridx(ConsoleObject);
auto &vcvertptr = Vertices.vcptr;
compute_segment_center(vcvertptr, console->pos, seg);
auto vp = compute_center_point_on_side(vcvertptr, seg, side);
vm_vec_sub2(vp, console->pos);
vm_vector_2_matrix(console->orient, vp, nullptr, nullptr);
obj_relink(vmobjptr, vmsegptr, console, seg);
}
#endif
}
namespace dcx {
namespace {
#if DXX_USE_SCREENSHOT_FORMAT_PNG
struct RAIIpng_struct
{
png_struct *png_ptr;
png_info *info_ptr = nullptr;
RAIIpng_struct(png_struct *const p) :
png_ptr(p)
{
}
~RAIIpng_struct()
{
png_destroy_write_struct(&png_ptr, &info_ptr);
}
};
struct d_screenshot : RAIIpng_struct
{
using RAIIpng_struct::RAIIpng_struct;
/* error handling callbacks */
[[noreturn]]
static void png_error_cb(png_struct *png, const char *str);
static void png_warn_cb(png_struct *png, const char *str);
/* output callbacks */
static void png_write_cb(png_struct *png, uint8_t *buf, png_size_t);
static void png_flush_cb(png_struct *png);
class png_exception : std::exception
{
};
};
void d_screenshot::png_error_cb(png_struct *const png, const char *const str)
{
/* libpng requires that this function not return to its caller, and
* will abort the program if this requirement is violated. However,
* throwing an exception that unwinds out past libpng is permitted.
*/
(void)png;
con_printf(CON_URGENT, "libpng error: %s", str);
throw png_exception();
}
void d_screenshot::png_warn_cb(png_struct *const png, const char *const str)
{
(void)png;
con_printf(CON_URGENT, "libpng warning: %s", str);
}
void d_screenshot::png_write_cb(png_struct *const png, uint8_t *const buf, const png_size_t size)
{
const auto file = reinterpret_cast<PHYSFS_File *>(png_get_io_ptr(png));
PHYSFS_write(file, buf, size, 1);
}
void d_screenshot::png_flush_cb(png_struct *const png)
{
(void)png;
}
void record_screenshot_time(const struct tm &tm, png_struct *const png_ptr, png_info *const info_ptr)
{
#ifdef PNG_tIME_SUPPORTED
png_time pt{};
pt.year = tm.tm_year + 1900;
pt.month = tm.tm_mon + 1;
pt.day = tm.tm_mday;
pt.hour = tm.tm_hour;
pt.minute = tm.tm_min;
pt.second = tm.tm_sec;
png_set_tIME(png_ptr, info_ptr, &pt);
#else
(void)png_ptr;
(void)info_ptr;
con_printf(CON_NORMAL, "libpng configured without support for time chunk: screenshot will lack time record.");
#endif
}
#ifdef PNG_TEXT_SUPPORTED
void record_screenshot_text_metadata(png_struct *const png_ptr, png_info *const info_ptr)
{
std::array<png_text, 6> text_fields{};
char descent_version[80];
char descent_build_datetime[21];
std::string current_mission_path;
ntstring<MISSION_NAME_LEN> current_mission_name;
char current_level_number[4];
char viewer_segment[sizeof("65536")];
unsigned idx = 0;
char key_descent_version[] = "Rebirth.version";
{
auto &t = text_fields[idx++];
auto &text = descent_version;
t.key = key_descent_version;
text[sizeof(text) - 1] = 0;
strncpy(text, g_descent_version, sizeof(text) - 1);
t.text = text;
t.compression = PNG_TEXT_COMPRESSION_NONE;
}
char key_descent_build_datetime[] = "Rebirth.build_datetime";
{
auto &t = text_fields[idx++];
auto &text = descent_build_datetime;
t.key = key_descent_build_datetime;
text[sizeof(text) - 1] = 0;
strncpy(text, g_descent_build_datetime, sizeof(text) - 1);
t.text = text;
t.compression = PNG_TEXT_COMPRESSION_NONE;
}
char key_current_mission_path[] = "Rebirth.mission.pathname";
char key_current_mission_name[] = "Rebirth.mission.textname";
char key_viewer_segment[] = "Rebirth.viewer_segment";
char key_current_level_number[] = "Rebirth.current_level_number";
if (const auto current_mission = Current_mission.get())
{
{
auto &t = text_fields[idx++];
t.key = key_current_mission_path;
current_mission_path = current_mission->path;
t.text = &current_mission_path[0];
t.compression = PNG_TEXT_COMPRESSION_NONE;
}
{
auto &t = text_fields[idx++];
t.key = key_current_mission_name;
current_mission_name = current_mission->mission_name;
t.text = current_mission_name.data();
t.compression = PNG_TEXT_COMPRESSION_NONE;
}
{
auto &t = text_fields[idx++];
t.key = key_current_level_number;
t.text = current_level_number;
t.compression = PNG_TEXT_COMPRESSION_NONE;
snprintf(current_level_number, sizeof(current_level_number), "%i", Current_level_num);
}
if (const auto viewer = Viewer)
{
auto &t = text_fields[idx++];
t.key = key_viewer_segment;
t.text = viewer_segment;
t.compression = PNG_TEXT_COMPRESSION_NONE;
snprintf(viewer_segment, sizeof(viewer_segment), "%hu", viewer->segnum);
}
}
png_set_text(png_ptr, info_ptr, text_fields.data(), idx);
}
#endif
#if DXX_USE_OGL
#define write_screenshot_png(F,T,B,P) write_screenshot_png(F,T,B)
#endif
unsigned write_screenshot_png(PHYSFS_File *const file, const struct tm *const tm, const grs_bitmap &bitmap, const palette_array_t &pal)
{
const unsigned bm_w = ((bitmap.bm_w + 3) & ~3);
const unsigned bm_h = ((bitmap.bm_h + 3) & ~3);
#if DXX_USE_OGL
const unsigned bufsize = bm_w * bm_h * 3;
const auto buf = std::make_unique<uint8_t[]>(bufsize);
const auto begin_byte_buffer = buf.get();
glReadPixels(0, 0, bm_w, bm_h, GL_RGB, GL_UNSIGNED_BYTE, begin_byte_buffer);
#else
const unsigned bufsize = bitmap.bm_rowsize * bm_h;
const auto begin_byte_buffer = bitmap.bm_mdata;
#endif
d_screenshot ss(png_create_write_struct(PNG_LIBPNG_VER_STRING, &ss, &d_screenshot::png_error_cb, &d_screenshot::png_warn_cb));
if (!ss.png_ptr)
{
con_puts(CON_URGENT, "Cannot save screenshot: libpng png_create_write_struct failed");
return 1;
}
/* Assert that Rebirth type rgb_t is layout compatible with
* libpng type png_color, so that the Rebirth palette_array_t
* can be safely reinterpret_cast to an array of png_color.
* Without this, it would be necessary to copy each rgb_t
* palette entry into a libpng png_color.
*/
static_assert(sizeof(png_color) == sizeof(rgb_t), "size mismatch");
static_assert(offsetof(png_color, red) == offsetof(rgb_t, r), "red offsetof mismatch");
static_assert(offsetof(png_color, green) == offsetof(rgb_t, g), "green offsetof mismatch");
static_assert(offsetof(png_color, blue) == offsetof(rgb_t, b), "blue offsetof mismatch");
try {
ss.info_ptr = png_create_info_struct(ss.png_ptr);
if (tm)
record_screenshot_time(*tm, ss.png_ptr, ss.info_ptr);
png_set_write_fn(ss.png_ptr, file, &d_screenshot::png_write_cb, &d_screenshot::png_flush_cb);
#if DXX_USE_OGL
const auto color_type = PNG_COLOR_TYPE_RGB;
#else
png_set_PLTE(ss.png_ptr, ss.info_ptr, reinterpret_cast<const png_color *>(pal.data()), pal.size());
const auto color_type = PNG_COLOR_TYPE_PALETTE;
#endif
png_set_IHDR(ss.png_ptr, ss.info_ptr, bm_w, bm_h, 8 /* always 256 colors */, color_type, PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
#ifdef PNG_TEXT_SUPPORTED
record_screenshot_text_metadata(ss.png_ptr, ss.info_ptr);
#endif
png_write_info(ss.png_ptr, ss.info_ptr);
std::array<png_byte *, 1024> row_pointers;
const auto rpb = row_pointers.begin();
auto o = rpb;
const auto end_byte_buffer = begin_byte_buffer + bufsize;
#if DXX_USE_OGL
/* OpenGL glReadPixels returns an image with origin in bottom
* left. Write rows from end back to beginning, since PNG
* expects origin in top left. If rows were written in memory
* order, the image would be vertically flipped.
*/
const uint_fast32_t stride = bm_w * 3; /* Without palette, written data is 3-byte-sized RGB tuples of color */
for (auto p = end_byte_buffer; p != begin_byte_buffer;)
#else
const uint_fast32_t stride = bm_w; /* With palette, written data is byte-sized indices into a color table */
/* SDL canvas uses an image with origin in top left. Write rows
* in memory order, since this matches the PNG layout.
*/
for (auto p = begin_byte_buffer; p != end_byte_buffer;)
#endif
{
#if DXX_USE_OGL
p -= stride;
#else
p += stride;
#endif
*o++ = p;
if (o == row_pointers.end())
{
/* Internal capacity exhausted. Flush rows and rewind
* to the beginning of the array.
*/
o = rpb;
png_write_rows(ss.png_ptr, o, row_pointers.size());
}
}
/* Flush any trailing rows */
if (const auto len = o - rpb)
png_write_rows(ss.png_ptr, rpb, len);
png_write_end(ss.png_ptr, ss.info_ptr);
return 0;
} catch (const d_screenshot::png_exception &) {
/* Destructor unwind will handle the exception. This catch is
* only required to prevent further propagation.
*
* Return nonzero to instruct the caller to delete the failed
* file.
*/
return 1;
}
}
#endif
}
#if DXX_USE_SCREENSHOT
void save_screen_shot(int automap_flag)
{
#if DXX_USE_OGL
if (!CGameArg.DbgGlReadPixelsOk)
{
if (!automap_flag)
HUD_init_message_literal(HM_DEFAULT, "glReadPixels not supported on your configuration");
return;
}
#endif
#if DXX_USE_SCREENSHOT_FORMAT_PNG
#define DXX_SCREENSHOT_FILE_EXTENSION "png"
#elif DXX_USE_SCREENSHOT_FORMAT_LEGACY
#if DXX_USE_OGL
#define DXX_SCREENSHOT_FILE_EXTENSION "tga"
#else
#define DXX_SCREENSHOT_FILE_EXTENSION "pcx"
#endif
#endif
if (!PHYSFSX_exists(SCRNS_DIR,0))
PHYSFS_mkdir(SCRNS_DIR); //try making directory
pause_game_world_time p;
unsigned tm_sec;
unsigned tm_min;
unsigned tm_hour;
unsigned tm_mday;
unsigned tm_mon;
unsigned tm_year;
const auto t = time(nullptr);
struct tm *tm = nullptr;
if (t == static_cast<time_t>(-1) || !(tm = gmtime(&t)))
tm_year = tm_mon = tm_mday = tm_hour = tm_min = tm_sec = 0;
else
{
tm_sec = tm->tm_sec;
tm_min = tm->tm_min;
tm_hour = tm->tm_hour;
tm_mday = tm->tm_mday;
tm_mon = tm->tm_mon + 1;
tm_year = tm->tm_year + 1900;
}
/* Colon is not legal in Windows filenames, so use - to separate
* hour:minute:second.
*/
#define DXX_SCREENSHOT_TIME_FORMAT_STRING SCRNS_DIR "%04u-%02u-%02u.%02u-%02u-%02u"
#define DXX_SCREENSHOT_TIME_FORMAT_VALUES tm_year, tm_mon, tm_mday, tm_hour, tm_min, tm_sec
/* Reserve extra space for the trailing -NN disambiguation. This
* is only used if multiple screenshots get the same time, so it is
* unlikely to be seen in practice and very unlikely to be exhausted
* (unless the clock is frozen or returns invalid times).
*/
char savename[sizeof(SCRNS_DIR) + sizeof("2000-01-01.00-00-00.NN.ext")];
snprintf(savename, sizeof(savename), DXX_SCREENSHOT_TIME_FORMAT_STRING "." DXX_SCREENSHOT_FILE_EXTENSION, DXX_SCREENSHOT_TIME_FORMAT_VALUES);
for (unsigned savenum = 0; PHYSFS_exists(savename) && savenum != 100; ++savenum)
{
snprintf(savename, sizeof(savename), DXX_SCREENSHOT_TIME_FORMAT_STRING ".%02u." DXX_SCREENSHOT_FILE_EXTENSION, DXX_SCREENSHOT_TIME_FORMAT_VALUES, savenum);
#undef DXX_SCREENSHOT_TIME_FORMAT_VALUES
#undef DXX_SCREENSHOT_TIME_FORMAT_STRING
#undef DXX_SCREENSHOT_FILE_EXTENSION
}
if (const auto &&[file, physfserr] = PHYSFSX_openWriteBuffered(savename); file)
{
if (!automap_flag)
HUD_init_message(HM_DEFAULT, "%s '%s'", TXT_DUMPING_SCREEN, &savename[sizeof(SCRNS_DIR) - 1]);
#if DXX_USE_OGL
#if !DXX_USE_OGLES
glReadBuffer(GL_FRONT);
#endif
#if DXX_USE_SCREENSHOT_FORMAT_PNG
auto write_error = write_screenshot_png(file, tm, grd_curscreen->sc_canvas.cv_bitmap, void /* unused */);
#elif DXX_USE_SCREENSHOT_FORMAT_LEGACY
write_bmp(file, grd_curscreen->get_screen_width(), grd_curscreen->get_screen_height());
/* write_bmp never fails */
std::false_type write_error;
#endif
#else
grs_canvas &screen_canv = grd_curscreen->sc_canvas;
palette_array_t pal;
const auto &&temp_canv = gr_create_canvas(screen_canv.cv_bitmap.bm_w, screen_canv.cv_bitmap.bm_h);
gr_ubitmap(*temp_canv, screen_canv.cv_bitmap);
gr_palette_read(pal); //get actual palette from the hardware
// Correct palette colors
range_for (auto &i, pal)
{
i.r <<= 2;
i.g <<= 2;
i.b <<= 2;
}
#if DXX_USE_SCREENSHOT_FORMAT_PNG
auto write_error = write_screenshot_png(file, tm, grd_curscreen->sc_canvas.cv_bitmap, pal);
#elif DXX_USE_SCREENSHOT_FORMAT_LEGACY
auto write_error = pcx_write_bitmap(file, &temp_canv->cv_bitmap, pal);
#endif
#endif
if (write_error)
PHYSFS_delete(savename);
}
else
{
const auto e = PHYSFS_getErrorByCode(physfserr);
if (!automap_flag)
HUD_init_message(HM_DEFAULT, "Failed to open screenshot file for writing: %s: %s", &savename[sizeof(SCRNS_DIR) - 1], e);
else
con_printf(CON_URGENT, "Failed to open screenshot file for writing: %s: %s", savename, e);
return;
}
}
#endif
//initialize flying
void fly_init(object_base &obj)
{
obj.control_source = object::control_type::flying;
obj.movement_source = object::movement_type::physics;
obj.mtype.phys_info.velocity = {};
obj.mtype.phys_info.thrust = {};
obj.mtype.phys_info.rotvel = {};
obj.mtype.phys_info.rotthrust = {};
}
}
namespace dsx {
namespace {
// ------------------------------------------------------------------------------------
static void do_cloak_stuff()
{
auto &Objects = LevelUniqueObjectState.Objects;
auto &vmobjptr = Objects.vmptr;
for (auto &&[i, value] : enumerate(partial_range(Players, N_players)))
{
auto &plobj = *vmobjptr(value.objnum);
auto &player_info = plobj.ctype.player_info;
auto &pl_flags = player_info.powerup_flags;
if (pl_flags & PLAYER_FLAGS_CLOAKED)
{
if (GameTime64 > player_info.cloak_time+CLOAK_TIME_MAX)
{
pl_flags &= ~PLAYER_FLAGS_CLOAKED;
if (i == Player_num) {
multi_digi_play_sample(SOUND_CLOAK_OFF, F1_0);
maybe_drop_net_powerup(POW_CLOAK, 1, 0);
if ( Newdemo_state != ND_STATE_PLAYBACK )
multi_send_decloak(); // For demo recording
}
}
}
}
}
// ------------------------------------------------------------------------------------
static void do_invulnerable_stuff(player_info &player_info)
{
auto &pl_flags = player_info.powerup_flags;
if (pl_flags & PLAYER_FLAGS_INVULNERABLE)
{
if (GameTime64 > player_info.invulnerable_time + INVULNERABLE_TIME_MAX)
{
pl_flags &= ~PLAYER_FLAGS_INVULNERABLE;
if (auto &FakingInvul = player_info.FakingInvul)
{
FakingInvul = 0;
return;
}
multi_digi_play_sample(SOUND_INVULNERABILITY_OFF, F1_0);
if (Game_mode & GM_MULTI)
{
maybe_drop_net_powerup(POW_INVULNERABILITY, 1, 0);
}
}
}
}
}
#if defined(DXX_BUILD_DESCENT_I)
static inline void do_afterburner_stuff(object_array &)
{
}
#elif defined(DXX_BUILD_DESCENT_II)
ubyte Last_afterburner_state = 0;
fix64 Time_flash_last_played;
#define AFTERBURNER_LOOP_START ((GameArg.SndDigiSampleRate==SAMPLE_RATE_22K)?32027:(32027/2)) //20098
#define AFTERBURNER_LOOP_END ((GameArg.SndDigiSampleRate==SAMPLE_RATE_22K)?48452:(48452/2)) //25776
namespace {
static fix Last_afterburner_charge;
static void do_afterburner_stuff(object_array &Objects)
{
auto &vmobjptr = Objects.vmptr;
auto &vcobjptridx = Objects.vcptridx;
static sbyte func_play = 0;
auto &player_info = get_local_plrobj().ctype.player_info;
const auto have_afterburner = player_info.powerup_flags & PLAYER_FLAGS_AFTERBURNER;
if (!have_afterburner)
Afterburner_charge = 0;
const auto plobj = vcobjptridx(get_local_player().objnum);
if (Endlevel_sequence || Player_dead_state != player_dead_state::no)
{
digi_kill_sound_linked_to_object(plobj);
if (Game_mode & GM_MULTI && func_play)
{
multi_send_sound_function (0,0);
func_play = 0;
}
}
if ((Controls.state.afterburner != Last_afterburner_state && Last_afterburner_charge) || (Last_afterburner_state && Last_afterburner_charge && !Afterburner_charge)) {
if (Afterburner_charge && Controls.state.afterburner && have_afterburner) {
digi_link_sound_to_object3(SOUND_AFTERBURNER_IGNITE, plobj, 1, F1_0, sound_stack::allow_stacking, vm_distance{i2f(256)}, AFTERBURNER_LOOP_START, AFTERBURNER_LOOP_END);
if (Game_mode & GM_MULTI)
{
multi_send_sound_function (3,SOUND_AFTERBURNER_IGNITE);
func_play = 1;
}
} else {
digi_kill_sound_linked_to_object(plobj);
digi_link_sound_to_object2(SOUND_AFTERBURNER_PLAY, plobj, 0, F1_0, sound_stack::allow_stacking, vm_distance{i2f(256)});
if (Game_mode & GM_MULTI)
{
multi_send_sound_function (0,0);
func_play = 0;
}
}
}
//@@if (Controls.state.afterburner && Afterburner_charge)
//@@ afterburner_shake();
Last_afterburner_state = Controls.state.afterburner;
Last_afterburner_charge = Afterburner_charge;
}
}
#endif
// Amount to diminish guns towards normal, per second.
#define DIMINISH_RATE 16 // gots to be a power of 2, else change the code in diminish_palette_towards_normal
//adds to rgb values for palette flash
void PALETTE_FLASH_ADD(int _dr, int _dg, int _db)
{
int maxval;
PaletteRedAdd += _dr;
PaletteGreenAdd += _dg;
PaletteBlueAdd += _db;
#if defined(DXX_BUILD_DESCENT_II)
if (Flash_effect)
maxval = 60;
else
#endif
maxval = MAX_PALETTE_ADD;
if (PaletteRedAdd > maxval)
PaletteRedAdd = maxval;
if (PaletteGreenAdd > maxval)
PaletteGreenAdd = maxval;
if (PaletteBlueAdd > maxval)
PaletteBlueAdd = maxval;
if (PaletteRedAdd < -maxval)
PaletteRedAdd = -maxval;
if (PaletteGreenAdd < -maxval)
PaletteGreenAdd = -maxval;
if (PaletteBlueAdd < -maxval)
PaletteBlueAdd = -maxval;
}
}
namespace {
static void diminish_palette_color_toward_zero(int& palette_color_add, const int& dec_amount)
{
if (palette_color_add > 0 ) {
if (palette_color_add < dec_amount)
palette_color_add = 0;
else
palette_color_add -= dec_amount;
} else if (palette_color_add < 0 ) {
if (palette_color_add > -dec_amount )
palette_color_add = 0;
else
palette_color_add += dec_amount;
}
}
}
namespace dsx {
namespace {
// ------------------------------------------------------------------------------------
// Diminish palette effects towards normal.
static void diminish_palette_towards_normal(void)
{
int dec_amount = 0;
float brightness_correction = 1-(static_cast<float>(gr_palette_get_gamma())/64); // to compensate for brightness setting of the game
// Diminish at DIMINISH_RATE units/second.
if (FrameTime < (F1_0/DIMINISH_RATE))
{
static fix diminish_timer = 0;
diminish_timer += FrameTime;
if (diminish_timer >= (F1_0/DIMINISH_RATE))
{
diminish_timer -= (F1_0/DIMINISH_RATE);
dec_amount = 1;
}
}
else
{
dec_amount = f2i(FrameTime*DIMINISH_RATE); // one second = DIMINISH_RATE counts
if (dec_amount == 0)
dec_amount++; // make sure we decrement by something
}
#if defined(DXX_BUILD_DESCENT_II)
if (Flash_effect) {
int force_do = 0;
static fix Flash_step_up_timer = 0;
// Part of hack system to force update of palette after exiting a menu.
if (Time_flash_last_played) {
force_do = 1;
PaletteRedAdd ^= 1; // Very Tricky! In gr_palette_step_up, if all stepups same as last time, won't do anything!
}
if (Time_flash_last_played + F1_0/8 < GameTime64) {
digi_play_sample( SOUND_CLOAK_OFF, Flash_effect/4);
Time_flash_last_played = GameTime64;
}
Flash_effect -= FrameTime;
Flash_step_up_timer += FrameTime;
if (Flash_effect < 0)
Flash_effect = 0;
if (force_do || (Flash_step_up_timer >= F1_0/26)) // originally time interval based on (d_rand() > 4096)
{
Flash_step_up_timer -= (F1_0/26);
if ( (Newdemo_state==ND_STATE_RECORDING) && (PaletteRedAdd || PaletteGreenAdd || PaletteBlueAdd) )
newdemo_record_palette_effect(PaletteRedAdd, PaletteGreenAdd, PaletteBlueAdd);
gr_palette_step_up( PaletteRedAdd*brightness_correction, PaletteGreenAdd*brightness_correction, PaletteBlueAdd*brightness_correction );
return;
}
}
#endif
diminish_palette_color_toward_zero(PaletteRedAdd, dec_amount);
diminish_palette_color_toward_zero(PaletteGreenAdd, dec_amount);
diminish_palette_color_toward_zero(PaletteBlueAdd, dec_amount);
if ( (Newdemo_state==ND_STATE_RECORDING) && (PaletteRedAdd || PaletteGreenAdd || PaletteBlueAdd) )
newdemo_record_palette_effect(PaletteRedAdd, PaletteGreenAdd, PaletteBlueAdd);
gr_palette_step_up( PaletteRedAdd*brightness_correction, PaletteGreenAdd*brightness_correction, PaletteBlueAdd*brightness_correction );
}
}
}
namespace {
int Redsave, Bluesave, Greensave;
}
#if defined(DXX_BUILD_DESCENT_II)
static
#endif
void palette_save(void)
{
Redsave = PaletteRedAdd; Bluesave = PaletteBlueAdd; Greensave = PaletteGreenAdd;
}
namespace dsx {
void palette_restore(void)
{
float brightness_correction = 1-(static_cast<float>(gr_palette_get_gamma())/64);
PaletteRedAdd = Redsave; PaletteBlueAdd = Bluesave; PaletteGreenAdd = Greensave;
gr_palette_step_up( PaletteRedAdd*brightness_correction, PaletteGreenAdd*brightness_correction, PaletteBlueAdd*brightness_correction );
#if defined(DXX_BUILD_DESCENT_II)
// Forces flash effect to fixup palette next frame.
Time_flash_last_played = 0;
#endif
}
// --------------------------------------------------------------------------------------------------
bool allowed_to_fire_laser(const player_info &player_info)
{
if (Player_dead_state != player_dead_state::no)
{
Global_missile_firing_count = 0;
return 0;
}
auto &Next_laser_fire_time = player_info.Next_laser_fire_time;
// Make sure enough time has elapsed to fire laser
if (Next_laser_fire_time > GameTime64)
return 0;
return 1;
}
int allowed_to_fire_missile(const player_info &player_info)
{
auto &Next_missile_fire_time = player_info.Next_missile_fire_time;
// Make sure enough time has elapsed to fire missile
if (Next_missile_fire_time > GameTime64)
return 0;
return 1;
}
#if defined(DXX_BUILD_DESCENT_II)
void full_palette_save(void)
{
palette_save();
reset_palette_add();
gr_palette_load( gr_palette );
}
#endif
namespace {
#if DXX_USE_SDLMIXER
#define EXT_MUSIC_TEXT "Jukebox/Audio CD"
#else
#define EXT_MUSIC_TEXT "Audio CD"
#endif
#if (defined(__APPLE__) || defined(macintosh))
#define _DXX_HELP_MENU_SAVE_LOAD(VERB) \
DXX_MENUITEM(VERB, TEXT, "Alt-F2/F3 (\x85-SHIFT-s/o)\t SAVE/LOAD GAME", HELP_AF2_3) \
DXX_MENUITEM(VERB, TEXT, "Alt-Shift-F2/F3 (\x85-s/o)\t Quick Save/Load", HELP_ASF2_3)
#define _DXX_HELP_MENU_PAUSE(VERB) DXX_MENUITEM(VERB, TEXT, "Pause (\x85-P)\t Pause", HELP_PAUSE)
#if DXX_USE_SDL_REDBOOK_AUDIO
#define _DXX_HELP_MENU_AUDIO_REDBOOK(VERB) \
DXX_MENUITEM(VERB, TEXT, "\x85-E\t Eject Audio CD", HELP_ASF9) \
#else
#define _DXX_HELP_MENU_AUDIO_REDBOOK(VERB)
#endif
#define _DXX_HELP_MENU_AUDIO(VERB) \
_DXX_HELP_MENU_AUDIO_REDBOOK(VERB) \
DXX_MENUITEM(VERB, TEXT, "\x85-Up/Down\t Play/Pause " EXT_MUSIC_TEXT, HELP_ASF10) \
DXX_MENUITEM(VERB, TEXT, "\x85-Left/Right\t Previous/Next Song", HELP_ASF11_12)
#define _DXX_HELP_MENU_HINT_CMD_KEY(VERB, PREFIX) \
DXX_MENUITEM(VERB, TEXT, "", PREFIX##_SEP_HINT_CMD) \
DXX_MENUITEM(VERB, TEXT, "(Use \x85-# for F#. e.g. \x85-1 for F1)", PREFIX##_HINT_CMD)
#define _DXX_NETHELP_SAVELOAD_GAME(VERB) \
DXX_MENUITEM(VERB, TEXT, "Alt-F2/F3 (\x85-SHIFT-s/\x85-o)\t SAVE/LOAD COOP GAME", NETHELP_SAVELOAD)
#else
#define _DXX_HELP_MENU_SAVE_LOAD(VERB) \
DXX_MENUITEM(VERB, TEXT, "Alt-F2/F3\t SAVE/LOAD GAME", HELP_AF2_3) \
DXX_MENUITEM(VERB, TEXT, "Alt-Shift-F2/F3\t Fast Save", HELP_ASF2_3)
#define _DXX_HELP_MENU_PAUSE(VERB) DXX_MENUITEM(VERB, TEXT, TXT_HELP_PAUSE, HELP_PAUSE)
#if DXX_USE_SDL_REDBOOK_AUDIO
#define _DXX_HELP_MENU_AUDIO_REDBOOK(VERB) \
DXX_MENUITEM(VERB, TEXT, "Alt-Shift-F9\t Eject Audio CD", HELP_ASF9) \
#else
#define _DXX_HELP_MENU_AUDIO_REDBOOK(VERB)
#endif
#define _DXX_HELP_MENU_AUDIO(VERB) \
_DXX_HELP_MENU_AUDIO_REDBOOK(VERB) \
DXX_MENUITEM(VERB, TEXT, "Alt-Shift-F10\t Play/Pause " EXT_MUSIC_TEXT, HELP_ASF10) \
DXX_MENUITEM(VERB, TEXT, "Alt-Shift-F11/F12\t Previous/Next Song", HELP_ASF11_12)
#define _DXX_HELP_MENU_HINT_CMD_KEY(VERB, PREFIX)
#define _DXX_NETHELP_SAVELOAD_GAME(VERB) \
DXX_MENUITEM(VERB, TEXT, "Alt-F2/F3\t SAVE/LOAD COOP GAME", NETHELP_SAVELOAD)
#endif
#if defined(DXX_BUILD_DESCENT_II)
#define _DXX_HELP_MENU_D2_DXX_F4(VERB) DXX_MENUITEM(VERB, TEXT, TXT_HELP_F4, HELP_F4)
#define _DXX_HELP_MENU_D2_DXX_FEATURES(VERB) \
DXX_MENUITEM(VERB, TEXT, "Shift-F1/F2\t Cycle left/right window", HELP_SF1_2) \
DXX_MENUITEM(VERB, TEXT, "Shift-F4\t GuideBot menu", HELP_SF4) \
DXX_MENUITEM(VERB, TEXT, "Alt-Shift-F4\t Rename GuideBot", HELP_ASF4) \
DXX_MENUITEM(VERB, TEXT, "Shift-F5/F6\t Drop primary/secondary", HELP_SF5_6) \
DXX_MENUITEM(VERB, TEXT, "Shift-number\t GuideBot commands", HELP_GUIDEBOT_COMMANDS)
#define DSX_NETHELP_DROPFLAG(VERB) \
DXX_MENUITEM(VERB, TEXT, "ALT-0\t DROP FLAG", NETHELP_DROPFLAG)
#else
#define _DXX_HELP_MENU_D2_DXX_F4(VERB)
#define _DXX_HELP_MENU_D2_DXX_FEATURES(VERB)
#define DSX_NETHELP_DROPFLAG(VERB)
#endif
#define DXX_HELP_MENU(VERB) \
DXX_MENUITEM(VERB, TEXT, TXT_HELP_ESC, HELP_ESC) \
DXX_MENUITEM(VERB, TEXT, "SHIFT-ESC\t SHOW GAME LOG", HELP_LOG) \
DXX_MENUITEM(VERB, TEXT, "F1\t THIS SCREEN", HELP_HELP) \
DXX_MENUITEM(VERB, TEXT, TXT_HELP_F2, HELP_F2) \
_DXX_HELP_MENU_SAVE_LOAD(VERB) \
DXX_MENUITEM(VERB, TEXT, "F3\t SWITCH COCKPIT MODES", HELP_F3) \
_DXX_HELP_MENU_D2_DXX_F4(VERB) \
DXX_MENUITEM(VERB, TEXT, TXT_HELP_F5, HELP_F5) \
DXX_MENUITEM(VERB, TEXT, "ALT-F7\t SWITCH HUD MODES", HELP_AF7) \
_DXX_HELP_MENU_PAUSE(VERB) \
DXX_MENUITEM(VERB, TEXT, TXT_HELP_PRTSCN, HELP_PRTSCN) \
DXX_MENUITEM(VERB, TEXT, TXT_HELP_1TO5, HELP_1TO5) \
DXX_MENUITEM(VERB, TEXT, TXT_HELP_6TO10, HELP_6TO10) \
_DXX_HELP_MENU_D2_DXX_FEATURES(VERB) \
_DXX_HELP_MENU_AUDIO(VERB) \
_DXX_HELP_MENU_HINT_CMD_KEY(VERB, HELP) \
}
void show_help()
{
struct help_menu_items
{
enum {
DXX_HELP_MENU(ENUM)
};
std::array<newmenu_item, DXX_HELP_MENU(COUNT)> m;
help_menu_items()
{
DXX_HELP_MENU(ADD);
}
};
struct help_menu : help_menu_items, passive_newmenu
{
help_menu(grs_canvas &src) :
passive_newmenu(menu_title{nullptr}, menu_subtitle{TXT_KEYS}, menu_filename{nullptr}, tiny_mode_flag::tiny, tab_processing_flag::ignore, adjusted_citem::create(m, 0), src)
{
}
};
auto menu = window_create<help_menu>(grd_curscreen->sc_canvas);
(void)menu;
}
#undef DXX_HELP_MENU
#define DSX_NETHELP_MENU(VERB) \
DXX_MENUITEM(VERB, TEXT, "F1\t THIS SCREEN", NETHELP_HELP) \
DSX_NETHELP_DROPFLAG(VERB) \
_DXX_NETHELP_SAVELOAD_GAME(VERB) \
DXX_MENUITEM(VERB, TEXT, "ALT-F4\t SHOW PLAYER NAMES ON HUD", NETHELP_HUDNAMES) \
DXX_MENUITEM(VERB, TEXT, "F7\t TOGGLE KILL LIST", NETHELP_TOGGLE_KILL_LIST) \
DXX_MENUITEM(VERB, TEXT, "F8\t SEND MESSAGE", NETHELP_SENDMSG) \
DXX_MENUITEM(VERB, TEXT, "(SHIFT-)F9 to F12\t (DEFINE)SEND MACRO", NETHELP_MACRO) \
DXX_MENUITEM(VERB, TEXT, "PAUSE\t SHOW NETGAME INFORMATION", NETHELP_GAME_INFO) \
DXX_MENUITEM(VERB, TEXT, "SHIFT-PAUSE\t SHOW NETGAME INFO & RULES", NETHELP_GAME_INFORULES) \
_DXX_HELP_MENU_HINT_CMD_KEY(VERB, NETHELP) \
DXX_MENUITEM(VERB, TEXT, "", NETHELP_SEP1) \
DXX_MENUITEM(VERB, TEXT, "MULTIPLAYER MESSAGE COMMANDS:", NETHELP_COMMAND_HEADER) \
DXX_MENUITEM(VERB, TEXT, "(*): TEXT\t SEND TEXT TO PLAYER/TEAM (*)", NETHELP_DIRECT_MESSAGE) \
DXX_MENUITEM(VERB, TEXT, "/Handicap: (*)\t SET YOUR STARTING SHIELDS TO (*) [10-100]", NETHELP_COMMAND_HANDICAP) \
DXX_MENUITEM(VERB, TEXT, "/move: (*)\t MOVE PLAYER (*) TO OTHER TEAM (Host-only)", NETHELP_COMMAND_MOVE) \
DXX_MENUITEM(VERB, TEXT, "/kick: (*)\t KICK PLAYER (*) FROM GAME (Host-only)", NETHELP_COMMAND_KICK) \
DXX_MENUITEM(VERB, TEXT, "/KillReactor\t BLOW UP THE MINE (Host-only)", NETHELP_COMMAND_KILL_REACTOR) \
enum {
DSX_NETHELP_MENU(ENUM)
};
void show_netgame_help()
{
struct help_menu_items
{
enum {
DSX_NETHELP_MENU(ENUM)
};
std::array<newmenu_item, DSX_NETHELP_MENU(COUNT)> m;
help_menu_items()
{
DSX_NETHELP_MENU(ADD);
}
};
struct help_menu : help_menu_items, passive_newmenu
{
help_menu(grs_canvas &src) :
passive_newmenu(menu_title{nullptr}, menu_subtitle{TXT_KEYS}, menu_filename{nullptr}, tiny_mode_flag::tiny, tab_processing_flag::ignore, adjusted_citem::create(m, 0), src)
{
}
};
auto menu = window_create<help_menu>(grd_curscreen->sc_canvas);
(void)menu;
}
#undef DSX_NETHELP_MENU
#define DXX_NEWDEMO_HELP_MENU(VERB) \
DXX_MENUITEM(VERB, TEXT, "ESC\t QUIT DEMO PLAYBACK", DEMOHELP_QUIT) \
DXX_MENUITEM(VERB, TEXT, "F1\t THIS SCREEN", DEMOHELP_HELP) \
DXX_MENUITEM(VERB, TEXT, TXT_HELP_F2, DEMOHELP_F2) \
DXX_MENUITEM(VERB, TEXT, "F3\t SWITCH COCKPIT MODES", DEMOHELP_F3) \
DXX_MENUITEM(VERB, TEXT, "F4\t TOGGLE PERCENTAGE DISPLAY", DEMOHELP_F4) \
DXX_MENUITEM(VERB, TEXT, "UP\t PLAY", DEMOHELP_PLAY) \
DXX_MENUITEM(VERB, TEXT, "DOWN\t PAUSE", DEMOHELP_PAUSE) \
DXX_MENUITEM(VERB, TEXT, "RIGHT\t ONE FRAME FORWARD", DEMOHELP_FRAME_FORWARD) \
DXX_MENUITEM(VERB, TEXT, "LEFT\t ONE FRAME BACKWARD", DEMOHELP_FRAME_BACKWARD) \
DXX_MENUITEM(VERB, TEXT, "SHIFT-RIGHT\t FAST FORWARD", DEMOHELP_FAST_FORWARD) \
DXX_MENUITEM(VERB, TEXT, "SHIFT-LEFT\t FAST BACKWARD", DEMOHELP_FAST_BACKWARD) \
DXX_MENUITEM(VERB, TEXT, "CTRL-RIGHT\t JUMP TO END", DEMOHELP_JUMP_END) \
DXX_MENUITEM(VERB, TEXT, "CTRL-LEFT\t JUMP TO START", DEMOHELP_JUMP_START) \
_DXX_HELP_MENU_HINT_CMD_KEY(VERB, DEMOHELP) \
enum {
DXX_NEWDEMO_HELP_MENU(ENUM)
};
void show_newdemo_help()
{
struct help_menu_items
{
enum {
DXX_NEWDEMO_HELP_MENU(ENUM)
};
std::array<newmenu_item, DXX_NEWDEMO_HELP_MENU(COUNT)> m;
help_menu_items()
{
DXX_NEWDEMO_HELP_MENU(ADD);
}
};
struct help_menu : help_menu_items, passive_newmenu
{
help_menu(grs_canvas &src) :
passive_newmenu(menu_title{nullptr}, menu_subtitle{"DEMO PLAYBACK CONTROLS"}, menu_filename{nullptr}, tiny_mode_flag::tiny, tab_processing_flag::ignore, adjusted_citem::create(m, 0), src)
{
}
};
auto menu = window_create<help_menu>(grd_curscreen->sc_canvas);
(void)menu;
}
}
namespace {
#undef DXX_NEWDEMO_HELP_MENU
#define LEAVE_TIME 0x4000 //how long until we decide key is down (Used to be 0x4000)
enum class leave_type : uint_fast8_t
{
none,
maybe_on_release,
wait_for_release,
on_press,
};
static leave_type leave_mode;
static void end_rear_view()
{
Rear_view = 0;
if (PlayerCfg.CockpitMode[1] == cockpit_mode_t::rear_view)
select_cockpit(PlayerCfg.CockpitMode[0]);
if (Newdemo_state == ND_STATE_RECORDING)
newdemo_record_restore_rearview();
}
static void check_end_rear_view()
{
leave_mode = leave_type::none;
if (Rear_view)
end_rear_view();
}
}
namespace dsx {
//deal with rear view - switch it on, or off, or whatever
void check_rear_view(control_info &Controls)
{
static fix64 entry_time;
if (Newdemo_state == ND_STATE_PLAYBACK)
return;
const auto rear_view = Controls.state.rear_view;
switch (leave_mode)
{
case leave_type::none:
if (!rear_view)
return;
if (Rear_view)
end_rear_view();
else
{
Rear_view = 1;
leave_mode = leave_type::maybe_on_release; //means wait for another key
entry_time = timer_query();
if (PlayerCfg.CockpitMode[1] == cockpit_mode_t::full_cockpit)
select_cockpit(cockpit_mode_t::rear_view);
if (Newdemo_state == ND_STATE_RECORDING)
newdemo_record_rearview();
}
return;
case leave_type::maybe_on_release:
if (rear_view)
{
if (timer_query() - entry_time > LEAVE_TIME)
leave_mode = leave_type::wait_for_release;
}
else
leave_mode = leave_type::on_press;
return;
case leave_type::wait_for_release:
if (!rear_view)
check_end_rear_view();
return;
case leave_type::on_press:
if (rear_view)
{
Controls.state.rear_view = 0;
check_end_rear_view();
}
return;
default:
break;
}
}
}
void reset_rear_view(void)
{
if (Rear_view) {
if (Newdemo_state == ND_STATE_RECORDING)
newdemo_record_restore_rearview();
}
Rear_view = 0;
select_cockpit(PlayerCfg.CockpitMode[0]);
}
int cheats_enabled()
{
return cheats.enabled;
}
//turns off all cheats & resets cheater flag
void game_disable_cheats()
{
#if defined(DXX_BUILD_DESCENT_II)
if (cheats.homingfire)
weapons_homing_all_reset();
#endif
cheats = {};
}
// game_setup()
// ----------------------------------------------------------------------------
namespace dsx {
game_window *game_setup()
{
PlayerCfg.CockpitMode[1] = PlayerCfg.CockpitMode[0];
last_drawn_cockpit = cockpit_mode_t{UINT8_MAX}; // Force cockpit to redraw next time a frame renders.
Endlevel_sequence = 0;
auto game_wind = window_create<game_window>(grd_curscreen->sc_canvas, 0, 0, SWIDTH, SHEIGHT);
reset_palette_add();
init_stereo();
init_cockpit();
init_gauges();
netplayerinfo_on = 0;
#if DXX_USE_EDITOR
if (!Cursegp)
{
Cursegp = imsegptridx(segment_first);
Curside = sidenum_t::WLEFT;
}
#endif
Viewer = ConsoleObject;
fly_init(*ConsoleObject);
Game_suspended = 0;
reset_time();
FrameTime = 0; //make first frame zero
fix_object_segs();
if (CGameArg.SysAutoRecordDemo && Newdemo_state == ND_STATE_NORMAL)
newdemo_start_recording();
return game_wind;
}
// Event handler for the game
window_event_result game_window::event_handler(const d_event &event)
{
auto result = window_event_result::ignored;
switch (event.type)
{
case EVENT_WINDOW_ACTIVATED:
set_screen_mode(SCREEN_GAME);
event_toggle_focus(1);
key_toggle_repeat(0);
game_flush_inputs(Controls);
if (time_paused)
start_time();
if (!((Game_mode & GM_MULTI) && (Newdemo_state != ND_STATE_PLAYBACK)))
digi_resume_digi_sounds();
if (!((Game_mode & GM_MULTI) && (Newdemo_state != ND_STATE_PLAYBACK)))
palette_restore();
reset_cockpit();
break;
case EVENT_WINDOW_DEACTIVATED:
if (!(((Game_mode & GM_MULTI) && (Newdemo_state != ND_STATE_PLAYBACK)) && (!Endlevel_sequence)) )
stop_time();
if (!((Game_mode & GM_MULTI) && (Newdemo_state != ND_STATE_PLAYBACK)))
digi_pause_digi_sounds();
if (!((Game_mode & GM_MULTI) && (Newdemo_state != ND_STATE_PLAYBACK)))
full_palette_save();
event_toggle_focus(0);
key_toggle_repeat(1);
break;
#if DXX_MAX_BUTTONS_PER_JOYSTICK
case EVENT_JOYSTICK_BUTTON_UP:
case EVENT_JOYSTICK_BUTTON_DOWN:
#endif
#if DXX_MAX_AXES_PER_JOYSTICK
case EVENT_JOYSTICK_MOVED:
#endif
case EVENT_MOUSE_BUTTON_UP:
case EVENT_MOUSE_BUTTON_DOWN:
case EVENT_MOUSE_MOVED:
case EVENT_KEY_COMMAND:
case EVENT_KEY_RELEASE:
case EVENT_IDLE:
return ReadControls(LevelSharedRobotInfoState, event, Controls);
case EVENT_WINDOW_DRAW:
if (!time_paused)
{
calc_frame_time();
result = GameProcessFrame(LevelSharedRobotInfoState);
}
if (!Automap_active) // efficiency hack
{
if (force_cockpit_redraw) { //screen need redrawing?
init_cockpit();
force_cockpit_redraw=0;
}
game_render_frame(LevelSharedRobotInfoState.Robot_info, Controls);
}
break;
case EVENT_WINDOW_CLOSE:
digi_stop_digi_sounds();
if ( (Newdemo_state == ND_STATE_RECORDING) || (Newdemo_state == ND_STATE_PAUSED) )
newdemo_stop_recording();
multi_leave_game();
if ( Newdemo_state == ND_STATE_PLAYBACK )
newdemo_stop_playback();
songs_play_song( SONG_TITLE, 1 );
game_disable_cheats();
Game_mode = {};
#if DXX_USE_EDITOR
if (!EditorWindow) // have to do it this way because of the necessary longjmp. Yuck.
#endif
show_menus();
event_toggle_focus(0);
key_toggle_repeat(1);
Game_wind = nullptr;
return window_event_result::ignored;
case EVENT_LOOP_BEGIN_LOOP:
kconfig_begin_loop(Controls);
break;
case EVENT_LOOP_END_LOOP:
kconfig_end_loop(Controls, FrameTime);
break;
default:
break;
}
return result;
}
// Initialise game, actually runs in main event loop
void game()
{
hide_menus();
Game_wind = game_setup();
}
}
//called at the end of the program
void close_game()
{
close_gauges();
restore_effect_bitmap_icons();
}
#if defined(DXX_BUILD_DESCENT_II)
namespace dsx {
object *Missile_viewer=NULL;
object_signature_t Missile_viewer_sig;
enumerated_array<game_marker_index, 2, gauge_inset_window_view> Marker_viewer_num{
{{
game_marker_index::None,
game_marker_index::None,
}}
};
enumerated_array<unsigned, 2, gauge_inset_window_view> Coop_view_player{
{{
UINT_MAX,
UINT_MAX
}}
};
//returns ptr to escort robot, or NULL
imobjptridx_t find_escort(fvmobjptridx &vmobjptridx, const d_robot_info_array &Robot_info)
{
range_for (const auto &&o, vmobjptridx)
{
if (o->type == OBJ_ROBOT && Robot_info[get_robot_id(o)].companion)
return imobjptridx_t(o);
}
return object_none;
}
namespace {
//if water or fire level, make occasional sound
static void do_ambient_sounds(const uint8_t s2_flags)
{
const auto has_water = (s2_flags & S2F_AMBIENT_WATER);
sound_effect sound;
if (s2_flags & S2F_AMBIENT_LAVA)
{ //has lava
sound = SOUND_AMBIENT_LAVA;
if (has_water && (d_rand() & 1)) //both, pick one
sound = SOUND_AMBIENT_WATER;
}
else if (has_water) //just water
sound = SOUND_AMBIENT_WATER;
else
return;
if (((d_rand() << 3) < FrameTime)) { //play the sound
fix volume = d_rand() + f1_0/2;
digi_play_sample(sound,volume);
}
}
}
}
#endif
void game_leave_menus(void)
{
if (!Game_wind)
return;
for (;;) // go through all windows and actually close them if they want to
{
const auto wind = window_get_front();
if (!wind)
break;
if (wind == Game_wind)
break;
if (!window_close(wind))
break;
}
}
namespace dsx {
namespace {
window_event_result GameProcessFrame(const d_level_shared_robot_info_state &LevelSharedRobotInfoState)
{
auto &LevelUniqueControlCenterState = LevelUniqueObjectState.ControlCenterState;
auto &Objects = LevelUniqueObjectState.Objects;
auto &vmobjptr = Objects.vmptr;
auto &plrobj = get_local_plrobj();
auto &player_info = plrobj.ctype.player_info;
auto &local_player_shields_ref = plrobj.shields;
fix player_shields = local_player_shields_ref;
const auto player_was_dead = Player_dead_state;
auto result = window_event_result::ignored;
state_poll_autosave_game(GameUniqueState, LevelUniqueObjectState);
update_player_stats();
diminish_palette_towards_normal(); // Should leave palette effect up for as long as possible by putting right before render.
do_afterburner_stuff(Objects);
do_cloak_stuff();
do_invulnerable_stuff(player_info);
#if defined(DXX_BUILD_DESCENT_II)
init_ai_frame(player_info.powerup_flags, Controls);
result = do_final_boss_frame();
auto &pl_flags = player_info.powerup_flags;
if (pl_flags & PLAYER_FLAGS_HEADLIGHT_ON)
{
static int turned_off=0;
auto &energy = player_info.energy;
energy -= (FrameTime*3/8);
if (energy < i2f(10)) {
if (!turned_off) {
pl_flags &= ~PLAYER_FLAGS_HEADLIGHT_ON;
turned_off = 1;
if (Game_mode & GM_MULTI)
multi_send_flags(Player_num);
}
}
else
turned_off = 0;
if (energy <= 0)
{
energy = 0;
pl_flags &= ~PLAYER_FLAGS_HEADLIGHT_ON;
if (Game_mode & GM_MULTI)
multi_send_flags(Player_num);
}
}
#endif
#if DXX_USE_EDITOR
check_create_player_path();
player_follow_path(vmobjptr(ConsoleObject));
#endif
if (Game_mode & GM_MULTI)
{
result = std::max(multi_do_frame(), result);
if (Netgame.PlayTimeAllowed.count())
{
if (ThisLevelTime >= Netgame.PlayTimeAllowed)
multi_check_for_killgoal_winner(LevelSharedRobotInfoState.Robot_info);
ThisLevelTime += d_time_fix(FrameTime);
}
}
result = std::max(dead_player_frame(LevelSharedRobotInfoState.Robot_info), result);
if (Newdemo_state != ND_STATE_PLAYBACK)
result = std::max(do_controlcen_dead_frame(), result);
if (result == window_event_result::close)
return result; // skip everything else - don't set Player_dead_state again
#if defined(DXX_BUILD_DESCENT_II)
process_super_mines_frame();
do_seismic_stuff();
do_ambient_sounds(vcsegptr(ConsoleObject->segnum)->s2_flags);
#endif
digi_sync_sounds();
if (Endlevel_sequence) {
result = std::max(do_endlevel_frame(LevelSharedRobotInfoState), result);
powerup_grab_cheat_all();
do_special_effects();
return result; //skip everything else
}
if ((Newdemo_state != ND_STATE_PLAYBACK) || (Newdemo_vcr_state != ND_STATE_PAUSED)) {
do_special_effects();
wall_frame_process(LevelSharedRobotInfoState.Robot_info);
}
if (LevelUniqueControlCenterState.Control_center_destroyed)
{
if (Newdemo_state==ND_STATE_RECORDING )
newdemo_record_control_center_destroyed();
}
flash_frame();
if ( Newdemo_state == ND_STATE_PLAYBACK )
{
result = std::max(newdemo_playback_one_frame(), result);
if ( Newdemo_state != ND_STATE_PLAYBACK )
{
Assert(result == window_event_result::close);
return window_event_result::close; // Go back to menu
}
}
else
{ // Note the link to above!
#ifndef NEWHOMER
player_info.homing_object_dist = -1; // Assume not being tracked. Laser_do_weapon_sequence modifies this.
#endif
result = std::max(game_move_all_objects(LevelSharedRobotInfoState), result);
powerup_grab_cheat_all();
if (Endlevel_sequence) //might have been started during move
return result;
fuelcen_update_all(LevelSharedRobotInfoState.Robot_info);
do_ai_frame_all(LevelSharedRobotInfoState.Robot_info);
auto laser_firing_count = FireLaser(player_info, Controls);
if (auto &Auto_fire_fusion_cannon_time = player_info.Auto_fire_fusion_cannon_time)
{
if (player_info.Primary_weapon != primary_weapon_index_t::FUSION_INDEX)
Auto_fire_fusion_cannon_time = 0;
else if ((laser_firing_count = (GameTime64 + FrameTime/2 >= Auto_fire_fusion_cannon_time)))
{
Auto_fire_fusion_cannon_time = 0;
} else if (d_tick_step) {
const auto rx = (d_rand() - 16384) / 8;
const auto rz = (d_rand() - 16384) / 8;
const auto &&console = vmobjptr(ConsoleObject);
auto &rotvel = console->mtype.phys_info.rotvel;
rotvel.x += rx;
rotvel.z += rz;
const auto bump_amount = player_info.Fusion_charge > F1_0*2 ? player_info.Fusion_charge * 4 : F1_0 * 4;
bump_one_object(console, make_random_vector(), bump_amount);
}
}
if (laser_firing_count)
do_laser_firing_player(plrobj);
delayed_autoselect(player_info, Controls);
}
if (Do_appearance_effect) {
Do_appearance_effect = 0;
create_player_appearance_effect(Vclip, *ConsoleObject);
}
#if defined(DXX_BUILD_DESCENT_II)
omega_charge_frame(player_info);
slide_textures();
auto &LevelSharedDestructibleLightState = LevelSharedSegmentState.DestructibleLights;
flicker_lights(LevelSharedDestructibleLightState, Flickering_light_state, vmsegptridx);
//if the player is taking damage, give up guided missile control
if (local_player_shields_ref != player_shields)
{
const auto player_num = Player_num;
if (const auto &&gimobj = LevelUniqueObjectState.Guided_missile.get_player_active_guided_missile(vmobjptr, player_num))
release_local_guided_missile(LevelUniqueObjectState, player_num, *gimobj);
}
#endif
// Check if we have to close in-game menus for multiplayer
if ((Game_mode & GM_MULTI) && get_local_player().connected == player_connection_status::playing)
{
if (Endlevel_sequence || Player_dead_state != player_was_dead || local_player_shields_ref < player_shields || (LevelUniqueControlCenterState.Control_center_destroyed && LevelUniqueControlCenterState.Countdown_seconds_left < 10))
game_leave_menus();
}
return result;
}
}
#if defined(DXX_BUILD_DESCENT_II)
void compute_slide_segs()
{
auto &TmapInfo = LevelUniqueTmapInfoState.TmapInfo;
for (const csmusegment suseg : vmsegptr)
{
sidemask_t slide_textures{};
for (const auto sidenum : MAX_SIDES_PER_SEGMENT)
{
const auto &uside = suseg.u.sides[sidenum];
const auto &ti = TmapInfo[get_texture_index(uside.tmap_num)];
if (!(ti.slide_u || ti.slide_v))
continue;
const auto &sside = suseg.s.sides[sidenum];
if (IS_CHILD(suseg.s.children[sidenum]) && sside.wall_num == wall_none)
/* If a wall exists, it could be visible at start or
* become visible later, so always enable sliding for
* walls.
*/
continue;
slide_textures |= build_sidemask(sidenum);
}
suseg.u.slide_textures = slide_textures;
}
}
namespace {
template <fix uvl::*p>
static void update_uv(std::array<uvl, 4> &uvls, uvl &i, fix a)
{
if (!a)
return;
const auto ip = (i.*p += a);
if (ip > f2_0)
range_for (auto &j, uvls)
j.*p -= f1_0;
else if (ip < -f2_0)
range_for (auto &j, uvls)
j.*p += f1_0;
}
// -----------------------------------------------------------------------------
static void slide_textures(void)
{
auto &TmapInfo = LevelUniqueTmapInfoState.TmapInfo;
for (unique_segment &useg : vmsegptr)
{
if (const auto slide_seg = useg.slide_textures; slide_seg != sidemask_t{})
{
for (const auto sidenum : MAX_SIDES_PER_SEGMENT)
{
if (slide_seg & build_sidemask(sidenum))
{
auto &side = useg.sides[sidenum];
const auto &ti = TmapInfo[get_texture_index(side.tmap_num)];
const auto tiu = ti.slide_u;
const auto tiv = ti.slide_v;
if (tiu || tiv)
{
const auto frametime = FrameTime;
const auto ua = fixmul(frametime, tiu << 8);
const auto va = fixmul(frametime, tiv << 8);
auto &uvls = side.uvls;
range_for (auto &i, uvls)
{
update_uv<&uvl::u>(uvls, i, ua);
update_uv<&uvl::v>(uvls, i, va);
}
}
}
}
}
}
}
constexpr std::integral_constant<fix, INT32_MIN> flicker_timer_disabled{};
static void flicker_lights(const d_level_shared_destructible_light_state &LevelSharedDestructibleLightState, d_flickering_light_state &fls, fvmsegptridx &vmsegptridx)
{
auto &TmapInfo = LevelUniqueTmapInfoState.TmapInfo;
auto &Walls = LevelUniqueWallSubsystemState.Walls;
auto &vcwallptr = Walls.vcptr;
range_for (auto &f, partial_range(fls.Flickering_lights, fls.Num_flickering_lights))
{
if (f.timer == flicker_timer_disabled) //disabled
continue;
const auto &&segp = vmsegptridx(f.segnum);
const auto sidenum = f.sidenum;
{
auto &side = segp->unique_segment::sides[sidenum];
if (!(TmapInfo[get_texture_index(side.tmap_num)].lighting || TmapInfo[get_texture_index(side.tmap_num2)].lighting))
continue;
}
//make sure this is actually a light
if (! (WALL_IS_DOORWAY(GameBitmaps, Textures, vcwallptr, segp, sidenum) & WALL_IS_DOORWAY_FLAG::render))
continue;
if ((f.timer -= FrameTime) < 0)
{
while (f.timer < 0)
f.timer += f.delay;
f.mask = ((f.mask & 0x80000000) ? 1 : 0) + (f.mask << 1);
if (f.mask & 1)
add_light(LevelSharedDestructibleLightState, segp, sidenum);
else
subtract_light(LevelSharedDestructibleLightState, segp, sidenum);
}
}
}
//returns ptr to flickering light structure, or NULL if can't find
static std::pair<d_flickering_light_state::Flickering_light_array_t::iterator, d_flickering_light_state::Flickering_light_array_t::iterator> find_flicker(d_flickering_light_state &fls, const vmsegidx_t segnum, const sidenum_t sidenum)
{
//see if there's already an entry for this seg/side
const auto &&pr = partial_range(fls.Flickering_lights, fls.Num_flickering_lights);
const auto &&predicate = [segnum, sidenum](const flickering_light &f) {
return f.segnum == segnum && f.sidenum == sidenum; //found it!
};
const auto &&pe = pr.end();
return {std::find_if(pr.begin(), pe, predicate), pe};
}
static void update_flicker(d_flickering_light_state &fls, const vmsegidx_t segnum, const sidenum_t sidenum, const fix timer)
{
const auto &&i = find_flicker(fls, segnum, sidenum);
if (i.first != i.second)
i.first->timer = timer;
}
}
//turn flickering off (because light has been turned off)
void disable_flicker(d_flickering_light_state &fls, const vmsegidx_t segnum, const sidenum_t sidenum)
{
update_flicker(fls, segnum, sidenum, flicker_timer_disabled);
}
//turn flickering off (because light has been turned on)
void enable_flicker(d_flickering_light_state &fls, const vmsegidx_t segnum, const sidenum_t sidenum)
{
update_flicker(fls, segnum, sidenum, 0);
}
#endif
namespace {
// -----------------------------------------------------------------------------
// Fire Laser: Registers a laser fire, and performs special stuff for the fusion
// cannon.
bool FireLaser(player_info &player_info, const control_info &Controls)
{
auto &Objects = LevelUniqueObjectState.Objects;
auto &vmobjptr = Objects.vmptr;
auto &vmobjptridx = Objects.vmptridx;
if (!Controls.state.fire_primary)
return false;
if (!allowed_to_fire_laser(player_info))
return false;
auto &Primary_weapon = player_info.Primary_weapon;
if (!Weapon_info[Primary_weapon_to_weapon_info[Primary_weapon]].fire_count)
/* Retail data sets fire_count=1 for all primary weapons */
return false;
if (Primary_weapon == primary_weapon_index_t::FUSION_INDEX)
{
auto &energy = player_info.energy;
auto &Auto_fire_fusion_cannon_time = player_info.Auto_fire_fusion_cannon_time;
if (energy < F1_0 * 2 && Auto_fire_fusion_cannon_time == 0)
{
return false;
} else {
static fix64 Fusion_next_sound_time = 0;
if (player_info.Fusion_charge == 0)
energy -= F1_0*2;
const auto Fusion_charge = (player_info.Fusion_charge += FrameTime);
energy -= FrameTime;
if (energy <= 0)
{
energy = 0;
Auto_fire_fusion_cannon_time = GameTime64 -1; // Fire now!
} else
Auto_fire_fusion_cannon_time = GameTime64 + FrameTime/2 + 1; // Fire the fusion cannon at this time in the future.
{
int dg, db;
const int dr = Fusion_charge >> 11;
if (Fusion_charge < F1_0*2)
dg = 0, db = dr;
else
dg = dr, db = 0;
PALETTE_FLASH_ADD(dr, dg, db);
}
if (Fusion_next_sound_time > GameTime64 + F1_0/8 + D_RAND_MAX/4) // GameTime64 is smaller than max delay - player in new level?
Fusion_next_sound_time = GameTime64 - 1;
if (Fusion_next_sound_time < GameTime64) {
if (Fusion_charge > F1_0*2) {
digi_play_sample( 11, F1_0 );
#if defined(DXX_BUILD_DESCENT_I)
if(Game_mode & GM_MULTI)
multi_send_play_sound(11, F1_0, sound_stack::allow_stacking);
#endif
const auto cobjp = vmobjptridx(ConsoleObject);
apply_damage_to_player(cobjp, cobjp, d_rand() * 4, apply_damage_player::always);
} else {
create_awareness_event(vmobjptr(ConsoleObject), player_awareness_type_t::PA_WEAPON_ROBOT_COLLISION, LevelUniqueRobotAwarenessState);
multi_digi_play_sample(SOUND_FUSION_WARMUP, F1_0);
}
Fusion_next_sound_time = GameTime64 + F1_0/8 + d_rand()/4;
}
}
}
return true;
}
// -------------------------------------------------------------------------------------------------------
// If player is close enough to objnum, which ought to be a powerup, pick it up!
// This could easily be made difficulty level dependent.
static void powerup_grab_cheat(object &player, const vmobjptridx_t powerup)
{
fix powerup_size;
fix player_size;
Assert(powerup->type == OBJ_POWERUP);
powerup_size = powerup->size;
player_size = player.size;
const auto dist = vm_vec_dist_quick(powerup->pos, player.pos);
if ((dist < 2*(powerup_size + player_size)) && !(powerup->flags & OF_SHOULD_BE_DEAD)) {
collide_live_local_player_and_powerup(powerup);
}
}
// -------------------------------------------------------------------------------------------------------
// Make it easier to pick up powerups.
// For all powerups in this segment, pick them up at up to twice pickuppable distance based on dot product
// from player to powerup and player's forward vector.
// This has the effect of picking them up more easily left/right and up/down, but not making them disappear
// way before the player gets there.
void powerup_grab_cheat_all(void)
{
auto &Objects = LevelUniqueObjectState.Objects;
auto &vmobjptr = Objects.vmptr;
auto &vmobjptridx = Objects.vmptridx;
if (Endlevel_sequence)
return;
if (Player_dead_state != player_dead_state::no)
return;
const auto &&console = vmobjptr(ConsoleObject);
range_for (const auto objnum, objects_in(vmsegptr(console->segnum), vmobjptridx, vmsegptr))
if (objnum->type == OBJ_POWERUP)
powerup_grab_cheat(console, objnum);
}
}
}
#ifdef SHOW_EXIT_PATH
namespace dsx {
namespace {
// ------------------------------------------------------------------------------------------------------------------
// Create path for player from current segment to goal segment.
// Return true if path created, else return false.
static int mark_player_path_to_segment(const d_vclip_array &Vclip, fvmobjptridx &vmobjptridx, fvmsegptridx &vmsegptridx, segnum_t segnum)
{
int player_hide_index=-1;
if (LevelUniqueObjectState.Level_path_created)
return 0;
LevelUniqueObjectState.Level_path_created = 1;
auto objp = vmobjptridx(ConsoleObject);
const auto &&cr = create_path_points(objp, create_path_unused_robot_info, objp->segnum, segnum, Point_segs_free_ptr, 100, create_path_random_flag::nonrandom, create_path_safety_flag::unsafe, segment_none);
const unsigned player_path_length = cr.second;
if (cr.first == create_path_result::early)
return 0;
player_hide_index = Point_segs_free_ptr - Point_segs;
Point_segs_free_ptr += player_path_length;
if (Point_segs_free_ptr - Point_segs + MAX_PATH_LENGTH*2 > MAX_POINT_SEGS) {
ai_reset_all_paths();
return 0;
}
for (int i=1; i<player_path_length; i++) {
vms_vector seg_center;
seg_center = Point_segs[player_hide_index+i].point;
const auto &&obj = obj_create(LevelUniqueObjectState, LevelSharedSegmentState, LevelUniqueSegmentState, OBJ_POWERUP, POW_ENERGY, vmsegptridx(Point_segs[player_hide_index+i].segnum), seg_center, &vmd_identity_matrix, Powerup_info[POW_ENERGY].size, object::control_type::powerup, object::movement_type::None, RT_POWERUP);
if (obj == object_none) {
Int3(); // Unable to drop energy powerup for path
return 1;
}
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;
obj->lifeleft = F1_0*100 + d_rand() * 4;
}
return 1;
}
}
// Return true if it happened, else return false.
int create_special_path(void)
{
auto &Objects = LevelUniqueObjectState.Objects;
auto &vmobjptridx = Objects.vmptridx;
// ---------- Find exit doors ----------
range_for (const auto &&segp, vcsegptridx)
{
for (const auto child_segnum : segp->shared_segment::children)
if (child_segnum == segment_exit)
{
return mark_player_path_to_segment(Vclip, vmobjptridx, vmsegptridx, segp);
}
}
return 0;
}
}
#endif
#if defined(DXX_BUILD_DESCENT_II)
namespace dsx {
/*
* reads a flickering_light structure from a PHYSFS_File
*/
void flickering_light_read(flickering_light &fl, PHYSFS_File *fp)
{
{
const auto s = segnum_t{static_cast<uint16_t>(PHYSFSX_readShort(fp))};
fl.segnum = vmsegidx_t::check_nothrow_index(s) ? s : segment_none;
}
const auto sidenum = build_sidenum_from_untrusted(PHYSFSX_readShort(fp));
fl.mask = PHYSFSX_readInt(fp);
fl.timer = PHYSFSX_readFix(fp);
fl.delay = PHYSFSX_readFix(fp);
if (!sidenum)
{
fl = {};
return;
}
fl.sidenum = sidenum.value();
}
void flickering_light_write(const flickering_light &fl, PHYSFS_File *fp)
{
PHYSFS_writeSLE16(fp, fl.segnum);
PHYSFS_writeSLE16(fp, underlying_value(fl.sidenum));
PHYSFS_writeULE32(fp, fl.mask);
PHYSFSX_writeFix(fp, fl.timer);
PHYSFSX_writeFix(fp, fl.delay);
}
}
#endif
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