2 #include "system/stacktrace.h"
6 #include "ebisp/builtins.h"
7 #include "ebisp/interpreter.h"
8 #include "game/camera.h"
9 #include "game/level.h"
10 #include "game/level/background.h"
11 #include "game/level/boxes.h"
12 #include "game/level/goals.h"
13 #include "game/level/labels.h"
14 #include "game/level/lava.h"
15 #include "game/level/platforms.h"
16 #include "game/level/player.h"
17 #include "game/level/regions.h"
18 #include "game/level/rigid_bodies.h"
19 #include "system/line_stream.h"
20 #include "system/lt.h"
21 #include "system/lt/lt_adapters.h"
22 #include "system/nth_alloc.h"
24 #define LEVEL_LINE_MAX_LENGTH 512
25 #define LEVEL_GRAVITY 1500.0f
31 Background *background;
32 RigidBodies *rigid_bodies;
37 Platforms *back_platforms;
43 Vec flying_camera_position;
44 float flying_camera_scale;
47 Level *create_level_from_file(const char *file_name, Broadcast *broadcast)
49 trace_assert(file_name);
51 Lt *const lt = create_lt();
56 Level *const level = PUSH_LT(lt, nth_alloc(sizeof(Level)), free);
61 LineStream *level_stream = PUSH_LT(
66 LEVEL_LINE_MAX_LENGTH),
68 if (level_stream == NULL) {
71 level->background = PUSH_LT(
73 create_background_from_line_stream(level_stream),
75 if (level->background == NULL) {
79 level->rigid_bodies = PUSH_LT(lt, create_rigid_bodies(1024), destroy_rigid_bodies);
80 if (level->rigid_bodies == NULL) {
84 level->player = PUSH_LT(
86 create_player_from_line_stream(level_stream, level->rigid_bodies, broadcast),
88 if (level->player == NULL) {
92 level->platforms = PUSH_LT(
94 create_platforms_from_line_stream(level_stream),
96 if (level->platforms == NULL) {
100 level->goals = PUSH_LT(
102 create_goals_from_line_stream(level_stream),
104 if (level->goals == NULL) {
108 level->lava = PUSH_LT(
110 create_lava_from_line_stream(level_stream),
112 if (level->lava == NULL) {
116 level->back_platforms = PUSH_LT(
118 create_platforms_from_line_stream(level_stream),
120 if (level->back_platforms == NULL) {
124 level->boxes = PUSH_LT(
126 create_boxes_from_line_stream(level_stream, level->rigid_bodies),
128 if (level->boxes == NULL) {
132 level->labels = PUSH_LT(
134 create_labels_from_line_stream(level_stream),
136 if (level->labels == NULL) {
140 level->regions = PUSH_LT(
142 create_regions_from_line_stream(level_stream, broadcast),
144 if (level->regions == NULL) {
148 level->flying_mode = false;
149 level->flying_camera_position = vec(0.0f, 0.0f);
150 level->flying_camera_scale = 1.0f;
154 destroy_line_stream(RELEASE_LT(lt, level_stream));
159 void destroy_level(Level *level)
162 RETURN_LT0(level->lt);
165 int level_render(const Level *level, Camera *camera)
169 if (background_render(level->background, camera) < 0) {
173 if (platforms_render(level->back_platforms, camera) < 0) {
177 if (player_render(level->player, camera) < 0) {
181 if (boxes_render(level->boxes, camera) < 0) {
185 if (lava_render(level->lava, camera) < 0) {
189 if (platforms_render(level->platforms, camera) < 0) {
193 if (goals_render(level->goals, camera) < 0) {
197 if (labels_render(level->labels, camera) < 0) {
201 if (regions_render(level->regions, camera) < 0) {
208 int level_update(Level *level, float delta_time)
211 trace_assert(delta_time > 0);
213 boxes_float_in_lava(level->boxes, level->lava);
214 rigid_bodies_apply_omniforce(level->rigid_bodies, vec(0.0f, LEVEL_GRAVITY));
216 boxes_update(level->boxes, delta_time);
217 player_update(level->player, delta_time);
219 rigid_bodies_collide(level->rigid_bodies, level->platforms);
221 player_hide_goals(level->player, level->goals);
222 player_die_from_lava(level->player, level->lava);
223 regions_player_enter(level->regions, level->player);
224 regions_player_leave(level->regions, level->player);
226 goals_update(level->goals, delta_time);
227 lava_update(level->lava, delta_time);
228 labels_update(level->labels, delta_time);
233 int level_event(Level *level, const SDL_Event *event)
238 switch (event->type) {
240 switch (event->key.keysym.sym) {
242 player_jump(level->player);
247 case SDL_JOYBUTTONDOWN:
248 if (event->jbutton.button == 1) {
249 player_jump(level->player);
253 case SDL_MOUSEMOTION:
254 if (level->flying_mode) {
255 vec_add(&level->flying_camera_position,
256 vec((float) event->motion.xrel, (float) event->motion.yrel));
261 if (level->flying_mode) {
262 // TODO(#679): zooming in flying mode is not smooth enough
263 if (event->wheel.y > 0) {
264 level->flying_camera_scale += 0.1f;
265 } else if (event->wheel.y < 0) {
266 level->flying_camera_scale = fmaxf(0.1f, level->flying_camera_scale - 0.1f);
275 int level_input(Level *level,
276 const Uint8 *const keyboard_state,
277 SDL_Joystick *the_stick_of_joy)
280 trace_assert(keyboard_state);
281 (void) the_stick_of_joy;
283 if (keyboard_state[SDL_SCANCODE_A]) {
284 player_move_left(level->player);
285 } else if (keyboard_state[SDL_SCANCODE_D]) {
286 player_move_right(level->player);
287 } else if (the_stick_of_joy && SDL_JoystickGetAxis(the_stick_of_joy, 0) < 0) {
288 player_move_left(level->player);
289 } else if (the_stick_of_joy && SDL_JoystickGetAxis(the_stick_of_joy, 0) > 0) {
290 player_move_right(level->player);
292 player_stop(level->player);
298 int level_reload_preserve_player(Level *level, const char *file_name, Broadcast *broadcast)
300 Lt * const lt = create_lt();
305 /* TODO(#104): duplicate code in create_level_from_file and level_reload_preserve_player */
307 LineStream * const level_stream = PUSH_LT(
312 LEVEL_LINE_MAX_LENGTH),
313 destroy_line_stream);
314 if (level_stream == NULL) {
318 Background * const background = create_background_from_line_stream(level_stream);
319 if (background == NULL) {
322 level->background = RESET_LT(level->lt, level->background, background);
324 Player * const skipped_player = create_player_from_line_stream(level_stream, level->rigid_bodies, broadcast);
325 if (skipped_player == NULL) {
328 destroy_player(skipped_player);
330 Platforms * const platforms = create_platforms_from_line_stream(level_stream);
331 if (platforms == NULL) {
334 level->platforms = RESET_LT(level->lt, level->platforms, platforms);
336 Goals * const goals = create_goals_from_line_stream(level_stream);
340 level->goals = RESET_LT(level->lt, level->goals, goals);
342 Lava * const lava = create_lava_from_line_stream(level_stream);
346 level->lava = RESET_LT(level->lt, level->lava, lava);
348 Platforms * const back_platforms = create_platforms_from_line_stream(level_stream);
349 if (back_platforms == NULL) {
352 level->back_platforms = RESET_LT(level->lt, level->back_platforms, back_platforms);
354 Boxes * const boxes = create_boxes_from_line_stream(level_stream, level->rigid_bodies);
358 level->boxes = RESET_LT(level->lt, level->boxes, boxes);
360 Labels * const labels = create_labels_from_line_stream(level_stream);
361 if (labels == NULL) {
364 level->labels = RESET_LT(level->lt, level->labels, labels);
366 Regions * const regions = create_regions_from_line_stream(level_stream, broadcast);
367 if (regions == NULL) {
370 level->regions = RESET_LT(level->lt, level->regions, regions);
375 int level_sound(Level *level, Sound_samples *sound_samples)
377 if (goals_sound(level->goals, sound_samples) < 0) {
381 if (player_sound(level->player, sound_samples) < 0) {
388 void level_toggle_debug_mode(Level *level)
390 background_toggle_debug_mode(level->background);
393 int level_enter_camera_event(Level *level, Camera *camera)
395 if (!level->flying_mode) {
396 player_focus_camera(level->player, camera);
397 camera_scale(camera, 1.0f);
399 camera_center_at(camera, level->flying_camera_position);
400 camera_scale(camera, level->flying_camera_scale);
403 goals_cue(level->goals, camera);
404 goals_checkpoint(level->goals, level->player);
405 labels_enter_camera_event(level->labels, camera);
409 struct EvalResult level_send(Level *level, Gc *gc, struct Scope *scope, struct Expr path)
415 const char *target = NULL;
416 struct Expr rest = void_expr();
417 struct EvalResult res = match_list(gc, "q*", path, &target, &rest);
422 if (strcmp(target, "goal") == 0) {
423 return goals_send(level->goals, gc, scope, rest);
424 } else if (strcmp(target, "label") == 0) {
425 return labels_send(level->labels, gc, scope, rest);
426 } else if (strcmp(target, "box") == 0) {
427 return boxes_send(level->boxes, gc, scope, rest);
428 } else if (strcmp(target, "body-push") == 0) {
429 long int id = 0, x = 0, y = 0;
430 res = match_list(gc, "ddd", rest, &id, &x, &y);
435 rigid_bodies_apply_force(level->rigid_bodies, (size_t) id, vec((float) x, (float) y));
437 return eval_success(NIL(gc));
438 } else if (strcmp(target, "body-add") == 0) {
439 long int x = 0, y = 0, w = 0, h = 0;
440 const char *color = 0;
441 res = match_list(gc, "dddds", rest, &x, &y, &w, &h, &color);
449 (long int) rigid_bodies_add(
451 rect((float)x, (float)y, (float)w, (float)h),
453 } else if (strcmp(target, "fly") == 0) {
454 level->flying_mode = !level->flying_mode;
455 SDL_SetRelativeMouseMode(level->flying_mode);
456 return eval_success(NIL(gc));
459 return unknown_target(gc, "level", target);