3 #include "game/camera.h"
4 #include "game/sound_samples.h"
5 #include "game/level/boxes.h"
6 #include "game/level/level_editor/color_picker.h"
7 #include "game/level/level_editor/rect_layer.h"
8 #include "game/level/level_editor/point_layer.h"
9 #include "game/level/level_editor/player_layer.h"
10 #include "game/level/level_editor/label_layer.h"
11 #include "game/level/level_editor/background_layer.h"
12 #include "ui/edit_field.h"
13 #include "system/stacktrace.h"
14 #include "system/nth_alloc.h"
15 #include "system/lt.h"
16 #include "system/lt_adapters.h"
17 #include "system/log.h"
18 #include "system/str.h"
20 #include "math/extrema.h"
21 #include "system/file.h"
23 #include "level_editor.h"
25 #define LEVEL_FOLDER_MAX_LENGTH 512
26 #define LEVEL_EDITOR_EDIT_FIELD_SIZE vec(5.0f, 5.0f)
27 #define LEVEL_EDITOR_EDIT_FIELD_COLOR COLOR_BLACK
29 #define LEVEL_EDITOR_NOTICE_SCALE vec(10.0f, 10.0f)
30 #define LEVEL_EDITOR_NOTICE_DURATION 1.0f
31 #define LEVEL_EDITOR_NOTICE_PADDING_TOP 100.0f
32 #define LEVEL_EDITOR_TMPMEM_CAPACITY (640 * KILO)
34 static int level_editor_dump(LevelEditor *level_editor);
36 // TODO(#994): too much duplicate code between create_level_editor and create_level_editor_from_file
38 LevelEditor *create_level_editor(Cursor *cursor)
41 LevelEditor *level_editor = PUSH_LT(
43 nth_calloc(1, sizeof(LevelEditor)),
45 if (level_editor == NULL) {
48 level_editor->lt = lt;
50 level_editor->edit_field_filename.font_size = LEVEL_EDITOR_EDIT_FIELD_SIZE;
51 level_editor->edit_field_filename.font_color = LEVEL_EDITOR_EDIT_FIELD_COLOR;
53 level_editor->background_layer = create_background_layer(hexstr("fffda5"));
54 level_editor->player_layer = create_player_layer(vec(0.0f, 0.0f), hexstr("ff8080"));
55 level_editor->platforms_layer = create_rect_layer("platform", cursor);
56 level_editor->goals_layer = create_point_layer("goal"),
57 level_editor->lava_layer = create_rect_layer("lava", cursor);
58 level_editor->back_platforms_layer = create_rect_layer("back_platform", cursor);
59 level_editor->boxes_layer = create_rect_layer("box", cursor);
60 level_editor->label_layer = create_label_layer("label");
61 level_editor->regions_layer = create_rect_layer("region", cursor),
63 level_editor->layers[LAYER_PICKER_BOXES] = rect_layer_as_layer(&level_editor->boxes_layer);
64 level_editor->layers[LAYER_PICKER_PLATFORMS] = rect_layer_as_layer(&level_editor->platforms_layer);
65 level_editor->layers[LAYER_PICKER_BACK_PLATFORMS] = rect_layer_as_layer(&level_editor->back_platforms_layer);
66 level_editor->layers[LAYER_PICKER_GOALS] = point_layer_as_layer(&level_editor->goals_layer);
67 level_editor->layers[LAYER_PICKER_PLAYER] = player_layer_as_layer(&level_editor->player_layer);
68 level_editor->layers[LAYER_PICKER_LAVA] = rect_layer_as_layer(&level_editor->lava_layer);
69 level_editor->layers[LAYER_PICKER_REGIONS] = rect_layer_as_layer(&level_editor->regions_layer);
70 level_editor->layers[LAYER_PICKER_BACKGROUND] = background_layer_as_layer(&level_editor->background_layer);
71 level_editor->layers[LAYER_PICKER_LABELS] = label_layer_as_layer(&level_editor->label_layer);
73 level_editor->notice = (FadingWigglyText) {
75 .text = "Level saved",
76 .color = rgba(0.0f, 0.0f, 0.0f, 0.0f),
77 .scale = LEVEL_EDITOR_NOTICE_SCALE
79 .duration = LEVEL_EDITOR_NOTICE_DURATION,
82 level_editor->camera_scale = 1.0f;
84 level_editor->undo_history = create_undo_history();
89 LevelEditor *create_level_editor_from_file(const char *file_name, Cursor *cursor)
91 trace_assert(file_name);
94 LevelEditor *level_editor = PUSH_LT(
96 nth_calloc(1, sizeof(LevelEditor)),
98 if (level_editor == NULL) {
101 level_editor->lt = lt;
103 level_editor->edit_field_filename.font_size = LEVEL_EDITOR_EDIT_FIELD_SIZE;
104 level_editor->edit_field_filename.font_color = LEVEL_EDITOR_EDIT_FIELD_COLOR;
106 level_editor->file_name =
109 string_duplicate(file_name, NULL),
113 .capacity = LEVEL_EDITOR_TMPMEM_CAPACITY,
114 .buffer = malloc(LEVEL_EDITOR_TMPMEM_CAPACITY),
116 trace_assert(tmpmem.buffer);
118 String input = read_whole_file(&tmpmem, file_name);
119 trace_assert(input.data);
121 String version = trim(chop_by_delim(&input, '\n'));
123 if (string_equal(version, STRING_LIT("1"))) {
124 chop_by_delim(&input, '\n');
125 } else if (string_equal(version, STRING_LIT("2"))) {
128 log_fail("Version `%s` is not supported. Expected version `%s`.\n",
129 string_to_cstr(&tmpmem, version),
134 level_editor->background_layer = chop_background_layer(&input);
135 level_editor->player_layer = chop_player_layer(&tmpmem, &input);
136 level_editor->platforms_layer = chop_rect_layer(&tmpmem, &input, "platform", cursor);
137 level_editor->goals_layer = chop_point_layer(&tmpmem, &input, "goal");
138 level_editor->lava_layer = chop_rect_layer(&tmpmem, &input, "lava", cursor);
139 level_editor->back_platforms_layer = chop_rect_layer(&tmpmem, &input, "back_platform", cursor);
140 level_editor->boxes_layer = chop_rect_layer(&tmpmem, &input, "box", cursor);
141 level_editor->label_layer = chop_label_layer(&tmpmem, &input, "label");
142 level_editor->regions_layer = chop_rect_layer(&tmpmem, &input, "region", cursor),
144 level_editor->layers[LAYER_PICKER_BOXES] = rect_layer_as_layer(&level_editor->boxes_layer);
145 level_editor->layers[LAYER_PICKER_PLATFORMS] = rect_layer_as_layer(&level_editor->platforms_layer);
146 level_editor->layers[LAYER_PICKER_BACK_PLATFORMS] = rect_layer_as_layer(&level_editor->back_platforms_layer);
147 level_editor->layers[LAYER_PICKER_GOALS] = point_layer_as_layer(&level_editor->goals_layer);
148 level_editor->layers[LAYER_PICKER_PLAYER] = player_layer_as_layer(&level_editor->player_layer);
149 level_editor->layers[LAYER_PICKER_LAVA] = rect_layer_as_layer(&level_editor->lava_layer);
150 level_editor->layers[LAYER_PICKER_REGIONS] = rect_layer_as_layer(&level_editor->regions_layer);
151 level_editor->layers[LAYER_PICKER_BACKGROUND] = background_layer_as_layer(&level_editor->background_layer);
152 level_editor->layers[LAYER_PICKER_LABELS] = label_layer_as_layer(&level_editor->label_layer);
154 level_editor->drag = false;
156 level_editor->notice = (FadingWigglyText) {
158 .text = "Level saved",
159 .color = rgba(0.0f, 0.0f, 0.0f, 0.0f),
160 .scale = LEVEL_EDITOR_NOTICE_SCALE
162 .duration = LEVEL_EDITOR_NOTICE_DURATION,
165 level_editor->camera_scale = 1.0f;
167 level_editor->undo_history = create_undo_history();
174 void destroy_level_editor(LevelEditor *level_editor)
176 trace_assert(level_editor);
177 destroy_undo_history(level_editor->undo_history);
178 destroy_rect_layer(level_editor->boxes_layer);
179 destroy_rect_layer(level_editor->platforms_layer);
180 destroy_rect_layer(level_editor->back_platforms_layer);
181 destroy_point_layer(level_editor->goals_layer);
182 destroy_rect_layer(level_editor->lava_layer);
183 destroy_rect_layer(level_editor->regions_layer);
184 destroy_label_layer(level_editor->label_layer);
187 int level_editor_render(const LevelEditor *level_editor,
188 const Camera *camera)
190 trace_assert(level_editor);
191 trace_assert(camera);
193 if (camera_clear_background(camera, color_picker_rgba(&level_editor->background_layer.color_picker)) < 0) {
197 const Rect world_viewport = camera_view_port(camera);
199 if (PLAYER_DEATH_LEVEL < world_viewport.y + world_viewport.h) {
200 if (camera_fill_rect(
203 world_viewport.x, PLAYER_DEATH_LEVEL,
204 world_viewport.w, world_viewport.h + fmaxf(0.0f, world_viewport.y - PLAYER_DEATH_LEVEL)),
205 LEVEL_EDITOR_DETH_LEVEL_COLOR) < 0) {
210 for (size_t i = 0; i < LAYER_PICKER_N; ++i) {
212 level_editor->layers[i],
214 i == level_editor->layer_picker) < 0) {
219 if (layer_picker_render(&level_editor->layer_picker, camera) < 0) {
223 if (level_editor->state == LEVEL_EDITOR_SAVEAS) {
225 const Vec2f size = LEVEL_EDITOR_EDIT_FIELD_SIZE;
226 const char *save_as_text = "Save as: ";
227 const Vec2f position = vec(200.0f, 200.0f);
228 const float save_as_width =
229 (float) strlen(save_as_text) * FONT_CHAR_WIDTH * size.x;
232 camera_render_text_screen(
235 LEVEL_EDITOR_EDIT_FIELD_SIZE,
236 LEVEL_EDITOR_EDIT_FIELD_COLOR,
239 if (edit_field_render_screen(
240 &level_editor->edit_field_filename,
242 vec(position.x + save_as_width, position.y)) < 0) {
247 const Rect screen_viewport = camera_view_port_screen(camera);
248 const Vec2f text_size = fading_wiggly_text_size(&level_editor->notice);
250 fading_wiggly_text_render(
251 &level_editor->notice, camera,
252 vec(screen_viewport.w * 0.5f - text_size.x * 0.5f,
253 LEVEL_EDITOR_NOTICE_PADDING_TOP));
259 int level_editor_saveas_event(LevelEditor *level_editor,
260 const SDL_Event *event,
261 const Camera *camera)
263 trace_assert(level_editor);
265 trace_assert(camera);
267 switch (event->type) {
269 if (event->key.keysym.sym == SDLK_RETURN) {
270 trace_assert(level_editor->file_name == NULL);
271 char path[LEVEL_FOLDER_MAX_LENGTH];
274 LEVEL_FOLDER_MAX_LENGTH,
275 "./assets/levels/%s.txt",
276 edit_field_as_text(&level_editor->edit_field_filename));
277 level_editor->file_name = PUSH_LT(
279 string_duplicate(path, NULL),
281 level_editor_dump(level_editor);
283 level_editor->state = LEVEL_EDITOR_IDLE;
289 return edit_field_event(&level_editor->edit_field_filename, event);
293 int level_editor_idle_event(LevelEditor *level_editor,
294 const SDL_Event *event,
297 trace_assert(level_editor);
299 trace_assert(camera);
301 switch (event->type) {
303 switch(event->key.keysym.sym) {
305 if (!SDL_IsTextInputActive()) {
306 if (level_editor->file_name) {
307 level_editor_dump(level_editor);
308 log_info("Saving level to `%s`\n", level_editor->file_name);
310 SDL_StartTextInput();
311 level_editor->state = LEVEL_EDITOR_SAVEAS;
317 if (event->key.keysym.mod & KMOD_CTRL) {
318 if (undo_history_empty(&level_editor->undo_history)) {
319 level_editor->bell = 1;
321 undo_history_pop(&level_editor->undo_history);
327 case SDL_MOUSEWHEEL: {
329 SDL_GetMouseState(&x, &y);
331 Vec2f position = camera_map_screen(camera, x, y);
332 if (event->wheel.y > 0) {
333 level_editor->camera_scale += 0.1f;
334 } else if (event->wheel.y < 0) {
335 level_editor->camera_scale = fmaxf(0.1f, level_editor->camera_scale - 0.1f);
337 camera_scale(camera, level_editor->camera_scale);
338 Vec2f zoomed_position = camera_map_screen(camera, x, y);
340 level_editor->camera_position =
342 level_editor->camera_position,
343 vec_sub(position, zoomed_position));
344 camera_center_at(camera, level_editor->camera_position);
347 case SDL_MOUSEBUTTONUP:
348 case SDL_MOUSEBUTTONDOWN: {
349 if (event->type == SDL_MOUSEBUTTONDOWN && event->button.button == SDL_BUTTON_MIDDLE) {
350 level_editor->drag = true;
353 if (event->type == SDL_MOUSEBUTTONUP && event->button.button == SDL_BUTTON_MIDDLE) {
354 level_editor->drag = false;
358 case SDL_MOUSEMOTION: {
359 if (level_editor->drag) {
360 const Vec2f next_position = camera_map_screen(camera, event->motion.x, event->motion.y);
361 const Vec2f prev_position = camera_map_screen(
363 event->motion.x + event->motion.xrel,
364 event->motion.y + event->motion.yrel);
366 vec_add(&level_editor->camera_position,
367 vec_sub(next_position, prev_position));
368 camera_center_at(camera, level_editor->camera_position);
374 bool selected = false;
375 if (layer_picker_event(
376 &level_editor->layer_picker,
385 level_editor->layers[level_editor->layer_picker],
388 &level_editor->undo_history) < 0) {
392 level_editor->click = 1;
399 int level_editor_event(LevelEditor *level_editor,
400 const SDL_Event *event,
403 trace_assert(level_editor);
405 trace_assert(camera);
407 switch (level_editor->state) {
408 case LEVEL_EDITOR_IDLE:
409 return level_editor_idle_event(level_editor, event, camera);
411 case LEVEL_EDITOR_SAVEAS:
412 return level_editor_saveas_event(level_editor, event, camera);
418 int level_editor_focus_camera(LevelEditor *level_editor,
421 camera_center_at(camera, level_editor->camera_position);
422 camera_scale(camera, level_editor->camera_scale);
426 static LayerPicker level_format_layer_order[LAYER_PICKER_N] = {
427 LAYER_PICKER_BACKGROUND,
429 LAYER_PICKER_PLATFORMS,
432 LAYER_PICKER_BACK_PLATFORMS,
438 /* TODO(#904): LevelEditor does not check that the saved level file is modified by external program */
439 static int level_editor_dump(LevelEditor *level_editor)
441 trace_assert(level_editor);
443 FILE *filedump = PUSH_LT(
445 fopen(level_editor->file_name, "w"),
448 if (fprintf(filedump, "%s\n", VERSION) < 0) {
452 for (size_t i = 0; i < LAYER_PICKER_N; ++i) {
453 if (layer_dump_stream(
454 level_editor->layers[level_format_layer_order[i]],
460 fclose(RELEASE_LT(level_editor->lt, filedump));
462 fading_wiggly_text_reset(&level_editor->notice);
463 level_editor->save = 1;
468 int level_editor_update(LevelEditor *level_editor, float delta_time)
470 return fading_wiggly_text_update(&level_editor->notice, delta_time);
473 void level_editor_sound(LevelEditor *level_editor, Sound_samples *sound_samples)
475 trace_assert(sound_samples);
478 if (level_editor->bell) {
479 level_editor->bell = 0;
480 sound_samples_play_sound(sound_samples, 2);
483 if (level_editor->click) {
484 level_editor->click = 0;
485 sound_samples_play_sound(sound_samples, 3);
488 if (level_editor->save) {
489 level_editor->save = 0;
490 sound_samples_play_sound(sound_samples, 4);