KlemenPl/PixelDefense
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Use stack alloc for sorting draw data

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This commit is contained in:
Klemen Plestenjak
2024-01-15 11:34:49 +01:00
parent e2684fc496
commit 5e6a9b628c
2 changed files with 8 additions and 11 deletions
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1
game/game_state.h
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@@ -82,7 +82,6 @@ typedef struct Game {
f32 elapsed; f32 elapsed;
ecs_query_t *drawQuery; ecs_query_t *drawQuery;
DrawData *drawData;
} Game; } Game;
static void setScreen(Game *game, GameScreen newScreen) { static void setScreen(Game *game, GameScreen newScreen) {

18
game/main.c
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@@ -107,7 +107,6 @@ bool init(void *userData) {
Game *game = ecs_singleton_get_mut(ECS, Game); Game *game = ecs_singleton_get_mut(ECS, Game);
setScreen(game, SCREEN_MAIN_MENU); setScreen(game, SCREEN_MAIN_MENU);
game->font = LoadFontEx("assets/fonts/CompassPro.ttf", 92, NULL, 0); game->font = LoadFontEx("assets/fonts/CompassPro.ttf", 92, NULL, 0);
game->drawData = bzArrayCreate(DrawData, 1000);
game->drawQuery = ecs_query(ECS, { game->drawQuery = ecs_query(ECS, {
.filter.terms = { .filter.terms = {
{ ecs_id(Position) }, { ecs_id(Position) },
@@ -291,8 +290,6 @@ void deinit(void *userData) {
bzObjectPoolDestroy(game->pools.btNode); bzObjectPoolDestroy(game->pools.btNode);
bzObjectPoolDestroy(game->pools.btNodeState); bzObjectPoolDestroy(game->pools.btNodeState);
bzArrayDestroy(game->drawData);
soundsUnloadAll(sounds); soundsUnloadAll(sounds);
bzUIDestroy(UI); bzUIDestroy(UI);
@@ -316,7 +313,6 @@ void update(float dt, void *userData) {
if (game->screen != game->nextScreen) if (game->screen != game->nextScreen)
game->screen = game->nextScreen; game->screen = game->nextScreen;
BZ_ASSERT(game->stackAlloc.allocated == 0);
bzStackAllocReset(&game->stackAlloc); bzStackAllocReset(&game->stackAlloc);
ImGuiIO *io = igGetIO(); ImGuiIO *io = igGetIO();
@@ -358,9 +354,11 @@ static void renderGame(Game *game, float dt) {
// Ground UI // Ground UI
drawPlayerInputUIGround(); drawPlayerInputUIGround();
// Entities // Entities
bzArrayClear(game->drawData); i32 numDraws = ecs_query_entity_count(game->drawQuery);
DrawData *drawData = bzStackAlloc(&game->stackAlloc, numDraws * sizeof(*drawData));
ecs_iter_t it = ecs_query_iter(ECS, game->drawQuery); ecs_iter_t it = ecs_query_iter(ECS, game->drawQuery);
ecs_entity_t worker = 0; ecs_entity_t worker = 0;
i32 drawIdx = 0;
while (ecs_iter_next(&it)) { while (ecs_iter_next(&it)) {
Position *p = ecs_field(&it, Position, 1); Position *p = ecs_field(&it, Position, 1);
Size *s = ecs_field(&it, Size, 2); Size *s = ecs_field(&it, Size, 2);
@@ -382,19 +380,19 @@ static void renderGame(Game *game, float dt) {
src.height -= 0.02f; src.height -= 0.02f;
if (t[i].flipX) src.width *= -1.0f; if (t[i].flipX) src.width *= -1.0f;
if (t[i].flipY) src.height *= -1.0f; if (t[i].flipY) src.height *= -1.0f;
bzArrayPush(game->drawData, (DrawData) { drawData[drawIdx++] = (DrawData) {
.tex = t[i].texture, .tex = t[i].texture,
.src = src, .src = src,
.dst = dst, .dst = dst,
.origin = origin, .origin = origin,
.rotation = r[i] .rotation = r[i]
}); };
} }
} }
qsort(game->drawData, bzArraySize(game->drawData), sizeof(*game->drawData), cmpDrawData); qsort(drawData, numDraws, sizeof(*drawData), cmpDrawData);
for (i32 i = 0; i < bzArraySize(game->drawData); i++) { for (i32 i = 0; i < numDraws; i++) {
DrawData draw = game->drawData[i]; DrawData draw = drawData[i];
DrawTexturePro(draw.tex, draw.src, draw.dst, draw.origin, draw.rotation, WHITE); DrawTexturePro(draw.tex, draw.src, draw.dst, draw.origin, draw.rotation, WHITE);
} }
Vector2 target = GetMousePosition(); Vector2 target = GetMousePosition();