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remove ctx.update_multiplicity

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veclavtalica
2025-01-15 00:52:42 +03:00
parent 688d71953a
commit 851ab80292
2 changed files with 22 additions and 32 deletions
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5
src/twn_engine_context_c.h
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@@ -72,11 +72,6 @@ typedef struct EngineContext {
SDL_Window *window; SDL_Window *window;
uint32_t window_id; uint32_t window_id;
/* this should be a multiple of the current ticks per second */
/* use it to simulate low framerate (e.g. at 60 tps, set to 2 for 30 fps) */
/* it can be changed at runtime; any resulting logic anomalies are bugs */
uint32_t update_multiplicity;
bool is_running; bool is_running;
bool window_size_has_changed; bool window_size_has_changed;
bool resync_flag; bool resync_flag;

49
src/twn_loop.c
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@@ -204,34 +204,32 @@ static void main_loop(void) {
/* finally, let's get to work */ /* finally, let's get to work */
int frames = 0; int frames = 0;
while (ctx.frame_accumulator >= ctx.desired_frametime * ctx.update_multiplicity) { while (ctx.frame_accumulator >= ctx.desired_frametime) {
frames += 1; frames += 1;
for (size_t i = 0; i < ctx.update_multiplicity; ++i) { /* TODO: disable rendering pushes on not-last ? */
/* TODO: disable rendering pushes on not-last ? */ render_queue_clear();
render_queue_clear(); poll_events();
poll_events(); if (ctx.window_size_has_changed)
if (ctx.window_size_has_changed) update_viewport();
update_viewport(); input_state_update(&ctx.input);
input_state_update(&ctx.input); game_object_tick();
game_object_tick(); input_state_update_postframe(&ctx.input);
input_state_update_postframe(&ctx.input);
#ifdef TWN_FEATURE_PUSH_AUDIO #ifdef TWN_FEATURE_PUSH_AUDIO
static uint8_t audio_buffer[(AUDIO_FREQUENCY / 60) * sizeof (float) * 2]; static uint8_t audio_buffer[(AUDIO_FREQUENCY / 60) * sizeof (float) * 2];
audio_callback(NULL, audio_buffer, sizeof audio_buffer); audio_callback(NULL, audio_buffer, sizeof audio_buffer);
if (SDL_QueueAudio(ctx.audio_device, audio_buffer, sizeof audio_buffer)) if (SDL_QueueAudio(ctx.audio_device, audio_buffer, sizeof audio_buffer))
CRY_SDL("Error queueing audio: "); CRY_SDL("Error queueing audio: ");
#endif #endif
preserve_persistent_ctx_fields(); preserve_persistent_ctx_fields();
ctx.frame_accumulator -= ctx.desired_frametime; ctx.frame_accumulator -= ctx.desired_frametime;
ctx.game.frame_number++; ctx.game.frame_number++;
/* TODO: should we ask for reinitialization in such case? */ /* TODO: should we ask for reinitialization in such case? */
if (ctx.game.frame_number > 16777216) if (ctx.game.frame_number > 16777216)
ctx.game.frame_number = 0; ctx.game.frame_number = 0;
ctx.game.initialization_needed = false; ctx.game.initialization_needed = false;
}
} }
/* TODO: in some cases machine might want to assume frames will be fed as much as possible */ /* TODO: in some cases machine might want to assume frames will be fed as much as possible */
@@ -555,9 +553,6 @@ static bool initialize(void) {
} }
/* you could change this at runtime if you wanted */
ctx.update_multiplicity = 1;
/* random seeding */ /* random seeding */
/* SDL_GetPerformanceCounter returns some platform-dependent number. */ /* SDL_GetPerformanceCounter returns some platform-dependent number. */
/* it should vary between game instances. i checked! random enough for me. */ /* it should vary between game instances. i checked! random enough for me. */