127 lines
3.4 KiB
C
127 lines
3.4 KiB
C
#ifndef FLECS_PLAYER_IMPL
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#include "flecs_player.h"
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#endif
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static
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void player_start(
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ecs_world_t *world,
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void *ctx)
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{
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ecs_ref_t *ref = ctx;
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EcsPlayer *player = (EcsPlayer*)ecs_get_ref_w_entity(world, ref, 0, 0);
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ecs_assert(player != NULL, ECS_INTERNAL_ERROR, NULL);
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player->snapshot = ecs_snapshot_take(world);
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player->time_scale = 1.0;
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ecs_set_time_scale(world, 1.0);
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ecs_set_pipeline(world, player->play_pipeline);
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ecs_os_free(ref);
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}
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static
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void player_stop(
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ecs_world_t *world,
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void *ctx)
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{
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ecs_ref_t *ref = ctx;
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EcsPlayer *player = (EcsPlayer*)ecs_get_ref_w_entity(world, ref, 0, 0);
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ecs_assert(player != NULL, ECS_INTERNAL_ERROR, NULL);
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if (player->snapshot) {
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ecs_snapshot_restore(world, player->snapshot);
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player = (EcsPlayer*)ecs_get_ref_w_entity(world, ref, 0, 0);
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ecs_set_time_scale(world, 0);
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ecs_reset_clock(world);
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player->time_scale = 0;
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player->state = EcsPlayerStop;
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player->prev_state = EcsPlayerStop;
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}
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player->snapshot = NULL;
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ecs_set_pipeline(world, player->stop_pipeline);
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ecs_os_free(ref);
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}
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static
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void EcsSetPlayer(ecs_iter_t *it) {
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ecs_world_t *world = it->world;
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EcsPlayer *player = ecs_column(it, EcsPlayer, 1);
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ecs_entity_t ecs_typeid(EcsPlayer) = ecs_column_entity(it, 1);
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int32_t i;
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for (i = 0; i < it->count; i ++) {
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EcsPlayerState prev_state = player[i].prev_state;
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EcsPlayerState state = player[i].state;
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if (prev_state != state) {
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switch(player[i].state) {
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case EcsPlayerPause:
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player[i].time_scale = 0;
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break;
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case EcsPlayerPlay:
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if (prev_state == EcsPlayerStop) {
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ecs_ref_t *ref = ecs_os_calloc(sizeof(ecs_ref_t));
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ecs_get_ref(world, ref, it->entities[i], EcsPlayer);
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ecs_run_post_frame(it->world, player_start, ref);
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} else {
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player[i].time_scale = 1.0;
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}
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break;
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case EcsPlayerStop:
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if (prev_state != EcsPlayerStop) {
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ecs_ref_t *ref = ecs_os_calloc(sizeof(ecs_ref_t));
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ecs_get_ref(world, ref, it->entities[i], EcsPlayer);
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ecs_run_post_frame(world, player_stop, ref);
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}
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player[i].time_scale = 0;
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break;
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default:
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break;
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}
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}
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player[i].prev_state = state;
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ecs_set_time_scale(it->world, player[i].time_scale);
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}
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}
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void FlecsPlayerImport(
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ecs_world_t *world)
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{
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ECS_MODULE(world, FlecsPlayer);
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ECS_IMPORT(world, FlecsMeta);
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ecs_set_name_prefix(world, "Ecs");
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ECS_META(world, EcsPlayerState);
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ECS_META(world, EcsPlayer);
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ECS_META(world, EcsTargetFps);
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ECS_PIPELINE(world, StopPipeline,
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flecs.pipeline.PreFrame,
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flecs.pipeline.OnLoad,
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flecs.pipeline.PostLoad,
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flecs.pipeline.PreStore,
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flecs.pipeline.OnStore,
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flecs.pipeline.PostFrame);
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ECS_SYSTEM(world, EcsSetPlayer, EcsOnSet, EcsPlayer);
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ecs_set(world, EcsWorld, EcsPlayer, {
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.state = EcsPlayerPlay,
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.prev_state = EcsPlayerStop,
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.time_scale = 1,
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.play_pipeline = ecs_get_pipeline(world),
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.stop_pipeline = StopPipeline
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});
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ECS_EXPORT_COMPONENT(EcsPlayer);
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}
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