shuiyu1123
2d56cb3bc9
核心热路径(数学/内存/字符串/性能分析)用MASM汇编(SSE/AVX2) 外围系统(窗口/渲染/ECS/音频/UI/脚本)用C语言 含自研编辑器、VisualScript积木编程、中文渲染(glyph_atlas)
101 lines
3.2 KiB
C
101 lines
3.2 KiB
C
#include "world.h"
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#include <stdlib.h>
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#include <string.h>
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World* world_create(void) {
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World* w = (World*)calloc(1, sizeof(World));
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w->next_entity = 1;
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return w;
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}
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void world_destroy(World* world) {
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if (!world) return;
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for (uint32_t i = 0; i < world->entity_count; i++) {
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Entity e = world->entities[i];
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for (uint32_t c = 0; c < world->component_count; c++) {
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if (world->components[c][e] && world->component_tables[c].destroy) {
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world->component_tables[c].destroy(world->components[c][e]);
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}
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free(world->components[c][e]);
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}
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}
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free(world);
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}
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Entity world_create_entity(World* world) {
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if (world->entity_count >= MAX_ENTITIES) return 0;
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Entity e = world->next_entity++;
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world->entities[world->entity_count++] = e;
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world->entity_masks[e] = 0;
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return e;
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}
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void world_destroy_entity(World* world, Entity entity) {
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for (uint32_t c = 0; c < world->component_count; c++) {
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if (world->components[c][entity] && world->component_tables[c].destroy) {
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world->component_tables[c].destroy(world->components[c][entity]);
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}
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free(world->components[c][entity]);
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world->components[c][entity] = NULL;
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}
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world->entity_masks[entity] = 0;
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for (uint32_t i = 0; i < world->entity_count; i++) {
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if (world->entities[i] == entity) {
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world->entities[i] = world->entities[--world->entity_count];
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break;
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}
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}
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}
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int world_entity_alive(World* world, Entity entity) {
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for (uint32_t i = 0; i < world->entity_count; i++) {
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if (world->entities[i] == entity) return 1;
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}
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return 0;
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}
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ComponentType world_register_component(World* world, uint32_t size, ComponentVTable vtable) {
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ComponentType type = world->component_count++;
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world->component_sizes[type] = size;
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world->component_tables[type] = vtable;
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return type;
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}
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void* world_add_component(World* world, Entity entity, ComponentType type) {
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if (world->components[type][entity]) return world->components[type][entity];
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void* comp = calloc(1, world->component_sizes[type]);
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world->components[type][entity] = comp;
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world->entity_masks[entity] |= (1ULL << type);
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return comp;
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}
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void* world_get_component(World* world, Entity entity, ComponentType type) {
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return world->components[type][entity];
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}
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void world_remove_component(World* world, Entity entity, ComponentType type) {
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if (world->components[type][entity]) {
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if (world->component_tables[type].destroy) {
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world->component_tables[type].destroy(world->components[type][entity]);
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}
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free(world->components[type][entity]);
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world->components[type][entity] = NULL;
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world->entity_masks[entity] &= ~(1ULL << type);
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}
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}
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int world_has_component(World* world, Entity entity, ComponentType type) {
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return (world->entity_masks[entity] & (1ULL << type)) != 0;
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}
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void world_each(World* world, uint64_t mask, SystemFunc func, void* data) {
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for (uint32_t i = 0; i < world->entity_count; i++) {
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Entity e = world->entities[i];
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if ((world->entity_masks[e] & mask) == mask) {
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func(world, e, data);
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}
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}
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}
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