feat(engine): 重构游戏引擎核心逻辑

- 重新设计了引擎的初始化和运行流程
- 引入了实体组件系统(ECS)和物理系统
- 优化了渲染系统和输入系统
- 移除了不必要的资源管理系统
- 调整了日志系统的实现

game_engine/ecs/ge_physics_system.h

@@ -0,0 +1,39 @@
+#ifndef __GE_PHYSICS_SYSTEM_H__
+#define __GE_PHYSICS_SYSTEM_H__ 
+
+#include "ge_entity.h"
+#include "ge_physics_component.h"
+#include <pynic_log/pynic_log.h>
+
+typedef struct ge_physics_system {
+    ge_ecs_storage_t* ecs;
+} ge_physics_system_t;
+
+#define _GE_PHYSICS_MASK (GE_PHYSICS_MASK | GE_COMPONENT_ACVIVE)
+
+static inline void
+ge_physics_system_run_all(ge_physics_system_t* ctx) {
+    Assert(ctx != NULL);
+    ge_ecs_storage_t* ecs = ctx->ecs;
+    Assert(ecs != NULL);
+    for (int i = 1; i <= ecs->count && i < GE_ECS_MAX; ++i) {
+        ge_entity_t* entity = &ecs->entities[i];
+        ge_ecs_mask_t mask = entity->component_mask;
+        if ((mask & _GE_PHYSICS_MASK) != _GE_PHYSICS_MASK) continue;
+
+        ge_physics_component_t* comp = &entity->physics_body;
+        Assert(comp != NULL);
+        ge_physics_component_type_t type= comp->type;
+
+        if (type & GE_PHYSICS_COMPONENT_TYPE_ACCELERATION) {
+            comp->velocity.x += comp->acceleration.x >> GE_PHYSICS_ACCELERATION_BIT;
+            comp->velocity.y += comp->acceleration.y >> GE_PHYSICS_ACCELERATION_BIT;
+        }
+        if (type & GE_PHYSICS_COMPONENT_TYPE_VELOCITY) {
+            entity->position.x += comp->velocity.x >> GE_PHYSICS_VELOCITY_BIT;
+            entity->position.y += comp->velocity.y >> GE_PHYSICS_VELOCITY_BIT;
+        }
+    }
+}
+
+#endif // __GE_PHYSICS_SYSTEM_H__