Turned the Transform namespace into TransformSystem so it would be able to subscribe to EntityDeleted and clean up after itself

2016-03-13 00:55:53 +01:00
parent f6113b9d9c
commit a1fda82d3a
31 changed files with 311 additions and 128 deletions
@@ -0,0 +1,39 @@
+#ifndef Transform_h__
+#define Transform_h__
+
+#include "../GLM.h"
+#include "System.h"
+#include "EEntityDeleted.h"
+
+class TransformSystem : public System
+{
+public:
+    TransformSystem(SystemParams params);
+
+    //glm::mat4 AbsoluteTransformation(EntityWrapper entity);
+    static glm::vec3 AbsolutePosition(EntityWrapper entity);
+    static glm::vec3 AbsolutePosition(World* world, EntityID entity);
+    static glm::vec3 AbsoluteOrientationEuler(EntityWrapper entity);
+    static glm::quat AbsoluteOrientation(EntityWrapper entity);
+    static glm::quat AbsoluteOrientation(World* world, EntityID entity);
+    static glm::vec3 AbsoluteScale(EntityWrapper entity);
+    static glm::vec3 AbsoluteScale(World* world, EntityID entity);
+    static glm::mat4 ModelMatrix(EntityWrapper entity);
+    static glm::mat4 ModelMatrix(EntityID entity, World* world);
+    static glm::vec3 TransformPoint(const glm::vec3& point, const glm::mat4& matrix);
+
+    static int RecalculatedPositions;
+    static int RecalculatedOrientations;
+    static int RecalculatedScales;
+
+private:
+    static std::unordered_map<EntityWrapper, glm::vec3> PositionCache;
+    static std::unordered_map<EntityWrapper, glm::quat> OrientationCache;
+    static std::unordered_map<EntityWrapper, glm::vec3> ScaleCache;
+    static std::unordered_map<EntityWrapper, glm::mat4> MatrixCache;
+
+    EventRelay<TransformSystem, Events::EntityDeleted> m_EEntityDeleted;
+    bool OnEntityDeleted(const Events::EntityDeleted& e);
+};
+
+#endif