Added picking event

include/Engine/Rendering/EPicking.h

@@ -0,0 +1,69 @@
+#ifndef Events_Picking_h__
+#define Events_Picking_h__
+
+#include "../OpenGL.h"
+#include "../GLM.h"
+
+#include "../Core/EventBroker.h"
+#include "Util/ScreenCoords.h"
+#include "FrameBuffer.h"
+#include "../Core/Entity.h"
+#include "Util/UnorderedMapVec2.h"
+
+namespace Events
+{
+
+/** Thrown Every frame, use functions to pick*/
+struct Picking : Event
+{
+public:
+    Picking(FrameBuffer* pickingBuffer, GLuint* depthBuffer, glm::mat4 projectionMatrix, glm::mat4 viewMatrix, Rectangle resolution, const std::unordered_map<glm::vec2, EntityID>* pickingColorsToEntity)
+        : PickingBuffer(pickingBuffer)
+        , DepthBuffer(depthBuffer)
+        , ProjectionMatrix(projectionMatrix)
+        , ViewMatrix(viewMatrix)
+        , Resolution(resolution)
+        , PickingColorsToEntity(pickingColorsToEntity)
+    { }
+        
+    
+
+    struct PickData
+    {
+        //Picked Entity
+        EntityID Entity;
+        //World position of the "pick"
+        glm::vec3 Position;
+    };
+
+    PickData Pick(glm::vec2 screenCoord) const
+    {
+        PickData pickData;
+
+        ScreenCoords::PixelData data = ScreenCoords::ToPixelData(screenCoord, PickingBuffer, *DepthBuffer);
+
+        auto it = PickingColorsToEntity->find(glm::vec2(data.Color[0], data.Color[1]));
+        if (it != PickingColorsToEntity->end()) {
+            pickData.Entity = it->second;
+        } else {
+            pickData.Entity = -1;
+        }
+        pickData.Position = ScreenCoords::ToWorldPos(screenCoord.x, Resolution.Width - screenCoord.y, data.Depth, Resolution, ProjectionMatrix, ViewMatrix);
+
+        return pickData;
+    }
+
+
+private:
+    FrameBuffer* PickingBuffer;
+    GLuint* DepthBuffer;
+    const glm::mat4 ProjectionMatrix;
+    const glm::mat4 ViewMatrix;
+    const Rectangle Resolution;
+    const std::unordered_map<glm::vec2, EntityID>* PickingColorsToEntity;
+    
+};
+
+}
+
+#endif

include/Engine/Rendering/Renderer.h

@@ -11,15 +11,24 @@
 #include "FrameBuffer.h"
 #include "../Core/World.h"
 
+#include "../Core/EventBroker.h"
+#include "EPicking.h"
+
 class Renderer : public IRenderer
 {
 public:
+    Renderer(EventBroker* eventBroker) 
+        : m_EventBroker(eventBroker)
+    { }
+
 	virtual void Initialize() override;
 	virtual void Update(double dt) override;
 	virtual void Draw(RenderQueueCollection& rq) override;
 
 private:
 	//----------------------Variables----------------------//
+    EventBroker* m_EventBroker;
+
 	Texture* m_ErrorTexture;
 	Texture* m_WhiteTexture;
 	float m_CameraMoveSpeed;
@@ -31,8 +40,6 @@ private:
     Model* m_UnitQuad;
     Model* m_UnitSphere;
 
-
-    
     std::unordered_map<glm::vec2, EntityID> m_PickingColorsToEntity;
 
 	//----------------------Functions----------------------//