Runtime/GUI/UIMesh.h


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#pragma once 

#include "Runtime/Utilities/Exception.h"
#include "Runtime/Rendering/DynamicMesh.h"
#include "Runtime/Math/Math.h"
#include "Runtime/Utilities/StaticInitiator.h"
#include "Runtime/Graphics/CustomVertexLayout.h"
#include "Runtime/Graphics/DefaultVertexLayout.h"
#include "Runtime/Graphics/Color.h"
#include "Runtime/Graphics/GfxDevice.h"

struct UIVertexLayout
{
    UIVertexLayout(Vector2 pos = Vector2::zero, Vector2 texCoord = Vector2::zero, Color32 col = Color32())
    {
        position = pos; 
        uv = texCoord;
        color = col;
    }

	Vector2 position;
	Vector2 uv;
	Color32 color;
};

typedef uint16 UIIndex;

CustomException(UIMeshException);

// 所有的UIMesh都是左上角为原点
class UIMesh : public DynamicMesh
{
public:
	UIMesh() : DynamicMesh() {}
	virtual ~UIMesh() {}

	virtual void Draw() = 0;

	static CustomVertexLayout s_UIVertexLayout;
	static unsigned int s_SizePerVertex;
};