[resource] tweakable variables

uniform bool Cursor_Up      < source = "key"; keycode = 0x68; toggle = false; >;//numpad 8
uniform bool Cursor_Down    < source = "key"; keycode = 0x62; toggle = false; >;//numpad 2
uniform bool Cursor_Right   < source = "key"; keycode = 0x66; toggle = false; >;//numpad 6
uniform bool Cursor_Left    < source = "key"; keycode = 0x64; toggle = false; >;//numpad 4
uniform bool Cursor_Add     < source = "key"; keycode = 0x6B; toggle = false; >;//Add
uniform bool Cursor_Sub     < source = "key"; keycode = 0x6D; toggle = false; >;//Substract



texture2D RFX_CursorOldTex      { Width = 1;  Height = 1;  Format = RG16F;};
texture2D RFX_CursorTex         { Width = 1;  Height = 1;  Format = RG16F;};
sampler2D RFX_CursorBuffer      { Texture = RFX_CursorTex;   };
sampler2D RFX_CursorOldBuffer   { Texture = RFX_CursorOldTex;};

texture2D RFX_StoreTex            { Width = 10; Height = 10; Format = R32F;};
texture2D RFX_StoreOldTex         { Width = 10; Height = 10; Format = R32F;};
sampler2D RFX_StoreBuffer         { Texture = RFX_StoreTex;   };
sampler2D RFX_StoreOldBuffer      { Texture = RFX_StoreOldTex;};

float2  RFX_PS_Cursor(in float4 position : SV_Position, in float2 texcoord : TEXCOORD0) : SV_Target0
{
    float2 offset = 0;
    if(Cursor_Up   ) offset.y--;
    if(Cursor_Down ) offset.y++;
    if(Cursor_Right) offset.x++;
    if(Cursor_Left ) offset.x--;
    return saturate(tex2D(RFX_CursorOldBuffer, 0.5).xy + offset * 0.01);
}

float2  RFX_PS_CursorOld(in float4 position : SV_Position, in float2 texcoord : TEXCOORD0) : SV_Target0
{
    return tex2D(RFX_CursorBuffer, 0.5).xy;
}

float   RFX_PS_Store(in float4 position : SV_Position, in float2 texcoord : TEXCOORD0)  : SV_Target0
{
    float2 center = tex2D(RFX_CursorBuffer, 0.5).xy;
    center        = floor(center * 9) + 0.5;
    center        = abs(texcoord - center * 0.1);
    float  index  = (center.x < 0.05 && center.y < 0.05)? 1:0;
    float  value  = tex2D(RFX_StoreOldBuffer, texcoord).x;
    value        += (Cursor_Add)? 0.001 * index:0;
    value        -= (Cursor_Sub)? 0.001 * index:0;
    return value;
}

float  RFX_PS_StoreOld(in float4 position : SV_Position, in float2 texcoord : TEXCOORD0) : SV_Target0
{
    return tex2D(RFX_StoreBuffer, texcoord).x;
}

float4 RFX_PS_Debug(in float4 position : SV_Position, in float2 texcoord : TEXCOORD0) : SV_Target0
{
    float2 center = tex2D(RFX_CursorBuffer, 0.5).xy;
    center        = floor(center * 9) + 0.5;
    center        = abs(texcoord - center * 0.1);
    float  temp   = (center.x < 0.050 && center.y < 0.050)? 1:0;
    center.x      = (center.x < 0.045 && center.y < 0.045)? 0:temp;
    center.y      = 0;
    return tex2D(RFX_StoreBuffer, texcoord).xxxx + center.xyyy;
}

technique Storage < enabled = true; >//numpad 5
{
	pass 
	{
		VertexShader  = RFX_VS_PostProcess;
		PixelShader   = RFX_PS_Cursor;
        RenderTarget  = RFX_CursorTex;
	}
    pass 
	{
		VertexShader  = RFX_VS_PostProcess;
		PixelShader   = RFX_PS_CursorOld;
        RenderTarget  = RFX_CursorOldTex;
	}
	pass 
	{
		VertexShader  = RFX_VS_PostProcess;
		PixelShader   = RFX_PS_Store;
        RenderTarget  = RFX_StoreTex;
	}
    pass 
	{
		VertexShader  = RFX_VS_PostProcess;
		PixelShader   = RFX_PS_StoreOld;
        RenderTarget  = RFX_StoreOldTex;
	}   
}

technique Debug < enabled = false; toggle = 0x65;>//numpad 5
{
	pass 
	{
		VertexShader  = RFX_VS_PostProcess;
		PixelShader   = RFX_PS_Debug;
    }
}