PacMan.dctl

// PacMan DCTL

__DEVICE__ float length(float2 A)
{
float B = _sqrtf(A.x * A.x + A.y * A.y);
return B;
}

__DEVICE__ float2 minus(float2 A, float2 B)
{
float2 C;
C.x = A.x - B.x;
C.y = A.y - B.y;
return C;
}

__DEVICE__ float3 transform(int p_Width, int p_Height, int p_X, int p_Y, __TEXTURE__ p_TexR, __TEXTURE__ p_TexG, __TEXTURE__ p_TexB)
{ 

float2 f;
f.x = (float)p_X / p_Width;
f.y = (float)p_Y / p_Width;
f.y -= 0.281f;
float t = _tex2D(p_TexR, 500, 500);

float2 p;
p.x = f.x - _fmod(t / 2.0f, 1.4f) - 0.2f;
p.y = f.y;
float C1 = length(p) < 0.16f 
&& length(minus(p, make_float2(0.0f, -0.08f))) > 0.025f 
&& _fabs(_atan2f(p.y, p.x)) > _fabs(_cosf(t * 10.0f)) * 0.8f 
|| length(make_float2(_fmod(f.x, 0.125f) - 0.062f, f.y)) < 0.018f && p.x > 0.0f ? 1.0f : 0.0f;

return make_float3(C1, C1, 0.2f);

}