public virtual LightColour GetLight(double x, double y)
{
int x0 = (int)Math.Floor(x - X);
int y0 = (int)Math.Floor(y - Y);
if (x0 == x && y0 == y)
{
return(myLighting[x0, y0]);
}
int x1 = x0 + 1;
int y1 = y0 + 1;
x -= x0;
y -= y0;
LightColour x0y0a = myLighting[x0, y0];
LightColour x1y0a = myLighting[x1, y0];
LightColour x1y1a = myLighting[x1, y1];
LightColour x0y1a = myLighting[x0, y1];
float r = (float)((x0y0a.R * (1 - x) + x1y0a.R * x) * (1 - y) + (x0y1a.R * (1 - x) + x1y1a.R * x) * y);
float g = (float)((x0y0a.G * (1 - x) + x1y0a.G * x) * (1 - y) + (x0y1a.G * (1 - x) + x1y1a.G * x) * y);
float b = (float)((x0y0a.B * (1 - x) + x1y0a.B * x) * (1 - y) + (x0y1a.B * (1 - x) + x1y1a.B * x) * y);
return(new LightColour(r, g, b));
}
public void FillLighting(LightColour colour)
{
for (int x = 0; x < Width + 1; ++x)
{
for (int y = 0; y < Height + 1; ++y)
{
myLighting[x, y] = colour;
}
}
UpdateLighting();
}
protected virtual float[] GetRawLightData()
{
float[] data = new float[myLightCount * 20];
int i = 0;
for (int x = 0; x < Width; ++x)
{
for (int y = 0; y < Height; ++y)
{
if (myTiles[x, y].IsVisible)
{
float rx = (X + x) * 16.0f;
float ry = (Y + y) * 16.0f;
float yInc = 16.0f;
if (SmoothLighting)
{
if (myTiles[x, y].UseHalfLighting)
{
data[i++] = rx;
data[i++] = ry + 8.0f;
data[i++] = myLighting[x, y + 1].R;
data[i++] = myLighting[x, y + 1].G;
data[i++] = myLighting[x, y + 1].B;
data[i++] = rx + 16.0f;
data[i++] = ry + 8.0f;
data[i++] = myLighting[x + 1, y + 1].R;
data[i++] = myLighting[x + 1, y + 1].G;
data[i++] = myLighting[x + 1, y + 1].B;
data[i++] = rx + 16.0f;
data[i++] = ry + 16.0f;
data[i++] = myLighting[x + 1, y + 1].R;
data[i++] = myLighting[x + 1, y + 1].G;
data[i++] = myLighting[x + 1, y + 1].B;
data[i++] = rx;
data[i++] = ry + 16.0f;
data[i++] = myLighting[x, y + 1].R;
data[i++] = myLighting[x, y + 1].G;
data[i++] = myLighting[x, y + 1].B;
yInc = 8.0f;
}
data[i++] = rx;
data[i++] = ry;
data[i++] = myLighting[x, y].R;
data[i++] = myLighting[x, y].G;
data[i++] = myLighting[x, y].B;
data[i++] = rx + 16.0f;
data[i++] = ry;
data[i++] = myLighting[x + 1, y].R;
data[i++] = myLighting[x + 1, y].G;
data[i++] = myLighting[x + 1, y].B;
data[i++] = rx + 16.0f;
data[i++] = ry + yInc;
data[i++] = myLighting[x + 1, y + 1].R;
data[i++] = myLighting[x + 1, y + 1].G;
data[i++] = myLighting[x + 1, y + 1].B;
data[i++] = rx;
data[i++] = ry + yInc;
data[i++] = myLighting[x, y + 1].R;
data[i++] = myLighting[x, y + 1].G;
data[i++] = myLighting[x, y + 1].B;
}
else
{
LightColour light = GetLight(x + 0.5, y + 0.5);
float r = light.R;
float g = light.G;
float b = light.B;
data[i++] = rx;
data[i++] = ry;
data[i++] = r;
data[i++] = g;
data[i++] = b;
data[i++] = rx + 16.0f;
data[i++] = ry;
data[i++] = r;
data[i++] = g;
data[i++] = b;
data[i++] = rx + 16.0f;
data[i++] = ry + 16.0f;
data[i++] = r;
data[i++] = g;
data[i++] = b;
data[i++] = rx;
data[i++] = ry + 16.0f;
data[i++] = r;
data[i++] = g;
data[i++] = b;
}
}
}
}
return(data);
}
