void PaintEarth(Vector3 cursorLocation)
{
if (enableRotation)
{
return;
}
// Convert cursor location to texture coordinates
Vector2 uv = Conversion.GetUVFromSpherePoint(cursorLocation);
// Paints thick pixel on texture position
int x = (int)(uv.x * earthTex.width);
int y = (int)(uv.y * earthTex.height);
for (int j = -penWidth; j < penWidth; j++)
{
int jj = (y + j) * earthTex.width;
for (int k = -penWidth; k < penWidth; k++)
{
int colorIndex = jj + x + k;
if (colorIndex < 0 || colorIndex >= colors.Length)
{
continue;
}
Color32 currentColor = colors[colorIndex];
float t = 1.0f - Mathf.Clamp01((float)(j * j + k * k) / (penWidth * penWidth)); // for smooth drawing
colors[colorIndex] = Color32.Lerp(currentColor, penColor, t);
}
}
needTextureUpdate = true;
}
float ComputeCenteredHorizontalOffset()
{
Vector3 centerLocation = map.GetCurrentMapLocation();
Vector2 uv = Conversion.GetUVFromSpherePoint(centerLocation);
return(uv.x);
}