public Pixmap toPixmap()
{
var pixmap = new MonoGamePixmap(_regionWidth, _regionHeight);
var texture2d = ((MonoGameTexture)_texture).texture2D;
var rawTextureRegionData = new Color[_regionWidth * _regionHeight];
Rectangle boundingRect = new Rectangle(getRegionX(), getRegionY(), _regionWidth, _regionHeight);
bool flipX = isFlipX();
bool flipY = isFlipY();
if (flipX)
{
boundingRect.X -= _regionWidth;
}
if (flipY)
{
boundingRect.Y -= _regionHeight;
}
texture2d.GetData(0, boundingRect, rawTextureRegionData, 0, _regionWidth * _regionHeight);
for (var x = 0; x < _regionWidth; x++)
{
for (var y = 0; y < _regionHeight; y++)
{
var actualX = x;
var actualY = y;
if (flipX)
{
actualX = _regionWidth - x;
}
if (flipY)
{
actualY = _regionHeight - y;
}
pixmap.drawPixel(actualX, actualY, MonoGameColor.toRGBA8888(rawTextureRegionData[x + y * _regionWidth]));
}
}
return(pixmap);
}
public void drawPixel(int x, int y, UInt32 color, bool blend = true)
{
var colorAlpha = MonoGameColor.getAAsByte(color);
if (x < getWidth() && y < getHeight() && x >= 0 && y >= 0 && colorAlpha > 0)
{
if (colorAlpha == 255 || !blend)
{
_pixmap[x, y] = color;
}
else
{
var newR = (byte)(MonoGameColor.getRAsByte(color) * colorAlpha + MonoGameColor.getAAsByte((uint)getPixel(x, y)) * (255 - colorAlpha));
var newG = (byte)(MonoGameColor.getRAsByte(color) * colorAlpha + MonoGameColor.getAAsByte((uint)getPixel(x, y)) * (255 - colorAlpha));
var newB = (byte)(MonoGameColor.getRAsByte(color) * colorAlpha + MonoGameColor.getAAsByte((uint)getPixel(x, y)) * (255 - colorAlpha));
_pixmap[x, y] = MonoGameColor.toRGBA8888(newR, newG, newB, colorAlpha);
}
}
}
public void drawCircle(int centerX, int centerY, int radius)
{
if (radius <= 0)
{
return;
}
var color = _setColor.toRGBA8888();
int radiusSquared = radius * radius;
drawPixel(centerX, centerY + radius, color);
drawPixel(centerX, centerY - radius, color);
drawPixel(centerX + radius, centerY, color);
drawPixel(centerX - radius, centerY, color);
var x = 1;
var y = (int)(Math.Sqrt(radiusSquared - 1) + 0.5);
while (x < y)
{
drawPixel(centerX + x, centerY + y, color);
drawPixel(centerX + x, centerY - y, color);
drawPixel(centerX - x, centerY + y, color);
drawPixel(centerX - x, centerY - y, color);
drawPixel(centerX + y, centerY + x, color);
drawPixel(centerX + y, centerY - x, color);
drawPixel(centerX - y, centerY + x, color);
drawPixel(centerX - y, centerY - x, color);
x += 1;
y = (int)(Math.Sqrt(radiusSquared - x * x) + 0.5);
}
if (x == y)
{
drawPixel(centerX + x, centerY + y, color);
drawPixel(centerX + x, centerY - y, color);
drawPixel(centerX - x, centerY + y, color);
drawPixel(centerX - x, centerY - y, color);
}
}