[笔记]libgdx在一张pixmap上按照笔刷画图

public void drawPixmapForPaint(Pixmap sample, Pixmap paint, float px,
float py) {
int x = (int) (-getX() + px);
int y = (int) (-py + getY() + getHeight() - paint.getHeight());
for (int a = 0; a < paint.getWidth(); a++) {
for (int b = 0; b < paint.getHeight(); b++) {
if (paint.getPixel(a, b) != -256) {
pixmap.drawPixel(a + x, b + y,
sample.getPixel(a + x, b + y));
}
}
}
texture.draw(pixmap, 0, 0);
}

public void clearPixmap(float x, float y, int radius) {
int newX = (int) (x - getX() + 10);
int newY = (int) (-y + getY() + getHeight() - 10);
Blending blending = Pixmap.getBlending();
pixmap.setColor(0f, 0f, 0f, 0f);
Pixmap.setBlending(Blending.None);
pixmap.fillCircle(newX, newY, radius);
Pixmap.setBlending(blending);
texture.draw(pixmap, 0, 0);
}

@来自重庆-Var3D