Changing the color of a sprite at runtime

Question

Is there a form to change the color of a sprite in runtime?}

I have a black point loaded with an image, but i dont want to load various images with different colors, is there a mode to change the color in runtime and not loading lot of images?

And i want to tell it what part to color of the sprite, is it possible?

Answer 1

I had to do something like this in XNA with pixel-art sprites. The best way i've found was using pixel shader.

The sprites are done in gray-scale (8 bits colors without alpha), then you'll have to map each gray-color to the correspondent 32 bit color you want, using a 256 lenght array of Colors.

In the shader you can use the gray colors of the sprite as a look-up table to the array of 32 bit colors.

Answer 2

If you refer to libgdx then the class com.badlogic.gdx.graphics.g2d.Sprite provides two different methods called setColor: http://libgdx.badlogicgames.com/nightlies/docs/api/com/badlogic/gdx/graphics/g2d/Sprite.html#setColor(com.badlogic.gdx.graphics.Color)

Answer 3

Color c = new Color(batch.getColor());
batch.setColor(a,b,c,d);
batch.draw(yourSprite, x, y);
batch.setColor(c);