Dynamically change color of sprites

[pfredette]

I need help please!

I am developing an iPhone game where there will be multiple sprites of different colors. These sprites are completely identical in form and animation, except for their color. So basically:
bad guy#1 is red with a black hat
bad guy#2 is blue with a black hat
bad guy#3 is white with a white hat
bad guy#4 is orange with a green hat
etc.

Problem:
There are 120 animations for the sprites and 10 different color variations. That would mean managing and coding 1200 sprite sheets if the process were done manually.

Additional Challenge:
It's not just about changing 1 color in each sprite because:
There are 4 colors that need to change on each sprite.
The portion where the color changes moves in the sprite.

Solution needed:
What would be the best solution to deal with this issue through programming. I don't want to have 1200 sprite sheets (i.e. 120 sprite sheets for EACH color variation). I would like to have the colors change dynamically.

Thanks!

[smasher]

OpenGL allows you to set the color tint of each vertex. Each of your sprites would have to consist of several quads (pairs of triangles really) with different vertex colors for each quad. You'd have to use a single texture atlas/sprite sheet for this to draw in one call.

If you're using Cocos2D then you can still set the color of individual sprites - so each of your characters would have to be a node with several tinted sprites as children.

[fazalyazdan]

Originally Posted by smasher

OpenGL allows you to set the color tint of each vertex. Each of your sprites would have to consist of several quads (pairs of triangles really) with different vertex colors for each quad. You'd have to use a single texture atlas/sprite sheet for this to draw in one call.

If you're using Cocos2D then you can still set the color of individual sprites - so each of your characters would have to be a node with several tinted sprites as children.

Yes i am using cocos2d but please give me a single example of this that how can i do this.

[dany_dev]

here an example of what you want to do
Coloring Sprites with Cocos2d-iPhone - Cheetah Lurk