Sorry your browser is not supported!

My current game is a turn based graphical roguelike and I'm wanting to produce an effect that's similar to the screenshot, i.e. "real time" lighting of what the character can see. I've already coded the FOV routine and that works as expected.

Currently my game uses PASTEed Images to display the graphics.

I guess what I'm asking is it possible to re-colour the images on the fly before I paste them back to the screen.

Steve.

You can't really do much with just PASTE IMAGE, to add on-the-fly colouring, you'd have to use 3D, to allow the diffuse colour to be set.

Not all bad news though, because all you really need is some alpha transparent blocks, then paste them over the tiles to darken them. You could even have round corner parts if you like, it could be as fancy as you wanted to make it - just paste over each tile with a suitible image for the visibility. Maybe worth having a fog of war, so each tile is flagged as you reveal it, but the visibility still plays it's part...

So for each tile, draw the base tile, then if the tile has been revealed already, draw any items or enemies on that tile. Now, if the tile has not been revealed, paste a 50% transparent block on top of the tile. Then check the distance of the tile to player and use an appropriate transparent image to signify the light level/view.

I'd use the box command (preferably the d3d_box command from Cloggy's d3d plugin) to draw over each part of the map...

Quick example attached:

@Van B - thanks for the explanation, sounds within my grasp of art & coding

@baxslash - thanks for taking the time to put together a demo, that's exactly the finished effect I want.

I'll go away and experiment with both approaches.

Steve.