Make makeBomb(x,y) accept absolute pixel values, not grid position

[flukeout]

This makes it more versatile and then it doesn't have to care about how bit the grid sections are. Should be the case for all particle generating.

[Pomax]

We could pass an x/y grid coordinate with optional px/py pixel offset inside that grid rectangle?

[flukeout]

Yeah, but I think the particle thing has use beyond our game so makes sense to make it less dependent on knowing some kind of grid and offset.

I think also if you pass in an x,y with a width of 50 or 100 - it should just do the offset calculations to center it on x/y by itself. This assumes equal width/height for particles, but that will be the general case I think.

[Pomax]

+1 for centering. We can make a little layer between the game logic and the particles library so that when you call makeParticles(x,y) or something it autoconverts and calls particles.makeParticles(x-in-pixels, y-in-pixels), so that the game logic can keep using grid coordinates but the particle library only has to deal with pixel values

[flukeout]

Yeah sounds good to me. Eventually I'd like to release/offer the particle maker as a standalone thing, so that will be useful. We can make some kinda getPixelsFromGridCoords(x,y) type of function.