How do I use a Sprite Map in Love?

enderspike · Post by **enderspike** » Tue Oct 11, 2011 6:47 pm

Hello,

I am new to both Love and programming in general, and I am trying to learn the basics of game programming. Today's project is sprites. How does one make a sprite do what it is supposed to in Love? I know there is a thing called a "spritemap" (I have one for good ol' Crono) and I know there is a Love object called a SpriteBatch. I am also vaguely aware that there are external programs that somehow manipulate Sprite Maps. How can I combine these things is such a way that I can make Crono walk in place, etc? My plan is just to make a program with dude at the center of the screen, doing what I tell him in place. Any and all help is appreciated.

Robin · Post by **Robin** » Tue Oct 11, 2011 7:00 pm

You probably want Quads, not SpriteBatches. Quads are like viewports on an image, so useful for animations and sprite maps.

enderspike · Post by **enderspike** » Tue Oct 11, 2011 7:25 pm

Excellent! Any pointers on using those?

Robin · Post by **Robin** » Tue Oct 11, 2011 7:29 pm

I'll leave that one to someone else with more experience in this area.

kraftman · Post by **kraftman** » Tue Oct 11, 2011 7:49 pm

enderspike wrote:Excellent! Any pointers on using those?

The wiki explains it fairly well, just make sure you are using love.graphics.newQuad and not love.graphics.quad. Then use love.graphics.drawq to draw the quad.

enderspike · Post by **enderspike** » Tue Oct 11, 2011 8:35 pm

Bad ass. Progress is being made! Now, how do I know which co-ordinate is what in the image? Like, how do I figure out what numbers to put in to get the part of the map I want?

enderspike · Post by **enderspike** » Tue Oct 11, 2011 8:43 pm

Sub-question: do I have to cut out every single image I want to use as a quad?

kraftman · Post by **kraftman** » Tue Oct 11, 2011 8:45 pm

enderspike wrote:Bad ass. Progress is being made! Now, how do I know which co-ordinate is what in the image? Like, how do I figure out what numbers to put in to get the part of the map I want?

What I did was to modify the function so that coordinates are relative, so that 0 is left, 1.0 is right, etc, regardless of the image size. The only problem with this is you'd need to know which image the quad is being applied to.

enderspike · Post by **enderspike** » Tue Oct 11, 2011 8:50 pm

How do I do that?

This is the image: (couldn't upload it): http://www.google.com/imgres?um=1&hl=en ... 29,r:1,s:0

Taehl · Post by **Taehl** » Tue Oct 11, 2011 9:44 pm

Well... To be honest, that sprite sheet would be a pain in the butt to work with, since the sprites aren't evenly sized or spaced...

How do I use a Sprite Map in Love?

How do I use a Sprite Map in Love?

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