Linking/merging drawings

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citrus_psyche
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Joined: Sun Oct 26, 2014 2:49 pm

Linking/merging drawings

Post by citrus_psyche »

Hi guys,

I've just started working with LOVE and I have one small question.

Is it possible to draw multiple objects as one? For example, instead of doing
love.graphics.rectangle( "fill", x1, y1, width1, height1)
love.graphics.rectangle( "fill", x2, y2, width2, height2),
I want to draw both rectangle with just one line of code, by pre-defining them somehow, like
double_rectangle = rectangle1 + rectangle2
draw double_rectangle
I'm asking because I'm working with multiple stacked rectangles of different transparencies and drawing them every frame is very CPU-intensive.

Hope you can help!
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DaedalusYoung
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Joined: Sun Jul 14, 2013 8:04 pm

Re: Linking/merging drawings

Post by DaedalusYoung »

If they're static, you can draw them to a Canvas, then draw the Canvas to screen.
caldur
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Joined: Tue Mar 13, 2012 3:30 pm

Re: Linking/merging drawings

Post by caldur »

Love doesn't have a built-in "shape batch" so to speak, but you can use Mesh to pack the vertices and draw them with one draw call... requires a little extra work though.
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Plu
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Joined: Fri Mar 15, 2013 9:36 pm

Re: Linking/merging drawings

Post by Plu »

You can also wrap them into a function, and call that for the actual drawing.
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