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thecheeselover

[xna] Inverted y axis?

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thecheeselover    565
Hi,

Ive been doing a 2d game in xna 3.1 and I realized that the y axis was inverted. Example 1: A bird is now flying in the ground, but his position is like (x, y).
Example 2: A rock supposed to be in the ground is no flying, but its position is like (x, -y). Negative y is now up, positive y is now down. My camera matrix is ok and all positions are ok. If you need a piece of code, just ask (my application's code is really big, that's why I don't put a piece of it). Do you have any suggestions?

Thanks for reading, thecheeselover

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Buckeye    10747
If you use screen coordinates for your positions, that's how screen coordinates work. The screen origin is in the upper left-hand corner - x=0, y=0. The lower right-hand corner of the screen - x=screen-width, y=screen-height.

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