Add rotation support for Quad and Sprite #133
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effect, sprite and quad positions are now anchored at the center of the sprite/quad. Updated all ui widgets and examples to work with the new anchor point. Updated the image.rs example to include a panel since I needed to make sure I hadn't changed its behavior.
rotation fields for sprites and quads.
progress bar for top left corner anchoring
and reverted change to test/graphics.rs
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Just added a few more commits that move the anchor point back to the top left corner and revert most of the changes I made to the UI renderers as a consequence of the anchor point moving. |
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I would like to see this merged aswell. Most games use this feature. |
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Added support for rotating individual Quads and Sprites as mentioned in #1. As a side effect, this ended up moving the anchor point for positions to the center of the Sprite/Quad since the Sprites needed to be centered on the origin before they could be rotated. In my opinion, this behavior is often preferable anyway, but I realize it's subjective. I can try to figure out a way to apply the rotation without moving changing the way sprite positioning works if desired, but I'm far from an expert on transformation matrices.
#1 mentioned concerns that adding rotation support would negatively impact performance. I did not add any benchmarks, but anecdotally testing with the particles example did not show any significant difference with or without the change.