A library to create, edit and utilize bezier curves in your games.
In your lib directory, create a new folder (if it doesn't already exist)
mkdir plugins
cd plugins
git clone git://github.com/dclowd9901/impactjsBezier.git bezier
This will clone the library to your game.
To get the tools in your editor, go to your weltmeister.html file (usually in your base impact.js directory alongside index.html), then add these two lines to your <head> area:
<script src="lib/plugins/bezier/lodash.js" type="text/javascript" charset="utf-8"></script>
<script src="lib/plugins/bezier/weltmeister.js" type="text/javascript" charset="utf-8"></script>
Assuming everything went well above, go to your weltmeister editor, and when you add a new layer, there should be a new option called "Is Bezier Layer". When chosen, this option will allow you to draw bezier curves anywhere in the canvas area.
I based the tooling on Adobe's Illustrator and Photoshop as much as possible.
Make sure no current bezier points are selected and click anywhere in the drawing area. If a bezier point is selected, and you want to create an entirely new group, press Escape to unselect all.
Select a point from that group and click. The new point will be drawn in between the last point you clicked and the one after it.
Click the point you want to delete and press the Delete or Backspace key. This goes for any selected point.
Click the point you want to move and drag it to the place you want to (kinda duh here).
Click the point whose curve you want to adjust, and pull one of the handles. As a rule, if a point has two neighboring points, it will have two handles, otherwise, it will have only one.
This will also simultaneously adjust the opposite handle.
Press and hold ALT (or Option on Mac) and click and drag the point. This will not affect the opposite handle's position.
Press and hold 'N' (for "nearest") and drag handle. This will move it in 45 Degree increments. You can adjust the increments in the config file.
Even after unselecting a layer as a bezier layer, I don't think it resets it. I have to fix this behavior. There are memory leaks. Sorry in advance. I'm storing the cached curve information, and I normally wouldn't.
The MIT License (MIT)
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