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[ts] Port of fix for tangents at position 0 in PathConstraint. See #1198.

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This commit is contained in:
badlogic 2018-10-26 17:18:05 +02:00
parent 8c55b1b5d0
commit 72d6be6a21
5 changed files with 10814 additions and 10792 deletions
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1
.gitignore vendored
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@ -40,6 +40,7 @@ spine-cocos2dx/example/cocos2d
spine-cocos2dx/example/proj.win32/spine-cocos2d-x.VC.opendb
spine-cocos2dx/example/proj.win32/spine-cocos2d-x.VC.db
xcuserdata/
xcshareddata/
spine-cocos2d-objc/cocos2d/*
spine-cocos2d-objc/spine-cocos2d-iphone-objc.xcodeproj/project.xcworkspace/xcshareddata/

3132
spine-ts/build/spine-webgl.d.ts vendored
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18457
spine-ts/build/spine-webgl.js
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2
spine-ts/build/spine-webgl.js.map
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14
spine-ts/core/src/PathConstraint.ts
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@ -400,13 +400,23 @@ module spine {
addCurvePosition (p: number, x1: number, y1: number, cx1: number, cy1: number, cx2: number, cy2: number, x2: number, y2: number,
out: Array<number>, o: number, tangents: boolean) {
if (p == 0 || isNaN(p)) p = 0.0001;
if (p == 0 || isNaN(p)) {
out[o] = x1;
out[o + 1] = y1;
out[o + 2] = Math.atan2(cy1 - y1, cx1 - x1);
return;
}
let tt = p * p, ttt = tt * p, u = 1 - p, uu = u * u, uuu = uu * u;
let ut = u * p, ut3 = ut * 3, uut3 = u * ut3, utt3 = ut3 * p;
let x = x1 * uuu + cx1 * uut3 + cx2 * utt3 + x2 * ttt, y = y1 * uuu + cy1 * uut3 + cy2 * utt3 + y2 * ttt;
out[o] = x;
out[o + 1] = y;
if (tangents) out[o + 2] = Math.atan2(y - (y1 * uu + cy1 * ut * 2 + cy2 * tt), x - (x1 * uu + cx1 * ut * 2 + cx2 * tt));
if (tangents) {
if (p < 0.001)
out[o + 2] = Math.atan2(cy1 - y1, cx1 - x1);
else
out[o + 2] = Math.atan2(y - (y1 * uu + cy1 * ut * 2 + cy2 * tt), x - (x1 * uu + cx1 * ut * 2 + cx2 * tt));
}
}
getOrder () {