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[lua] Fix 1-bone IK, see #1692.

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badlogic 2020-06-03 17:33:13 +02:00
parent c64e6adbde
commit dcc6925e90
1 changed files with 8 additions and 4 deletions
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12
spine-lua/IkConstraint.lua
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@ -102,10 +102,14 @@ function IkConstraint:apply1 (bone, targetX, targetY, compress, stretch, uniform
tx = targetX - bone.worldX tx = targetX - bone.worldX
ty = targetY - bone.worldY ty = targetY - bone.worldY
elseif bone.data.transformMode == TransformMode.noRotationOrReflection then elseif bone.data.transformMode == TransformMode.noRotationOrReflection then
rotationIK = rotationIK + Math.atan2(pc, pa) * MathUtils.radDeg local s = math_abs(pa * pd - pb * pc) / (pa * pa + pc * pc);
local ps = Math.abs(pa * pd - pb * pc) / (pa * pa + pc * pc) local sa = pa / bone.skeleton.scaleX;
pb = -pc * ps local sc = pc / bone.skeleton.scaleY;
pd = pa * ps pb = -sc * s * bone.skeleton.scaleX;
pd = sa * s * bone.skeleton.scaleY;
rotationIK = rotationIK + math_deg(math_atan2(sc, sa));
local x = targetX - p.worldX local x = targetX - p.worldX
local y = targetY - p.worldY local y = targetY - p.worldY
local d = pa * pd - pb * pc local d = pa * pd - pb * pc