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Fix follower flip/mirror not reflecting on skeleton axis.

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This commit is contained in:
Davide Tantillo 2026-03-17 17:03:32 +01:00
parent f2c07a02ec
commit a20d61ff50
1 changed files with 22 additions and 6 deletions
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28
spine-ts/spine-construct3/src/c3runtime/instance.ts
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@ -848,6 +848,12 @@ class SpineC3Instance extends globalThis.ISDKWorldInstanceBase {
followers.push(follower);
}
const instance = this.runtime.getInstanceByUid(uid) as IWorldInstance;
if (instance) {
if (this.isMirrored) this.mirrorFollower(instance);
if (this.isFlipped) this.flipFollower(instance);
}
this.isPlaying = true;
}
@ -886,9 +892,17 @@ class SpineC3Instance extends globalThis.ISDKWorldInstanceBase {
const { x, y } = matrix.boneToGame(bone);
const boneRotation = bone.applied.getWorldRotationX();
const rotationRadians = boneRotation * Math.PI / 180;
const cos = Math.cos(rotationRadians);
const sin = Math.sin(rotationRadians);
const boneRad = boneRotation * spine.MathUtils.degRad;
const boneCos = Math.cos(boneRad);
const boneSin = Math.sin(boneRad);
const gameDirX = matrix.a * boneCos + matrix.c * boneSin;
const gameDirY = matrix.b * boneCos + matrix.d * boneSin;
const boneGameAngleRad = Math.atan2(gameDirY, gameDirX);
const cos = Math.cos(boneGameAngleRad);
const sin = Math.sin(boneGameAngleRad);
const negateAngle = this.isMirrored !== this.isFlipped;
for (const follower of followers) {
const instance = this.runtime.getInstanceByUid(follower.uid) as IWorldInstance;
@ -900,9 +914,11 @@ class SpineC3Instance extends globalThis.ISDKWorldInstanceBase {
const rotatedOffsetX = follower.offsetX * cos - follower.offsetY * sin;
const rotatedOffsetY = follower.offsetX * sin + follower.offsetY * cos;
instance.x = x + rotatedOffsetX * (this.isMirrored ? -1 : 1);
instance.y = y + rotatedOffsetY * (this.isFlipped ? -1 : 1);
instance.angleDegrees = boneRotation + follower.offsetAngle;
instance.x = x + rotatedOffsetX;
instance.y = y + rotatedOffsetY;
const angle = boneRotation + follower.offsetAngle;
instance.angleDegrees = negateAngle ? -angle : angle;
}
}
}