diff --git a/spine-c/spine-c/src/spine/AnimationState.c b/spine-c/spine-c/src/spine/AnimationState.c index 23375ac96..941f7b895 100644 --- a/spine-c/spine-c/src/spine/AnimationState.c +++ b/spine-c/spine-c/src/spine/AnimationState.c @@ -673,18 +673,21 @@ void _spAnimationState_applyRotateTimeline(spAnimationState *self, spTimeline *t lastTotal = 0; lastDiff = diff; } else { - lastTotal = timelinesRotation[i]; /* Angle and direction of mix, including loops. */ - lastDiff = timelinesRotation[i + 1]; /* Difference between bones. */ + lastTotal = timelinesRotation[i]; + lastDiff = timelinesRotation[i + 1]; } - current = diff > 0; - dir = lastTotal >= 0; - /* Detect cross at 0 (not 180). */ - if (SIGNUM(lastDiff) != SIGNUM(diff) && ABS(lastDiff) <= 90) { - /* A cross after a 360 rotation is a loop. */ - if (ABS(lastTotal) > 180) lastTotal += 360 * SIGNUM(lastTotal); - dir = current; - } - total = diff + lastTotal - FMOD(lastTotal, 360); /* Store loops as part of lastTotal. */ + float loops = lastTotal - FMOD(lastTotal, 360); + total = diff + loops; + int current = diff >= 0, dir = lastTotal >= 0; + if (ABS(lastDiff) <= 90 && SIGNUM(lastDiff) != SIGNUM(diff)) { + if (ABS(lastTotal - loops) > 180) { + total += 360 * SIGNUM(lastTotal); + dir = current; + } else if (loops != 0) + total -= 360 * SIGNUM(lastTotal); + else + dir = current; + } if (dir != current) total += 360 * SIGNUM(lastTotal); timelinesRotation[i] = total; }