Custom Animation State Management
While Babylon.js does not include a built-in animation state machine, you can implement one using animation groups and weight blending:
// Simple animation state manager pattern
class AnimationStateManager {
constructor(animationGroups) {
this.animations = new Map();
this.currentState = null;
for (const group of animationGroups) {
this.animations.set(group.name, group);
group.play(true);
group.setWeightForAllAnimatables(0);
}
}
transition(stateName, blendDuration = 0.3) {
const target = this.animations.get(stateName);
if (!target || this.currentState === stateName) return;
// Fade out current, fade in target
if (this.currentState) {
const current = this.animations.get(this.currentState);
current.setWeightForAllAnimatables(0);
}
target.setWeightForAllAnimatables(1);
this.currentState = stateName;
}
}
// Usage
const stateManager = new AnimationStateManager(result.animationGroups);
stateManager.transition("Idle");
// Later: stateManager.transition("Walking");