/
enableBehaviors.js
54 lines (48 loc) · 1.3 KB
/
enableBehaviors.js
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'use strict';
export default function enableBehaviors(sprite) {
sprite.behaviors = [];
Phaser.Utils.mixinPrototype(sprite, behaviorsProto);
sprite.events.onDestroy.addOnce(removeAllBehaviors, sprite);
}
function removeAllBehaviors(sprite) {
for (var i = sprite.behaviors.length - 1; i >= 0; i--) {
var behavior = sprite.behaviors[i];
behavior.removed(sprite);
};
sprite.behaviors.length = 0;
}
var behaviorsProto = {
behave: function(methodName) {
var length = this.behaviors.length;
for (var i = 0; i < length; i++) {
var behavior = this.behaviors[i];
if (!behavior || !behavior.enabled) {
continue;
}
var args = Array.prototype.slice.call(arguments, 1);
if (behavior[methodName]) {
behavior[methodName](this, ...args);
}
}
},
addBehavior: function(behavior) {
this.behaviors.push(behavior);
behavior.added(this);
},
removeBehavior: function(behavior) {
var index = this.behaviors.indexOf(behavior);
if (index === -1) {
return;
}
behavior.removed(this);
this.behaviors.splice(index, 1);
},
setOtherBehaviorsEnabled: function(behavior, enabled) {
enabled = !!enabled;
this.behaviors.forEach(function(b) {
if (b !== behavior) {
b.enabled = enabled;
}
});
}
};