CollisionManager Class

Module: cc Parent Module: cc

A simple collision manager class. It will calculate whether the collider collides other colliders, if collides then call the callbacks.

Examples
// Get the collision manager.
let manager = cc.director.getCollisionManager();

// Enabled the colider manager.
manager.enabled = true;

// Enabled draw collider
manager.enabledDebugDraw = true;

// Enabled draw collider bounding box
manager.enabledDrawBoundingBox = true;


// Collision callback
onCollisionEnter: function (other, self) {
    this.node.color = cc.Color.RED;
    this.touchingNumber ++;

    // let world = self.world;
    // let aabb = world.aabb;
    // let preAabb = world.preAabb;
    // let m = world.matrix;

    // for circle collider
    // let r = world.radius;
    // let p = world.position;

    // for box collider and polygon collider
    // let ps = world.points;
},

onCollisionStay: function (other, self) {
    console.log('on collision stay');
},

onCollisionExit: function (other, self) {
    this.touchingNumber --;
    if (this.touchingNumber === 0) {
        this.node.color = cc.Color.WHITE;
    }
}

Index

Properties
Methods
  • hasEventListener Checks whether the EventTarget object has any callback registered for a specific type of event.
  • on Register an callback of a specific event type on the EventTarget.
  • off Removes the listeners previously registered with the same type, callback, target and or useCapture,...
  • targetOff Removes all callbacks previously registered with the same target (passed as parameter).
  • once Register an callback of a specific event type on the EventTarget,...
  • emit Trigger an event directly with the event name and necessary arguments.
  • dispatchEvent Send an event with the event object.

Details

Properties

enabled
meta description
Type Boolean
Defined in cocos2d/core/collider/CCCollisionManager.js:120
enabledDrawBoundingBox
meta description
Type Boolean
Defined in cocos2d/core/collider/CCCollisionManager.js:128
enabledDebugDraw
meta description
Type Boolean
Defined in cocos2d/core/collider/CCCollisionManager.js:462

Methods

hasEventListener

Checks whether the EventTarget object has any callback registered for a specific type of event.

meta description
Returns Boolean
Defined in cocos2d/core/event/event-target.js:68
Parameters
  • type String The type of event.
on

Register an callback of a specific event type on the EventTarget. This type of event should be triggered via emit.

meta description
Returns Function
Defined in cocos2d/core/event/event-target.js:76
Parameters
  • type String A string representing the event type to listen for.
  • callback Function The callback that will be invoked when the event is dispatched.
                           The callback is ignored if it is a duplicate (the callbacks are unique).
    
    • arg1 Any arg1
    • arg2 Any arg2
    • arg3 Any arg3
    • arg4 Any arg4
    • arg5 Any arg5
  • target Object The target (this object) to invoke the callback, can be null
Examples
eventTarget.on('fire', function () {
    cc.log("fire in the hole");
}, node);
off

Removes the listeners previously registered with the same type, callback, target and or useCapture, if only type is passed as parameter, all listeners registered with that type will be removed.

meta description
Defined in cocos2d/core/event/event-target.js:116
Parameters
  • type String A string representing the event type being removed.
  • callback Function The callback to remove.
  • target Object The target (this object) to invoke the callback, if it's not given, only callback without target will be removed
Examples
// register fire eventListener
var callback = eventTarget.on('fire', function () {
    cc.log("fire in the hole");
}, target);
// remove fire event listener
eventTarget.off('fire', callback, target);
// remove all fire event listeners
eventTarget.off('fire');
targetOff

Removes all callbacks previously registered with the same target (passed as parameter). This is not for removing all listeners in the current event target, and this is not for removing all listeners the target parameter have registered. It's only for removing all listeners (callback and target couple) registered on the current event target by the target parameter.

meta description
Defined in cocos2d/core/event/event-target.js:150
Parameters
  • target Object The target to be searched for all related listeners
once

Register an callback of a specific event type on the EventTarget, the callback will remove itself after the first time it is triggered.

meta description
Defined in cocos2d/core/event/event-target.js:163
Parameters
  • type String A string representing the event type to listen for.
  • callback Function The callback that will be invoked when the event is dispatched.
                           The callback is ignored if it is a duplicate (the callbacks are unique).
    
    • arg1 Any arg1
    • arg2 Any arg2
    • arg3 Any arg3
    • arg4 Any arg4
    • arg5 Any arg5
  • target Object The target (this object) to invoke the callback, can be null
Examples
eventTarget.once('fire', function () {
    cc.log("this is the callback and will be invoked only once");
}, node);
emit

Trigger an event directly with the event name and necessary arguments.

meta description
Defined in cocos2d/core/event/event-target.js:200
Parameters
  • type String event type
  • arg1 Any First argument
  • arg2 Any Second argument
  • arg3 Any Third argument
  • arg4 Any Fourth argument
  • arg5 Any Fifth argument
Examples
eventTarget.emit('fire', event);
eventTarget.emit('fire', message, emitter);
dispatchEvent

Send an event with the event object.

meta description
Defined in cocos2d/core/event/event-target.js:220
Parameters

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