碰撞检测

    local conListener = cc.EventListenerPhysicsContact:create()
    conListener:registerScriptHandler(function (contact)
        -- body
        local node1 = contact:getShapeA():getBody():getNode()
        local node2 = contact:getShapeB():getBody():getNode()
        print("node contacted name EVENT_PHYSICS_CONTACT_BEGIN")
        print(node1:getName())
        print(node2:getName())
        return true
    end, cc.Handler.EVENT_PHYSICS_CONTACT_BEGIN )

    conListener:registerScriptHandler(function (contact)
        -- body
        local node1 = contact:getShapeA():getBody():getNode()
        local node2 = contact:getShapeB():getBody():getNode()
        print("node contacted name EVENT_PHYSICS_CONTACT_PRESOLVE")
        print(node1:getName())
        print(node2:getName())
    end, cc.Handler.EVENT_PHYSICS_CONTACT_PRESOLVE )

    conListener:registerScriptHandler(function (contact)
        -- body
        local node1 = contact:getShapeA():getBody():getNode()
        local node2 = contact:getShapeB():getBody():getNode()
        print("node contacted name EVENT_PHYSICS_CONTACT_POSTSOLVE")
        print(node1:getName())
        print(node2:getName())
    end, cc.Handler.EVENT_PHYSICS_CONTACT_POSTSOLVE )

    conListener:registerScriptHandler(function (contact)
        -- body
        local node1 = contact:getShapeA():getBody():getNode()
        local node2 = contact:getShapeB():getBody():getNode()
        print("node contacted name EVENT_PHYSICS_CONTACT_SEPARATE")
        print(node1:getName())
        print(node2:getName())
        return true
    end, cc.Handler.EVENT_PHYSICS_CONTACT_SEPARATE )


    cc.Director:getInstance():getEventDispatcher():addEventListenerWithSceneGraphPriority(conListener, scene)