Quick Cocos Naja

LocalScheduler =require(CC. Package_name.". Scheduler")LocalMainscene = Class ("Mainscene",function()    returnDisplay.newscene ("Mainscene")End)--equivalent to constructors in C + +functionMainscene:ctor ()--sets the background to white, and this is the layer of the current scene so that touch events can be implemented laterSelf.touchlayer_ = Display.newcolorlayer (cc.c4b (255,255,255,255): AddTo (self)--Add Ninja ElfSelf.player_ = Display.newsprite ("Player.png"): AddTo (Self.touchlayer_) Self.player_:pos (Self.player_:getContentSize (). Width/2, Display.height/2)    --initialize an array of storage darts and enemies (monsters)Self.projectiles_ ={} Self.monsters_= {}    --to add a method for each frame refreshSelf:addnodeeventlistener (CC. Node_enter_frame_event,handler (self, self.update)) self:scheduleupdate ()--Add a method to refresh per secondScheduler.scheduleglobal (function() Self:addmonster ()--methods to invoke per second    End,1)--1 for Time    --Adding Touch EventsSelf.touchLayer_:setTouchEnabled (true) Self.touchLayer_:addNodeEventListener (CC. Node_touch_event,function(Event)ifEvent.name = ="ended"  Thenself:ontouchended (EVENT.X,EVENT.Y)End        return true    End)End--Add EnemiesfunctionMainscene:addmonster ()LocalMonster = Display.newsprite ("Monster.png"): AddTo (Self.touchlayer_)LocalMiny = Monster:getcontentsize (). Height/2    LocalMaxy = Display.height-monster:getcontentsize (). Height/2    LocalRangey = Maxy-MinyLocalActualy =Math.random(Rangey) monster:pos (Display.width+ monster:getcontentsize (). Width/2, actualy)LocalMinduration =2.0    LocalMaxduration =4.0    LocalRangeduration = maxduration-mindurationLocalActualDuration = (Math.random(rangeduration)) Transition.moveto (monster,{x=-monster:getcontentsize (). Width/2, y=actualy, time=actualduration, OnComplete=function(Event)--Delete after execution endsSelf.monsters_[event] =Nilevent:removeself ()End    })    --add data to the monster to deleteSelf.monsters_[monster] =MonsterEndfunctionmainscene:ontouchended (x, y)Print("ontouchended")    LocalLocation =CC.P (x, y)LocalProjectile = Display.newsprite ("Projectile.png"): AddTo (self) projectile:pos ( -, Display.height/2)    Localpx, py =projectile:getposition ()Localoffset =cc.psub (LOCATION,CC.P (px,py))if(Offset.x <=0) Then return End    LocalRealx = Display.width + projectile:getcontentsize (). Width/2    LocalRatio = OFFSET.Y/Offset.xLocalrealy = Realx * ratio +pyLocalRealdest =CC.P (realx,realy)LocalOffrealx = Realx-pxLocalOffrealy = realy-pyLocalLength =math.sqrt(OFFREALX * offrealx + offrealy *offrealy)LocalVelocity =480/1    LocalRealmoveduration = length/Velocity Transition.moveto (projectile,{x=realdest.x, y=Realdest.y, time=realmoveduration, OnComplete=function(event) self.projectiles_[event]=Nilevent:removeself ()End}) Self.projectiles_[projectile]=ProjectileEnd--ask for distance between two pointsLocal functionDist (ax, Ay, bx, by)LocalDX, dy = bx-ax, by-ayreturn math.sqrt(DX * dx + dy *dy)End--Refresh per framefunctionmainscene:update (DT)--Print ("Update")    LocalProjectilestodelete = {}     forK_pro, V_proinch Pairs(Self.projectiles_) Do        LocalMonsterstodelete = {}         forK_mon, V_moninch Pairs(Self.monsters_) Do            Localp_x, p_y =v_pro:getposition ()LocalM_x,m_y =v_mon:getposition ()ifDist (p_x,p_y,m_x,m_y) <= -   ThenMonsterstodelete[v_mon]=V_mon Projectilestodelete[v_pro]=V_proEnd        End         forK_m_d, V_m_dinch Pairs(Monsterstodelete) Do            --local x, y = v_m_d:getposition ()Self.monsters_[v_m_d] =Nilv_m_d:removeself ()EndMonsterstodelete=Nil    End     forK_p_d, V_p_dinch Pairs(Projectilestodelete) DoSelf.projectiles_[v_p_d]=Nilv_p_d:removeself ()EndProjectilestodelete=NilEndfunctionMainscene:onenter ()Endfunctionmainscene:onexit ()EndreturnMainscene

Quick Cocos Naja