我可以爲Corona SDK中的多個對象創建單個碰撞偵聽器嗎？

Question

我正在製作一個遊戲，它會產生多個對象並將它們添加到數組中。我想要做的是有一個偵聽器，當檢測到碰撞時會觸發。我知道如何用單個對象來做到這一點，但我如何創建一個可以與多個對象一起工作的偵聽器？

Answer 1

是的，你可以通過創建一個Global Collision Handling爲了讓你知道這相撞的對象，你可以對對象的實例添加標籤你有三個對象：

local myObject = {} 
--ASSUMING YOU HAVE INITIALIZE THE OBJECTS ALREADY 
--SET THE TAG 
myObject[0].myName = "object0"  
--DO THE SAME WITH THE OTHER OBJECTS 
myObject[1].myName = "object1" 
myObject[2].myName = "object2" 

--Create your collision function 
local function onCollided(event) 
    if(event.phase == "began") then 
     --BEGAN COLLISION 
     --THE BELOW PRINT STATEMENT WILL PRINT WHICH OF THE THREE OBJECTS COLLIDED WITH 
     print("Collision Between ".. event.object1.myName .. " and " .. event.object2.myName) 
    elseif(event.phase == "ended") then 
     --END COLLISION 
    end 
end  

--AND OFCOURSE ADD THE LISTENER 
Runtime:addEventListener("collision", onCollided) 

因爲Docs指出：全局衝突處理最適用於多對多碰撞場景