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event.phase事件階段


Description:

Specifies the collision phase and can be one of the following values:
指定碰撞階段，可以是以下值：


"began" -- Indicates a collision between two bodies has started initial contact.
"ended" -- Indicates a collision between two bodies has completed.
“開始“- 表示這兩個機構之間的碰撞已經開始初步接觸。
“結束“- 表示這兩個機構之間的碰撞已經完成。


Syntax:


event.phase


Example:
--------------------------------
local crate1 = display.newImage( "crate.png", 100, 200 )
physics.addBody( crate1, { density = 1.0, friction = 0.3, bounce = 0.2 } )
crate1.myName = "first crate"
 
local crate2 = display.newImage( "crate.png", 100, 120 )
physics.addBody( crate2, { density = 1.0, friction = 0.3, bounce = 0.2 } )
crate2.myName = "second crate"
 
local function onCollision( event )
        if ( event.phase == "began" ) then
 
                print( "began: " .. event.object1.myName .. " & " .. event.object2.myName )
 
        elseif ( event.phase == "ended" ) then
 
                print( "ended: " .. event.object1.myName .. " & " .. event.object2.myName )
 
        end
end
 
Runtime:addEventListener( "collision", onCollision )
---------------------------------


Parameters:
None.


Returns:
Nothing.


Remarks:
Note: The objects involved in the collision should not be removed or any of it's properties altered during a collision event. You should use timer.performWithDelay() if they want to modify object position values or other properties within the collision events.
注：參與的對象碰撞不應刪除或它的任何屬性的改變在發生碰撞時。您應該使用timer.performWithDelay（）如果他們想修改對象位置值或其他財產在碰撞事件。


Removing the object or modifying the properties in the collision event could cause the simulator to crash.
刪除或修改對象的屬性在發生碰撞時可能會導致模擬器崩潰。


Supported on operating systems and platforms for build numbers shown:


Mac OS X:Build 2010.222
Windows: Build 2010.222
iOS: Build 2010.222
Android: Build 2010.222
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