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這是我的代碼。我在做一個3車道的賽車遊戲。這是屏幕截圖。爲什麼發生碰撞時與其他物體沒有任何接觸？ （Corona SDK作曲家）
與任何其他的車我要到restart.lua文件的紅旗轎車相撞，其中在我回來的game.lua文件屏幕的龍頭（代碼如下所示）。當控制權從restart.lua移回game.lua時，會出現問題。
會發生什麼事情是碰撞事件發生的原因沒有任何原因造成遊戲連續故障和重新啓動和game.lua之間轉移。有誰知道爲什麼會發生這種情況，以及如何停止？
local composer = require("composer")
local scene = composer.newScene()
local pix=0
local no=0
local physics=require "physics"
physics.start()
local x=2000
local prevP=0
local prevS=5
local count=1
-- -----------------------------------------------------------------------------------------------------------------
-- All code outside of the listener functions will only be executed ONCE unless "composer.removeScene()" is called
-- -----------------------------------------------------------------------------------------------------------------
-- Local forward references should go here
-- -------------------------------------------------------------------------------
local opp1
local opp
local sceneGroup
local roadCopy
local road
local car
function removeAllListeners(self)
self._functionListeners = nil
self._tableListeners = nil
end
local function touchScreen(event)
print("touchScreen")
if event.x < dw/2 then
if car.current==car.posB then
car.x=car.posA
car.current=car.posA
elseif car.current == car.posC then
car.x=car.posB
car.current=car.posB
end
else
if car.current==car.posB then
car.x=car.posC
car.current=car.posC
elseif car.current == car.posA then
car.x=car.posB
car.current=car.posB
end
end
end
local function removeListeners()
removeAllListeners(road)
removeAllListeners(roadCopy)
removeAllListeners(opp)
removeAllListeners(car)
road:removeEventListener("tap",touchScreen)
roadCopy:removeEventListener("tap",touchScreen)
car:removeEventListener("collision",onLocalCollision)
composer.removeScene("game")
composer.gotoScene("restart")
end
function onLocalCollision(event)
print("collision")
removeListeners()
end
local function moveRoad(self,event)
if self.y > dh-20 then
self.y=20
pix=pix+10
if pix > 100 then
road.speed=road.speed+1
roadCopy.speed=roadCopy.speed+1
pix=0
else
end
else
self.y=self.y+self.speed
pix=pix+1
if pix > 100 then
road.speed=road.speed+1
roadCopy.speed=roadCopy.speed+1
pix=0
else
end
end
if road.speed>30 or roadCopy.speed>30 then
road.speed=30
roadCopy.speed=30
end
end
local function moveoppcar(self, event)
--to move the incoming cars
if(self.y==nil)then
return
end
if(self.y>dh) then
Runtime:removeEventListener("enterFrame", self)
self:removeSelf()
self=nil
randomobject1()
else
self.y=self.y+self.speed+roadCopy.speed
end
end
function randomobject1(event)
--to randomly generate the incoming cars
math.randomseed(os.time())
opp=display.newRect(center-dw/4.75, 30, dw/8, dw/4.5)
local position = math.random(1, 3)
local cartype = math.random(1, 3)
if(position==prevP) then
position=(prevP+2)%3
end
if position==1 then
opp.x=center-dw/4.75
end
if position == 2 then
opp.x=center
end
if position == 3 then
opp.x=center+dw/4.75
end
if cartype == 1 then
opp.fill={type="image", filename="car_green_1.png"}
end
if cartype == 2 then
opp.fill={type="image", filename="car_blue_1.png"}
end
if cartype == 3 then
opp.fill={type="image", filename="car_red_1.png"}
end
opp.speed=math.random(1,10)
sceneGroup:insert(opp)
prevP=position
prevS=opp.speed
local r=opp.width
physics.addBody(opp,"static",{density=1, bounce=0.1, friction=0.2,radius=5})
opp.gravityScale=0
opp.enterFrame=moveoppcar
Runtime:addEventListener("enterFrame", opp)
end
-- "scene:create()"
function scene:create(event)
print("Scene:create")
sceneGroup = self.view
---------ROAD---------
road=display.newRect(0, 0, dw, dh)
road.fill={type="image",filename="road.png"}
road.anchorX,road.anchorY=0,0
road.contentHeight=dh
sceneGroup:insert(road)
road.speed=5
roadCopy=display.newRect(0, 0, dw, dh)
roadCopy.fill={type="image",filename="road.png"}
roadCopy.anchorX,roadCopy.anchorY=0,1
roadCopy.contentHeight=dh
sceneGroup:insert(roadCopy)
roadCopy.speed=5
----PLAYER CAR--------
car=display.newRect(dw/2, dh-10, dw/8, dw/4.5)
car.fill={type="image", filename="player.png"}
car.anchorY=1
center=dw/2
car.posA=center-dw/4.75
car.posB=center
car.posC=center+dw/4.75
car.current=car.posB
sceneGroup:insert(car)
physics.addBody(car,"dynamic",{density=1, bounce=0.1, friction=0.2})
car.gravityScale=0
--[[randomobject1()
randomobject1()]]
end
-- "scene:show()"
function scene:show(event)
if(event.phase=="did") then
print("Scene:show")
addList()
randomobject1()
randomobject1()
end
end
function addList()
--adding event listeners
car.collision = onLocalCollision
car:addEventListener("collision", car)
road.enterFrame=moveRoad
Runtime:addEventListener("enterFrame", road)
roadCopy.enterFrame=moveRoad
Runtime:addEventListener("enterFrame", roadCopy)
road:addEventListener("tap",touchScreen)
roadCopy:addEventListener("tap",touchScreen)
end
-- "scene:hide()"
function scene:hide(event)
print("Scene:hide")
local sceneGroup = self.view
local phase = event.phase
if (phase == "will") then
-- Called when the scene is on screen (but is about to go off screen)
-- Insert code here to "pause" the scene
-- Example: stop timers, stop animation, stop audio, etc.
elseif (phase == "did") then
-- Called immediately after scene goes off screen
end
end
-- "scene:destroy()"
function scene:destroy(event)
print("Scene:destroy")
local sceneGroup = self.view
-- Called prior to the removal of scene's view
-- Insert code here to clean up the scene
-- Example: remove display objects, save state, etc.
end
-- -------------------------------------------------------------------------------
-- Listener setup
scene:addEventListener("create", scene)
scene:addEventListener("show", scene)
scene:addEventListener("hide", scene)
scene:addEventListener("destroy", scene)
-- -------------------------------------------------------------------------------
return scene