我应该得到的输出是当我点击右边时小鸡可以向右跳，反之亦然。但是我在这里解决的两个问题是当我点击它时会在控制台输出，就像我点击两次一样。第二个问题是车道是阵列并且保持重叠一切，甚至是作为玩家的小鸡。
为此我包括2个lua文件和3个png。
这是我的main.lua
display.setStatusBar( display.HiddenStatusBar )
local composer = require( "composer" )
print("entering gotoScene")
composer.gotoScene( "game2" )
print("out from gotoScene")
这是我的game2.lua
---REQUIRES
local composer = require( "composer" )
local scene = composer.newScene()
local widget = require( "widget" )
local physics = require "physics"
physics.start()
physics.setGravity(0,0)
local lanes = {}
local laneID = 1
scroll = 2
---SIZE PHONE DECLARATION
local screenW = display.contentWidth --640
local screenH = display.contentHeight --1136
local halfX = display.contentWidth * 0.5 --half width 320
local halfY = display.contentHeight * 0.5 --half height 568
----------------------
----------------------
---WHEN TAP CHICK MOVE
local function tapListener( event )
local object = event.target
if object.name == "Right Side" then
print( object.name.." TAPPED!" )
if laneID < 3 then
laneID = laneID + 1;
transition.to(chick, {x=lanes[laneID].x,time=50})
print( "At lane "..laneID.." to the right")
end
return true
end
if object.name == "Left Side" then
print( object.name.." TAPPED!" )
if laneID > 1 then
laneID = laneID - 1;
transition.to(chick, {x=lanes[laneID].x,time=50})
print( "At lane "..laneID.." to the left")
end
return true
end
end
----------------------
---CREATE
-- Initialize the scene here.
-- Example: add display objects to "sceneGroup", add touch listeners, etc.
function scene:create( )
local group = self.view
---TAP BACKGROUND
RightSide = display.newRect(500,halfY, halfX+50, screenH + 100 )
RightSide.alpha = 0.1
RightSide.name = "Right Side"
LeftSide = display.newRect(140, halfY,halfX+50, screenH + 100)
LeftSide.alpha = 0.1
LeftSide.name = "Left Side"
----------------------
---TAP LABEL
rightLabel = display.newText({ text = "", x = 0, y = 0 , fontSize = 50 } )
rightLabel:setTextColor( 0 ) ; rightLabel.x = 500 ;rightLabel.y = halfY
leftLabel = display.newText({ text = "", x = 0, y = 0, fontSize = 50 } )
leftLabel:setTextColor( 0 ) ; leftLabel.x = 150 ; leftLabel.y = halfY
----------------------
---PATHWAY (BACKGROUND)
path1 = display.newImageRect("road.png",screenW,screenH)
path1.x = halfX
path1.y = halfY
path2 = display.newImageRect("road.png",screenW,screenH)
path2.x = halfX
path2.y = halfY - screenH
----------------------
---LANES
for i=1,3 do -- loop 3 times to create 3 lanes for our game
--myGroup=display.newGroup()
laneimg = display.newImageRect("lanesroad.png", 150, 1300)
lanes[i] = laneimg
lanes[i].x = (display.contentCenterX - 140*2) + (i*140)
lanes[i].y = display.contentCenterY
lanes[i].id = i
end
----------------------
---CHICK
chick = display.newImageRect("chick.png",100,100)
chick.anchorY = 1
chick.x = lanes[2].x
chick.y = 1000
physics.addBody(chick)
chick.bodyType = "dynamic"
----------------------
path1:toBack();
path2:toBack();
group:insert( RightSide )
group:insert( LeftSide )
group:insert( rightLabel )
group:insert( leftLabel )
group:insert( laneimg)
group:insert( chick )
end
----------------------
---BACKGROUND SCROLL
function pathScroll (self,event)
path1.y = path1.y + scroll
path2.y = path2.y + scroll
if path1.y == screenH * 1.5 then
path1.y = screenH * -.5
end
if path2.y == screenH * 1.5 then
path2.y = screenH * -.5
end
end
----------------------
---SHOW --that will show in scene
function scene:show (event)
---FOR ROAD TO SCROLL
path1.enterFrame = pathScroll
Runtime:addEventListener("enterFrame", pathScroll)
path2.enterFrame = pathScroll
Runtime:addEventListener("enterFrame", pathScroll)
----------------------
---WHEN TAP TO RIGHT
RightSide:addEventListener( "tap", tapListener )
rightLabel.text = "right"
----------------------
---WHEN TAP TO LEFT
LeftSide:addEventListener( "tap", tapListener )
leftLabel.text = "left"
----------------------
end
----------------------
---HIDE
function scene:hide (event)
end
----------------------
scene:addEventListener( "create", scene )
scene:addEventListener( "show", scene )
scene:addEventListener( "hide", scene )
return scene
答案 0 :(得分：1)
方法scene:show被调用两次。一旦event.phase参数等于will，第二次event.phase参数等于did。它也适用于scene.hide方法。下面的代码检查。
在botom中我放置了来自Corona documentation的场景模板。它可以用作新场景的起点。
我评论了Runtime:addEventListener("enterFrame", pathScroll)。你有两个，但一个就足够了。
您通过这些链接找到的更多信息
尝试（测试）
...
---SHOW --that will show in scene
function scene:show (event)
local phase = event.phase
if ( phase == 'will' ) then
elseif ( phase == 'did' ) then
---FOR ROAD TO SCROLL
path1.enterFrame = pathScroll
Runtime:addEventListener("enterFrame", pathScroll)
path2.enterFrame = pathScroll
--Runtime:addEventListener("enterFrame", pathScroll)
----------------------
---WHEN TAP TO RIGHT
RightSide:addEventListener( "tap", tapListener )
rightLabel.text = "right"
----------------------
---WHEN TAP TO LEFT
--LeftSide:addEventListener( "tap", tapListener )
leftLabel.text = "left"
----------------------
end
end
----------------------
...
场景模板
local composer = require( "composer" )
local scene = composer.newScene()
-- -----------------------------------------------------------------------------------
-- Code outside of the scene event functions below will only be executed ONCE unless
-- the scene is removed entirely (not recycled) via "composer.removeScene()"
-- -----------------------------------------------------------------------------------
-- -----------------------------------------------------------------------------------
-- Scene event functions
-- -----------------------------------------------------------------------------------
-- create()
function scene:create( event )
local sceneGroup = self.view
-- Code here runs when the scene is first created but has not yet appeared on screen
end
-- show()
function scene:show( event )
local sceneGroup = self.view
local phase = event.phase
if ( phase == "will" ) then
-- Code here runs when the scene is still off screen (but is about to come on screen)
elseif ( phase == "did" ) then
-- Code here runs when the scene is entirely on screen
end
end
-- hide()
function scene:hide( event )
local sceneGroup = self.view
local phase = event.phase
if ( phase == "will" ) then
-- Code here runs when the scene is on screen (but is about to go off screen)
elseif ( phase == "did" ) then
-- Code here runs immediately after the scene goes entirely off screen
end
end
-- destroy()
function scene:destroy( event )
local sceneGroup = self.view
-- Code here runs prior to the removal of scene's view
end
-- -----------------------------------------------------------------------------------
-- Scene event function listeners
-- -----------------------------------------------------------------------------------
scene:addEventListener( "create", scene )
scene:addEventListener( "show", scene )
scene:addEventListener( "hide", scene )
scene:addEventListener( "destroy", scene )
-- -----------------------------------------------------------------------------------
return scene