隐藏上一个雪碧

Question

我是使用corona创建Android游戏的新手，我正尝试使用下面的代码创建移动的角色。我的问题是移动时会留下精灵标记。我如何隐藏或删除以前的精灵标记？

local start = display.newImage("start.png") 
physics.addBody(start, {friction = 1.0, density = 1.0}) 
start.bodyType = "static" 
start.x = field.contentWidth/2 - 40 
start.y = field.contentHeight/2 
start.isFixedRotation = "true" 

function spriteup() 
    personSpriteSheet = sprite.newSpriteSheet("back.png", 30, 45) 
    personSprite = sprite.newSpriteSet(personSpriteSheet, 1, 4) 
    sprite.add(personSprite, "test", a, a, 1000, 1) 
    person = sprite.newSprite(personSprite) 
    person.x = start.x + 2 
    person.y = start.y 
    person:prepare("test") 

end 

function moveup(self, event) 
    self:applyForce(0, -15, event.x, event.y) 
    spriteup() 
    if a == 4 then 
     a = 0 
    end 
    a =a + 1 
end 

local function listenerup(event) 
    if event.phase == "began" then 
    start.bodyType = "dynamic" 
    start.alpha = 0 
    if a == 4 then 
     a = 0 
    end 
    a = a + 1 
    start.enterFrame = moveup 
    Runtime:addEventListener("enterFrame", start) 
    else 
     Runtime:removeEventListener("enterFrame", start) 
     start.bodyType = "static" 
    end 
    return true 
end 
up:addEventListener("touch", listenerup) 

任何想法将不胜感激。

Answer 1

你试过.remove（人）吗？