向上和向下敵人移動使用翻譯電暈SDK

Question

我想我的鳥兒有一個上下運動，當它在這裏踢球是我的代碼

function updateMons2() 
     for a = 1, mons2.numChildren, 1 do 
     physics.addBody(mons2[a],"kinematic") 
      if(mons2[a].isAlive == true) then 
       (mons2[a]):translate(speed * -1, 0)    

       if(mons2[a].x < -80) then 
        mons2[a].x = 1000 
        mons2[a].y = 500 
        mons2[a].isAlive = false 
       end 
      end 
     end 
    end 

這段代碼不僅會從右到左，我想我的鳥兒當它正在向左和向下移動時，有人可以幫助我嗎？

Answer 1

下面是一個示例。試試這個：

local mons2 = {} 
local yPos = {} 
for i=1,2 do 
    mons2[i] = display.newImageRect("1.png",50,50) 
    mons2[i].x = 100 
    mons2[i].y = 100+(100*(i-1)) 
    mons2[i].isAlive = true 
    yPos[i] = mons2[i].y 
end 

speed = 10 
count_ = 0 
function updateMons2() 
    count_ = count_ + 1 
    for a = 1, 2, 1 do 
    physics.addBody(mons2[a],"kinematic") 
    if(mons2[a].isAlive == true) then 
     mons2[a]:translate(speed * -1, 0) 
     transition.to(mons2[a],{time=50,y=yPos[a]+(20*(count_%2)*-1)}) 
     if(mons2[a].x < -80) then 
      mons2[a].x = 350 
     end 
    end 
    end 
end 
timer.performWithDelay(100,updateMons2,-1) 

保持編碼........... :)