我的移动队列出了什么问题 为什么输入会重复？

Question

我正在尝试使用 love2d 制作一个简单的蛇式游戏，但我似乎无法弄清楚我的代码存在什么问题。运行时的错误是角色移动基于队列系统，并且似乎得到了相同输入的支持。非常感谢任何帮助！

love.window.setMode(704,704)



function love.load(arg)
  x = 0
  y = 0

  timer = 0
  points = 0

  moveQueue = {}

  playersize = 32
  screensize = 704

  Applex = love.math.random(0, screensize / playersize) * playersize
  Appley = love.math.random(0, screensize / playersize) * playersize
end





function love.update(dt)

  --Inputs
  if love.keyboard.isDown( "s" ) and moveQueue[2] ~= 's' then
    table.insert(moveQueue, 's')
  end
  if love.keyboard.isDown( "w" ) and moveQueue[2] ~= 'w' then
    table.insert(moveQueue, 'w')
  end
  if love.keyboard.isDown( "a" ) and moveQueue[2] ~= 'a' then
    table.insert(moveQueue, 'a')
  end
  if love.keyboard.isDown( "d" ) and moveQueue[2] ~= 'd' then
    table.insert(moveQueue, 'd')
  end


  timer = timer + dt
    local timerLimit = 0.15
    if timer >= timerLimit then
        timer = timer - timerLimit

          if moveQueue[1] == 'w' and y > 0 then
            y = y - playersize
            table.remove(moveQueue, 1)
          end
          if moveQueue[1] == 's' and y < screensize - playersize then
            y = y + playersize
            table.remove(moveQueue, 1)
          end
          if moveQueue[1] == 'a' and x > 0 then
            x = x - playersize
            table.remove(moveQueue, 1)
          end
          if moveQueue[1] == 'd' and x < screensize - playersize then
            x = x + playersize
            table.remove(moveQueue, 1)
          end


        if x == Applex and y == Appley then
          points = points + 1

          Applex = love.math.random(0, screensize / playersize) * playersize
          Appley = love.math.random(0, screensize / playersize) * playersize

        end



        print('Tick')
    end



end



function love.draw()

  love.graphics.rectangle("fill", x, y, playersize, playersize)

  love.graphics.setColor(255,0,0)

  love.graphics.rectangle("fill", Applex, Appley, playersize, playersize)

  love.graphics.setColor(255,255,255)


end

抱歉读了这么久！

Answer 1

这真的很难知道，因为我不确定你的游戏的功能应该是什么。如果它应该和蛇完全一样，那么你正在做的一些事情我真的很困惑，比如队列。

我做了一些调整，虽然看起来他们稍微改进了它的功能。我使用 elseif 而不是 ifs（一次只能按下一个键）并且我将 table.remove(moveQueue, 1) 从 if 语句中移出（这样每次调用 love.update(dt) 时都会从队列中删除一些东西，不管键是否按下。

我不知道这是否符合您的要求，因为我不确定您的游戏应该如何运行。

love.window.setMode(704,704)

function love.load(arg)
  x = 0
  y = 0
  timer = 0
  points = 0
  moveQueue = {}
  playersize = 32
  screensize = 704

  Applex = love.math.random(0, screensize / playersize) * playersize
  Appley = love.math.random(0, screensize / playersize) * playersize

end


function love.update(dt)

  --Inputs
    if love.keyboard.isDown( "s" ) and moveQueue[2] ~= 's' then
        table.insert(moveQueue, 's')
    elseif love.keyboard.isDown( "w" ) and moveQueue[2] ~= 'w' then
        table.insert(moveQueue, 'w')
    elseif love.keyboard.isDown( "a" ) and moveQueue[2] ~= 'a' then
        table.insert(moveQueue, 'a')
    elseif love.keyboard.isDown( "d" ) and moveQueue[2] ~= 'd' then
        table.insert(moveQueue, 'd')
    end


    timer = timer + dt
    local timerLimit = 0.15
    
    if timer >= timerLimit then
        timer = timer - timerLimit

          if moveQueue[1] == 'w' and y > 0 then
            y = y - playersize
          elseif moveQueue[1] == 's' and y < screensize - playersize then
            y = y + playersize
          elseif moveQueue[1] == 'a' and x > 0 then
            x = x - playersize
          elseif moveQueue[1] == 'd' and x < screensize - playersize then
            x = x + playersize
          end
          table.remove(moveQueue, 1)


        if x == Applex and y == Appley then
          points = points + 1

          Applex = love.math.random(0, screensize / playersize) * playersize
          Appley = love.math.random(0, screensize / playersize) * playersize

        end

        print('Tick')

    end

end


function love.draw()

  love.graphics.rectangle("fill", x, y, playersize, playersize)
  love.graphics.setColor(255,0,0)
  love.graphics.rectangle("fill", Applex, Appley, playersize, playersize)
  love.graphics.setColor(255,255,255)

end