有人可以解釋這一點嗎？ （運動不能正常工作）

Question

我在遊戲中添加了一些東西，這樣當你按下空間時，你會得到一個小的速度提升。但是，只有在使用WASD密鑰時才能正常工作。如果按上下左右方向鍵，增強功能將不起作用，否則會起作用。任何人都可以解釋它爲什麼這樣做？

下面的代碼：

boostTimer += Gdx.graphics.getDeltaTime(); 

    if(boostTimer > 3){ 
    snailBoost = 0; 
    boostTimer = 0; 
    } 

    //movement 
    if(Gdx.input.isKeyPressed(Keys.LEFT) || Gdx.input.isKeyPressed(Keys.A)){ 

     if(Gdx.input.isKeyPressed(Keys.SPACE) && snailBoost < 20){ 
      snailBoost++; 
      snail.getBounds().x -= (snailSpeed + 100) * delta; 
     } 

     //flips the sprite 
     snail.getSprite().setFlip(false, true); 
     snail.getBounds().x -= snailSpeed * delta; 

     //handles what happens when you go outside the game world 
     if(snail.getBounds().x < -100)snail.getBounds().x = 1920; 
    } 

    if(Gdx.input.isKeyPressed(Keys.RIGHT) || Gdx.input.isKeyPressed(Keys.D)){ 

     if(Gdx.input.isKeyPressed(Keys.SPACE) && snailBoost < 20){ 
      snailBoost++; 
      snail.getBounds().x += (snailSpeed + 100) * delta; 
     } 

     snail.getSprite().setFlip(true, true); 
     snail.getBounds().x += snailSpeed * delta; 

     if(snail.getBounds().x > 2020)snail.getBounds().x = -100; 
    } 

    if(Gdx.input.isKeyPressed(Keys.UP) || Gdx.input.isKeyPressed(Keys.W)){ 

     if(Gdx.input.isKeyPressed(Keys.SPACE) && snailBoost < 20){ 
      snailBoost++; 
      snail.getBounds().y -= (snailSpeed + 100) * delta; 
     } 

     snail.getBounds().y -= snailSpeed * delta; 

     if(snail.getBounds().y < -100)snail.getBounds().y = 1080; 
    } 

    if(Gdx.input.isKeyPressed(Keys.DOWN) || Gdx.input.isKeyPressed(Keys.S)){ 

     if(Gdx.input.isKeyPressed(Keys.SPACE) && snailBoost < 20){ 
      snailBoost++; 
      snail.getBounds().y += (snailSpeed + 100) * delta; 
     } 

     snail.getBounds().y += snailSpeed * delta; 

     if(snail.getBounds().y > 1080)snail.getBounds().y = -100; 
    } 

對不起亂碼。 ：P 還是遊戲開發的新手。

Answer 1

便宜的鍵盤共享按鍵的控制線，所以一些按鍵組合將無法正確註冊，並且試圖一次按超過3-4個按鍵將不會發生任何事情。

要麼購買更昂貴的鍵盤，要麼選擇鍵使其工作（如着名的WASD，你已經注意到了作品）。與代碼無關。