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enum Direction {UP,DOWN,RIGHT,LEFT};
document.onkeydown =(e)=>{
if(e.keyCode == 32){//SPACE
console.log("Game start!");
startGame();
}else if (e.keyCode == 87){ //UP
moveSnake(Direction.UP);
}else if (e.keyCode ==83){ //DOWN
moveSnake(Direction.DOWN);
}else if (e.keyCode ==68){ //RIGHT
moveSnake(Direction.RIGHT);
}else if (e.keyCode ==65){ //LEFT
moveSnake(Direction.LEFT);
}
}
function moveSnake(snakeStep:Direction){
var x,y,z:number;
if(snakeStep ==Direction.UP){
x=y=0, z=1;
}else if (snakeStep==Direction.DOWN){
x=y=0, z=-1;
}else if (snakeStep==Direction.RIGHT){
x=1,y=z=0;
}else if (snakeStep=Direction.LEFT){
x=-1,y,z=0;
}
snake.translate( new Vector3(x,y,z),6,Space.WORLD);
}
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