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input.js
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input.js
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let inputDirection = { x: 0, y: 0 };
let lastInputDirection = { x: 0, y: 0 };
window.addEventListener("keydown", (e) => {
switch (e.key) {
case "ArrowUp":
if (lastInputDirection.y != 0) break;
inputDirection = { x: 0, y: -1 };
break;
case "ArrowDown":
if (lastInputDirection.y != 0) break;
inputDirection = { x: 0, y: 1 };
break;
case "ArrowLeft":
if (lastInputDirection.x != 0) break;
inputDirection = { x: -1, y: 0 };
break;
case "ArrowRight":
if (lastInputDirection.x != 0) break;
inputDirection = { x: 1, y: 0 };
break;
}
});
export function getInputDirection() {
lastInputDirection = inputDirection;
return inputDirection;
}