37 lines
1.3 KiB
JavaScript
37 lines
1.3 KiB
JavaScript
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console.log("loading player system");
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const renderPlayer = (entity) => {
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entity.style.left = `${entity.dataset.posX}px`;
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entity.style.top = `${entity.dataset.posY}px`;
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};
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const playerSystem = (engine) => {
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const entity = document.getElementById("player");
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engine("registerEntity", entity);
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const movementRate = 0.5;
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const move = (direction) => (delta, eventData) => {
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let lastPos = [Number(entity.dataset.posX), Number(entity.dataset.posY)];
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switch (direction) {
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case "left":
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entity.dataset.posX = Number(lastPos[0] - (movementRate * delta));
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break;
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case "right":
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entity.dataset.posX = Number(lastPos[0] + (movementRate * delta));
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break;
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case "up":
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entity.dataset.posY = Number(lastPos[1] - (movementRate * delta));
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break;
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case "down":
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entity.dataset.posY = Number(lastPos[1] + (movementRate * delta));
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break;
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}
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renderPlayer(entity);
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};
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engine("subscribeToEvent", "moveLeft", "movePlayerLeft", move("left"));
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engine("subscribeToEvent", "moveRight", "movePlayerRight", move("right"));
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engine("subscribeToEvent", "moveUp", "movePlayerUp", move("up"));
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engine("subscribeToEvent", "moveDown", "movePlayerDown", move("down"));
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};
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