120 lines
3.4 KiB
JavaScript
120 lines
3.4 KiB
JavaScript
/* player movement logic */
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var currentKey = 0;
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var lastKey = 0;
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var lives = 3;
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function setVars() {
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let player = document.getElementById("player");
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}
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document.onloadend = setVars;
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/*Controls vertical movement*/
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function verticalMovement(keyCode) {
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var playerLeft = player.offsetLeft;
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var playerTop = player.offsetTop;
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switch(keyCode) {
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case 38: /*Up*/
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case 87: /*W*/
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var element = document.elementFromPoint(playerLeft, playerTop-5);
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if (element.classList.contains("sky") == false) { /*change to only trigger when not grass*/
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player.style.top = (playerTop - 5) + "px";
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}
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player.className = "character walk up";
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console.log("Up");
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break;
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case 40: /*Down*/
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case 83: /*S*/
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var element = document.elementFromPoint(playerLeft, playerTop+5);
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if (element.classList.contains("sky") == false) {
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player.style.top = (playerTop + 5) + "px";
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}
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player.className = "character walk down";
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console.log("Down");
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break;
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}
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}
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/*Controls horizontal movement*/
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function horizontalMovement(keyCode) {
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var playerLeft = player.offsetLeft;
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var playerTop = player.offsetTop;
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switch(keyCode) {
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case 37: /*Left*/
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case 65: /*A*/
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var element = document.elementFromPoint(playerLeft-5, playerTop);
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if (element.classList.contains("sky") == false) {
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player.style.left = (playerLeft - 5) + "px";
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}
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player.className = "character walk left";
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console.log("Left");
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break;
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case 39: /*Right*/
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case 68: /*D*/
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var element = document.elementFromPoint(playerLeft+5, playerTop);
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if (element.classList.contains("sky") == false) {
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player.style.left = (playerLeft + 5) + "px";
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}
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player.className = "character walk right";
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console.log("Right");
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break;
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}
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}
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/*Controls movement interval*/
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function move() {
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if (currentKey == 0) {
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verticalMovement(lastKey);
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horizontalMovement(lastKey);
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if (lastKey != 0) {
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currentKey = lastKey;
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}
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}
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else {
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verticalMovement(currentKey);
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horizontalMovement(currentKey);
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}
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}
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/*Gets triggered keystroke*/
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function getKey(event) {
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lastKey = currentKey;
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currentKey = event.keyCode;
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}
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/*Identifies if no keys are pressed*/
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function stop(event) {
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if (currentKey == lastKey) {
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currentKey = 0;
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lastKey = 0;
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}
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else if (event.keyCode == currentKey) {
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currentKey = 0;
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}
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else if (event.keyCode == lastKey) {
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lastKey = 0;
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}
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if (!player.classList.contains("dead")) {
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switch(event.keyCode) {
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case 38: /*Up*/
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case 87: /*W*/
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player.className = "character stand up";
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break;
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case 40: /*Down*/
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case 83: /*S*/
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player.className = "character stand down";
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break;
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case 37: /*Left*/
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case 65: /*A*/
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player.className = "character stand left";
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break;
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case 39: /*Right*/
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case 68: /*D*/
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player.className = "character stand right";
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break;
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}
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}
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} |