226 lines
7.0 KiB
JavaScript
Executable File
226 lines
7.0 KiB
JavaScript
Executable File
// Customize Array to be use as coordinates
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Object.defineProperties(Array.prototype, {
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"x": {
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get: function() { return this[0] },
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set: function(x) { this[0] = x }
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},
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"y": {
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get: function() { return this[1] },
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set: function(y) { this[1] = y }
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}
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})
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Array.prototype.plus = function (other) {
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return this.map((x, i) => x + other[i]);
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};
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const DIRECTION = {
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'BAS': 0,
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'GAUCHE': 1,
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'DROITE': 2,
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'HAUT': 3,
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};
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const MOUVEMENT = {
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'ARRET': [0, 0],
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'BAS': [0, 1],
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'HAUT': [0, -1],
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'GAUCHE': [-1, 0],
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'DROITE': [1, 0],
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};
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const ACTIONS = {
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'ArrowUp' : { 'direction': DIRECTION.HAUT, 'mouvement': MOUVEMENT.HAUT },
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'z' : { 'direction': DIRECTION.HAUT, 'mouvement': MOUVEMENT.HAUT },
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'ArrowDown' : { 'direction': DIRECTION.BAS, 'mouvement': MOUVEMENT.BAS },
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's' : { 'direction': DIRECTION.BAS, 'mouvement': MOUVEMENT.BAS },
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'ArrowLeft' : { 'direction': DIRECTION.GAUCHE, 'mouvement': MOUVEMENT.GAUCHE },
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'q' : { 'direction': DIRECTION.GAUCHE, 'mouvement': MOUVEMENT.GAUCHE },
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'ArrowRight': { 'direction': DIRECTION.DROITE, 'mouvement': MOUVEMENT.DROITE },
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'd' : { 'direction': DIRECTION.DROITE, 'mouvement': MOUVEMENT.DROITE },
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};
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const TYPE = {
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'MUR': 1,
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'SOL': 2,
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'PAS': 3,
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};
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const DIRECTIONS_LABYRINTHE = [MOUVEMENT.BAS, MOUVEMENT.HAUT, MOUVEMENT.GAUCHE, MOUVEMENT.DROITE];
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const TAILLE_TUILE = 15;
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function dessinerTuile(context, image, x, y) {
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context.drawImage(image, TAILLE_TUILE * x, TAILLE_TUILE * y);
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}
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class Labyrinthe extends Array {
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constructor(largeur, hauteur, context, tuiles) {
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super();
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this.hauteur = hauteur;
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this.largeur = largeur;
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this.context = context;
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this.tuiles = tuiles;
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for (var ligne = 0; ligne < hauteur; ligne++) {
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this.push(Array(largeur).fill(TYPE.MUR));
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}
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this.positionInitiale = [1, 1];
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this.positionFinale = [largeur - 2, hauteur - 2];
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this.creuse(this.positionFinale);
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this.construit(this.positionFinale);
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}
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construit(position) {
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for (var direction of Array.from(DIRECTIONS_LABYRINTHE).sort(x => 0.5 - Math.random())) {
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var pas1 = position.plus(direction);
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var pas2 = pas1.plus(direction);
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if (this.type(pas2) == TYPE.MUR) {
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this.creuse(pas1);
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this.creuse(pas2);
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this.construit(pas2);
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}
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}
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}
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creuse(position) {
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this[position.y][position.x] = TYPE.SOL;
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}
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type(position) {
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if (
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0 <= position.x &&
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position.x < this.largeur &&
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0 <= position.y &&
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position.y < this.hauteur
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) {
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return this[position.y][position.x];
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} else {
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return -1;
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}
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}
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dessiner() {
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this.forEach((ligne, y) => {
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ligne.forEach((type, x) => {
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dessinerTuile(this.context, this.tuiles[type], x, y);
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});
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});
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}
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}
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class Souris {
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constructor(position, context, sprites) {
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this.position = position;
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this.context = context;
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this.sprites = sprites;
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this.futurePosition = this.position;
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this.direction = DIRECTION.DROITE;
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this.mouvement = MOUVEMENT.ARRET;
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this.tailleSprite = 48;
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this.animationSprite = 0;
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this.animation = 0;
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}
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bouger(touche, labyrinthe) {
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if (touche in ACTIONS) {
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this.direction = ACTIONS[touche].direction;
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this.mouvement = ACTIONS[touche].mouvement;
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var futurePosition = this.position.plus(this.mouvement);
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if ([TYPE.SOL, TYPE.PAS].includes(labyrinthe.type(futurePosition))) {
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labyrinthe[this.position.y][this.position.x] = TYPE.PAS;
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this.futurePosition = futurePosition;
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return true;
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} else {
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this.mouvement = MOUVEMENT.ARRET;
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this.animation = 0;
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return false;
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}
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} else {
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return False;
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}
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}
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dessiner() {
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this.context.drawImage(
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this.sprites,
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this.tailleSprite * this.animationSprite,
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this.tailleSprite * this.direction,
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this.tailleSprite,
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this.tailleSprite,
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TAILLE_TUILE * this.position.x - 17 + this.mouvement.x * this.animation,
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TAILLE_TUILE * this.position.y - 12 + this.mouvement.y * this.animation,
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this.tailleSprite,
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this.tailleSprite
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);
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}
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}
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window.onload = function () {
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var canvas = document.getElementById('canvas');
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var ctx = canvas.getContext('2d');
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var fromage = document.getElementById('fromage');
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var sourisSprites = document.getElementById('souris');
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var tuiles = {};
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tuiles[TYPE.MUR] = document.getElementById('mur');
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tuiles[TYPE.SOL] = document.getElementById('sol');
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tuiles[TYPE.PAS] = document.getElementById('pas');
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var touchesPressees = new this.Set();
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var largeur = Math.floor(window.innerWidth / TAILLE_TUILE);
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largeur = largeur - ((largeur + 1) % 2);
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var hauteur = Math.floor(window.innerHeight / TAILLE_TUILE);
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hauteur = hauteur - ((hauteur + 1) % 2);
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canvas.width = largeur * TAILLE_TUILE;
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canvas.height = hauteur * TAILLE_TUILE;
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var labyrinthe = new Labyrinthe(largeur, hauteur, ctx, tuiles);
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var souris = new Souris(labyrinthe.positionInitiale, ctx, sourisSprites);
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window.onkeydown = function (event) {
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if (event.key in ACTIONS) {
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touchesPressees.add(event.key);
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return false;
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} else {
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return true;
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}
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};
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window.onkeyup = function (event) {
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if (event.key in ACTIONS) {
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touchesPressees.delete(event.key);
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return false;
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} else {
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return true;
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}
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};
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var timerID;
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timerID = setInterval(function () {
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if (touchesPressees.size > 0) souris.animationSprite = (souris.animationSprite + 1) % 3;
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if (souris.mouvement != MOUVEMENT.ARRET) {
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souris.animation += 5;
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if (souris.animation >= TAILLE_TUILE) {
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souris.animation = 0;
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souris.position = souris.futurePosition;
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if (
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souris.position.x == labyrinthe.positionFinale.x &&
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souris.position.y == labyrinthe.positionFinale.y
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) {
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window.alert('Miam miam !');
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clearInterval(timerID);
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}
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}
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}
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if (souris.animation == 0) {
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souris.mouvement = MOUVEMENT.ARRET;
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for (touche of Array.from(touchesPressees).reverse()) {
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if (souris.bouger(touche, labyrinthe)) break;
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}
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}
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labyrinthe.dessiner();
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dessinerTuile(ctx, fromage, labyrinthe.positionFinale.x, labyrinthe.positionFinale.y);
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souris.dessiner();
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}, 40);
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};
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