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This commit is contained in:
Fabrice Ecaille
233
js/spaceinvaders-core.js
Normal file
233
js/spaceinvaders-core.js
Normal file
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var WAVES = [
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{
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wave : [ [ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ],
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[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ],
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[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ],
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[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ],
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[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ] ],
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move : function() {
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var offset = (PLAYGROUND_WIDTH - 16 * this.width) / 2;
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if (Math.abs((this.getOriginX() - this.getX())) >= offset) {
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this.directionX *= -1;
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this.y = (this.y + this.height / 4);
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}
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}
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},
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{
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wave : [ [ 0, 0, 0, 0, 0, 0, 0 ], [ 0, 0, 0, 0, 0, 0, 0, 0 ],
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[ 0, 0, 0, 0, 0, 0, 0, 0, 0 ],
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[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ],
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[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ] ],
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move : function() {
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var offset = (PLAYGROUND_WIDTH - 16 * this.width) / 2;
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if (Math.abs((this.getOriginX() - this.getX())) >= offset) {
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this.directionX *= -1;
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this.y = (this.y + this.height / 4);
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}
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}
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} ];
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Game = {
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running : false,
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wave : -1,
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aliens : [],
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ship : null,
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score : 0,
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init : function() {
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"use strict";
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Game.wave = Game.wave + 1;
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var row, col;
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var wave = WAVES[Game.wave].wave;
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for (row = 0; row < wave.length; row = row + 1) {
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var aliensRow = wave[row], type = aliensRow[0], offset = (PLAYGROUND_WIDTH - ((aliensRow.length - 1) * 0.5 + aliensRow.length)
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* ALIENS_WIDTH) / 2;
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for (col = 0; col < aliensRow.length; col = col + 1) {
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Game.setAlien(col, row, offset, type, WAVES[Game.wave].move);
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}
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}
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SCOREBOARD.init();
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SCOREBOARD.set_score( Game.score );
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Game.setShip();
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Game.running = true;
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},
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levelComplete : function() {
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"use strict";
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Game.running = false;
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setTimeout(function() {
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Game.init();
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}, 3000);
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},
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hit : function() {
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"use strict";
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if( !Game.running ) {
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return false;
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}
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console.log( "Game.hit" );
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var health = Game.ship.hit();
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$(".alienShot").remove();
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$(".shipShot").remove();
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$("#life" + Game.ship.lives).remove();
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Game.running = false;
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Game.ship.lives = Game.ship.lives - 1;
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$("#hero").children().hide();
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if( Game.ship.lives > 0 ) {
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var _this = Game.ship;
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setTimeout(function() {
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Game.running = true;
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$("#hero").children().show();
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_this.health = 1;
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}, 2000);
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}
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else {
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GUI.drawText( $("#message"), game_over, true );
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Game.show_game_over();
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}
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},
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setAlien : function(x, y, offset, type, move) {
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"use strict";
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var id = x * ROWS + y;
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var alien = new Alien("alien" + id, {
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x : offset + x * ALIENS_WIDTH * 1.5,
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y : START_Y + (y * 1.25 * ALIENS_HEIGHT)
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}, move);
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$("#actors").addSprite("alien" + id, $.extend({posx : alien.x, posy : alien.y}, animations.alien));
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alien.node = $("#alien" + id);
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alien.node.addClass("alien");
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$("#alien" + id)[0].alien = alien;
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Game.aliens.push(alien);
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},
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setShip : function() {
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var type = SHIPS.scout;
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Game.ship = new Ship("ship", {
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x : $("#hero").x(),
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y : $("#hero").y()
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}, 3, animations.hero.ship.animation);
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var hero = $("#hero");
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$.each(animations.hero,
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function(id, obj){
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hero.addSprite(id, obj);
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});
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Game.ship.node = $("#hero");
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},
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addToScore : function( toAdd ) {
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Game.score = Game.score + toAdd;
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SCOREBOARD.add( toAdd );
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},
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control : function() {
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if( !Game.running ) {
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return false;
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}
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$(document).keyup(function(e){
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switch(e.keyCode) {
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case 37:
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e.preventDefault();
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Game.ship.left(false);
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break;
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case 39:
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e.preventDefault();
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Game.ship.right(false);
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break;
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}
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});
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$(document).keydown(function(e){
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switch(e.keyCode) {
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case 37:
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e.preventDefault();
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Game.ship.left(true);
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break;
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case 39:
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e.preventDefault();
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Game.ship.right(true);
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break;
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case 32:
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e.preventDefault();
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Game.ship.fire($("#shipShots"), "shipShot");
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return false;
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}
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});
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},
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alienControl : function() {
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if( !Game.running ) {
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return false;
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}
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$.each(Game.aliens, function(index, alien ) {
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alien.move();
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if( alien.health > 0 && Math.random() < alien.aggression ) {
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alien.fire($("#aliensShots"), "alienShot");
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}
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});
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},
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heroShotCollision : function() {
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if( !Game.running ) {
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return false;
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}
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$(".shipShot").each(function(i,e) {
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var posy = $(this).y();
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if( posy < -$(this).height() ) {
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this.remove();
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return;
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}
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var weapon = $(this)[0].weapon;
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$(this).y(weapon.directionY * weapon.speed, true);
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$(this).x(weapon.directionX * weapon.speed, true);
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var collisions = $(this).collision(".alien,."+$.gQ.groupCssClass);
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collisions.each( function() {
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var alien = $(this)[0];
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var aliensNotInArray = $.grep( Game.aliens, function( elementOfArray, index) {
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return elementOfArray.id == alien.id;
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}, true);
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Game.aliens = aliensNotInArray;
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$(this)[0].alien.hit();
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})
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if( collisions.length > 0 ) {
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this.remove()
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}
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if( Game.aliens.length == 0 ) {
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Game.running = false;
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Game.levelComplete();
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}
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});
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},
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alienShotCollision : function() {
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if( !Game.running ) {
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return false;
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}
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$(".alienShot").each(function(i,e) {
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var posy = $(this).y();
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if( posy > PLAYGROUND_HEIGHT ) {
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this.remove();
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return;
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}
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var weapon = $(this)[0].weapon;
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$(this).y(weapon.directionY * weapon.speed, true);
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$(this).x(weapon.directionX * weapon.speed, true);
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var collisions = $(this).collision("#ship,."+$.gQ.groupCssClass);
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collisions.each( function() {
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Game.hit();
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})
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if( collisions.length > 0 ) {
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this.remove()
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}
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});
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}
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};
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