WeiWeiXinNet/Games/game5/game.js

这里只显示每个文件的开头 60 行。登录后可以解锁完整代码。

微信扫码关注公众号，代码整理好后第一时间通知你。

var sprites = {
 ship: { sx: 0, sy: 0, w: 37, h: 42, frames: 1 },
 missile: { sx: 0, sy: 30, w: 2, h: 10, frames: 1 },
 enemy_purple: { sx: 37, sy: 0, w: 42, h: 43, frames: 1 },
 enemy_bee: { sx: 79, sy: 0, w: 37, h: 43, frames: 1 },
 enemy_ship: { sx: 116, sy: 0, w: 42, h: 43, frames: 1 },
 enemy_circle: { sx: 158, sy: 0, w: 32, h: 33, frames: 1 },
 explosion: { sx: 0, sy: 64, w: 64, h: 64, frames: 12 },
 enemy_missile: { sx: 9, sy: 42, w: 3, h: 20, frame: 1, }
};

var enemies = {
  straight: { x: 0,   y: -50, sprite: 'enemy_ship', health: 10, 
              E: 100 },
  ltr:      { x: 0,   y: -100, sprite: 'enemy_purple', health: 10, 
              B: 75, C: 1, E: 100, missiles: 2  },
  circle:   { x: 250,   y: -50, sprite: 'enemy_circle', health: 10, 
              A: 0,  B: -100, C: 1, E: 20, F: 100, G: 1, H: Math.PI/2 },
  wiggle:   { x: 100, y: -50, sprite: 'enemy_bee', health: 20, 
              B: 50, C: 4, E: 100, firePercentage: 0.001, missiles: 2 },
  step:     { x: 0,   y: -50, sprite: 'enemy_circle', health: 10,
              B: 150, C: 1.2, E: 75 }
};

var OBJECT_PLAYER = 1,
    OBJECT_PLAYER_PROJECTILE = 2,
    OBJECT_ENEMY = 4,
    OBJECT_ENEMY_PROJECTILE = 8,
    OBJECT_POWERUP = 16;

var startGame = function() {
  var ua = navigator.userAgent.toLowerCase();

  // Only 1 row of stars
  if(ua.match(/android/)) {
    Game.setBoard(0,new Starfield(50,0.6,100,true));
  } else {
    Game.setBoard(0,new Starfield(20,0.4,100,true));
    Game.setBoard(1,new Starfield(50,0.6,100));
    Game.setBoard(2,new Starfield(100,1.0,50));
  }  
  Game.setBoard(3,new TitleScreen("Alien Invasion", 
                                  "Press fire to start playing",
                                  playGame));
};

var level1 = [
 // Start,   End, Gap,  Type,   Override
  [ 0,      4000,  500, 'step' ],
  [ 6000,   13000, 800, 'ltr' ],
  [ 10000,  16000, 400, 'circle' ],
  [ 17800,  20000, 500, 'straight', { x: 50 } ],
  [ 18200,  20000, 500, 'straight', { x: 90 } ],
  [ 18200,  20000, 500, 'straight', { x: 10 } ],
  [ 22000,  25000, 400, 'wiggle', { x: 150 }],
  [ 22000,  25000, 400, 'wiggle', { x: 100 }]
];