shapeshift.js

   1     window.onload = function() {
   2
   3         var game = new Phaser.Game(800, 600, Phaser.AUTO, '', { preload: preload, create: create, update: update });
   4         var platforms;
   5         var guards;
   6         var guard1, guard2;
   7         var birdcage;
   8         var helptext;
   9         var cursors;
  10         var lastkeytime = 0;
  11         var keyboard_handler;
  12         var interaction_handler;
  13         var actual_dialogue = null;
  14
  15         var WAIT_KEY    =       500;
  16
  17         var SHAPE_GIRL  =       0;
  18         var SHAPE_GOAT  =       1;
  19         var SHAPE_BIRD  =       2;
  20
  21         var dialogue_guard1_girl =
  22             [ { actor: 'player', text: "Hello! May I enter this town?" },
  23               { actor: 'guard',  text: "Sorry, I don't know you.\nI can't let you in." } ];
  24         var dialogue_guard1_girl_retry =
  25             [ { actor: 'player', text: "But I'm a goddess!" },
  26               { actor: 'guard',  text: "I'm a feminist.\nI don't put women on pedestals." } ];
  27         var dialogue_guard1_goat =
  28             [ { actor: 'guard',  text: "Hmm, it must be Coralie's lost goat.\nI'd better let it in." } ];
  29         var dialogue_guard2_girl =
  30             [ { actor: 'player', text: "Hi there! I'm a goddess and can transform into a goat!" },
  31               { actor: 'guard',  text: "Hey, that's really cool!\nI'm Coralie." },
  32               { actor: 'player', text: "Nice bird you have there.\nCan I have it?" },
  33               { actor: 'guard',  text: "Yeah, it's yours. Just take it." },
  34               { actor: 'guard',  text: "Don't mind that it took me days to catch it." },
  35               { actor: 'player', text: "Observing this bird, I will be able to shapeshift into a bird too!" } ];
  36         var dialogue_guard2_goat =
  37             [ { actor: 'guard',  text: "This is not my goat. Strange to see random\ngoats wandering here while mine is still missing." } ];
  38         var dialogue_guard3_girl =
  39             [ { actor: 'player', text: "Hi! I'd like to leave the town." },
  40               { actor: 'guard',  text: "Sorry, we have a report of a missing goat.\nIt may have been stolen. We can't let anyone out\nuntil we find the thief." },
  41               { actor: 'player', text: "I just came here before the goat went missing. The other guard can support this." },
  42               { actor: 'player', text: "And the goat may have just wandered away.\nYou know they tend to escape, they require lots of space." },
  43               { actor: 'guard',  text: "Maybe, but we can't be sure. Sorry." } ];
  44         var dialogue_guard3_girl_retry =
  45             [ { actor: 'player', text: "But I'm a girl! I wouldn't steal anything!" },
  46               { actor: 'guard',  text: "I'm a feminist.\nI don't give advantages to people based on their genders." } ];
  47         var dialogue_guard3_goat =
  48             [ { actor: 'guard',  text: "Another goat is trying to escape...\nGood that I'm on guard!" } ];
  49         var dialogue_guard3_bird =
  50             [ { actor: 'guard',  text: "Hi birdie! Don't fly at me, please!" } ];
  51         var dialogue_guard4_girl =
  52             [ { actor: 'guard',  text: "You are at home!\nYou don't have to pretend anymore." } ];
  53         var dialogue_guard4_goat =
  54             [ { actor: 'guard',  text: "Welcome home!\nGlad you shapeshifted back to your true form!" },
  55               { actor: 'guard',  text: "Yes, your true form is goat.\nDidn't you suspect it all along?" } ];
  56         var dialogue_guard4_goat_retry =
  57             [ { actor: 'guard',  text: "(By the way, this is the end of the game.\nYou really can't do anything more.\nThanks for playing!)" } ];
  58
  59
  60         window.addEventListener("keydown", function(e) {
  61             // Prevent default browser action for arrows and spacebar
  62             if([32, 37, 38, 39, 40].indexOf(e.keyCode) > -1) {
  63             e.preventDefault();
  64             }
  65         }, false);
  66
  67         function sign(n) {
  68             if (n >= 0) { return 1 } else { return -1 };
  69         }
  70
  71         function preload () {
  72
  73             game.load.image('ground', 'ground.svg');
  74             game.load.image('player_girl', 'csaj.svg');
  75             game.load.image('player_goat', 'kecskecsaj.svg');
  76             game.load.image('player_bird', 'bird.svg');
  77             game.load.image('guard', 'guard.svg');
  78             game.load.image('birdcage', 'birdcage.svg');
  79
  80         }
  81
  82         function create () {
  83
  84             game.world.setBounds(0, 0, 2800, 600);
  85             game.stage.backgroundColor = 0xffffff;
  86             game.physics.startSystem(Phaser.Physics.ARCADE);
  87
  88             platforms = game.add.group();
  89             platforms.classType = Phaser.TileSprite;
  90             platforms.enableBody = true;
  91
  92
  93             var ground = game.add.tileSprite(0, game.world.height - 80, game.world.width, 200, 'ground');
  94             platforms.add(ground);
  95             ground.body.immovable = true;
  96
  97
  98             player = game.add.sprite(64, game.world.height - 200, 'player_girl');
  99             player.anchor.setTo(.4,.5);
 100             player.scale.x = 0.5;
 101             player.scale.y = player.scale.x;
 102             game.physics.arcade.enable(player);
 103             player.body.bounce.y = 0.2;
 104             player.body.bounce.x = 0.2;
 105             player.body.gravity.y = 300;
 106             player.body.collideWorldBounds = true;
 107             player.pushed = 0;
 108             player.shape = SHAPE_GIRL;
 109             player.learnedBird = false;
 110             game.camera.follow(player);
 111
 112             guards = game.add.group();
 113             guard1 = createGuard(600, game.world.height - 200, 'guard',
 114                 { girl: dialogue_guard1_girl, goat: dialogue_guard1_goat });
 115             guard2 = createGuard(1000, game.world.height - 200, 'player_girl',
 116                 { girl: dialogue_guard2_girl, goat: dialogue_guard2_goat });
 117             guard2.scale.x = -guard2.scale.x;
 118             guard3 = createGuard(1400, game.world.height - 200, 'guard',
 119                 { girl: dialogue_guard3_girl, goat: dialogue_guard3_goat, bird: dialogue_guard3_bird });
 120             guard4 = createGuard(2400, game.world.height - 200, 'player_goat',
 121                 { girl: dialogue_guard4_girl, goat: dialogue_guard4_goat, bird: dialogue_guard4_girl });
 122             guard4.scale.x = -guard4.scale.x;
 123
 124             birdcage = game.add.sprite(1100, game.world.height - 300, 'birdcage');
 125             birdcage.scale.x = 0.5;
 126             birdcage.scale.y = birdcage.scale.x;
 127
 128             cursors = game.input.keyboard.createCursorKeys();
 129
 130             keyboard_handler = keyPress_default;
 131             interaction_handler = interaction;
 132
 133             helptext = game.add.text(80, 30, "Press ARROWS to move.", { align: 'left', fill: '#000000', fontSize: 14 });
 134             helptext.font = "Ubuntu Mono";
 135
 136         }
 137
 138         function update () {
 139
 140             game.physics.arcade.collide(player, platforms);
 141             game.physics.arcade.collide(guards, platforms);
 142             game.physics.arcade.collide(player, guards, interaction_handler);
 143
 144             if (player.pushed)
 145             {
 146                 if ((game.time.now - player.pushed) > 1000)
 147                     player.pushed = 0;
 148             }
 149             else
 150             {
 151                 player.body.velocity.x = 0;
 152             }
 153
 154             if (keyboard_handler) keyboard_handler();
 155
 156         }
 157
 158         function keyPress_default() {
 159
 160             if (cursors.left.isDown)
 161             {
 162                 player.body.velocity.x = -150;
 163                 player.scale.x = - Math.abs(player.scale.x);
 164             }
 165             else if (cursors.right.isDown)
 166             {
 167                 player.body.velocity.x = 150;
 168                 player.scale.x = Math.abs(player.scale.x);
 169             }
 170             else if (game.input.keyboard.isDown(Phaser.Keyboard.SPACEBAR) && ((game.time.now - lastkeytime) > WAIT_KEY))
 171             {
 172                 if (player.shape == SHAPE_GIRL)
 173                 {
 174                     player.shape = SHAPE_GOAT;
 175                     player.loadTexture('player_goat');
 176                 }
 177                 else if ((player.shape == SHAPE_GOAT) && (player.learnedBird))
 178                 {
 179                     player.shape = SHAPE_BIRD;
 180                     player.loadTexture('player_bird');
 181                 }
 182                 else
 183                 {
 184                     player.shape = SHAPE_GIRL;
 185                     player.loadTexture('player_girl');
 186                 }
 187                 lastkeytime = game.time.now;
 188             }
 189
 190             if ((cursors.up.isDown) && (player.shape == SHAPE_BIRD))
 191             {
 192                 player.body.velocity.y = -200;
 193             }
 194
 195         }
 196
 197         function keyPress_indialogue() {
 198
 199             if (game.input.keyboard.isDown(Phaser.Keyboard.SPACEBAR) && ((game.time.now - lastkeytime) > WAIT_KEY))
 200             {
 201                 var dialogue = actual_dialogue.dialogue;
 202                 if (dialogue[actual_dialogue.state + 1])
 203                 {
 204                     var nextState = ++actual_dialogue.state;
 205                     var actor = null;
 206                     if (dialogue[nextState].actor == 'player') actor = actual_dialogue.player;
 207                     else if (dialogue[nextState].actor == 'guard') actor = actual_dialogue.guard;
 208
 209                     actual_dialogue.lastText.kill();
 210                     actual_dialogue.lastText = putText(actor, dialogue[nextState].text);
 211                     lastkeytime = game.time.now;
 212                 }
 213                 else
 214                 {
 215                     leaveDialogue();
 216                     lastkeytime = game.time.now;
 217                 }
 218             }
 219
 220         }
 221
 222         function createGuard(x, y, sprite, dialogues) {
 223
 224             var guard = game.add.sprite(x, y, sprite);
 225             guard.anchor.setTo(.5,.5);
 226             guard.scale.x = 0.5;
 227             guard.scale.y = guard.scale.x;
 228             game.physics.arcade.enable(guard);
 229             guard.body.bounce.y = 0.2;
 230             guard.body.bounce.x = 0.2;
 231             guard.body.gravity.y = 300;
 232             guard.body.collideWorldBounds = true;
 233             guard.dialogues = dialogues;
 234             guards.add(guard);
 235             return guard;
 236
 237         }
 238
 239         function putText(entity, text) {
 240             var textObject = game.add.text(entity.x, entity.y - (entity.height / 2) - 30, text, { align: 'center', fontSize: 14 });
 241             textObject.font = 'Ubuntu Mono';
 242             textObject.anchor.setTo(.5,.5);
 243             return textObject;
 244         }
 245
 246         function interaction(player, guard) {
 247
 248             console.log('Interaction with ' + guard.key);
 249             player.body.velocity.x = -100;
 250             player.pushed = game.time.now;
 251             guard.body.velocity.x = 0;
 252
 253             if (player.shape == SHAPE_GIRL)
 254             {
 255                 if ((guard == guard1) && (guard.dialogues.girl == dialogue_guard1_girl))
 256                     helptext.text = helptext.text + "\nPress SPACE to progress dialogue.";
 257                 enterDialogue(player, guard, guard.dialogues.girl);
 258             }
 259             else if (player.shape == SHAPE_GOAT)
 260             {
 261                 enterDialogue(player, guard, guard.dialogues.goat);
 262             }
 263             else if (player.shape == SHAPE_BIRD)
 264             {
 265                 enterDialogue(player, guard, guard.dialogues.bird);
 266             }
 267
 268         }
 269
 270         function enterDialogue(player, guard, dialogue) {
 271
 272             var actor = null;
 273             if (dialogue[0].actor == 'player') actor = player;
 274             else if (dialogue[0].actor == 'guard') actor = guard;
 275
 276             var lastText = putText(actor, dialogue[0].text);
 277             actual_dialogue = { player: player, guard: guard, dialogue: dialogue, state: 0 , lastText: lastText };
 278             keyboard_handler = keyPress_indialogue;
 279             interaction_handler = null;
 280
 281         }
 282
 283         function leaveDialogue() {
 284
 285             actual_dialogue.lastText.kill();
 286             if (actual_dialogue.dialogue == dialogue_guard1_girl)
 287             {
 288                 helptext.text = helptext.text + "\nPress SPACE to shapeshift.";
 289                 guard1.dialogues.girl = dialogue_guard1_girl_retry;
 290             }
 291             else if (actual_dialogue.dialogue == dialogue_guard1_goat)
 292             {
 293                 guard1.kill();
 294             }
 295             else if (actual_dialogue.dialogue == dialogue_guard2_girl)
 296             {
 297                 guard2.kill();
 298                 birdcage.kill();
 299                 player.learnedBird = true;
 300             }
 301             else if (actual_dialogue.dialogue == dialogue_guard3_girl)
 302             {
 303                 guard3.dialogues.girl = dialogue_guard3_girl_retry;
 304             }
 305             else if (actual_dialogue.dialogue == dialogue_guard4_goat)
 306             {
 307                 guard4.dialogues.goat = dialogue_guard4_goat_retry;
 308                 guard4.dialogues.girl = dialogue_guard4_goat_retry;
 309                 guard4.dialogues.bird = dialogue_guard4_goat_retry;
 310             }
 311
 312             actual_dialogue = null;
 313             keyboard_handler = keyPress_default;
 314             interaction_handler = interaction;
 315
 316         }
 317
 318     };