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 ground;
   5         var platforms;
   6         var guards;
   7         var guard1, guard2;
   8         var birdcage;
   9         var helptext;
  10         var cursors;
  11         var lastkeytime = 0;
  12         var keyboard_handler;
  13         var interaction_handler;
  14         var actual_dialogue = null;
  15
  16         var WAIT_KEY    =       500;
  17
  18         var SHAPE_GIRL  =       0;
  19         var SHAPE_GOAT  =       1;
  20         var SHAPE_BIRD  =       2;
  21
  22         var dialogue_guard1_girl =
  23             [ { actor: 'player', text: "Hello! May I enter this town?" },
  24               { actor: 'guard',  text: "Sorry, I don't know you.\nI can't let you in." } ];
  25         var dialogue_guard1_girl_retry =
  26             [ { actor: 'player', text: "But I'm a goddess!" },
  27               { actor: 'guard',  text: "I'm a feminist.\nI don't put women on pedestals." } ];
  28         var dialogue_guard1_goat =
  29             [ { actor: 'guard',  text: "Hmm, it must be Coralie's lost goat.\nI'd better let it in." } ];
  30         var dialogue_guard2_girl =
  31             [ { actor: 'player', text: "Hi there! I'm a goddess and can transform into a goat!" },
  32               { actor: 'guard',  text: "Hey, that's really cool!\nI'm Coralie." },
  33               { actor: 'player', text: "Nice bird you have there.\nCan I have it?" },
  34               { actor: 'guard',  text: "Yeah, it's yours. Just take it." },
  35               { actor: 'guard',  text: "Don't mind that it took me days to catch it." },
  36               { actor: 'player', text: "Observing this bird, I will be able to shapeshift into a bird too!" } ];
  37         var dialogue_guard2_goat =
  38             [ { actor: 'guard',  text: "This is not my goat. Strange to see random\ngoats wandering here while mine is still missing." } ];
  39         var dialogue_guard3_girl =
  40             [ { actor: 'player', text: "Hi! I'd like to leave the town." },
  41               { 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." },
  42               { actor: 'player', text: "I just came here before the goat went missing. The other guard can support this." },
  43               { actor: 'player', text: "And the goat may have just wandered away.\nYou know they tend to escape, they require lots of space." },
  44               { actor: 'guard',  text: "Maybe, but we can't be sure. Sorry." } ];
  45         var dialogue_guard3_girl_retry =
  46             [ { actor: 'player', text: "But I'm a girl! I wouldn't steal anything!" },
  47               { actor: 'guard',  text: "I'm a feminist.\nI don't give advantages to people based on their genders." } ];
  48         var dialogue_guard3_goat =
  49             [ { actor: 'guard',  text: "Another goat is trying to escape...\nGood that I'm on guard!" } ];
  50         var dialogue_guard3_bird =
  51             [ { actor: 'guard',  text: "Hi birdie! Don't fly at me, please!" } ];
  52         var dialogue_guard4_girl =
  53             [ { actor: 'guard',  text: "You are at home!\nYou don't have to pretend anymore." } ];
  54         var dialogue_guard4_goat =
  55             [ { actor: 'guard',  text: "Welcome home!\nGlad you shapeshifted back to your true form!" },
  56               { actor: 'guard',  text: "Yes, your true form is goat.\nDidn't you suspect it all along?" } ];
  57         var dialogue_guard4_goat_retry =
  58             [ { actor: 'guard',  text: "(By the way, this is the end of the game.\nYou really can't do anything more.\nThanks for playing!)" } ];
  59
  60
  61         window.addEventListener("keydown", function(e) {
  62             // Prevent default browser action for arrows and spacebar
  63             if([32, 37, 38, 39, 40].indexOf(e.keyCode) > -1) {
  64             e.preventDefault();
  65             }
  66         }, false);
  67
  68         function sign(n) {
  69             if (n >= 0) { return 1 } else { return -1 };
  70         }
  71
  72         function preload () {
  73
  74             game.load.image('ground', 'ground.svg');
  75             game.load.image('player_girl', 'csaj.svg');
  76             game.load.image('player_goat', 'kecskecsaj.svg');
  77             game.load.image('player_bird', 'bird.svg');
  78             game.load.image('guard', 'guard.svg');
  79             game.load.image('birdcage', 'birdcage.svg');
  80
  81         }
  82
  83         function create () {
  84
  85             game.world.setBounds(0, 0, 2800, 600);
  86             game.stage.backgroundColor = 0xffffff;
  87             game.physics.startSystem(Phaser.Physics.ARCADE);
  88
  89             platforms = game.add.group();
  90             platforms.classType = Phaser.TileSprite;
  91             platforms.enableBody = true;
  92
  93
  94             ground = game.add.tileSprite(0, game.world.height - 80, game.world.width, 200, 'ground');
  95             platforms.add(ground);
  96             ground.body.immovable = true;
  97
  98
  99             player = game.add.sprite(64, game.world.height - 200, 'player_girl');
 100             player.anchor.setTo(.4,.5);
 101             player.scale.x = 0.5;
 102             player.scale.y = player.scale.x;
 103             game.physics.arcade.enable(player);
 104             player.body.bounce.y = 0.2;
 105             player.body.bounce.x = 0.2;
 106             player.body.gravity.y = 300;
 107             player.body.collideWorldBounds = true;
 108             player.pushed = 0;
 109             player.shape = SHAPE_GIRL;
 110             player.learnedBird = false;
 111             game.camera.follow(player);
 112
 113             guards = game.add.group();
 114             guard1 = createGuard(600, game.world.height - 200, 'guard',
 115                 { girl: dialogue_guard1_girl, goat: dialogue_guard1_goat });
 116             guard2 = createGuard(1000, game.world.height - 200, 'player_girl',
 117                 { girl: dialogue_guard2_girl, goat: dialogue_guard2_goat });
 118             guard2.scale.x = -guard2.scale.x;
 119             guard3 = createGuard(1400, game.world.height - 200, 'guard',
 120                 { girl: dialogue_guard3_girl, goat: dialogue_guard3_goat, bird: dialogue_guard3_bird });
 121             guard4 = createGuard(2400, game.world.height - 200, 'player_goat',
 122                 { girl: dialogue_guard4_girl, goat: dialogue_guard4_goat, bird: dialogue_guard4_girl });
 123             guard4.scale.x = -guard4.scale.x;
 124
 125             birdcage = game.add.sprite(1100, game.world.height - 300, 'birdcage');
 126             birdcage.scale.x = 0.5;
 127             birdcage.scale.y = birdcage.scale.x;
 128
 129             cursors = game.input.keyboard.createCursorKeys();
 130
 131             keyboard_handler = keyPress_default;
 132             interaction_handler = interaction;
 133
 134             helptext = game.add.text(80, 30, "Press ARROWS to move.", { align: 'left', fill: '#000000', fontSize: 14 });
 135             helptext.font = "Ubuntu Mono";
 136
 137         }
 138
 139         function update () {
 140
 141             game.physics.arcade.collide(player, platforms);
 142             game.physics.arcade.collide(guards, platforms);
 143             game.physics.arcade.collide(player, guards, interaction_handler);
 144
 145             if (player.pushed)
 146             {
 147                 if ((game.time.now - player.pushed) > 1000)
 148                     player.pushed = 0;
 149             }
 150             else
 151             {
 152                 player.body.velocity.x = 0;
 153             }
 154
 155             if (keyboard_handler) keyboard_handler();
 156
 157         }
 158
 159         function keyPress_default() {
 160
 161             if (cursors.left.isDown)
 162             {
 163                 player.body.velocity.x = -150;
 164                 player.scale.x = - Math.abs(player.scale.x);
 165             }
 166             else if (cursors.right.isDown)
 167             {
 168                 player.body.velocity.x = 150;
 169                 player.scale.x = Math.abs(player.scale.x);
 170             }
 171             else if (game.input.keyboard.isDown(Phaser.Keyboard.SPACEBAR) && ((game.time.now - lastkeytime) > WAIT_KEY))
 172             {
 173                 if (player.shape == SHAPE_GIRL)
 174                 {
 175                     player.shape = SHAPE_GOAT;
 176                     player.loadTexture('player_goat');
 177                 }
 178                 else if ((player.shape == SHAPE_GOAT) && (player.learnedBird))
 179                 {
 180                     player.shape = SHAPE_BIRD;
 181                     player.loadTexture('player_bird');
 182                 }
 183                 else
 184                 {
 185                     player.shape = SHAPE_GIRL;
 186                     player.loadTexture('player_girl');
 187                 }
 188
 189                 player.body.setSize(player.texture.width, player.texture.height);
 190                 if ((ground.y - player.y) < player.body.halfHeight)
 191                     player.y = ground.y - player.body.halfHeight;
 192
 193                 lastkeytime = game.time.now;
 194             }
 195
 196             if ((cursors.up.isDown) && (player.shape == SHAPE_BIRD))
 197             {
 198                 player.body.velocity.y = -200;
 199             }
 200
 201         }
 202
 203         function keyPress_indialogue() {
 204
 205             if (game.input.keyboard.isDown(Phaser.Keyboard.SPACEBAR) && ((game.time.now - lastkeytime) > WAIT_KEY))
 206             {
 207                 var dialogue = actual_dialogue.dialogue;
 208                 if (dialogue[actual_dialogue.state + 1])
 209                 {
 210                     var nextState = ++actual_dialogue.state;
 211                     var actor = null;
 212                     if (dialogue[nextState].actor == 'player') actor = actual_dialogue.player;
 213                     else if (dialogue[nextState].actor == 'guard') actor = actual_dialogue.guard;
 214
 215                     actual_dialogue.lastText.kill();
 216                     actual_dialogue.lastText = putText(actor, dialogue[nextState].text);
 217                     lastkeytime = game.time.now;
 218                 }
 219                 else
 220                 {
 221                     leaveDialogue();
 222                     lastkeytime = game.time.now;
 223                 }
 224             }
 225
 226         }
 227
 228         function createGuard(x, y, sprite, dialogues) {
 229
 230             var guard = game.add.sprite(x, y, sprite);
 231             guard.anchor.setTo(.5,.5);
 232             guard.scale.x = 0.5;
 233             guard.scale.y = guard.scale.x;
 234             game.physics.arcade.enable(guard);
 235             guard.body.bounce.y = 0.2;
 236             guard.body.bounce.x = 0.2;
 237             guard.body.gravity.y = 300;
 238             guard.body.collideWorldBounds = true;
 239             guard.dialogues = dialogues;
 240             guards.add(guard);
 241             return guard;
 242
 243         }
 244
 245         function putText(entity, text) {
 246             var textObject = game.add.text(entity.x, entity.y - (entity.height / 2) - 30, text, { align: 'center', fontSize: 14 });
 247             textObject.font = 'Ubuntu Mono';
 248             textObject.anchor.setTo(.5,.5);
 249             return textObject;
 250         }
 251
 252         function interaction(player, guard) {
 253
 254             console.log('Interaction with ' + guard.key);
 255             player.body.velocity.x = -100;
 256             player.pushed = game.time.now;
 257             guard.body.velocity.x = 0;
 258
 259             if (player.shape == SHAPE_GIRL)
 260             {
 261                 if ((guard == guard1) && (guard.dialogues.girl == dialogue_guard1_girl))
 262                     helptext.text = helptext.text + "\nPress SPACE to progress dialogue.";
 263                 enterDialogue(player, guard, guard.dialogues.girl);
 264             }
 265             else if (player.shape == SHAPE_GOAT)
 266             {
 267                 enterDialogue(player, guard, guard.dialogues.goat);
 268             }
 269             else if (player.shape == SHAPE_BIRD)
 270             {
 271                 enterDialogue(player, guard, guard.dialogues.bird);
 272             }
 273
 274         }
 275
 276         function enterDialogue(player, guard, dialogue) {
 277
 278             var actor = null;
 279             if (dialogue[0].actor == 'player') actor = player;
 280             else if (dialogue[0].actor == 'guard') actor = guard;
 281
 282             var lastText = putText(actor, dialogue[0].text);
 283             actual_dialogue = { player: player, guard: guard, dialogue: dialogue, state: 0 , lastText: lastText };
 284             keyboard_handler = keyPress_indialogue;
 285             interaction_handler = null;
 286
 287         }
 288
 289         function leaveDialogue() {
 290
 291             actual_dialogue.lastText.kill();
 292             if (actual_dialogue.dialogue == dialogue_guard1_girl)
 293             {
 294                 helptext.text = helptext.text + "\nPress SPACE to shapeshift.";
 295                 guard1.dialogues.girl = dialogue_guard1_girl_retry;
 296             }
 297             else if (actual_dialogue.dialogue == dialogue_guard1_goat)
 298             {
 299                 guard1.kill();
 300             }
 301             else if (actual_dialogue.dialogue == dialogue_guard2_girl)
 302             {
 303                 guard2.kill();
 304                 birdcage.kill();
 305                 player.learnedBird = true;
 306             }
 307             else if (actual_dialogue.dialogue == dialogue_guard3_girl)
 308             {
 309                 guard3.dialogues.girl = dialogue_guard3_girl_retry;
 310             }
 311             else if (actual_dialogue.dialogue == dialogue_guard4_goat)
 312             {
 313                 guard4.dialogues.goat = dialogue_guard4_goat_retry;
 314                 guard4.dialogues.girl = dialogue_guard4_goat_retry;
 315                 guard4.dialogues.bird = dialogue_guard4_goat_retry;
 316             }
 317
 318             actual_dialogue = null;
 319             keyboard_handler = keyPress_default;
 320             interaction_handler = interaction;
 321
 322         }
 323
 324     };