shapeshift.js

   1         var game = new Phaser.Game(800, 600, Phaser.AUTO, '', { preload: preload, create: create, update: update });
   2         var ground;
   3         var platforms;
   4         var guards;
   5         var guard1, guard2;
   6         var birdcage;
   7         var helptext;
   8         var cursors;
   9         var lastkeytime = 0;
  10         var keyboard_handler;
  11         var interaction_handler;
  12         var actual_dialogue = null;
  13
  14         var WAIT_KEY    =       500;
  15
  16         var SHAPE_GIRL  =       0;
  17         var SHAPE_GOAT  =       1;
  18         var SHAPE_BIRD  =       2;
  19
  20         var dialogue_guard1_girl =
  21             [ { actor: 'player', text: "Hello! May I enter this town?" },
  22               { actor: 'guard',  text: "Sorry, I don't know you.\nI can't let you in." } ];
  23         var dialogue_guard1_girl_retry =
  24             [ { actor: 'player', text: "But I'm a goddess!" },
  25               { actor: 'guard',  text: "I'm a feminist.\nI don't put women on pedestals." } ];
  26         var dialogue_guard1_goat =
  27             [ { actor: 'guard',  text: "Hmm, it must be Coralie's lost goat.\nI'd better let it in." } ];
  28         var dialogue_guard2_girl =
  29             [ { actor: 'player', text: "Hi there! I'm a goddess and can transform into a goat!" },
  30               { actor: 'guard',  text: "Hey, that's really cool!\nI'm Coralie." },
  31               { actor: 'player', text: "Nice bird you have there.\nCan I have it?" },
  32               { actor: 'guard',  text: "Yeah, it's yours. Just take it." },
  33               { actor: 'guard',  text: "Don't mind that it took me days to catch it." },
  34               { actor: 'player', text: "Observing this bird, I will be able to shapeshift into a bird too!" } ];
  35         var dialogue_guard2_goat =
  36             [ { actor: 'guard',  text: "This is not my goat. Strange to see random\ngoats wandering here while mine is still missing." } ];
  37         var dialogue_guard3_girl =
  38             [ { actor: 'player', text: "Hi! I'd like to leave the town." },
  39               { 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." },
  40               { actor: 'player', text: "I just came here before the goat went missing. The other guard can support this." },
  41               { actor: 'player', text: "And the goat may have just wandered away.\nYou know they tend to escape, they require lots of space." },
  42               { actor: 'guard',  text: "Maybe, but we can't be sure. Sorry." } ];
  43         var dialogue_guard3_girl_retry =
  44             [ { actor: 'player', text: "But I'm a girl! I wouldn't steal anything!" },
  45               { actor: 'guard',  text: "I'm a feminist.\nI don't give advantages to people based on their genders." } ];
  46         var dialogue_guard3_goat =
  47             [ { actor: 'guard',  text: "Another goat is trying to escape...\nGood that I'm on guard!" } ];
  48         var dialogue_guard3_bird =
  49             [ { actor: 'guard',  text: "Hi birdie! Don't fly at me, please!" } ];
  50         var dialogue_guard4_girl =
  51             [ { actor: 'guard',  text: "You are at home!\nYou don't have to pretend anymore." } ];
  52         var dialogue_guard4_goat =
  53             [ { actor: 'guard',  text: "Welcome home!\nGlad you shapeshifted back to your true form!" },
  54               { actor: 'guard',  text: "Yes, your true form is goat.\nDidn't you suspect it all along?" } ];
  55         var dialogue_guard4_goat_retry =
  56             [ { actor: 'guard',  text: "(By the way, this is the end of the game.\nYou really can't do anything more.\nThanks for playing!)" } ];
  57
  58
  59         window.addEventListener("keydown", function(e) {
  60             // Prevent default browser action for arrows and spacebar
  61             if([32, 37, 38, 39, 40].indexOf(e.keyCode) > -1) {
  62             e.preventDefault();
  63             }
  64         }, false);
  65
  66         class Entity extends Phaser.Sprite {
  67             constructor(x, y, sprite) {
  68                 super(game, x, y, sprite);
  69                 this.anchor.setTo(.5,.5);
  70                 this.scale.x = 0.5;
  71                 this.scale.y = this.scale.x;
  72             }
  73
  74             enablePhysics() {
  75                 game.physics.arcade.enable(this);
  76                 this.body.bounce.y = 0.2;
  77                 this.body.bounce.x = 0.2;
  78                 this.body.gravity.y = 300;
  79                 this.body.collideWorldBounds = true;
  80             }
  81         }
  82
  83         class Player extends Entity {
  84             constructor(x, y, sprite) {
  85                 super(x, y, sprite);
  86                 this.anchor.setTo(.4,.5);
  87                 this.pushed = 0;
  88                 this.shape = SHAPE_GIRL;
  89                 this.learnedBird = false;
  90             }
  91         }
  92
  93         class Guard extends Entity {
  94             constructor(x, y, sprite, dialogues) {
  95                 //var guard = game.add.sprite(x, y, sprite);
  96                 super(x, y, sprite);
  97                 this.dialogues = dialogues;
  98                 guards.add(this);
  99             }
 100         }
 101
 102         function sign(n) {
 103             if (n >= 0) { return 1 } else { return -1 };
 104         }
 105
 106         function preload () {
 107
 108             game.load.image('ground', 'ground.png');
 109             game.load.image('player_girl', 'csaj.png');
 110             game.load.image('player_goat', 'kecskecsaj.png');
 111             game.load.image('player_bird', 'bird.png');
 112             game.load.image('guard', 'guard.png');
 113             game.load.image('birdcage', 'birdcage.png');
 114
 115         }
 116
 117         function create () {
 118
 119             game.world.setBounds(0, 0, 2800, 600);
 120             game.stage.backgroundColor = 0xffffff;
 121             game.physics.startSystem(Phaser.Physics.ARCADE);
 122
 123             platforms = game.add.group();
 124             platforms.classType = Phaser.TileSprite;
 125             platforms.enableBody = true;
 126
 127
 128             ground = game.add.tileSprite(0, game.world.height - 80, game.world.width, 200, 'ground');
 129             platforms.add(ground);
 130             ground.body.immovable = true;
 131
 132
 133             //player = game.add.sprite(64, game.world.height - 200, 'player_girl');
 134             player = new Player(64, game.world.height - 200, 'player_girl');
 135             player.enablePhysics();
 136             game.add.existing(player);
 137             game.camera.follow(player);
 138
 139             guards = game.add.group();
 140             guard1 = new Guard(600, game.world.height - 200, 'guard',
 141                 { girl: dialogue_guard1_girl, goat: dialogue_guard1_goat });
 142             guard2 = new Guard(1000, game.world.height - 200, 'player_girl',
 143                 { girl: dialogue_guard2_girl, goat: dialogue_guard2_goat });
 144             guard2.scale.x = -guard2.scale.x;
 145             guard3 = new Guard(1400, game.world.height - 200, 'guard',
 146                 { girl: dialogue_guard3_girl, goat: dialogue_guard3_goat, bird: dialogue_guard3_bird });
 147             guard4 = new Guard(2400, game.world.height - 200, 'player_goat',
 148                 { girl: dialogue_guard4_girl, goat: dialogue_guard4_goat, bird: dialogue_guard4_girl });
 149             guard4.scale.x = -guard4.scale.x;
 150             guards.children.forEach(function(guard) { guard.enablePhysics(); });
 151
 152             birdcage = game.add.sprite(1100, game.world.height - 300, 'birdcage');
 153             birdcage.scale.x = 0.5;
 154             birdcage.scale.y = birdcage.scale.x;
 155
 156             cursors = game.input.keyboard.createCursorKeys();
 157
 158             keyboard_handler = keyPress_default;
 159             interaction_handler = interaction;
 160
 161             helptext = game.add.text(80, 30, "Press ARROWS to move.", { align: 'left', fill: '#000000', fontSize: 14 });
 162             helptext.font = "Ubuntu Mono";
 163
 164         }
 165
 166         function update () {
 167
 168             game.physics.arcade.collide(player, platforms);
 169             game.physics.arcade.collide(guards, platforms);
 170             game.physics.arcade.collide(player, guards, interaction_handler);
 171
 172             if (player.pushed)
 173             {
 174                 if ((game.time.now - player.pushed) > 1000)
 175                     player.pushed = 0;
 176             }
 177             else
 178             {
 179                 player.body.velocity.x = 0;
 180             }
 181
 182             if (keyboard_handler) keyboard_handler();
 183
 184         }
 185
 186         function keyPress_default() {
 187
 188             if (cursors.left.isDown)
 189             {
 190                 player.body.velocity.x = -150;
 191                 player.scale.x = - Math.abs(player.scale.x);
 192             }
 193             else if (cursors.right.isDown)
 194             {
 195                 player.body.velocity.x = 150;
 196                 player.scale.x = Math.abs(player.scale.x);
 197             }
 198             else if (game.input.keyboard.isDown(Phaser.Keyboard.SPACEBAR) && ((game.time.now - lastkeytime) > WAIT_KEY))
 199             {
 200                 if (player.shape == SHAPE_GIRL)
 201                 {
 202                     player.shape = SHAPE_GOAT;
 203                     player.loadTexture('player_goat');
 204                 }
 205                 else if ((player.shape == SHAPE_GOAT) && (player.learnedBird))
 206                 {
 207                     player.shape = SHAPE_BIRD;
 208                     player.loadTexture('player_bird');
 209                 }
 210                 else
 211                 {
 212                     player.shape = SHAPE_GIRL;
 213                     player.loadTexture('player_girl');
 214                 }
 215
 216                 player.body.setSize(player.texture.width, player.texture.height);
 217                 if ((ground.y - player.y) < player.body.halfHeight)
 218                     player.y = ground.y - player.body.halfHeight;
 219
 220                 lastkeytime = game.time.now;
 221             }
 222
 223             if ((cursors.up.isDown) && (player.shape == SHAPE_BIRD))
 224             {
 225                 player.body.velocity.y = -200;
 226             }
 227
 228         }
 229
 230         function keyPress_indialogue() {
 231
 232             if (game.input.keyboard.isDown(Phaser.Keyboard.SPACEBAR) && ((game.time.now - lastkeytime) > WAIT_KEY))
 233             {
 234                 var dialogue = actual_dialogue.dialogue;
 235                 if (dialogue[actual_dialogue.state + 1])
 236                 {
 237                     var nextState = ++actual_dialogue.state;
 238                     var actor = null;
 239                     if (dialogue[nextState].actor == 'player') actor = actual_dialogue.player;
 240                     else if (dialogue[nextState].actor == 'guard') actor = actual_dialogue.guard;
 241
 242                     actual_dialogue.lastText.kill();
 243                     actual_dialogue.lastText = putText(actor, dialogue[nextState].text);
 244                     lastkeytime = game.time.now;
 245                 }
 246                 else
 247                 {
 248                     leaveDialogue();
 249                     lastkeytime = game.time.now;
 250                 }
 251             }
 252
 253         }
 254
 255         function putText(entity, text) {
 256             var textObject = game.add.text(entity.x, entity.y - (entity.height / 2) - 30, text, { align: 'center', fontSize: 14 });
 257             textObject.font = 'Ubuntu Mono';
 258             textObject.anchor.setTo(.5,.5);
 259             return textObject;
 260         }
 261
 262         function interaction(player, guard) {
 263
 264             console.log('Interaction with ' + guard.key);
 265             player.body.velocity.x = -100;
 266             player.pushed = game.time.now;
 267             guard.body.velocity.x = 0;
 268
 269             if (player.shape == SHAPE_GIRL)
 270             {
 271                 if ((guard == guard1) && (guard.dialogues.girl == dialogue_guard1_girl))
 272                     helptext.text = helptext.text + "\nPress SPACE to progress dialogue.";
 273                 enterDialogue(player, guard, guard.dialogues.girl);
 274             }
 275             else if (player.shape == SHAPE_GOAT)
 276             {
 277                 enterDialogue(player, guard, guard.dialogues.goat);
 278             }
 279             else if (player.shape == SHAPE_BIRD)
 280             {
 281                 enterDialogue(player, guard, guard.dialogues.bird);
 282             }
 283
 284         }
 285
 286         function enterDialogue(player, guard, dialogue) {
 287
 288             var actor = null;
 289             if (dialogue[0].actor == 'player') actor = player;
 290             else if (dialogue[0].actor == 'guard') actor = guard;
 291
 292             var lastText = putText(actor, dialogue[0].text);
 293             actual_dialogue = { player: player, guard: guard, dialogue: dialogue, state: 0 , lastText: lastText };
 294             keyboard_handler = keyPress_indialogue;
 295             interaction_handler = null;
 296
 297         }
 298
 299         function leaveDialogue() {
 300
 301             actual_dialogue.lastText.kill();
 302             if (actual_dialogue.dialogue == dialogue_guard1_girl)
 303             {
 304                 helptext.text = helptext.text + "\nPress SPACE to shapeshift.";
 305                 guard1.dialogues.girl = dialogue_guard1_girl_retry;
 306             }
 307             else if (actual_dialogue.dialogue == dialogue_guard1_goat)
 308             {
 309                 guard1.kill();
 310             }
 311             else if (actual_dialogue.dialogue == dialogue_guard2_girl)
 312             {
 313                 guard2.kill();
 314                 birdcage.kill();
 315                 player.learnedBird = true;
 316             }
 317             else if (actual_dialogue.dialogue == dialogue_guard3_girl)
 318             {
 319                 guard3.dialogues.girl = dialogue_guard3_girl_retry;
 320             }
 321             else if (actual_dialogue.dialogue == dialogue_guard4_goat)
 322             {
 323                 guard4.dialogues.goat = dialogue_guard4_goat_retry;
 324                 guard4.dialogues.girl = dialogue_guard4_goat_retry;
 325                 guard4.dialogues.bird = dialogue_guard4_goat_retry;
 326             }
 327
 328             actual_dialogue = null;
 329             keyboard_handler = keyPress_default;
 330             interaction_handler = interaction;
 331
 332         }