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 Guard extends Phaser.Sprite {
  67             constructor(x, y, sprite, dialogues) {
  68                 //var guard = game.add.sprite(x, y, sprite);
  69                 super(game, x, y, sprite);
  70                 this.anchor.setTo(.5,.5);
  71                 this.scale.x = 0.5;
  72                 this.scale.y = this.scale.x;
  73                 this.dialogues = dialogues;
  74                 guards.add(this);
  75             }
  76
  77             enablePhysics() {
  78                 game.physics.arcade.enable(this);
  79                 this.body.bounce.y = 0.2;
  80                 this.body.bounce.x = 0.2;
  81                 this.body.gravity.y = 300;
  82                 this.body.collideWorldBounds = true;
  83             }
  84         }
  85
  86         function sign(n) {
  87             if (n >= 0) { return 1 } else { return -1 };
  88         }
  89
  90         function preload () {
  91
  92             game.load.image('ground', 'ground.png');
  93             game.load.image('player_girl', 'csaj.png');
  94             game.load.image('player_goat', 'kecskecsaj.png');
  95             game.load.image('player_bird', 'bird.png');
  96             game.load.image('guard', 'guard.png');
  97             game.load.image('birdcage', 'birdcage.png');
  98
  99         }
 100
 101         function create () {
 102
 103             game.world.setBounds(0, 0, 2800, 600);
 104             game.stage.backgroundColor = 0xffffff;
 105             game.physics.startSystem(Phaser.Physics.ARCADE);
 106
 107             platforms = game.add.group();
 108             platforms.classType = Phaser.TileSprite;
 109             platforms.enableBody = true;
 110
 111
 112             ground = game.add.tileSprite(0, game.world.height - 80, game.world.width, 200, 'ground');
 113             platforms.add(ground);
 114             ground.body.immovable = true;
 115
 116
 117             player = game.add.sprite(64, game.world.height - 200, 'player_girl');
 118             player.anchor.setTo(.4,.5);
 119             player.scale.x = 0.5;
 120             player.scale.y = player.scale.x;
 121             game.physics.arcade.enable(player);
 122             player.body.bounce.y = 0.2;
 123             player.body.bounce.x = 0.2;
 124             player.body.gravity.y = 300;
 125             player.body.collideWorldBounds = true;
 126             player.pushed = 0;
 127             player.shape = SHAPE_GIRL;
 128             player.learnedBird = false;
 129             game.camera.follow(player);
 130
 131             guards = game.add.group();
 132             guard1 = new Guard(600, game.world.height - 200, 'guard',
 133                 { girl: dialogue_guard1_girl, goat: dialogue_guard1_goat });
 134             guard2 = new Guard(1000, game.world.height - 200, 'player_girl',
 135                 { girl: dialogue_guard2_girl, goat: dialogue_guard2_goat });
 136             guard2.scale.x = -guard2.scale.x;
 137             guard3 = new Guard(1400, game.world.height - 200, 'guard',
 138                 { girl: dialogue_guard3_girl, goat: dialogue_guard3_goat, bird: dialogue_guard3_bird });
 139             guard4 = new Guard(2400, game.world.height - 200, 'player_goat',
 140                 { girl: dialogue_guard4_girl, goat: dialogue_guard4_goat, bird: dialogue_guard4_girl });
 141             guard4.scale.x = -guard4.scale.x;
 142             guards.children.forEach(function(guard) { guard.enablePhysics(); });
 143
 144             birdcage = game.add.sprite(1100, game.world.height - 300, 'birdcage');
 145             birdcage.scale.x = 0.5;
 146             birdcage.scale.y = birdcage.scale.x;
 147
 148             cursors = game.input.keyboard.createCursorKeys();
 149
 150             keyboard_handler = keyPress_default;
 151             interaction_handler = interaction;
 152
 153             helptext = game.add.text(80, 30, "Press ARROWS to move.", { align: 'left', fill: '#000000', fontSize: 14 });
 154             helptext.font = "Ubuntu Mono";
 155
 156         }
 157
 158         function update () {
 159
 160             game.physics.arcade.collide(player, platforms);
 161             game.physics.arcade.collide(guards, platforms);
 162             game.physics.arcade.collide(player, guards, interaction_handler);
 163
 164             if (player.pushed)
 165             {
 166                 if ((game.time.now - player.pushed) > 1000)
 167                     player.pushed = 0;
 168             }
 169             else
 170             {
 171                 player.body.velocity.x = 0;
 172             }
 173
 174             if (keyboard_handler) keyboard_handler();
 175
 176         }
 177
 178         function keyPress_default() {
 179
 180             if (cursors.left.isDown)
 181             {
 182                 player.body.velocity.x = -150;
 183                 player.scale.x = - Math.abs(player.scale.x);
 184             }
 185             else if (cursors.right.isDown)
 186             {
 187                 player.body.velocity.x = 150;
 188                 player.scale.x = Math.abs(player.scale.x);
 189             }
 190             else if (game.input.keyboard.isDown(Phaser.Keyboard.SPACEBAR) && ((game.time.now - lastkeytime) > WAIT_KEY))
 191             {
 192                 if (player.shape == SHAPE_GIRL)
 193                 {
 194                     player.shape = SHAPE_GOAT;
 195                     player.loadTexture('player_goat');
 196                 }
 197                 else if ((player.shape == SHAPE_GOAT) && (player.learnedBird))
 198                 {
 199                     player.shape = SHAPE_BIRD;
 200                     player.loadTexture('player_bird');
 201                 }
 202                 else
 203                 {
 204                     player.shape = SHAPE_GIRL;
 205                     player.loadTexture('player_girl');
 206                 }
 207
 208                 player.body.setSize(player.texture.width, player.texture.height);
 209                 if ((ground.y - player.y) < player.body.halfHeight)
 210                     player.y = ground.y - player.body.halfHeight;
 211
 212                 lastkeytime = game.time.now;
 213             }
 214
 215             if ((cursors.up.isDown) && (player.shape == SHAPE_BIRD))
 216             {
 217                 player.body.velocity.y = -200;
 218             }
 219
 220         }
 221
 222         function keyPress_indialogue() {
 223
 224             if (game.input.keyboard.isDown(Phaser.Keyboard.SPACEBAR) && ((game.time.now - lastkeytime) > WAIT_KEY))
 225             {
 226                 var dialogue = actual_dialogue.dialogue;
 227                 if (dialogue[actual_dialogue.state + 1])
 228                 {
 229                     var nextState = ++actual_dialogue.state;
 230                     var actor = null;
 231                     if (dialogue[nextState].actor == 'player') actor = actual_dialogue.player;
 232                     else if (dialogue[nextState].actor == 'guard') actor = actual_dialogue.guard;
 233
 234                     actual_dialogue.lastText.kill();
 235                     actual_dialogue.lastText = putText(actor, dialogue[nextState].text);
 236                     lastkeytime = game.time.now;
 237                 }
 238                 else
 239                 {
 240                     leaveDialogue();
 241                     lastkeytime = game.time.now;
 242                 }
 243             }
 244
 245         }
 246
 247         function putText(entity, text) {
 248             var textObject = game.add.text(entity.x, entity.y - (entity.height / 2) - 30, text, { align: 'center', fontSize: 14 });
 249             textObject.font = 'Ubuntu Mono';
 250             textObject.anchor.setTo(.5,.5);
 251             return textObject;
 252         }
 253
 254         function interaction(player, guard) {
 255
 256             console.log('Interaction with ' + guard.key);
 257             player.body.velocity.x = -100;
 258             player.pushed = game.time.now;
 259             guard.body.velocity.x = 0;
 260
 261             if (player.shape == SHAPE_GIRL)
 262             {
 263                 if ((guard == guard1) && (guard.dialogues.girl == dialogue_guard1_girl))
 264                     helptext.text = helptext.text + "\nPress SPACE to progress dialogue.";
 265                 enterDialogue(player, guard, guard.dialogues.girl);
 266             }
 267             else if (player.shape == SHAPE_GOAT)
 268             {
 269                 enterDialogue(player, guard, guard.dialogues.goat);
 270             }
 271             else if (player.shape == SHAPE_BIRD)
 272             {
 273                 enterDialogue(player, guard, guard.dialogues.bird);
 274             }
 275
 276         }
 277
 278         function enterDialogue(player, guard, dialogue) {
 279
 280             var actor = null;
 281             if (dialogue[0].actor == 'player') actor = player;
 282             else if (dialogue[0].actor == 'guard') actor = guard;
 283
 284             var lastText = putText(actor, dialogue[0].text);
 285             actual_dialogue = { player: player, guard: guard, dialogue: dialogue, state: 0 , lastText: lastText };
 286             keyboard_handler = keyPress_indialogue;
 287             interaction_handler = null;
 288
 289         }
 290
 291         function leaveDialogue() {
 292
 293             actual_dialogue.lastText.kill();
 294             if (actual_dialogue.dialogue == dialogue_guard1_girl)
 295             {
 296                 helptext.text = helptext.text + "\nPress SPACE to shapeshift.";
 297                 guard1.dialogues.girl = dialogue_guard1_girl_retry;
 298             }
 299             else if (actual_dialogue.dialogue == dialogue_guard1_goat)
 300             {
 301                 guard1.kill();
 302             }
 303             else if (actual_dialogue.dialogue == dialogue_guard2_girl)
 304             {
 305                 guard2.kill();
 306                 birdcage.kill();
 307                 player.learnedBird = true;
 308             }
 309             else if (actual_dialogue.dialogue == dialogue_guard3_girl)
 310             {
 311                 guard3.dialogues.girl = dialogue_guard3_girl_retry;
 312             }
 313             else if (actual_dialogue.dialogue == dialogue_guard4_goat)
 314             {
 315                 guard4.dialogues.goat = dialogue_guard4_goat_retry;
 316                 guard4.dialogues.girl = dialogue_guard4_goat_retry;
 317                 guard4.dialogues.bird = dialogue_guard4_goat_retry;
 318             }
 319
 320             actual_dialogue = null;
 321             keyboard_handler = keyPress_default;
 322             interaction_handler = interaction;
 323
 324         }