We explored FIT scale mode in previous article. We already did most of the base work for calculating and scaling sprites and texts and respositioning them in the scene view area so let see how much of additional code do we need to add in order to change our game from FIT to RESIZE scale mode.
First we need to change game config as following
|
1 2 3 4 5 6 7 8 9 10 11 12 13 |
let config = { type: Phaser.AUTO, scale: { parent: 'mygame', mode: Phaser.Scale.RESIZE, width: '100%', height: '100%' }, backgroundColor: 0xFF0000, scene: TheGame } let game = new Phaser.Game(config); |
Now we need to add a resize event in our create method as following
|
1 |
this.scale.on('resize', this.resize, this); |
Create resize method as following
|
1 2 3 4 5 6 7 |
resize(gameSize, baseSize, displaySize, resolution) { let width = gameSize.width; let height = gameSize.height; this.cameras.resize(width, height); this.positionControls(width, height); } |
In resize method we retrieve width and height of the game from “gameSize”. We will reposition the controls by simply calling “positionControls”. This change is made for both scenes. See below for the complete code of both scenes (All changes in the code from FIT mode is marked)
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 |
class TheGame extends Phaser.Scene { constructor() { super("TheGame"); } preload() { this.load.spritesheet("pegs", "images/pegs.png", { frameWidth: 60, frameHeight: 60 }); } create() { this.boardDef = [ [-1, -1, 1, 1, 1, -1, -1], [-1, -1, 1, 1, 1, -1, -1], [1, 1, 1, 1, 1, 1, 1], [1, 1, 1, 0, 1, 1, 1], [1, 1, 1, 1, 1, 1, 1], [-1, -1, 1, 1, 1, -1, -1], [-1, -1, 1, 1, 1, -1, -1] ]; // If a Game Object is clicked on, this event is fired. // We can use it to emit the 'clicked' event on the game object itself. this.input.on('gameobjectup', function (pointer, gameObject) { gameObject.emit('clicked', gameObject); }, this); // add our sprites this.board = []; this.selectedPeg = null; this.movesCount = 0; this.isMoving = false; for (let i = 0, len = this.boardDef.length; i < len; i++) { let r = this.boardDef[i]; let row = []; this.board.push(row); for (let j = 0, cnt = r.length; j < cnt; j++) { let c = r[j]; if (c >= 0) { let cell = this.add.image(-900, -900, "pegs"); cell.setFrame(c > 0 ? 1 : 0); cell.setOrigin(0); // enable input events cell.setInteractive(); cell.on('clicked', this.clickPeg, this); cell.gridX = i; cell.gridY = j; row.push(cell); } else { row.push(null); } } } this.movesLabel = this.add.text(-900, -900, 'Moves: ' + this.movesCount, { fontFamily: "Arial Black", fontSize: 40, color: "#fff" }); this.movesLabel.setShadow(2, 2, 'rgba(0, 0, 0, 0.5)', 2); this.tempPeg = this.add.sprite(-200, -200, "pegs"); this.tempPeg.setFrame(1); this.tempPeg.setOrigin(0); this.scale.on('resize', this.resize, this); let gameWidth = this.cameras.main.width; let gameHeight = this.cameras.main.height; this.positionControls(gameWidth, gameHeight); } positionControls(width, height) { // 7 pegs + leave space equivalent for 1 peg on each side let pegSize = Math.min(width / 9, height / 9); let pegScale = localScaleManager.scaleSprite(this.tempPeg, pegSize, pegSize, 0, 1, true); let horizontalMargin = (width - 7 * pegSize) / 2; let verticalMargin = (height - 7 * pegSize) / 2; let colsCount = this.board.length; for (let i = 0; i < colsCount; i++) { let col = this.board[i]; for (let j = 0, cnt = col.length; j < cnt; j++) { let c = col[j]; if (c) { localScaleManager.scaleSpriteTo(c, pegScale); c.setPosition(horizontalMargin + i * pegSize, verticalMargin + j * pegSize); } } } localScaleManager.scaleText(this.movesLabel, width, pegSize, Math.min(width, pegSize * 0.2), 1, true); this.movesLabel.setPosition(width / 2 - this.movesLabel.displayWidth / 2, 0); this.pegSize = pegSize; } resize(gameSize, baseSize, displaySize, resolution) { let width = gameSize.width; let height = gameSize.height; this.cameras.resize(width, height); this.positionControls(width, height); } updateMoves(movesCount) { let width = this.cameras.main.width; this.movesLabel.setText('Moves: ' + movesCount); this.movesLabel.setPosition(width / 2 - this.movesLabel.displayWidth / 2, 0); } gameOver() { this.registry.set('gamedata', { movesCount: this.movesCount, remainingPegs: this.remainingPegs() }); this.cameras.main.fade(500); this.time.delayedCall(500, function () { let gameOver = new GameOver('GameOver'); this.scene.add('GameOver', gameOver, true); this.scene.remove('TheGame'); }, [], this) } isAnyValidMove() { let colsCount = this.board.length; for (let i = 0; i < colsCount; i++) { let col = this.board[i]; for (let j = 0, endIndex = col.length - 3; j <= endIndex; j++) { let c1 = col[j]; let c2 = col[j + 1]; let c3 = col[j + 2]; if (c1 && c2 && c3) { if (c1.frame.name !== 0 && c2.frame.name !== 0 && c3.frame.name === 0) return true; if (c1.frame.name === 0 && c2.frame.name !== 0 && c3.frame.name !== 0) return true; } } } let rowsCount = this.board[0].length; for (let i = 0, len = colsCount - 3; i <= len; i++) { let r1 = this.board[i]; let r2 = this.board[i + 1]; let r3 = this.board[i + 2]; for (let j = 0; j < rowsCount; j++) { let c1 = r1[j]; let c2 = r2[j]; let c3 = r3[j]; if (c1 && c2 && c3) { if (c1.frame.name !== 0 && c2.frame.name !== 0 && c3.frame.name === 0) return true; if (c1.frame.name === 0 && c2.frame.name !== 0 && c3.frame.name !== 0) return true; } } } return false; } remainingPegs() { let pegs = 0; for (let i = 0, len = this.board.length; i < len; i++) { let row = this.board[i]; for (let j = 0, cnt = row.length; j < cnt; j++) { let cell = row[j]; if (cell && cell.frame.name !== 0) { pegs++ } } } return pegs; } clickPeg(peg) { if (this.isMoving) return; if (peg.frame.name === 0) { // if we have not selected a peg to jump then no need to move any further if (!this.selectedPeg) return; let clickedX = peg.gridX; let clickedY = peg.gridY; let selectedX = this.selectedPeg.gridX; let selectedY = this.selectedPeg.gridY; if ((clickedX + 2 === selectedX || clickedX - 2 === selectedX) && clickedY === selectedY) { // move horizontal let pegToRemove = this.board[(selectedX + clickedX) / 2][clickedY]; if (pegToRemove.frame.name === 0) return; this.updateMoves(++this.movesCount); this.removePeg(this.tempPeg, this.selectedPeg, peg, pegToRemove); this.selectedPeg.setFrame(0); this.selectedPeg = null; } else if ((clickedY + 2 === selectedY || clickedY - 2 === selectedY) && clickedX === selectedX) { // move vertical let pegToRemove = this.board[clickedX][(selectedY + clickedY) / 2]; if (pegToRemove.frame.name === 0) return; this.updateMoves(++this.movesCount); this.removePeg(this.tempPeg, this.selectedPeg, peg, pegToRemove); this.selectedPeg.setFrame(0); this.selectedPeg = null; } } else { if (this.selectedPeg) { if (peg === this.selectedPeg) { peg.setFrame(1); this.selectedPeg = null; } else { this.selectedPeg.setFrame(1); this.selectedPeg = peg; peg.setFrame(2); } } else { this.selectedPeg = peg; peg.setFrame(2); } } } removePeg(tempPeg, selectedPeg, targetPeg, pegToRemove) { tempPeg.setPosition(selectedPeg.x, selectedPeg.y); tempPeg.targetPeg = targetPeg; tempPeg.removePeg = pegToRemove; tempPeg.visible = true; var self = this; this.isMoving = true; this.pegTween = this.tweens.add({ targets: tempPeg, x: targetPeg.x, y: targetPeg.y, duration: 200, delay: 50, onStart: function (tween) { let sprite = tween.targets[0]; sprite.removePeg.setFrame(0); }, onComplete: function (tween) { self.isMoving = false; let sprite = tween.targets[0]; sprite.targetPeg.setFrame(1); sprite.visible = false; if (!self.isAnyValidMove()) { self.cameras.main.shake(2000, 0.005); // second parameter is just the shake intensity let timedEvent = self.time.addEvent({ delay: 2000, callbackScope: this, callback: function () { self.gameOver(); } }); } } }); } } class GameOver extends Phaser.Scene { constructor() { super("GameOver"); } preload() { this.load.image("restart", "images/restart.png"); } create() { let gamedata = this.registry.get('gamedata'); this.messageText = this.add.text(-900, -900, 'Game Over', { fontFamily: "Arial Black", fontSize: 40, color: "#fff" }); this.movesText = this.add.text(-900, -900, 'Moves: ' + gamedata.movesCount, { fontFamily: "Arial Black", fontSize: 40, color: "#fff" }); if (gamedata.remainingPegs > 1) { this.remainingPegsText = this.add.text(-900, -900, 'Remaining Pegs: ' + gamedata.remainingPegs, { fontFamily: "Arial Black", fontSize: 40, color: "#ffff00" }); } let btn = this.add.image(-900, -900, 'restart'); btn.setInteractive(); btn.on('pointerup', this.startGame, this); this.restartButton = btn; this.scale.on('resize', this.resize, this); let gameWidth = this.cameras.main.width; let gameHeight = this.cameras.main.height; this.positionControls(gameWidth, gameHeight); } positionControls(width, height) { // 20% height for messageText // 20% for movesText // 20% for remainingPegsText // 25% for restartButton localScaleManager.scaleText(this.messageText, width, height * 0.20, Math.min(width, height * 0.20) * 0.1, 1, false); this.messageText.setPosition(width / 2 - this.messageText.displayWidth / 2, height * 0.15); localScaleManager.scaleText(this.movesText, width, height * 0.20, Math.min(width, height * 0.20) * 0.1, 1, false); this.movesText.setPosition(width / 2 - this.movesText.displayWidth / 2, height * 0.35); if (this.remainingPegsText) { localScaleManager.scaleText(this.remainingPegsText, width, height * 0.20, Math.min(width, height * 0.20) * 0.1, 1, false); this.remainingPegsText.setPosition(width / 2 - this.remainingPegsText.displayWidth / 2, height * 0.55); } localScaleManager.scaleSprite(this.restartButton, width, height * 0.25, Math.min(width, height * 0.20) * 0.1, 1, true); this.restartButton.setPosition(width / 2, height * 0.825); } resize(gameSize, baseSize, displaySize, resolution) { let width = gameSize.width; let height = gameSize.height; this.cameras.resize(width, height); this.positionControls(width, height); } startGame() { this.time.delayedCall(100, function () { let theGame = new TheGame('TheGame'); this.scene.add('TheGame', theGame, true); this.scene.remove('GameOver'); }, [], this) } } |
We also need to change tweens since they are used for moving sprites. If tweens are running while game is resized, then we need to change target position of those tweens to point to new calculated positions. The alternate solution would be to keep a reference of tweens and cancel tweens on resize event. We can then simply reposition controls in the game to their new positions. We will look at that in the next article. If we are cancelling tweens then we also need to plan for events associated with the tweens such as onComplete especially if it contains important logic which should be executed after tweens are finished running.
Check out the game in your browser window here. Try resizing it in your browser window to see scaling at work.
You can play the game here