I’ve been working on a facebook game called Veer (launched on January, 4th, 2012) for my client, Handson Entertainment . In this game, you play as a reporter, like Lois Lane, working for a news station, Veer. You begin your journey in a remote island called “Tuto Island” where you learn the basics of the game and then, as you level up, you will be taken to cities/places such as Paris, Monaco, Zanzibar, Beijing, etc. to hunt for interesting news. Based on your locations and levels/experience, you will have different missions/tasks from finding a missing colleague, locating a run-away celebrity, and so on. Also, you get to visit famous landmarks like The Eiffel and Louvre Museum in Paris.
Archives
10
Jan 12
AS3Isolib Game : Veer
13
Jul 11
as3isolib on playbook, first look
I got a playbook (for free … yay!) from a RIM dev partner a few days ago and I couldn’t wait to convert an as3isolib demo i wrote a while ago and see it run on that nice gadget.
So here it is.
05
Feb 11
Making Rotatable IsoGroup
In this article, I will show you how to make a rotatable IsoGroup in As3Isolib. Well, I don’t actually rotate the group but instead, I reposition the group’s children so that the group appears to be rotated. 
If you’re new to As3Isolib, you can learn a bit about the basics here. If you know the library already, you might want to skip step 1.
Basic steps:
- Subclass the
IsoGroup - Map the group’s children’s positions to a 2d array
- Add rotation logic
- Rotate the array
- Use the array to reposition the children
- Render
What I need:
- as3ds Array2 class
- an algorithm to rotate a 2d rectangular array. Just google it. It’s everywhere
23
Jan 11
SpriteSheet class for AS3Isolib
One of the requirements of my latest as3isolib project was to have “realistic” looks for all objects. The only way to achieve this is use bitmap assets so I paid a friend who’s really good at making animated 3d models to create animated assets for me and render them as PNG sprite sheets. Another thing I had to do was blit the sheets but there’s no built-in bitmap blitter class in as3isolib that I could use so I wrote the SpriteSheet class below.
|
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 |
package iso { import de.polygonal.ds.Array2; import iso.Directions; import flash.display.Bitmap; import flash.display.BitmapData; import flash.display.DisplayObject; import flash.display.Sprite; import flash.events.Event; import flash.geom.Point; import flash.geom.Rectangle; import flash.utils.getTimer; /** * Bitmap-blitter. The source must be a bitmap or sprite with 8 rows representing 8 directions. * Each row contains an animation cycle where column 0 is for idle state. * * @author Anggie Bratadinata */ public class SpriteSheet extends Sprite { //rendering interval public static const RENDER_INTERVAL:Number = 64; //bitmap frames protected var _bitmapArray:Array2; //sheet source protected var _source:DisplayObject; //frame size protected var _frameWidth:Number; protected var _frameHeight:Number; //the rendered bitmap protected var _frameBitmap:Bitmap; protected var _frameRect:Rectangle; //current facing direction protected var _direction:String; //current frame row protected var _currentRow:Array; protected var _currentColNum:Number; //render timer protected var _oldTime:Number = 0; protected var _renderInterval:Number; //is the south-facing sequence on the first row (true) or not (false)? protected var _southFirst:Boolean; //the visual state protected var _isIdle:Boolean; //if true, a new bitmap will be generated protected var _isDirty:Boolean; public function SpriteSheet() { } /** * Build the sprite sheet. The source must contain 8 rows of animation frames arranged in clockwise order. * The first row can be the south face or the south west. A tool like SpriteForge renders tilesheets * with the south-facing sequence on the first row. * * Acceptable row arrangements : S,SW,W,NW,N,NE,E,SE or SW,W,NW,N,NE,E,SE,S * * @param source The source Display object. * @param frameWidth animation frame width * @param frameHeight animation frame height * @param renderInterval delay between renders. This defines the animation blitting speed in milliseconds * @param southFirst the south-facing sequence is on the first row (true) or the last (false). * */ public function build(source:DisplayObject, frameWidth:Number, frameHeight:Number, renderInterval:Number = SpriteSheet.RENDER_INTERVAL, southFirst:Boolean = true):void { _source = source; _frameWidth = frameWidth; _frameHeight = frameHeight; _renderInterval = renderInterval; _southFirst = southFirst; var sourceBd:BitmapData = new BitmapData(source.width, source.height, true, 0×00000000); sourceBd.draw(source, null, null, null, null, true); var numCols:Number = Math.floor(source.width / frameWidth); var numRows:Number = Math.floor(source.height / frameHeight); _frameRect = new Rectangle(0, 0, frameWidth, frameHeight); _bitmapArray = new Array2(numCols, numRows); for (var i:int = 0; i < numRows; i++) { for (var j:int = 0; j < numCols; j++) { var bd:BitmapData = new BitmapData(frameWidth, frameHeight, true, 0×000000); _frameRect.x = j * frameWidth; _frameRect.y = i * frameHeight; bd.copyPixels(sourceBd, _frameRect, new Point(0, 0)); _bitmapArray.set(j, i, bd); } } _frameRect.x = 0; _frameRect.y = 0; //if the south faces is on the last row, move it to the first if (!_southFirst) { _bitmapArray.shiftDown(); } setDirection(Directions.S); idle(); _oldTime = getTimer(); addEventListener(Event.ENTER_FRAME, onEnterFrame); } /** * Set the state to idle */ public function idle():void { _isIdle = true; _isDirty = true; }; /** * Set the state to walk/animated * */ public function action():void { _isIdle = false; _isDirty = true; }; protected function onEnterFrame(e:Event = null):void { var elapsed:Number = getTimer() - _oldTime; if (elapsed >= _renderInterval && _isDirty) { render(); _oldTime = getTimer(); } } protected function render():void { if (_frameBitmap == null) { _frameBitmap = new Bitmap(new BitmapData(_frameWidth, _frameHeight, true, 0×00000000)); addChild(_frameBitmap); } _frameBitmap.bitmapData.lock(); if (_isIdle) { _currentColNum = 0; _frameBitmap.bitmapData.copyPixels(_currentRow[_currentColNum], _frameRect, new Point(0, 0), null, null, false); //trace(this + “render idle”); _isDirty = false; } else { if (_currentColNum < _currentRow.length-1) { try { _frameBitmap.bitmapData.copyPixels(_currentRow[_currentColNum], _frameRect, new Point(0, 0), null, null, false); }catch (error:Error) { //trace(“ERROR RENDERING : ” + _currentColNum); return; } _currentColNum++; } else { _currentColNum = 1; } _isDirty = true; } _frameBitmap.bitmapData.unlock(); } /** * Set the active direction and make _currentRow point to a specific row in _bitmapArray * @param direction */ public function setDirection(direction:String):void { //trace(this +“set direction : ” +direction); _direction = direction; var rowNum:Number; switch (direction) { case Directions.S: rowNum = 0; break; case Directions.SW: rowNum = 1; break; case Directions.W: rowNum = 2; break; case Directions.NW: rowNum = 3; break; case Directions.N: rowNum = 4; break; case Directions.NE: rowNum = 5; break; case Directions.E: rowNum = 6; break; case Directions.SE: rowNum = 7; break; default: rowNum = 0; } //trace(this + “setDirection, row ” + rowNum); _currentRow = _bitmapArray.getRow(rowNum); _isDirty = true; render(); } /** * Get currently rendered frame * * @return Bitmap */ public function getFrameBitmap():Bitmap { return _frameBitmap; } /** * Get current direction * @return */ public function getDirection():String { return _direction; }; } } |
Next, I’ll explain how to create your sheets.
24
May 10
Creating Drag-and-Drop for AS3 Isolib
Some folks had asked about drag-and-drop mechanism in as3isolib discussion group. While there’s no such feature built-in in the library, it’s not hard to write it yourself.
So here’s a super simple class that provides that mechanism, called DragManager. I borrowed the idea from Flex’s DragManager. Note that this class is really a simple one and it doesn’t respect “grid” so you’ll have to modify it if you want to use it in a grid-based isometric space. Trust me, it’s not too hard 
Click to see the demo