forked from: drawTraingles() Cubes
/**
* Copyright dizgid ( http://wonderfl.net/user/dizgid )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/3Pa0
*/
// forked from shapevent's drawTraingles() Cubes
package {
import flash.display.*
import flash.events.*;
import flash.geom.*;
import flash.utils.*;
[SWF(backgroundColor = 0x000000, width=500, height=500)]
public class World3D extends Sprite {
// standard Vectors for using drawTriangles
private var _verts:Vector.<Number> = new Vector.<Number>();
private var _pVerts:Vector.<Number>;
private var _uvts:Vector.<Number> = new Vector.<Number>();
private var _indices:Vector.<int> = new Vector.<int>();
// needed for z-sorting
private var _sortedIndices:Vector.<int>;
private var _faces:Array = [];
// we'll use this for tranforming points
// and as the transformation matrix for our render
private var _m:Matrix3D = new Matrix3D();
private var _boxIndex:int = 0;
private var _tex:BitmapData;
private var _persp:PerspectiveProjection;
private var _proj:Matrix3D;
private var _dx:Number = 0;
private var _dy:Number = 0;
public function World3D(){
init();
}
private function init():void{
x = stage.stageWidth / 2;
y = stage.stageHeight / 2;
// create geometry and populate Vectors
addBox(0,0,0, 20, 20, 20);
addBox(0,0,50, 10, 10, 10);
addBox(30,0,50, 3, 3, 3);
addBox(30,0,55, 3, 3, 3);
addBox(30,0,60, 3, 3, 3);
addBox(0,0,-50, 10, 10, 10);
addBox(0,-40,0, 10, 10, 10);
addBox(14,-40,0, 10, 10, 5);
addBox(0,0,15, 10, 10, 3);
addBox(0,0,25, 10, 10, 3);
addBox(-22,0,0, 15, 15, 15);
addBox(-37,0,0, 10, 10, 10);
addBox(5,30,5, 10, 5, 10);
addBox(-5,35,-5, 10, 5, 10);
addBox(0,20,0, 5, 5, 5);
addBox(20,0,0, 5, 5, 5);
addBox(30,0,0, 5, 5, 5);
addBox(40,0,0, 5, 5, 5);
addBox(30,20,0, 25, 5, 5);
_sortedIndices = new Vector.<int>(_indices.length, true);
_verts.fixed = true, _uvts.fixed = true, _indices.fixed = true
_pVerts = new Vector.<Number>(_verts.length / 3 * 2, true);
// create texture
_tex = new BitmapData(400,400,false, 0x000000);
var grad:Sprite = new Sprite();
var mat:Matrix = new Matrix();
mat.createGradientBox(400,400,0,0,0);
with (grad.graphics){
beginGradientFill(GradientType.LINEAR, [0xFFFFFF,0x002244], [1, 1], [0, 255], mat);
drawRect(0,0,400,400);
}
_tex.perlinNoise(500,500,2,100,false,false,1,true);
_tex.draw(grad,null, null, BlendMode.HARDLIGHT);
// perspective
_persp = new PerspectiveProjection();
_persp.fieldOfView = 45;
// projection matrix
_proj = _persp.toMatrix3D();
addEventListener(Event.ENTER_FRAME, onLoop);
}
private function addBox(xp:Number, yp:Number, zp:Number, w:Number, h:Number, leng:Number):void{
var hw:Number = w * 0.5;
var hh:Number = h * 0.5;
var hl:Number = leng * 0.5;
_verts.push(-hw + xp, -hh + yp, -hl + zp,
hw + xp, -hh + yp, -hl + zp,
-hw + xp, hh + yp, -hl + zp,
hw + xp, hh + yp, -hl + zp,
-hw + xp, -hh + yp, hl + zp,
hw + xp, -hh + yp, hl + zp,
-hw + xp, hh + yp, hl + zp,
hw + xp, hh + yp, hl + zp);
var i8:int = _boxIndex * 8;
_indices.push(0 + i8, 1 + i8, 2 + i8,
1 + i8, 3 + i8, 2 + i8,
6 + i8, 7 + i8, 4 + i8,
7 + i8, 5 + i8, 4 + i8,
1 + i8, 5 + i8, 3 + i8,
7 + i8, 3 + i8, 5 + i8,
4 + i8, 5 + i8, 0 + i8,
1 + i8, 0 + i8, 5 + i8,
2 + i8, 6 + i8, 0 + i8,
0 + i8, 6 + i8, 4 + i8,
2 + i8, 3 + i8, 6 + i8,
3 + i8, 7 + i8, 6 + i8);
_faces.push(new Face(), new Face(), new Face(),
new Face(), new Face(), new Face(),
new Face(), new Face(), new Face(),
new Face(), new Face(), new Face());
_uvts.push(Math.random(), Math.random(), 0,
Math.random(), Math.random(), 0,
Math.random(), Math.random(), 0,
Math.random(), Math.random(), 0,
Math.random(), Math.random(), 0,
Math.random(), Math.random(), 0,
Math.random(), Math.random(), 0,
Math.random(), Math.random(), 0);
_boxIndex++;
}
private function onLoop(evt:Event):void {
_dx += (mouseX - _dx) / 4;
_dy += (mouseY - _dy) / 4;
_m.identity();
_m.appendRotation(_dy, Vector3D.X_AXIS);
_m.appendRotation(_dx, Vector3D.Y_AXIS);
_m.appendTranslation(0,0,100);
_m.append(_proj);
Utils3D.projectVectors(_m, _verts, _pVerts, _uvts);
var face:Face;
var inc:int = 0;
for (var i:int = 0; i<_indices.length; i+=3){
face = _faces[inc];
face.i0 = _indices[i];
face.i1 = _indices[int(i + 1)];
face.i2 = _indices[int(i + 2)];
var i3:int = i * 3;
face.z = (_uvts[int(face.i0*3 + 2)] + _uvts[int(face.i1*3 + 2)] + _uvts[int(face.i2*3 + 2)]) * 0.333333;
inc++;
}
_faces.sortOn("z", Array.NUMERIC);
inc = 0;
for each (face in _faces){
_sortedIndices[inc++] = face.i0;
_sortedIndices[inc++] = face.i1;
_sortedIndices[inc++] = face.i2;
}
graphics.clear();
//graphics.lineStyle(0,0xFF0000);
graphics.beginBitmapFill(_tex, null, false, false);
graphics.drawTriangles(_pVerts, _sortedIndices, _uvts, TriangleCulling.NEGATIVE);
}
}
}
class Face{
public var i0:Number;
public var i1:Number;
public var i2:Number;
public var z:Number;
}