/**
* Copyright mutantleg ( http://wonderfl.net/user/mutantleg )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/cVdj
*/
package {
import flash.ui.Keyboard;
import flash.geom.*;
import flash.display.*;
import flash.utils.ByteArray;
import flash.events.*;
import flash.text.TextField;
import com.adobe.utils.AGALMiniAssembler;
import flash.display3D.*;
import flash.display3D.textures.Texture;
public class FlashTest extends Sprite {
public static var deb:TextField;
public var deb2:TextField;
public function FlashTest() {
deb = new TextField();
addChild(deb);
deb.width = 400;
deb.text = " debug ";
deb.y = 250;
deb2 = new TextField();
addChild(deb2);
deb2.width= 400;
deb2.text = "debug2";
deb2.y = 300;
if (stage) init();
else addEventListener(Event.ADDED_TO_STAGE, init);
}//ctor
public function init(e:Event=null):void
{
removeEventListener(Event.ADDED_TO_STAGE, init);
//if (stage == null) { deb.text = "stage null"; }
// else { deb.text = "stage exist"; }
//deb.text = "stage > " + stage.stage3Ds[0];
stage.stage3Ds[0].addEventListener(Event.CONTEXT3D_CREATE, contReady);
stage.stage3Ds[0].addEventListener(ErrorEvent.ERROR, onError);
stage.stage3Ds[0].requestContext3D(Context3DRenderMode.AUTO);
// deb.text = " reach ";
}//init
private var context:Context3D;
public function onError(e:ErrorEvent):void
{
deb.text = e.text;
deb.textColor = 0xFF0000FF;
}//onerror
public function contReady(e:Event):void
{
deb.text = "context ready ";
context = stage.stage3Ds[0].context3D;
deb.text = context.driverInfo;
//deb.textColor = 0xFFffFFff;
context.addEventListener(ErrorEvent.ERROR, onError);
context.configureBackBuffer(200, 200, 2, true);
initProgram(context);
myTex = new wTex();
myTex.genTex(myTex.getXor(64,64), context);
ptex = new wTex();
ptex.genTex(new BitmapData(32,32,false,0xFFffFFff),context);
geo = new wGeo();
//geo.makeSprite();
// geo.makeCube();
geo.makeTmap();
geo.upload(context);
pgeo = new wGeo();
pgeo.makeSprite();
pgeo.upload(context);
tmap = new wTileMap();
tmap.makeBuf(context);
tmap.setMap(0,0, 10,10);
tmap.update();
var pic:Bitmap;
pic = new Bitmap(new BitmapData(200,200,false,0));
context.clear();
draw(context);
context.drawToBitmapData(pic.bitmapData);
//context.present();
addChild(pic);
pic.x = 200;
pic.y = 100;
stage.addEventListener(Event.ENTER_FRAME, onEnter);
stage.addEventListener(KeyboardEvent.KEY_DOWN, kdown);
stage.addEventListener(KeyboardEvent.KEY_UP, kup);
}//contready
public var vecKey:Vector.<Boolean> = new Vector.<Boolean>(512, false);
public function kdown(e:KeyboardEvent):void { vecKey[e.keyCode] = true; }
public function kup(e:KeyboardEvent):void { vecKey[e.keyCode] = false; }
public var tmap:wTileMap;
public var prog:Program3D;
public var myTex:wTex;
public var geo:wGeo;
public var pgeo:wGeo;
public var ptex:wTex;
public function initProgram(c:Context3D):void
{
prog = c.createProgram();
var vert:ByteArray;
var frag:ByteArray;
var assembler:AGALMiniAssembler = new AGALMiniAssembler();
var code:String;
code = "";
code += "m44 op, va0, vc0\n";
// code += "m44 v0, va1, vc4\n";
//code += "move v0, va1\n";
code += "m44 v0, va1, vc4\n"
// code += "move v1, va2\n";
vert = assembler.assemble(Context3DProgramType.VERTEX, code);
code = "";
code += "tex ft0 v0, fs0 <2d, linear, miplinear, wrap>\n";
//code += "move oc, v0\n";
code += "mov oc, ft0\n";
//code += "mul oc, ft0, v0\n";
//code += "mul oc, v0, fc0\n";
//code += "move oc, fc0\n";
frag = assembler.assemble(Context3DProgramType.FRAGMENT, code);
prog.upload(vert, frag);
}//initprogram;
public var cx:Number = 0;
public var cy:Number = 2;
public var vx:Number = 0;
public var vy:Number = 0;
public var bOverObst:Boolean = false;
public function onEnter(e:Event):void
{
if (vecKey[Keyboard.UP]) { vy += 0.1; }
if (vecKey[Keyboard.DOWN]) { vy -= 0.1; }
if (vecKey[Keyboard.LEFT]) { vx -= 0.1; }
if (vecKey[Keyboard.RIGHT]) { vx += 0.1; }
vx *= 0.92;
vy *= 0.92;
bOverObst = false;
if (tmap.isWall(cx,cy) ) { bOverObst = true;}
/*
if (vx > 0 && tmap.isWall(cx+0.5,cy) ) { vx = 0; }
if (vx < 0 && tmap.isWall(cx-0.5,cy) ) { vx = 0; }
if (vy > 0 && tmap.isWall(cx,cy+0.5) ) { vy = 0; }
if (vy < 0 && tmap.isWall(cx,cy-0.5) ) { vy = 0; }
*/
cx += vx;
cy += vy;
context.clear();
draw(context);
context.present();
}//onenter
public var projmat:Matrix3D = new Matrix3D();
public var cammat:Matrix3D = new Matrix3D();
public var mat:Matrix3D = new Matrix3D();
public var texMat:Matrix3D = new Matrix3D();
public var ang:Number = 0;
public var spin:Number = 0;
public function draw(c:Context3D):void
{
var color:Vector.<Number> = Vector.<Number>([1.0,1.0,1.0,1.0]);
var raw:Vector.<Number>;
// c.setCulling(Context3DTriangleFace.BACK);
c.setCulling(Context3DTriangleFace.NONE);
c.setProgram(prog);
spin += 5;
mat.identity();
mat.appendTranslation(0,0,0);
// mat.appendRotation(spin, Vector3D.Y_AXIS);
// mat.appendRotation(spin, Vector3D.X_AXIS);
cammat.identity();
// cammat.appendTranslation(0,0, -9); // -2 + Math.cos(ang)-1);
cammat.appendTranslation(-cx, -cy, -9); // -2 + Math.cos(ang)-1);
cammat.appendRotation(30, Vector3D.Z_AXIS);
setProjectionMatrix(projmat,90,1,0.1,100);
raw = cammat.rawData;
deb2.text = "";
deb2.appendText(" cx "+ -cx + " cy " + -cy + " cz " + -9);
deb2.appendText("\n raw " + raw[12] + " " + raw[13] + " " + raw[14]);
calcFrust(90, 1, 0.1, 100,
cx, cy, -9, //-5, //-9,
//-raw[12], -raw[13], raw[14],
/*0,0,1,
0,1,0,
1,0,0);
*/
raw[2], raw[6], raw[10],
raw[1], raw[5], raw[9],
raw[0], raw[4], raw[8]);
/*
raw[8], raw[9], raw[10],
raw[4], raw[5], raw[6],
raw[0], raw[1], raw[2]);
*/
/*
raw[2], raw[6], raw[10],
raw[1], raw[5], raw[9],
raw[0], raw[4], raw[8]);
*/
/*
var temp:Number;
temp = maxy;
maxy = miny;
miny = temp;
*/
deb.text = " ";
deb.appendText("\n x " +minx+ " y " + miny);
deb.appendText("\n x " +maxx+ " y " + maxy);
// tmap.setMap(Math.floor(minx),Math.floor(miny),
// Math.ceil(maxx), Math.ceil(maxy) );
// tmap.setMap(0,0,3,3);
// tmap.setMap(0,0,maxx, -miny);
// tmap.setMap(minx, -maxy, 10,10);
tmap.setMap(minx, -maxy, maxx+1, -miny+1);
tmap.update();
mat.append(cammat);
mat.append(projmat);
ang += 0.03;
var vec:Vector.<Number>;
var s:Number;
texMat.identity();
// texMat.appendTranslation(-0.5,-0.5,0);
//texMat.appendRotation(Math.cos(ang)*180.0, Vector3D.Z_AXIS);
s = Math.sin(ang)+2;
//texMat.appendScale(s,s,s);
// texMat.appendTranslation(0.5,0.5,0);
//draw tilemap (debug)
c.setTextureAt(0, myTex.tex);
c.setProgramConstantsFromMatrix(Context3DProgramType.VERTEX, 0, mat, true);
c.setProgramConstantsFromMatrix(Context3DProgramType.VERTEX, 4, texMat, true);
c.setProgramConstantsFromVector(Context3DProgramType.FRAGMENT, 0, color);
// c.setVertexBufferAt(0, geo.bufVert, 0, Context3DVertexBufferFormat.FLOAT_3);
// c.setVertexBufferAt(1, geo.bufUv, 0, Context3DVertexBufferFormat.FLOAT_2);
// c.drawTriangles(geo.bufFace, 0, geo.numFace);
//draw tilemap
mat.identity();
mat.appendTranslation(0, 0, 0);
mat.append(cammat);
mat.append(projmat);
c.setProgramConstantsFromMatrix(Context3DProgramType.VERTEX, 0, mat, true);
c.setVertexBufferAt(0, tmap.bufVert, 0, Context3DVertexBufferFormat.FLOAT_3);
c.setVertexBufferAt(1, tmap.bufUv, 0, Context3DVertexBufferFormat.FLOAT_2);
c.drawTriangles(tmap.bufFace, 0, tmap.numTile*2);
//draw player
mat.identity();
if (bOverObst) { mat.appendRotation(45, Vector3D.Z_AXIS); }
mat.appendTranslation(cx,cy,0.001);
// if (bOverObst) { mat.appendRotation(45, Vector3D.Z_AXIS); }
mat.append(cammat);
mat.append(projmat);
c.setTextureAt(0, ptex.tex);
c.setProgramConstantsFromMatrix(Context3DProgramType.VERTEX, 0, mat, true);
c.setVertexBufferAt(0, pgeo.bufVert, 0, Context3DVertexBufferFormat.FLOAT_3);
c.setVertexBufferAt(1, pgeo.bufUv, 0, Context3DVertexBufferFormat.FLOAT_2);
c.drawTriangles(pgeo.bufFace, 0, pgeo.numFace);
drawPoint(c,minx, miny);
drawPoint(c,maxx, maxy);
}//draw
public function drawPoint(c:Context3D, wx:Number, wy:Number):void
{
mat.identity();
mat.appendTranslation(wx,wy,0.001);
mat.append(cammat);
mat.append(projmat);
c.setTextureAt(0, ptex.tex);
c.setProgramConstantsFromMatrix(Context3DProgramType.VERTEX, 0, mat, true);
c.setVertexBufferAt(0, pgeo.bufVert, 0, Context3DVertexBufferFormat.FLOAT_3);
c.setVertexBufferAt(1, pgeo.bufUv, 0, Context3DVertexBufferFormat.FLOAT_2);
c.drawTriangles(pgeo.bufFace, 0, pgeo.numFace);
}//drawpoint
public function setProjectionMatrix(m:Matrix3D,
fovdeg:Number = 90.0, aspect:Number=1.0, nearp:Number = 0.1, farp:Number=1000.0):void
{
var vec:Vector.<Number> = m.rawData;
var f:Number;
var i:int;
for (i = 0; i < 16; i++) { vec[i] = 0.0; }
f = 1.0 / Math.tan( (fovdeg * (3.1415 / 180.0)) * 0.5 );
if (nearp == 0) { nearp = 0.0001; }
if (farp == 0) { farp = 0.0001; }
vec[0] = f / aspect;
vec[5] = f;
vec[10] = (farp + nearp) / (nearp - farp);
vec[14] = (2.0 * farp * nearp) / (nearp - farp);
vec[11] = -1.0;
vec[15] = 0.0;
m.rawData = vec;
}//projmatrix
public var minx:Number = 0;
public var miny:Number = 0;
public var maxx:Number = 0;
public var maxy:Number = 0;
public function calcFrust(
fov:Number, aspect:Number, neard:Number, fard:Number,
posx:Number, posy:Number, posz:Number,
frontx:Number, fronty:Number, frontz:Number,
upx:Number, upy:Number, upz:Number,
sidex:Number, sidey:Number, sidez:Number):void
{
var nw:Number;
var nh:Number;
var fw:Number;
var fh:Number;
var tang:Number;
var fupx:Number, fupy:Number, fupz:Number;
var fsidex:Number, fsidey:Number, fsidez:Number;
var nupx:Number, nupy:Number, nupz:Number;
var nsidex:Number, nsidey:Number, nsidez:Number;
var fcx:Number, fcy:Number, fcz:Number;
var ncx:Number, ncy:Number, ncz:Number;
fov *= 3.1415 / 180;
tang = Math.tan ( fov * 0.5 );
nh = neard * tang;
nw = nh * aspect;
fh = fard * tang;
fw = fh * aspect;
fupx = upx * fh;
fupy = upy * fh;
fupz = upz * fh;
fsidex = sidex * fw;
fsidey = sidey * fw;
fsidez = sidez * fw;
nupx = upx * nh;
nupy = upy * nh;
nupz = upz * nh;
nsidex = sidex * nw;
nsidey = sidey * nw;
nsidez = sidez * nw;
fcx = posx + frontx * fard;
fcy = posy + fronty * fard;
fcz = posz + frontz * fard;
ncx = posx + frontx * neard;
ncy = posy + fronty * neard;
ncz = posz + frontz * neard;
var ax:Number;
var ay:Number;
var az:Number;
var bx:Number;
var by:Number;
var bz:Number;
var t:Number;
var kx:Number;
var ky:Number;
var kz:Number;
minx = 999999;
miny = 999999;
maxx = -999999;
maxy = -999999;
ax = ncx + (nupx*1)+(nsidex*1);
ay = ncy + (nupy*1)+(nsidey*1);
az = ncz + (nupz*1)+(nsidez*1);
bx = fcx + (fupx*1)+(fsidex*1);
by = fcy + (fupy*1)+(fsidey*1);
bz = fcz + (fupz*1)+(fsidez*1);
t = (az / -(bz - az));
kx = ax + (bx-ax)*t;
ky = ay + (by-ay)*t;
graphics.drawCircle(kx,ky,4);
//kz = az + (bz-ay)*t;
minx = minx < kx ? minx : kx; // Math.min(minx, kx);
miny = miny < ky ? miny : ky; // Math.min(miny, ky);
maxx = maxx > kx ? maxx : kx; // Math.max(maxx, kx);
maxy = maxy > ky ? maxy : ky; // Math.max(maxx, ky);
graphics.drawCircle(ncx,ncy, 8);
graphics.drawCircle(ax,ay, 4);
graphics.drawCircle(bx,by,2);
ax = ncx + (nupx*-1)+(nsidex*1);
ay = ncy + (nupy*-1)+(nsidey*1);
az = ncz + (nupz*-1)+(nsidez*1);
bx = fcx + (fupx*-1)+(fsidex*1);
by = fcy + (fupy*-1)+(fsidey*1);
bz = fcz + (fupz*-1)+(fsidez*1);
// graphics.drawCircle(bx,by,2);
t = (az / -(bz - az));
kx = ax + (bx-ax)*t;
ky = ay + (by-ay)*t;
// graphics.drawCircle(kx,ky,4);
minx = minx < kx ? minx : kx;
miny = miny < ky ? miny : ky;
maxx = maxx > kx ? maxx : kx;
maxy = maxy > ky ? maxy : ky;
ax = ncx + (nupx*-1)+(nsidex*-1);
ay = ncy + (nupy*-1)+(nsidey*-1);
az = ncz + (nupz*-1)+(nsidez*-1);
bx = fcx + (fupx*-1)+(fsidex*-1);
by = fcy + (fupy*-1)+(fsidey*-1);
bz = fcz + (fupz*-1)+(fsidez*-1);
//graphics.drawCircle(bx,by,2);
t = (az / -(bz - az));
kx = ax + (bx-ax)*t;
ky = ay + (by-ay)*t;
//graphics.drawCircle(kx,ky,4);
minx = minx < kx ? minx : kx;
miny = miny < ky ? miny : ky;
maxx = maxx > kx ? maxx : kx;
maxy = maxy > ky ? maxy : ky;
ax = ncx + (nupx*1)+(nsidex*-1);
ay = ncy + (nupy*1)+(nsidey*-1);
az = ncz + (nupz*1)+(nsidez*-1);
bx = fcx + (fupx*1)+(fsidex*-1);
by = fcy + (fupy*1)+(fsidey*-1);
bz = fcz + (fupz*1)+(fsidez*-1);
// graphics.drawCircle(bx,by,2);
t = (az / -(bz - az));
kx = ax + (bx-ax)*t;
ky = ay + (by-ay)*t;
//graphics.drawCircle(kx,ky,4);
minx = minx < kx ? minx : kx;
miny = miny < ky ? miny : ky;
maxx = maxx > kx ? maxx : kx;
maxy = maxy > ky ? maxy : ky;
//graphics.drawCircle(minx,miny, 16);
//graphics.drawCircle(maxx, maxy, 16);
// graphics.drawRect(minx,miny, maxx-minx, maxy-miny);
}//calcmouse
}//classend
}
import flash.events.ErrorEvent;
import flash.geom.Matrix;
import flash.display.BitmapData;
import flash.display3D.textures.Texture;
import flash.display3D.*;
internal class wTex
{
public var tex:Texture = null;
public function wTex() {}
public function getXor(w:int, h:int):BitmapData
{
var bm:BitmapData;
var k:int;
var i:int;
bm = new BitmapData(w,h,false,0);
for (i = 0; i < h; i++)
{
for (k = 0; k < w; k++)
{
bm.setPixel(k,i, (i^k)<<16 | (i ^ k) << 8 | (i^k));
}//nextk
}//nexti
return bm;
}//getxor
public function genTex(bm:BitmapData, c:Context3D):void
{
var s:int; //scale
var m:int; //miplevel
if (bm.width % 2 != 0 || bm.height %2 != 0 || bm.width != bm.height)
{
bm = getResized(bm, 64, 64);
}//endif
tex = c.createTexture(bm.width, bm.height, Context3DTextureFormat.BGRA, false);
tex.uploadFromBitmapData( bm , 0);
m = 1;
s = bm.width*0.5;
while (s > 0)
{
tex.uploadFromBitmapData(getResized(bm, s, s), m);
m += 1;
s *= 0.5;
}//wend
}//gentex
private var tempMat:Matrix = new Matrix();
private function getResized(bm:BitmapData, w:int, h:int):BitmapData
{
var ret:BitmapData;
var mat:Matrix;
mat = tempMat;
//mat.identity();
mat.a = w / bm.width;
mat.d = h / bm.height;
ret = new BitmapData(w, h, bm.transparent, 0);
ret.draw(bm, mat, null, null, null, true);
return ret;
}//getresized
};//classend
internal class wTileMap
{
public var vecVert:Vector.<Number> ;
public var vecUv:Vector.<Number> ;
public var vecFace:Vector.<uint> ;
public var bufVert:VertexBuffer3D;
public var bufUv:VertexBuffer3D;
public var bufFace:IndexBuffer3D;
public var mwidth:int = 0;
public var mheight:int = 0;
public var vecMap:Vector.<int> = null;
public var maxTile:int = 1024; //max tiles to display
public var numTile:int = 0; //number of tiles displayed
public function wTileMap()
{
/*
mwidth = 2;
mheight = 2;
vecMap = Vector.<int>([0,0,0,0]);
*/
mwidth = 7;
mheight = 6;
vecMap =
Vector.<int>([
1,1,1,1,1,0,1,
1,0,0,0,0,0,1,
1,0,1,1,1,1,1,
1,0,1,0,0,1,1,
1,0,1,1,0,1,0,
1,0,0,0,0,0,0 ]);
//randmap
mwidth = 64;
mheight = 64;
var num:int;
var i:int;
num = mwidth * mheight;
vecMap = new Vector.<int>(num, 0);
for (i = 0; i < num; i++)
{
vecMap[i] = Math.random() * 2;
}//nexti
}//ctor
//create default buffers
public function makeBuf(c:Context3D):void
{
vecVert = new Vector.<Number>(maxTile*3*4,false);
vecUv = new Vector.<Number>(maxTile*2*4, false);
vecFace = new Vector.<uint>(maxTile*3*2, false) ;
var nf:int;
var i:int;
var k:int;
nf = maxTile*3*2;
k = 0;
for (i = 0; i < nf; i+=6)
{
vecFace[i] = 0+k;
vecFace[i+1] = 1+k;
vecFace[i+2] = 2+k;
vecFace[i+3] = 1+k;
vecFace[i+4] = 3+k;
vecFace[i+5] = 2+k;
k += 4;
}//nexti
bufVert = c.createVertexBuffer(maxTile*4, 3);
bufUv = c.createVertexBuffer(maxTile*4, 2);
bufFace = c.createIndexBuffer(maxTile*3);
bufVert.uploadFromVector(vecVert, 0, maxTile*4);
bufFace.uploadFromVector(vecFace, 0, maxTile * 3);
bufUv.uploadFromVector(vecUv, 0, maxTile*4);
}//makebuf
//update vertex buffer
public function update():void
{
bufVert.uploadFromVector(vecVert, 0, numTile*4);
bufUv.uploadFromVector(vecUv, 0, numTile*4);
}//update
public function setMap(sx:int, sy:int, ex:int, ey:int):void
{
var k:int;
var i:int;
var yt:int;
var curc:int; //current texcoord
var curv:int; //current vertex
var curt:int; //current tile
var t:int;
if (sx >= mwidth) { return; }
if (sy >= mheight) { return; }
if (ex < 0) { return; }
if (ey < 0) { return; }
if (sx < 0) { sx = 0; }
if (sy < 0) { sy = 0; }
if (ex > mwidth) { ex = mwidth; }
if (ey > mheight) { ey = mheight; }
curc = 0;
curt = 0;
curv = 0;
for (i = sy; i < ey; i++)
{
yt = i * mwidth;
for (k = sx; k < ex; k++)
{
t = vecMap[yt+k];
if (t <= 0) { continue; }
vecVert[curv] = k;
vecVert[curv+1] = -i;
//vecVert[curv+2] = 0;
vecUv[curc] = 0;
vecUv[curc+1] = 0;
vecVert[curv+3] = k;
vecVert[curv+4] = -i - 1;
//vecVert[curv+5] = 0;
vecUv[curc+2] = 1;
vecUv[curc+3] = 0;
vecVert[curv+6] = k+1;
vecVert[curv+7] = -i;
//vecVert[curv+8] = 0;
vecUv[curc+4] = 0;
vecUv[curc+5] = 1;
vecVert[curv+9] = k+1;
vecVert[curv+10] = -i - 1;
//vecVert[curv+11] = 0;
vecUv[curc+6] = 1;
vecUv[curc+7] = 1;
/*
addQuad(
[k,-i,0, 0,0],
[k,-i-1,0, 1,0],
[1+k,-i,0, 0,1],
[1+k,-i-1,0, 1,1]);
*/
curc += 8; //2+2+2+2
curv += 12; //3+3+3+3
curt += 1;
if (curt >= maxTile) { numTile = curt; return; }
}//nexti
}//nexti
numTile = curt;
}//setmap
public function isWall(wx:Number, wy:Number):Boolean
{
var tx:int;
var ty:int;
tx = Math.floor(wx);
ty = Math.floor(-wy);
if (tx < 0) { return false; }
if (ty < 0) { return false; }
if (tx >= mwidth) { return false; }
if (ty >=mheight) { return false; }
return (vecMap[ty*mwidth +tx] > 0 );
}//iswall
}//classendtmap
internal class wGeo
{
public var vecVert:Vector.<Number> ;
public var vecUv:Vector.<Number> ;
public var vecFace:Vector.<uint> ;
public var bufVert:VertexBuffer3D;
public var bufUv:VertexBuffer3D;
public var bufFace:IndexBuffer3D;
public var numFace:int = 0;
public var mwidth:int = 7;
public var mheight:int = 6;
//using a picture of an F
//so i can easily tell the orientation of this thing
public var vecMap:Vector.<int> =
Vector.<int>([
1,1,1,1,1,1,1,
1,0,0,0,0,0,1,
1,0,0,1,1,1,1,
1,0,0,0,0,1,1,
1,0,0,1,1,1,0,
1,0,0,1,1,0,0 ]);
public function wGeo()
{}//ctor
public function upload(c:Context3D):void
{
if (bufVert != null) { bufVert.dispose(); }
if (bufUv != null) { bufUv.dispose(); }
if (bufFace != null) { bufFace.dispose(); }
var numVert:int;
// var numFace:int;
numVert = Math.floor( vecVert.length / 3);
numFace = Math.floor( vecFace.length / 3);
bufVert = c.createVertexBuffer(numVert, 3);
bufUv = c.createVertexBuffer(numVert, 2);
bufFace = c.createIndexBuffer(numFace*3);
bufVert.uploadFromVector(vecVert, 0, numVert);
bufFace.uploadFromVector(vecFace, 0, numFace * 3);
bufUv.uploadFromVector(vecUv, 0, numVert);
}//upload
public function isWall(wx:Number, wy:Number):Boolean
{
var tx:int;
var ty:int;
tx = Math.floor(wx);
ty = Math.floor(-wy);
if (tx < 0) { return false; }
if (ty < 0) { return false; }
if (tx >= mwidth) { return false; }
if (ty >=mheight) { return false; }
return (vecMap[ty*mwidth +tx] > 0 );
}//iswall
//make tilemap based on the vecmap vector
public function makeTmap():void
{
var i:int;
var k:int;
var yt:int;
var t:int;
vecFace = new Vector.<uint>;
vecVert = new Vector.<Number>;
vecUv = new Vector.<Number>;
// addQuad([0,,p, 0,0], [0,p,p, 1,0], [p,0,p, 0,1], [p,p,p, 1,1]);
/*
addQuad([0, 1, 0, 0, 0 ],
[1, 0, 0, 1, 0 ],
[0, 1, 0, 0, 1 ],
[1, 1, 0, 1, 1 ] );
*/
var n:Number;
var p:Number;
n = -0.5;
p = 0.5;
//just some indicator on where 0,0 is
addQuad([n,n,0, 0,0],[n,p,0, 1,0],[p,n,0, 0,1],[p,p,0, 1,1]);
// return;
n = 0;
p = 1;
for (i = 0; i < mheight; i++)
{
yt = i * mwidth;
for (k = 0; k < mwidth; k++)
{
t = yt + k;
if (vecMap[t] <= 0) { continue; }
addQuad(
[k,-i,0, 0,0],
[k,-i-1,0, 1,0],
[1+k,-i,0, 0,1],
[1+k,-i-1,0, 1,1]);
}//nextk
}//nexti
}//maketmap
//make quad (2 tris)
public function makeSprite():void
{
var p:Number;
var n:Number;
var scale:Number;
scale = 1.0;
p = 0.5 * scale;
n = -0.5 * scale;
vecFace = Vector.<uint>([1, 0, 2, 1, 2, 3]);
vecVert = Vector.<Number>([
n, n, 0.0,
p, n, 0.0,
n, p, 0.0,
p, p, 0.0 ]);
vecUv = Vector.<Number>([
0.0, 0.0,
1.0, 0.0,
0.0, 1.0,
1.0, 1.0 ]);
}//makesprite
public function makeCube():void
{
vecFace = new Vector.<uint>;
vecVert = new Vector.<Number>;
vecUv = new Vector.<Number>;
var n:Number;
var p:Number;
n = -0.5;
p = 0.5;
addQuad([n,n,n, 0,0],[p,n,n, 1,0], [n,p,n, 0,1], [p,p,n, 1,1]);
addQuad( [n,n,p, 0,0], [n,p,p, 1,0], [p,n,p, 0,1], [p,p,p, 1,1]);
addQuad( [n,n,n, 0,0], [n,n,p, 1,0], [p,n,n, 0,1], [p,n,p, 1,1]);
addQuad( [n,p,n, 0,0], [p,p,n, 1,0], [n,p,p, 0,1], [p,p,p, 1,1]);
addQuad( [n,n,n, 0,0], [n,p,n, 1,0], [n,n,p, 0,1], [n,p,p, 1,1]);
addQuad( [p,n,n, 0,0], [p,n,p, 1,0], [p,p,n, 0,1], [p,p,p, 1,1]);
}//makecube
public function addTri(v1:Array, v2:Array, v3:Array):void
{
if (v1.length < 5) { return; }
if (v2.length < 5) { return; }
if (v3.length < 5) { return; }
// var numFace:int;
// numFace = vecFace.length;
var numVert:int;
numVert = vecVert.length / 3;
vecVert.push(v1[0]); vecVert.push(v1[1]); vecVert.push(v1[2]);
vecUv.push(v1[3]); vecUv.push(v1[4]);
vecVert.push(v2[0]); vecVert.push(v2[1]); vecVert.push(v2[2]);
vecUv.push(v2[3]); vecUv.push(v2[4]);
vecVert.push(v3[0]); vecVert.push(v3[1]); vecVert.push(v3[2]);
vecUv.push(v3[3]); vecUv.push(v3[4]);
vecFace.push(numVert+0); vecFace.push(numVert+1); vecFace.push(numVert+2);
}//addface
public function addQuad(v1:Array, v2:Array, v3:Array, v4:Array):void
{
if (v1.length < 5) { return; }
if (v2.length < 5) { return; }
if (v3.length < 5) { return; }
if (v4.length < 5) { return; }
//var numFace:int;
//numFace = vecFace.length;
var numVert:int;
numVert = vecVert.length / 3;
vecVert.push(v1[0]); vecVert.push(v1[1]); vecVert.push(v1[2]);
vecUv.push(v1[3]); vecUv.push(v1[4]);
vecVert.push(v2[0]); vecVert.push(v2[1]); vecVert.push(v2[2]);
vecUv.push(v2[3]); vecUv.push(v2[4]);
vecVert.push(v3[0]); vecVert.push(v3[1]); vecVert.push(v3[2]);
vecUv.push(v3[3]); vecUv.push(v3[4]);
vecVert.push(v4[0]); vecVert.push(v4[1]); vecVert.push(v4[2]);
vecUv.push(v4[3]); vecUv.push(v4[4]);
vecFace.push(numVert+0); vecFace.push(numVert+1); vecFace.push(numVert+2);
vecFace.push(numVert+1); vecFace.push(numVert+3); vecFace.push(numVert+2);
}//addquad
};//classend
