Ejemplo: Proscenium – crear terreno Año: 2011 V.: AS3
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Proscenium – Flash – AS3 – Modify vertex of triangle (vertex elevation – part 2 – creating a terrain with elevations)
The next example (Part 3) will create a dynamic map loading textures go and boost level as it progresses
El próximo ejemplo (Parte 3) será crear un mapa dinámico que vaya cargando las texturas y el nivel de elevación a medida que se avanza
Example:
If you set the width and height of the tiles between 1×1 or 5×5 and you get closer to the ground you will appreciate the speed increased, the smaller the tile faster, bigger slower the camera will move.
Try this setting one that will really slow Although only one box is displayed
Cols = 1
Rows = 1
Width = 200px
Height = 200px
RandomY = 1
Try these settings and see that going very fast although rectangles display 100×100 = 10,000 10,000 * 2 = 20,000 Triangles (With this configuration the map is very small and you must stick to the floor with Downy button)
Cols = 100
Rows = 100
Width = 1px
Height = 1px
RandomY = 1
Note:If the map is not drawn correctly the first time, then you press the button again drawn
This movie requires Flash Player 9
The Code:
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/* * blog.xavirobot.com (2012) Javier Vicente Medina */ package{ /* * FLASH LIBRARI IMPORTS */ import flash.display.Sprite; import flash.display.BitmapData; import flash.display.Bitmap; import flash.geom.Vector3D; import flash.display3D.Context3D; import flash.display3D.Context3DVertexBufferFormat; import flash.events.Event; import flash.events.KeyboardEvent; import flash.events.MouseEvent; /* * PROSCENIUM LIBRARI IMPORTS */ import com.adobe.scenegraph.Instance3D; import com.adobe.scenegraph.SceneCamera; import com.adobe.scenegraph.SceneMesh; import com.adobe.scenegraph.SceneLight; import com.adobe.scenegraph.MaterialStandard; import com.adobe.scenegraph.MeshElement; import com.adobe.scenegraph.VertexFormat; import com.adobe.scenegraph.VertexFormatElement; import com.adobe.scenegraph.TextureMap; //import com.adobe.scenegraph.MeshUtils; /* * PROSCENIUM LIBRARI IMPORTS */ import com.xavirobot.media.LoadMedia; //Conf UI [ SWF( width="600", height="400", backgroundColor="0x000000", frameRate="125" ) ] public class mainVertexTransformPart2 extends Sprite{ private var loaderR:LoadMedia = new LoadMedia(); private var getContext:LoadContext; private var instance:Instance3D; private var context3D:Context3D; //OBJECTS private var CAMARA:SceneCamera; private var GLOBCAM:SceneMesh; private var LUZ:SceneLight; private var MAP:SceneMesh; //CONTROL CAMERA private var sR:Number = 2;//speedRotationKeyBoard private var xyVel:Number = 1.5; private var consPi:Number = Math.PI / 180; private var rad:Number =-90*consPi; private var cos:Number = xyVel * Math.cos(rad); private var sen:Number = xyVel * Math.sin(rad); private var ka:Array = new Array(); private var ko:Array = new Array(0,0,0,0,0,0,0,0,0); private var key:int; private var pres:int = 3; private var WORLDRotation:Number = 0; //TRIANGLE VARS private var vertices:Vector.<Number > = new Vector.<Number>; private var indices:Vector.<uint > = new Vector.<uint >; private var vertiFmt:VertexFormat; //FLAG private var startedMesh:Boolean = false; // started? //CONTRUCTOR public function mainVertexTransformPart2(){ getContext = new LoadContext(onContext3DInit); addChild(getContext); //Especificamos el formato en el que se divide el vector de los vertices vertiFmt = new VertexFormat(new <VertexFormatElement> [new VertexFormatElement("POSITION", 0, "float3", 0, "position") ,new VertexFormatElement("NORMAL" , 3, "float3", 0, "normal" ) ,new VertexFormatElement("TEXCOORD", 6, "float2", 0, "texcoord")]); } //INITIALIZE protected function onContext3DInit(_instance:Instance3D):void{ //CONTEXT3D instance = _instance; instance.scene.ambientColor.setFromUInt(0xFFFFFF); Resize(); //INIT CAMERA //Insertamos la camara dentro de otro contenedor //Esta tecnica permite modificar la rotacion X,Y,Z de la camara //Sin afectar los ejes de movimiento del contenedor GLOBCAM = new SceneMesh();//CONTAINER CAMERA FOR MOVE IN Z,X,Y instance.scene.addChild(GLOBCAM); CAMARA = instance.scene.activeCamera; //The camera can rotate in x, y, z without affecting the translation axes of the container CAMARA.identity(); GLOBCAM.addChild(CAMARA);//ADD CAMERA TO CONTAINER GLOBCAM.position = new Vector3D(55,25,100); CAMARA.prependRotation(-20,Vector3D.X_AXIS); //LIGHT LUZ = new SceneLight(); LUZ.color.set( .5, .5, .5 ); LUZ.kind = "distant"; LUZ.shadowMapEnabled = true; LUZ.setShadowMapSize( 256, 256 ); instance.scene.addChild( LUZ ); //MAP MAP = new SceneMesh(); instance.scene.addChild( MAP ); //LISTENERS stage.addEventListener(MouseEvent.MOUSE_WHEEL, onMouseWheel); stage.addEventListener(KeyboardEvent.KEY_DOWN,onKey); stage.addEventListener(KeyboardEvent.KEY_UP,onKey); stage.addEventListener( Event.ENTER_FRAME, RENDER_FRAME); stage.addEventListener( Event.RESIZE, Resize); redrawMesh_btn.addEventListener(MouseEvent.CLICK, onCreateElement); //LOAD TEXTURE loaderR.Load("source/stone1.png",onLoadTexture); } /* * ON TEXTURE LOADED */ private function onLoadTexture():void{ onCreateElement(); } /* * CREATE ELEMENT */ private function onCreateElement(e:Event = null):void { //Creamos el material var mat:MaterialStandard = new MaterialStandard("material1"); //Recuperamos el bitamp de la textura cargada y la clonamos var bitData:BitmapData = Bitmap(loaderR._Mvc.content).bitmapData.clone(); //Añadimos la textura al material mat.diffuseMap = new TextureMap(bitData,false,ch_mp.selected,ch_lf.selected,0,"Texture1Name",false,false,1); drawMalla(int(txt_cols.text),int(txt_rows.text),int(txt_width.text),int(txt_height.text)); //Añadimos los vertices a otro vector var vertiSets:Vector.<Vector.<Number>> = new Vector.<Vector.<Number>>; vertiSets.push(vertices); //Añadimos los indices a otro vector var indiSets:Vector.<Vector.<uint>> = new Vector.<Vector.<uint>>; indiSets.push(indices); //Si la malla ya fue creada entonces la eliminamos para poder crear otra if(startedMesh){ onDeleteElement(); instance.configureBackBuffer( stage.stageWidth, stage.stageHeight, int(txt_aa.text), true ); } //Creamos el elemento var meshE:MeshElement = new MeshElement("MeshElementName","MaterialName",mat); //Inicializamos el elemento indicando los vertices los indices y el formato meshE.initialize(vertiSets,indiSets,vertiFmt); //Añadimos el elemento al Mapa MAP.addElement( meshE ); startedMesh = true; } /* * DELETE ELEMENT */ private function onDeleteElement(e:Event=null):void{ //Recuperamos el elemento por su nombre var meshElement:MeshElement = MAP.getElementByName("MeshElementName"); //Recuperamos el material del elemento var mat:MaterialStandard = meshElement.material as MaterialStandard; //Recuperamos la textura del material var dif:TextureMap = mat.diffuseMap as TextureMap; //Borramos el bitmap clonado de la textura dif.data.dispose(); //Finalmente eliminamos el elemento MAP.deleteElement(meshElement); //Y reiniciamos los array vectores vertices = new Vector.<Number>; indices = new Vector.<uint>; } /* * RESIZE */ public function Resize(e:Event=null):void{ if ( !instance.scene )return; instance.configureBackBuffer( stage.stageWidth, stage.stageHeight, int(txt_aa.text), true ); instance.scene.activeCamera.aspect = stage.stageWidth / stage.stageHeight; instance.render( 0, false ); instance.present(); } /* * RENDER */ protected function RENDER_FRAME( event:Event ):void { if (int(ka[0])) { rad =((WORLDRotation +=sR)-90)*consPi; GLOBCAM.prependRotation(-sR,Vector3D.Y_AXIS);//Rotate Left; cos = xyVel * Math.cos(rad); sen = xyVel * Math.sin(rad); } else if (int(ka[1])) { rad =((WORLDRotation -=sR)-90)*consPi; GLOBCAM.prependRotation(sR,Vector3D.Y_AXIS);//Rotate Right; cos = xyVel * Math.cos(rad); sen = xyVel * Math.sin(rad); } if (int(ka[2])) {//move Left GLOBCAM.move(+sen,0,-cos); } else if (int(ka[3])) {//move Right GLOBCAM.move(-sen,0,+cos); } if (int(ka[4])) {//move Up GLOBCAM.move(+cos,0,+sen); } else if (int(ka[5])) {//move Down GLOBCAM.move(-cos,0,-sen); } if (int(ka[7])) {//Key UP Rotate Cam X CAMARA.prependRotation(sR,Vector3D.X_AXIS); } else if (int(ka[8])) {//Key DOWN Rotate Cam X CAMARA.prependRotation(-sR,Vector3D.X_AXIS); } //PRESENT instance.render( 0, false ); instance.present(); } /* * KEYS PRESSED */ protected function onKey( event:KeyboardEvent ):void{ var k:int = event.keyCode; event.type == "keyUp" ? [pres = 0,key == k ? key = 0:[]]:[key != k ? [pres = 1,key = k]:[]]; if (pres == 0 || pres == 1) { if (k == 32 || k == 65 || k == 68 || k == 37 || k == 39 || k == 87 || k == 40 || k == 38 || k == 83) { if (k == 39) { ko[0] = pres;//rotate } if (k == 37) { ko[1] = pres;//rotate } if (k == 65) {//move Left; ko[2] = pres; } if (k == 68) {//move Right; ko[3] = pres; } if (k == 87 ) {//move Up ko[4] = pres; } if (k == 83) {//Key[S] move Down ko[5] = pres; } if (k == 32) {//ESPACIO ko[6] = pres; } if (k == 38) {//Key UP Rotate Cam X ko[7] = pres; } if (k == 40) {//Key DOWN Rotate Cam X ko[8] = pres; } sendKeys(ko.join()); }//End if check number Keys if (k == 32 || k == 65 || k == 68 etc.. pres = 3; }//End if (pres == 0 || pres == 1) { }//End onKey /* * KEYS PRESSED SENDER */ public function sendKeys(keystrokes:String):void { ka = new Array(); ka = keystrokes.split(","); } /* * CAMERA ELEVATION Y */ private function onMouseWheel(event:MouseEvent) : void{ GLOBCAM.move(0,event.delta*2,0); } //Author: Javier Vicente Medina private function drawMalla(cols:int,rows:int,rectH:int,rectW):void { if(cols <=0){cols = 1;} if(rows <=0){rows = 1;} /* Creamos los vertices */ var uvCount:int = 0; var ux:int = 0; var vy:int = 0; var parinpar:Boolean = true; for (var r:int=0; r<=rows; r++) { parinpar = !parinpar; uvCount = 0; trace(parinpar); for (var n:int=0; n<=cols; n++) { vertices.push(rectW*n); //X Pos vertices.push(Math.random()*int(txt_vyRandom.text)); //Y Elevation Random vertices.push(rectH*r); //Z Pos vertices.push(0); //nx vertices.push(0); //ny vertices.push(0); //nz if(!parinpar){ if(uvCount == 0){ ux = vy = 0; }else if(uvCount == 1){ ux = 1; vy = 0; uvCount = -1; } }else{ if(uvCount == 0){ ux = 0;vy = 1; }else if(uvCount == 1){ ux = 1; vy = 1; uvCount = -1; } } vertices.push(ux); //u data Random vertices.push(vy); //v data Random uvCount++; trace(uvCount); } } /* Conectamos los índices con los vértices */ var p:int = 0; for (var s:int=0; s<rows*cols; s++) { if (s % cols == 0 && s != 0) { p++; } indices.push(p); indices.push(p+1); indices.push((p+1)+cols); indices.push(p+1); indices.push(((p+1)+cols)+1); indices.push((p+1)+cols); p++; } }//End DrawMalla }//End Class }//End package |
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