[AS3] FOV daedalus test

[Flash 15+]

January 2016

There is another entity hidden in the center of the level.

Daedalus website and source

package game.screens.dev
{
import DDLS.ai.DDLSEntityAI;
import DDLS.ai.DDLSFieldOfView;
import DDLS.ai.DDLSPathFinder;
import DDLS.ai.trajectory.DDLSLinearPathSampler;
import DDLS.data.DDLSMesh;
import DDLS.data.DDLSObject;
import DDLS.data.math.DDLSRandGenerator;
import DDLS.factories.DDLSRectMeshFactory;
import DDLS.view.DDLSSimpleView;
import engine.BaseScreen;
import flash.display.MovieClip;
import flash.events.Event;
import flash.events.MouseEvent;
import game.Config;

/**
* ...
* @author YopSolo
*/
public class DaedalusFovTest extends BaseScreen
{
private var _mesh:DDLSMesh;
private var _ddlsView:DDLSSimpleView;

private var _entityAI:DDLSEntityAI;
private var _pathfinder:DDLSPathFinder;
private var _path:Vector.<number>;
private var _pathSampler:DDLSLinearPathSampler;
private var _entity2AI:DDLSEntityAI;
private var _ddlsEntities:Vector. 	<ddlsentityai>;
private var _ddlsFov:DDLSFieldOfView;</ddlsentityai></number>

public function DaedalusFovTest()
{
_nextScreen = DaedalusPath;
super(new MovieClip);
}

// =====================================================================
public function get view():MovieClip
{
return _view as MovieClip;
}

// =====================================================================
override protected function onViewReady():void
{
// build a rectangular 2 polygons mesh of 600x400
_mesh = DDLSRectMeshFactory.buildRectangle(800, 600);

// create a viewport
_ddlsView = new DDLSSimpleView();
_ddlsView.surface.x = (Config.GAME_WIDTH - 800) &gt;&gt; 1;
_ddlsView.surface.y = (Config.GAME_HEIGHT - 600) &gt;&gt; 1;
view.addChild(_ddlsView.surface);

// pseudo random generator
var randGen:DDLSRandGenerator
randGen = new DDLSRandGenerator();
randGen.seed = 1325; // put a 4 digits number here

// populate mesh with many square objects
var object:DDLSObject;
var shapeCoords:Vector.<number>;
for (var i:int = 0; i &lt; 15; i++)
			{
				object = new DDLSObject();
				shapeCoords = new Vector.<number>();
shapeCoords.push(-1, -1, 1, -1);
shapeCoords.push(1, -1, 1, 1);
shapeCoords.push(1, 1, -1, 1);
shapeCoords.push(-1, 1, -1, -1);
object.coordinates = shapeCoords;
randGen.rangeMin = 10;
randGen.rangeMax = 40;
object.scaleX = randGen.next();
object.scaleY = randGen.next();
randGen.rangeMin = 0;
randGen.rangeMax = 1000;
object.rotation = (randGen.next() / 1000) * Math.PI / 2;
randGen.rangeMin = 50;
randGen.rangeMax = 600;
object.x = randGen.next();
object.y = randGen.next();
_mesh.insertObject(object);
}</number></number>

// show result mesh on screen
_ddlsView.drawMesh(_mesh);

// we need an entity
_entityAI = new DDLSEntityAI();
_entityAI.radius = 10;
_entityAI.x = 20;
_entityAI.y = 20;
_entityAI.angleFOV = Math.PI / 3; // rad
_entityAI.radiusFOV = 200; // pixels

// we need another entity
_entity2AI = new DDLSEntityAI();
_entity2AI.radius = 10;
_entity2AI.x = 400;
_entity2AI.y = 300;
//_ddlsView.drawEntity(_entity2AI);

_ddlsEntities = new Vector. 	<ddlsentityai>;
_ddlsEntities.push(_entityAI, _entity2AI);
_ddlsView.drawEntity(_entityAI);			</ddlsentityai>

// create the field of view
_ddlsFov = new DDLSFieldOfView();
_ddlsFov.mesh = _mesh;
_ddlsFov.fromEntity = _entityAI;

// now configure the pathfinder
_pathfinder = new DDLSPathFinder();
_pathfinder.entity = _entityAI; // set the entity
_pathfinder.mesh = _mesh; // set the mesh

// we need a vector to store the path
_path = new Vector.<number>();</number>

// then configure the path sampler
_pathSampler = new DDLSLinearPathSampler();
_pathSampler.entity = _entityAI;
_pathSampler.samplingDistance = 5;
_pathSampler.path = _path;

_ddlsView.surface.addEventListener(MouseEvent.CLICK, _onClick);
}

private function _oef(event:Event):void
{
if (_pathSampler.hasNext)
{
// move entity
_pathSampler.next();

_ddlsView.drawEntity(_entityAI);
// if _entity2AI is visible show both entities
if (_ddlsFov.isInField(_entity2AI))
{
_ddlsView.drawEntities(_ddlsEntities);
}
}
else
{
// animation is over
_view.removeEventListener(Event.ENTER_FRAME, _oef);
}
}

private function _onClick(e:MouseEvent):void
{
if (e.shiftKey)
{
end();
}
else
{
// find path !
_pathfinder.findPath(_ddlsView.surface.mouseX, _ddlsView.surface.mouseY, _path);

// show path on screen
_ddlsView.drawPath(_path);

// reset the path sampler to manage new generated path
_pathSampler.reset();

// animate !
_view.addEventListener(Event.ENTER_FRAME, _oef);
}
}

// =====================================================================
override protected function end():void
{
_ddlsView.surface.removeEventListener(MouseEvent.CLICK, _onClick);
if (_view.hasEventListener(Event.ENTER_FRAME))
{
_view.removeEventListener(Event.ENTER_FRAME, _oef);
}
super.end();
}

}

}