From dbfc1863e0dd69d76dc93c979e125c421bc1bf08 Mon Sep 17 00:00:00 2001
From: Yaski <andrei@alternativaplatform.com>
Date: Fri, 13 Jul 2012 14:31:31 +0600
Subject: [PATCH] Object3D:: added hierarchical parameter in exclude light
 system

---
 src/alternativa/engine3d/core/Camera3D.as |  6 ++--
 src/alternativa/engine3d/core/Object3D.as | 35 +++++++++++++++++------
 src/alternativa/engine3d/objects/LOD.as   |  4 +--
 3 files changed, 32 insertions(+), 13 deletions(-)

diff --git a/src/alternativa/engine3d/core/Camera3D.as b/src/alternativa/engine3d/core/Camera3D.as
index 9e299db..9b75688 100644
--- a/src/alternativa/engine3d/core/Camera3D.as
+++ b/src/alternativa/engine3d/core/Camera3D.as
@@ -343,7 +343,7 @@ public class Camera3D extends Object3D {
 						root.listening = globalMouseHandlingType > 0;
 					}
 					// Check if object needs in lightning
-					var excludedLightLength:int = root.excludedLights.length;
+					var excludedLightLength:int = root._excludedLights.length;
 					if (lightsLength > 0 && root.useLights) {
 						// Pass the lights to children and calculate appropriate transformations
 						var childLightsLength:int = 0;
@@ -352,7 +352,7 @@ public class Camera3D extends Object3D {
 								light = lights[i];
 								// Checking light source for existing in excludedLights
 								j = 0;
-								while (j<excludedLightLength && root.excludedLights[j]!=light)	j++;
+								while (j<excludedLightLength && root._excludedLights[j]!=light)	j++;
 								if (j<excludedLightLength) continue;
 
 								light.lightToObjectTransform.combine(root.cameraToLocalTransform, light.localToCameraTransform);
@@ -368,7 +368,7 @@ public class Camera3D extends Object3D {
 								light = lights[i];
 								// Checking light source for existing in excludedLights
 								j = 0;
-								while (j<excludedLightLength && root.excludedLights[j]!=light)	j++;
+								while (j<excludedLightLength && root._excludedLights[j]!=light)	j++;
 								if (j<excludedLightLength) continue;
 
 								light.lightToObjectTransform.combine(root.cameraToLocalTransform, light.localToCameraTransform);
diff --git a/src/alternativa/engine3d/core/Object3D.as b/src/alternativa/engine3d/core/Object3D.as
index 101e65b..084937e 100644
--- a/src/alternativa/engine3d/core/Object3D.as
+++ b/src/alternativa/engine3d/core/Object3D.as
@@ -202,7 +202,7 @@ package alternativa.engine3d.core {
 		/**
 		 * @private
 		 */
-		alternativa3d var excludedLights:Vector.<Light3D> = new Vector.<Light3D>();
+		alternativa3d var _excludedLights:Vector.<Light3D> = new Vector.<Light3D>();
 
 		/**
 		 * @private
@@ -1433,7 +1433,7 @@ package alternativa.engine3d.core {
 							child.listening = true;
 						}
 						// Check if object needs in lightning
-						var excludedLightLength:int = child.excludedLights.length;
+						var excludedLightLength:int = child._excludedLights.length;
 						if (lightsLength > 0 && child.useLights) {
 							// Pass the lights to children and calculate appropriate transformations
 							var childLightsLength:int = 0;
@@ -1443,7 +1443,7 @@ package alternativa.engine3d.core {
 									light = lights[i];
 									// Checking object for existing in excludedLights
 									j = 0;
-									while (j<excludedLightLength && child.excludedLights[j]!=light)	j++;
+									while (j<excludedLightLength && child._excludedLights[j]!=light)	j++;
 									if (j<excludedLightLength) continue;
 
 									light.lightToObjectTransform.combine(child.cameraToLocalTransform, light.localToCameraTransform);
@@ -1459,7 +1459,7 @@ package alternativa.engine3d.core {
 									light = lights[i];
 									// Проверка источника света на отсутствие в excludedLights
 									j = 0;
-									while (j<excludedLightLength && child.excludedLights[j]!=light)	j++;
+									while (j<excludedLightLength && child._excludedLights[j]!=light)	j++;
 									if (j<excludedLightLength) continue;
 									light.lightToObjectTransform.combine(child.cameraToLocalTransform, light.localToCameraTransform);
 									camera.childLights[childLightsLength] = light;
@@ -1523,15 +1523,34 @@ package alternativa.engine3d.core {
 		/**
 		 * Toggle off light source from litting this object
 		 */
-		public function excludeLight(light:Light3D):void{
-			excludedLights.push(light);
+		public function excludeLight(light:Light3D, updateChildren:Boolean = false):void{
+			if (_excludedLights.indexOf(light) < 0) {
+				_excludedLights.push(light);
+			}
+			if (updateChildren) {
+				for (var child:Object3D = childrenList; child != null; child = child.next) {
+					child.excludeLight(light, true);
+				}
+			}
+		}
+
+		/**
+		 * Returns excluded lights list of current object.
+		 */
+		public function get excludedLights():Vector.<Light3D> {
+			return _excludedLights.slice();
 		}
 
 		/**
 		 * Resets list of lights excluded from litting this object
 		 */
-		public function resetLights():void{
-			excludedLights.length = 0;
+		public function clearExcludedLights(updateChildren:Boolean = false):void {
+			_excludedLights.length = 0;
+			if (updateChildren) {
+				for (var child:Object3D = childrenList; child != null; child = child.next) {
+					child.clearExcludedLights(true);
+				}
+			}
 		}
 
 		/**
diff --git a/src/alternativa/engine3d/objects/LOD.as b/src/alternativa/engine3d/objects/LOD.as
index 089943e..27af29f 100644
--- a/src/alternativa/engine3d/objects/LOD.as
+++ b/src/alternativa/engine3d/objects/LOD.as
@@ -225,12 +225,12 @@ package alternativa.engine3d.objects {
 			// If object needs on light sources.
 			if (lightsLength > 0 && child.useLights) {
 				// Calculation of transfer matrices from sources to object.
-				var excludedLightLength:int = this.excludedLights.length;
+				var excludedLightLength:int = this._excludedLights.length;
 				var childLightsLength:int = 0;
 				for (var i:int = 0; i < lightsLength; i++) {
 					var light:Light3D = lights[i];
 					var j:int = 0;
-					while (j<excludedLightLength && this.excludedLights[j]!=light)	j++;
+					while (j<excludedLightLength && this._excludedLights[j]!=light)	j++;
 					if (j<excludedLightLength) continue;
 
 					light.lightToObjectTransform.combine(child.cameraToLocalTransform, light.localToCameraTransform);