unity3d光影插件

unity3d的2d光影插件 unity3d的2d光影插件 unity3d的2d光影插件

using UnityEngine;
using System.Collections;
using System.Collections.Generic;

namespace LOS {

	/// 

	/// LOS camera. 
	/// Needs to be placed in a camera for the system to work.
	/// 

	[RequireComponent （typeof（Camera））]
	public class LOSCamera : LOSobjectbase {

		[HideInInspector]
		public Vector2 halfViewboxSize;

		private List _viewbox;
		private Camera _camera;


		public List viewbox {
			get {
				if （_viewbox == null） {
					_viewbox = new List（）;
					for （int i=0; i<4; i++） {
						_viewbox.Add（new ViewBoxLine（））;
					}
					UpdateViewingBox（）;
				}
				return _viewbox;
			}
		}

		public List viewboxCorners {
			get {
				List result = new List（）;
				foreach （var line in viewbox） {
					result.Add（line.end）;
				}
				return result;
			}
		}

		public void UpdateViewingBox （） {
			Vector2 screenSize = SHelper.GetScreenSizeInWorld（unityCamera）;
			halfViewboxSize = screenSize / 2 * LOSManager.instance.viewboxExtension;
			
			Vector2 upperRight = new Vector2（halfViewboxSize.x halfViewboxSize.y） + SMath.Vec3ToVec2（_trans.position）;
			Vector2 upperLeft = new Vector2（-halfViewboxSize.x halfViewboxSize.y） + SMath.Vec3ToVec2（_trans.position）;
			Vector2 lowerLeft = new Vector2（-halfViewboxSize.x -halfViewboxSize.y） + SMath.Vec3ToVec2（_trans.position）;
			Vector2 lowerRight = new Vector2（halfViewboxSize.x -halfViewboxSize.y） + SMath.Vec3ToVec2（_trans.position）;
			
			viewbox[0].SetStartEnd（lowerRight upperRight）;		// right
			viewbox[1].SetStartEnd（upperRight upperLeft）;		// up
			viewbox[2].SetStartEnd（upperLeft lowerLeft）;	// left
			viewbox[3].SetStartEnd（lowerLeft lowerRight）;	// down
		}

		public Camera unityCamera {
			get {
				if （_camera == null） {
					_camera = GetComponent（）;
				}
				return _camera;
			}
		}


		public Vector3 GetCollisionPointWithViewBox （Vector3 origin Vector3 direction） {
			Vector3 point = Vector3.zero;
			foreach （var line in viewbox） {
				Vector2 q = line.start;
				Vector2 s = line.end - line.start;
				
				Vector2 p = SMath.Vec3ToVec2（origin）;
				Vector2 r = SMath.Vec3ToVec2（direction）;
				
				// The intersection is where q + u*s == p + t*r and 0 <= u <= 1 && 0 <= t
				// t = （q − p） × s / （r × s）
				// u = （q − p） × r / （r × s）
				
				float crossRS = SMath.CrossProduct2D（r s）;
				float crossQP_S = SMath.CrossProduct2D（q - p s）;
				float crossQP_R = SMath.CrossProduct2D（q - p r）;
				
				if （crossRS == 0） {
					// TODO: other situations
				}
				else {
					float t = crossQP_S / crossRS;
					float u = crossQP_R / crossRS;
					
					if （0 <= u && u <= 1 && 0 <= t） {
						point = q + u * s;
						break;
					}
				}
			}
			return point;
		}
		
		// Works in counter-clock wise pointA is the one with smaller angle against vector （1 0）
		public List GetViewboxCornersBetweenPoints （Vector3 pointA Vector3 pointB Vector3 origin bool give4CornersWhenAEqualB） {
			poin

 属性            大小     日期    时间   名称
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     目录           0  2015-06-18 12:09  2D-Light-of-Sight-Unity-master\
     文件         107  2015-06-18 12:09  2D-Light-of-Sight-Unity-master\Core.meta
     目录           0  2015-06-18 12:09  2D-Light-of-Sight-Unity-master\Core\
     文件         107  2015-06-18 12:09  2D-Light-of-Sight-Unity-master\Core\Event.meta
     目录           0  2015-06-18 12:09  2D-Light-of-Sight-Unity-master\Core\Event\
     文件        2571  2015-06-18 12:09  2D-Light-of-Sight-Unity-master\Core\Event\LOSEventManager.cs
     文件         178  2015-06-18 12:09  2D-Light-of-Sight-Unity-master\Core\Event\LOSEventManager.cs.meta
     文件        3586  2015-06-18 12:09  2D-Light-of-Sight-Unity-master\Core\Event\LOSEventSource.cs
     文件         178  2015-06-18 12:09  2D-Light-of-Sight-Unity-master\Core\Event\LOSEventSource.cs.meta
     文件        2015  2015-06-18 12:09  2D-Light-of-Sight-Unity-master\Core\Event\LOSEventTrigger.cs
     文件         178  2015-06-18 12:09  2D-Light-of-Sight-Unity-master\Core\Event\LOSEventTrigger.cs.meta
     文件        4879  2015-06-18 12:09  2D-Light-of-Sight-Unity-master\Core\LOSCamera.cs
     文件         178  2015-06-18 12:09  2D-Light-of-Sight-Unity-master\Core\LOSCamera.cs.meta
     文件       20743  2015-06-18 12:09  2D-Light-of-Sight-Unity-master\Core\LOSFullScreenLight.cs
     文件         178  2015-06-18 12:09  2D-Light-of-Sight-Unity-master\Core\LOSFullScreenLight.cs.meta
     文件       11749  2015-06-18 12:09  2D-Light-of-Sight-Unity-master\Core\LOSLightbase.cs
     文件         178  2015-06-18 12:09  2D-Light-of-Sight-Unity-master\Core\LOSLightbase.cs.meta
     文件        5532  2015-06-18 12:09  2D-Light-of-Sight-Unity-master\Core\LOSManager.cs
     文件         178  2015-06-18 12:09  2D-Light-of-Sight-Unity-master\Core\LOSManager.cs.meta
     文件         882  2015-06-18 12:09  2D-Light-of-Sight-Unity-master\Core\LOSobjectbase.cs
     文件         178  2015-06-18 12:09  2D-Light-of-Sight-Unity-master\Core\LOSobjectbase.cs.meta
     文件        1369  2015-06-18 12:09  2D-Light-of-Sight-Unity-master\Core\LOSObstacle.cs
     文件         178  2015-06-18 12:09  2D-Light-of-Sight-Unity-master\Core\LOSObstacle.cs.meta
     文件        7345  2015-06-18 12:09  2D-Light-of-Sight-Unity-master\Core\LOSRadialLight.cs
     文件         178  2015-06-18 12:09  2D-Light-of-Sight-Unity-master\Core\LOSRadialLight.cs.meta
     文件         107  2015-06-18 12:09  2D-Light-of-Sight-Unity-master\Editor.meta
     目录           0  2015-06-18 12:09  2D-Light-of-Sight-Unity-master\Editor\
     文件         942  2015-06-18 12:09  2D-Light-of-Sight-Unity-master\Editor\LOSFullScreenLightEditor.cs
     文件         178  2015-06-18 12:09  2D-Light-of-Sight-Unity-master\Editor\LOSFullScreenLightEditor.cs.meta
     文件        2011  2015-06-18 12:09  2D-Light-of-Sight-Unity-master\Editor\LOSLightbaseEditor.cs
     文件         178  2015-06-18 12:09  2D-Light-of-Sight-Unity-master\Editor\LOSLightbaseEditor.cs.meta
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