git.r.bdr.sh - rbdr/super-polarity/blob - Super Polarity/ActorManager.cs

   1 using System;
   2 using System.Collections.Generic;
   3 using System.Linq;
   4 using System.Text;
   5 using Microsoft.Xna.Framework;
   6 using Microsoft.Xna.Framework.Graphics;
   7
   8 namespace SuperPolarity
   9 {
  10     static class ActorManager
  11     {
  12
  13         static Game Game;
  14         static int OutlierBounds;
  15         static List<Actor> Actors;
  16
  17         static ActorManager()
  18         {
  19             OutlierBounds = 100;
  20             Actors = new List<Actor>();
  21         }
  22
  23         static public void CheckIn(Actor actor)
  24         {
  25             Actors.Add(actor);
  26         }
  27
  28         static public void CheckOut(Actor actor)
  29         {
  30             Actors.Remove(actor);
  31         }
  32
  33         static public void Update(GameTime gameTime)
  34         {
  35             CheckActors();
  36             CheckOutliers();
  37             foreach (Actor actor in Actors)
  38             {
  39                 actor.Update(gameTime);
  40             }
  41         }
  42
  43         static public void Draw(SpriteBatch spriteBatch)
  44         {
  45             foreach (Actor actor in Actors)
  46             {
  47                 actor.Draw(spriteBatch);
  48             }
  49         }
  50
  51         static void CheckActors()
  52         {
  53             var i = 0;
  54             foreach (Actor actor in Actors)
  55             {
  56                 i++;
  57                 foreach (Actor other in Actors.Skip(i))
  58                 {
  59                     CheckCollision(actor, other);
  60
  61                     if (actor.GetType().IsSubclassOf(typeof(Ship)) && other.GetType().IsSubclassOf(typeof(Ship)))
  62                     {
  63                         CheckMagnetism((Ship)actor, (Ship)other);
  64                     }
  65                 }
  66             }
  67         }
  68
  69         static void CheckCollision(Actor actor, Actor other)
  70         {
  71
  72         }
  73
  74         static void CheckMagnetism(Ship actor, Ship other)
  75         {
  76             if (actor.CurrentPolarity != Ship.Polarity.Neutral && other.CurrentPolarity != Ship.Polarity.Neutral)
  77             {
  78                 var dy = other.Position.Y - actor.Position.Y;
  79                 var dx = other.Position.X - actor.Position.X;
  80                 var linearDistance = Math.Sqrt(Math.Pow(dx, 2) + Math.Pow(dy, 2));
  81                 var angle = (float) Math.Atan2(dy, dx);
  82                 var otherAngle = (float)Math.Atan2(-dy, -dx);
  83
  84                 if (linearDistance < actor.MagneticRadius || linearDistance < other.MagneticRadius)
  85                 {
  86                     actor.Magnetize(other, (float)linearDistance, angle);
  87                     other.Magnetize(actor, (float)linearDistance, otherAngle);
  88                 }
  89             }
  90         }
  91
  92         static void CheckOutliers()
  93         {
  94             for (var i = Actors.Count; i > 0; i--)
  95             {
  96                 var actor = Actors[i-1];
  97                 if (actor.Position.X < -OutlierBounds || actor.Position.Y < -OutlierBounds ||
  98                     actor.Position.X > Game.GraphicsDevice.Viewport.Width + OutlierBounds ||
  99                     actor.Position.Y > Game.GraphicsDevice.Viewport.Height + OutlierBounds)
 100                 {
 101                     CheckOut(actor);
 102                 }
 103             }
 104         }
 105
 106         internal static void SetGame(Game game)
 107         {
 108             Game = game;
 109         }
 110     }
 111 }