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         static List<Actor> Actors;
  13
  14         static ActorManager()
  15         {
  16             Actors = new List<Actor>();
  17         }
  18
  19         static public void CheckIn(Actor actor)
  20         {
  21             Actors.Add(actor);
  22         }
  23
  24         static public void CheckOut(Actor actor)
  25         {
  26             Actors.Remove(actor);
  27         }
  28
  29         static public void Update(GameTime gameTime)
  30         {
  31             CheckActors();
  32             foreach (Actor actor in Actors)
  33             {
  34                 actor.Update(gameTime);
  35             }
  36         }
  37
  38         static public void Draw(SpriteBatch spriteBatch)
  39         {
  40             foreach (Actor actor in Actors)
  41             {
  42                 actor.Draw(spriteBatch);
  43             }
  44         }
  45
  46         static void CheckActors()
  47         {
  48             var i = 0;
  49             foreach (Actor actor in Actors)
  50             {
  51                 i++;
  52                 foreach (Actor other in Actors.Skip(i))
  53                 {
  54                     CheckCollision(actor, other);
  55
  56                     if (actor.GetType().IsSubclassOf(typeof(Ship)) && other.GetType().IsSubclassOf(typeof(Ship)))
  57                     {
  58                         CheckMagnetism((Ship)actor, (Ship)other);
  59                     }
  60                 }
  61             }
  62         }
  63
  64         static void CheckCollision(Actor actor, Actor other)
  65         {
  66
  67         }
  68
  69         static void CheckMagnetism(Ship actor, Ship other)
  70         {
  71             if (actor.CurrentPolarity != Ship.Polarity.Neutral && other.CurrentPolarity != Ship.Polarity.Neutral)
  72             {
  73                 var dy = other.Position.Y - actor.Position.Y;
  74                 var dx = other.Position.X - actor.Position.X;
  75                 var linearDistance = Math.Sqrt(Math.Pow(dx, 2) + Math.Pow(dy, 2));
  76                 var angle = (float) Math.Atan2(dy, dx);
  77
  78                 if (linearDistance < actor.MagneticRadius || linearDistance < other.MagneticRadius)
  79                 {
  80                     actor.Magnetize(other, (float)linearDistance, angle);
  81                     other.Magnetize(actor, (float)linearDistance, 90 - angle);
  82                 }
  83             }
  84         }
  85     }
  86 }