git.r.bdr.sh - rbdr/super-polarity/blob - Super Polarity/Actors/Ship.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     class Ship : Actor
  11     {
  12         public enum Polarity : byte { Negative, Positive, Neutral };
  13
  14         protected uint HP;
  15         public Polarity CurrentPolarity;
  16         public uint MagneticRadius;
  17
  18         protected float FleeVelocity;
  19         protected float ActVelocity;
  20         protected float ChargeVelocity;
  21         protected int RepelRadius;
  22
  23         protected bool Magnetizing;
  24
  25         public Ship(Game newGame) : base(newGame) {
  26             MagneticRadius = 250;
  27             RepelRadius = 100;
  28
  29             FleeVelocity = 5;
  30             ActVelocity = 3;
  31             ChargeVelocity = 1.5f;
  32             CurrentPolarity = Polarity.Neutral;
  33             Magnetizing = false;
  34         }
  35
  36         public virtual void SwitchPolarity()
  37         {
  38             if (CurrentPolarity == Polarity.Positive)
  39             {
  40                 CurrentPolarity = Polarity.Negative;
  41             }
  42             else
  43             {
  44                 CurrentPolarity = Polarity.Positive;
  45             }
  46         }
  47
  48         public virtual void SetPolarity(Polarity newPolarity)
  49         {
  50             CurrentPolarity = newPolarity;
  51         }
  52
  53         public virtual void Shoot()
  54         {
  55         }
  56
  57         public override void Update(GameTime gameTime)
  58         {
  59             base.Update(gameTime);
  60             Magnetizing = false;
  61         }
  62
  63         public virtual void Magnetize(Ship ship, float distance, float angle)
  64         {
  65             Magnetizing = true;
  66             Polarity polarity = ship.CurrentPolarity;
  67
  68             if (polarity != CurrentPolarity)
  69             {
  70                 Attract(angle);
  71             }
  72             else
  73             {
  74                 Repel(distance, angle);
  75             }
  76         }
  77
  78         protected void Attract(float angle)
  79         {
  80             Velocity.X = (float) (ChargeVelocity * Math.Cos(angle));
  81             Velocity.Y = (float) (ChargeVelocity * Math.Sin(angle));
  82         }
  83
  84         protected void Repel(float distance, float angle)
  85         {
  86             if (distance > RepelRadius) { Magnetizing = false; return; }
  87             Velocity.X = -(float)(FleeVelocity * Math.Cos(angle));
  88             Velocity.Y = -(float)(FleeVelocity * Math.Sin(angle));
  89         }
  90     }
  91 }