git.r.bdr.sh - rbdr/super-polarity/blob - SuperPolarity/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 : GameActor
  11     {
  12         public enum Polarity : byte { Negative, Positive, Neutral };
  13
  14         public Polarity CurrentPolarity;
  15         public uint MagneticRadius;
  16
  17         public float FleeVelocity;
  18         public float ActVelocity;
  19         public float ChargeVelocity;
  20         public int RepelRadius;
  21
  22         protected bool Magnetizing;
  23
  24         public Ship(SuperPolarity newGame) : base(newGame) {
  25             MagneticRadius = 250;
  26             RepelRadius = 100;
  27
  28             HP = 2;
  29
  30             FleeVelocity = 5;
  31             ActVelocity = 1;
  32             ChargeVelocity = 2.5f;
  33             CurrentPolarity = Polarity.Neutral;
  34             Magnetizing = false;
  35         }
  36
  37         public virtual void SwitchPolarity()
  38         {
  39             if (CurrentPolarity == Polarity.Positive)
  40             {
  41                 CurrentPolarity = Polarity.Negative;
  42             }
  43             else
  44             {
  45                 CurrentPolarity = Polarity.Positive;
  46             }
  47         }
  48
  49         public virtual void SetPolarity(Polarity newPolarity)
  50         {
  51             CurrentPolarity = newPolarity;
  52         }
  53
  54         public virtual void Shoot()
  55         {
  56         }
  57
  58         public override void Update(GameTime gameTime)
  59         {
  60             base.Update(gameTime);
  61             Magnetizing = false;
  62         }
  63
  64         public virtual void Magnetize(Ship ship, float distance, float angle)
  65         {
  66             Magnetizing = true;
  67             Polarity polarity = ship.CurrentPolarity;
  68
  69             if (polarity != CurrentPolarity)
  70             {
  71                 Attract(angle);
  72             }
  73             else
  74             {
  75                 Repel(distance, angle);
  76             }
  77         }
  78
  79         protected void Attract(float angle)
  80         {
  81             Velocity.X = (float) (ChargeVelocity * Math.Cos(angle));
  82             Velocity.Y = (float) (ChargeVelocity * Math.Sin(angle));
  83         }
  84
  85         protected void Repel(float distance, float angle)
  86         {
  87             if (distance > RepelRadius) { Magnetizing = false; return; }
  88             Velocity.X = -(float)(FleeVelocity * Math.Cos(angle));
  89             Velocity.Y = -(float)(FleeVelocity * Math.Sin(angle));
  90         }
  91     }
  92 }