git.r.bdr.sh - rbdr/super-polarity/blob - Super Polarity/Actors/StandardShip.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 using Microsoft.Xna.Framework.Content;
   8 using System.Security.Cryptography;
   9
  10 namespace SuperPolarity
  11 {
  12     class StandardShip : Ship
  13     {
  14
  15         protected int ChangeRate;
  16         protected int CurrentTime;
  17         protected int AngleChangeProbability;
  18         protected int BouncePadding;
  19         protected float RotationFactor;
  20         protected Random Random;
  21         protected bool AddingAngle;
  22
  23         public StandardShip(SuperPolarity newGame) : base(newGame) {}
  24
  25         public override void  Initialize(Texture2D texture, Vector2 position)
  26         {
  27             base.Initialize(texture, position);
  28
  29             var cryptoResult = new byte[4];
  30             new RNGCryptoServiceProvider().GetBytes(cryptoResult);
  31
  32             ChangeRate = 50;
  33             AngleChangeProbability = 50;
  34             BouncePadding = 0;
  35             MaxVelocity = 1;
  36             CurrentTime = 0;
  37             RotationFactor = (float) (3 * Math.PI / 180);
  38             Random = new Random(BitConverter.ToInt32(cryptoResult, 0));
  39             AddingAngle = true;
  40
  41             HP = 5;
  42         }
  43
  44         public override void Magnetize(Ship ship, float distance, float angle)
  45         {
  46             if (ship.GetType() == typeof(MainShip)) {
  47                 base.Magnetize(ship, distance, angle);
  48             }
  49         }
  50
  51         public override void Update(GameTime gameTime)
  52         {
  53             CurrentTime += gameTime.ElapsedGameTime.Milliseconds;
  54             if (!Magnetizing)
  55             {
  56                 AutoMove();
  57                 BounceBack();
  58             }
  59             ChangeAngle();
  60             Position += Velocity;
  61             UpdateBox();
  62             Magnetizing = false;
  63         }
  64
  65         protected void AutoMove()
  66         {
  67             float newAngle = Angle;
  68
  69             if (CurrentTime < ChangeRate)
  70             {
  71                 return;
  72             }
  73
  74             if (Random.Next(AngleChangeProbability) == 2)
  75             {
  76                 AddingAngle = !AddingAngle;
  77             }
  78
  79             CurrentTime = 0;
  80
  81             if (AddingAngle)
  82             {
  83                 newAngle += (float) ( Random.NextDouble() * RotationFactor);
  84             }
  85             else
  86             {
  87                 newAngle -= (float) (Random.NextDouble() * RotationFactor);
  88             }
  89
  90             Velocity.X = (float) (MaxVelocity * Math.Cos(newAngle));
  91             Velocity.Y = (float) (MaxVelocity * Math.Sin(newAngle));
  92         }
  93
  94         protected void BounceBack()
  95         {
  96             if (Position.X + Width < -BouncePadding && Velocity.X < 0)
  97             {
  98                 Velocity.X = -Velocity.X;
  99             }
 100
 101             if (Position.Y + Height < -BouncePadding && Velocity.Y < 0)
 102             {
 103                 Velocity.Y = -Velocity.Y;
 104             }
 105
 106             if (Position.X > game.GraphicsDevice.Viewport.Width +  BouncePadding && Velocity.X > 0)
 107             {
 108                 Velocity.X = -Velocity.X;
 109             }
 110
 111             if (Position.Y > game.GraphicsDevice.Viewport.Height + BouncePadding && Velocity.Y > 0)
 112             {
 113                 Velocity.Y = -Velocity.Y;
 114             }
 115         }
 116
 117         public override void Collide(Actor other, Rectangle collision)
 118         {
 119             if (Dying)
 120             {
 121                 return;
 122             }
 123
 124             if (other.GetType() == typeof(MainShip))
 125             {
 126                 Die();
 127                 return;
 128             }
 129
 130             if (other.GetType() == typeof(Bullet))
 131             {
 132                 var theBullet = (Bullet)other;
 133                 TakeDamage(theBullet.Power);
 134             }
 135         }
 136
 137         protected override void Die()
 138         {
 139             ActorManager.CheckOut(this);
 140             Renderer.CheckOut(this);
 141             game.Player.AddScore(Value);
 142             game.Player.AddMultiplier(1);
 143         }
 144     }
 145 }