git.r.bdr.sh - rbdr/super-polarity/blob - Super Polarity/MainShip.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.Content;
   7 using Microsoft.Xna.Framework.Graphics;
   8
   9 namespace SuperPolarity
  10 {
  11     class MainShip
  12     {
  13         public Texture2D PlayerTexture;
  14         public Vector2 Position;
  15         public Vector2 Origin;
  16         public bool Active;
  17         public int Lives;
  18         public int Multiplier;
  19         public int Score;
  20         public float Angle;
  21
  22         // Physics Properties
  23         Vector2 Velocity;
  24         Vector2 Acceleration;
  25
  26         float MaxVelocity;
  27         float AccelerationRate;
  28         ParticleEngine particleEngine;
  29
  30         public int Width
  31         {
  32             get { return PlayerTexture.Width; }
  33         }
  34
  35         public int Height
  36         {
  37             get { return PlayerTexture.Height; }
  38         }
  39
  40         public void Initialize(ContentManager Content, Texture2D texture, Vector2 position)
  41         {
  42             PlayerTexture = texture;
  43             Position = position;
  44             Active = true;
  45             Multiplier = 1;
  46             Lives = 3;
  47             Score = 0;
  48
  49             Origin = new Vector2(PlayerTexture.Width / 2, PlayerTexture.Height / 2);
  50             Velocity = new Vector2(0, 0);
  51             Acceleration = new Vector2(0, 0);
  52
  53             MaxVelocity = 5;
  54             AccelerationRate = 10;
  55
  56             List<Texture2D> texturesList = new List<Texture2D>();
  57             texturesList.Add(Content.Load<Texture2D>("Graphics\\circle"));
  58             texturesList.Add(Content.Load<Texture2D>("Graphics\\diamond"));
  59             texturesList.Add(Content.Load<Texture2D>("Graphics\\star"));
  60
  61             particleEngine = new ParticleEngine(texturesList, Position);
  62
  63             BindInput();
  64         }
  65
  66         void BindInput()
  67         {
  68             InputController.Bind("moveX", HandleHorizontalMovement);
  69             InputController.Bind("moveY", HandleVerticalMovement);
  70         }
  71
  72         public void HandleHorizontalMovement(float value)
  73         {
  74             Acceleration.X = value * AccelerationRate;
  75         }
  76
  77         public void HandleVerticalMovement(float value)
  78         {
  79             Acceleration.Y = value * AccelerationRate;
  80         }
  81
  82         public void AutoDeccelerate(GameTime gameTime)
  83         {
  84             if (Acceleration.X == 0 && Velocity.X > 0) {
  85                 if (AccelerationRate * gameTime.ElapsedGameTime.TotalSeconds > Velocity.X)
  86                 {
  87                     Velocity.X = 0;
  88                     Acceleration.X = 0;
  89                 }
  90                 else
  91                 {
  92                     Acceleration.X = -AccelerationRate;
  93                 }
  94             }
  95
  96             if (Acceleration.X == 0 && Velocity.X < 0)
  97             {
  98                 if (-AccelerationRate * gameTime.ElapsedGameTime.TotalSeconds < Velocity.X)
  99                 {
 100                     Velocity.X = 0;
 101                     Acceleration.X = 0;
 102                 }
 103                 else
 104                 {
 105                     Acceleration.X = AccelerationRate;
 106                 }
 107             }
 108
 109             if (Acceleration.Y == 0 && Velocity.Y > 0)
 110             {
 111                 if (AccelerationRate * gameTime.ElapsedGameTime.TotalSeconds > Velocity.Y)
 112                 {
 113                     Velocity.Y = 0;
 114                     Acceleration.Y = 0;
 115                 }
 116                 else
 117                 {
 118                     Acceleration.Y = -AccelerationRate;
 119                 }
 120             }
 121
 122             if (Acceleration.Y == 0 && Velocity.Y < 0)
 123             {
 124                 if (-AccelerationRate * gameTime.ElapsedGameTime.TotalSeconds < Velocity.Y)
 125                 {
 126                     Velocity.Y = 0;
 127                     Acceleration.Y = 0;
 128                 }
 129                 else
 130                 {
 131                     Acceleration.Y = AccelerationRate;
 132                 }
 133             }
 134         }
 135
 136         public void Update(GameTime gameTime)
 137         {
 138             Move(gameTime);
 139             ChangeAngle();
 140             particleEngine.EmitterLocation = Position;
 141             particleEngine.Update();
 142         }
 143
 144         public void Move(GameTime gameTime)
 145         {
 146             AutoDeccelerate(gameTime);
 147
 148             Velocity.X = Velocity.X + Acceleration.X * (float) gameTime.ElapsedGameTime.TotalSeconds;
 149             Velocity.Y = Velocity.Y + Acceleration.Y * (float) gameTime.ElapsedGameTime.TotalSeconds;
 150
 151             if (Velocity.X > MaxVelocity)
 152             {
 153                 Velocity.X = MaxVelocity;
 154             }
 155
 156             if (Velocity.X < -MaxVelocity)
 157             {
 158                 Velocity.X = -MaxVelocity;
 159             }
 160
 161             if (Velocity.Y > MaxVelocity)
 162             {
 163                 Velocity.Y = MaxVelocity;
 164             }
 165
 166             if (Velocity.Y < -MaxVelocity)
 167             {
 168                 Velocity.Y = -MaxVelocity;
 169             }
 170
 171             Position.X = Position.X + Velocity.X;
 172             Position.Y = Position.Y + Velocity.Y;
 173         }
 174
 175         public void ChangeAngle()
 176         {
 177             Angle = (float) Math.Atan2(Velocity.Y, Velocity.X);
 178         }
 179
 180         public void Draw(SpriteBatch spriteBatch)
 181         {
 182             particleEngine.Draw(spriteBatch);
 183             spriteBatch.Draw(PlayerTexture, Position, null, Color.White, Angle, Origin, 1f, SpriteEffects.None, 0f);
 184         }
 185     }
 186 }