Dogcows Code - chaz/carfire/blob - CarFire/CarFire/CarFire/AnimatedTexture.cs

   1 using System;
   2 using System.Collections.Generic;
   3 using Microsoft.Xna.Framework;
   4 using Microsoft.Xna.Framework.Content;
   5 using Microsoft.Xna.Framework.Graphics;
   6 using Microsoft.Xna.Framework.Input;
   7
   8 namespace CarFire
   9 {
  10     public class AnimatedTexture
  11     {
  12         private int framecount;
  13         private Texture2D myTexture;
  14         private float TimePerFrame;
  15         private int Frame, Row;
  16         private float TotalElapsed;
  17         private bool Paused, loop;
  18
  19         public float Rotation, Scale, Depth;
  20         public Vector2 Origin;
  21
  22         //rotation is pretty much always zero, scale determines size, depth is 0.5f
  23         public AnimatedTexture(Vector2 Origin, float Rotation, float Scale, float Depth)
  24         {
  25             this.Origin = Origin;
  26             this.Rotation = Rotation;
  27             this.Scale = Scale;
  28             this.Depth = Depth;
  29         }
  30         //asset is the file name w/o the extension, framecount is the # of frames per row, framespersec determines speed of the animation
  31         //loop will determine if the animation repeats, row chooses which row of the animation to play starting with 0
  32         public void Load(GraphicsDevice device, ContentManager content, string asset, int FrameCount, int FramesPerSec, bool Loop, int row)
  33         {
  34             framecount = FrameCount;
  35             myTexture = content.Load<Texture2D>(asset);
  36             TimePerFrame = (float)1 / FramesPerSec;
  37             Frame = 0;
  38             TotalElapsed = 0;
  39             Paused = false;
  40             loop = Loop;
  41             Row = row;
  42         }
  43
  44         // class AnimatedTexture
  45         public void UpdateFrame(float elapsed)
  46         {
  47             if (Paused)
  48                 return;
  49             TotalElapsed += elapsed;
  50             if (TotalElapsed > TimePerFrame)
  51             {
  52                 Frame++;
  53                 // Keep the Frame between 0 and the total frames, minus one.
  54                 Frame = Frame % framecount;
  55                 TotalElapsed -= TimePerFrame;
  56             }
  57             //If loop is false and the current Frame is the last frame
  58             //then stop playing the animation
  59             if ((Frame == framecount - 1) && loop == false)
  60                 Pause();
  61
  62         }
  63
  64         // class AnimatedTexture
  65         public void DrawFrame(SpriteBatch Batch, Vector2 screenpos)
  66         {
  67             DrawFrame(Batch, Frame, screenpos);
  68         }
  69         public void DrawFrame(SpriteBatch Batch, int frame, Vector2 screenpos)
  70         {
  71
  72             int FrameWidth = myTexture.Width / framecount;
  73             Rectangle sourcerect = new Rectangle(FrameWidth * Frame, Row * 64,
  74                 FrameWidth, 64);
  75             Batch.Draw(myTexture, screenpos, sourcerect, Color.White,
  76                 Rotation, Origin, Scale, SpriteEffects.None, Depth);
  77         }
  78
  79         public bool IsPaused
  80         {
  81             get { return Paused; }
  82         }
  83         public void Reset()
  84         {
  85             Frame = 0;
  86             TotalElapsed = 0f;
  87         }
  88         public void Stop()
  89         {
  90             Pause();
  91             Reset();
  92         }
  93         public void Play()
  94         {
  95             Paused = false;
  96         }
  97         public void Pause()
  98         {
  99             Paused = true;
 100
 101         }
 102
 103     }
 104 }