Android Open Source - Slime-Volleyball-for-Android Rigid Body

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License

The source code is released under:

Copyright (c) 2011 Philip Bjorge Permission is hereby granted, free of charge, to any person obtaining a copy of this hardware, software, and associated documentation files (the "Product"), to deal i...

Java Source Code

package com.philipbjorge;
/*from   w w  w . j a v  a 2s  .co  m*/
import android.graphics.Paint;
import android.graphics.Path;
import android.graphics.Path.Direction;
import android.graphics.PointF;
import android.graphics.RectF;

public class RigidBody {
  // Have movement properties (x,y,dx,dy,accel?)
  // Have a mass
  // Have a collision shape
  Path drawable;
  Paint drawablePaint;
  
  PointF dpPos;
  PointF dpVel;
  
  RectF drawRect;
  
  float radius, ox, oy;
  
  public RigidBody(float x, float y, float r, boolean isSemi, boolean isLine, Paint p) {
    ox = x;
    oy = y;
    
    radius = r;
    drawablePaint = p;
    
    dpPos = new PointF(x,y);
    dpVel = new PointF(0,0.01f);
    
    // Create the shapes to draw
    drawable = new Path();
    if(!isLine){
      if(isSemi) {
        drawable.moveTo(x, y);
        drawRect = new RectF(dpPos.x-radius, dpPos.y-radius, dpPos.x+radius, dpPos.y);
        drawable.addArc(new RectF(dpPos.x-radius, dpPos.y-radius, dpPos.x+radius, dpPos.y+radius), 180, 180);
        drawable.close();
      } else {
        drawable.moveTo(x, y);
        drawRect = new RectF(dpPos.x-r, dpPos.y-r, dpPos.x+r, dpPos.y+r);
        drawable.addCircle(dpPos.x, dpPos.y, r, Path.Direction.CW);
      }
    } else {
      // make line
      drawable.moveTo(0,0);
      drawRect = new RectF(x-2, y, x+2, y+r);
      drawable.addRect(x-2, y, x+2, y+r, Direction.CCW);
    }
  }
  
  public void resetPos() {
    dpVel.x = 0;
    dpVel.y = 0.01f;
    
    float offX = ox-dpPos.x;
    float offY = oy-dpPos.y;
    
    dpPos.x += offX;
    dpPos.y += offY;
    
    drawable.offset(offX, offY);
    
    drawRect.offset(offX, offY);
  }
  
  public RectF getSpriteRect() {
    return drawRect;
  }
  
  public void setVX(float dx) {
    dpVel.x = dx;
  }
  
  public void setVY(float dy) {
    dpVel.y = dy;
  }  
  
  public float getX() {
    return dpPos.x;
  }
  
  public float getY() {
    return dpPos.y;
  }
  
  public void offsetPosition(float x, float y) {
    drawRect.offset(x, y);
    dpPos.offset(x, y);
    drawable.offset(x, y);
  }
  
  public float getRadius() {
    return radius;
  }
  
  public PointF getVelocity() {
    return dpVel;
  }
  
  public Paint getPaint() {
    return drawablePaint;
  }
  
  public Path getDrawable() {
    return drawable;
  }
  
  public void setPaint(Paint a) {
    drawablePaint = a;
  }
}

Java Source Code List

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