Android Open Source - NotATop Circle

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Back to project page NotATop.

License

The source code is released under:

GNU General Public License

Java Source Code

package com.gg.util;
/*from  www .j a va  2  s.  c  o  m*/
/*    ???????????    */
public class Circle {

  private Point center;
  private float radius;
  

  public Circle(Point center, float r){
    this.center = center;  
    radius = r;
  }
  
  public Circle(float x, float y, float r){
    //this(new Point(x, y), r);
    center = new Point(x, y, 0);
    radius = r;
  }

  public Point getCenter() {
    return center;
  }

  public void setCenter(Point center) {
    this.center = center;
  }

  public float getRadius() {
    return radius;
  }

  public void setRadius(float radius) {
    this.radius = radius;
  }
  
  

  public boolean isCollideRectangle(float x1, float y1, float x2, float y2){
    if(center.y-radius <= y1){
      return true;
    }
    if(center.y+radius >= y2){
      return true;
    }
    if(center.x-radius <= x1){
      return true;
    }
    if(center.x+radius >= x2){
      return true;
    }
    return false;
  }
  
  public boolean isCollideCircle(Circle circle){
    float x1 = center.x;
    float y1 = center.y;
    float x2 = circle.center.x;
    float y2 = circle.center.y;  
    float distance = (float) Math.sqrt((y2-y1)*(y2-y1)+(x2-x1)*(x2-x1));
    
    if(distance<=radius+circle.radius){
      return true;
    }else{
      return false;
    }
  }
  
}

Java Source Code List

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