Circle2D moment

Semester 2/Assignments/MP2_CalebFontenot/src/main/java/com/calebfontenot/mp2_calebfontenot/Circle2D.java

@@ -109,16 +109,13 @@ public class Circle2D {
      * @param y
      * @return true if the specified point (x, y) is inside the circle, otherwise false.
      */
-    public boolean contains(double x, double y)
+    public boolean contains(Circle2D other)
     {
-        double d = distance(x, y, this.x, this.y);
-        return d <= radius;
-    }
+        double dx = this.x - other.x;
+        double dy = this.y - other.y;
+        double distance = Math.sqrt(dx * dx + dy * dy);
 
-    public boolean contains(Circle2D c)
-    {
-        double d = distance(c.x, c.y, this.x, this.y);
-        return d <= radius;
+        return distance + other.radius <= this.radius;
     }
 
     /**
@@ -127,21 +124,13 @@ public class Circle2D {
      * @param circle to compare for overlapping.
      * @return true
      */
-    public boolean overlaps(Circle2D c)
+    public boolean overlaps(Circle2D other)
     {
-        // Compare this to the paremeter
-        double overlap = Math.sqrt((Math.pow((this.x - c.x), 2) + Math.pow((this.y + c.y), 2)));
-
-        if (overlap <= (this.radius - c.radius)) {
-            return true;
-        } else if (overlap <= (c.radius - this.radius)) {
-            return true;
-        } else if (overlap < (this.radius + c.radius)) {
-            return true;
-        } else {
-            return false;
-        }
+        double dx = this.x - other.x;
+        double dy = this.y - other.y;
+        double distance = Math.sqrt(dx * dx + dy * dy);
 
+        return distance <= this.radius + other.radius;
     }
 
     /**
@@ -183,6 +172,7 @@ public class Circle2D {
     public static void main(String[] args)
     {
         Circle2D c1 = new Circle2D(2, 2, 5.5);
+        System.out.println(c1);
         System.out.println("Area is " + c1.getArea());
         System.out.println("Perimeter is " + c1.getPerimeter());
         //System.out.println(c1.contains(3, 3));
@@ -190,7 +180,18 @@ public class Circle2D {
         //System.out.println(c1.overlaps(new Circle2D(3, 5, 2.3)));
         //System.out.println(c1.overlaps(new Circle2D(-8.7, 5, 2.3)));
         //System.out.println(c1.overlaps(new Circle2D(-8.7, 5, 2.3)));
-        System.out.println(c1.contains(new Circle2D(-1.9, 1.8, 2.3)));
-        System.out.println(c1.overlaps(new Circle2D(-1.9, 1.8, 2.3)));
+        Circle2D c2 = new Circle2D(-1.9, 1.8, 1.8);
+        Circle2D c3 = new Circle2D(-1.9, 1.8, 0.8);
+        Circle2D c4 = new Circle2D(-6.2, 1.8, 1.8);
+        System.out.println(c2);
+        System.out.println("c1.contains: " + c1.contains(c2));
+        System.out.println("c1.overlaps: " + c1.overlaps(c2));
+        System.out.println(c3);
+        System.out.println("c1.contains: " + c1.contains(c3));
+        System.out.println("c1.overlaps: " + c1.overlaps(c3));
+        System.out.println(c4);
+        System.out.println("c1.contains: " + c1.contains(c4));
+        System.out.println("c1.overlaps: " + c1.overlaps(c4));
+        
     }
 }