Spatial partition pattern #562 (#828)

* Spatial partition * Update pom.xml * Update Bubble.java - pmd * Update Rect.java - pmd
2026-05-14 18:58:44 +00:00 · 2018-12-23 03:07:31 +05:30
parent 7b8c9b07ed
commit a6749cb63e
14 changed files with 914 additions and 0 deletions
@@ -0,0 +1,84 @@
+/**
+ * The MIT License
+ * Copyright (c) 2014-2016 Ilkka Sepp�l�
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+package com.iluwatar.spatialpartition;
+
+import static org.junit.jupiter.api.Assertions.*;
+import java.util.ArrayList;
+import java.util.Hashtable;
+import org.junit.jupiter.api.Test;
+
+/**
+* Testing methods in Bubble class.
+*/
+
+class BubbleTest {
+
+  @Test
+  void moveTest() {
+    Bubble b = new Bubble(10,10,1,2);
+    int initialX = b.x;
+    int initialY = b.y;
+    b.move();
+    //change in x and y < |2|
+    assertTrue((b.x - initialX < 2 && b.x - initialX > -2) && (b.y - initialY < 2 && b.y - initialY > -2));
+  }
+
+  @Test
+  void touchesTest() {
+    Bubble b1 = new Bubble(0,0,1,2);
+    Bubble b2 = new Bubble(1,1,2,1);
+    Bubble b3 = new Bubble(10,10,3,1);
+    //b1 touches b2 but not b3
+    assertTrue(b1.touches(b2) && !b1.touches(b3));
+  }
+
+  @Test
+  void popTest() {
+    Bubble b1 = new Bubble(10,10,1,2);
+    Bubble b2 = new Bubble(0,0,2,2);
+    Hashtable<Integer, Bubble> bubbles = new Hashtable<Integer, Bubble>();
+    bubbles.put(1, b1); 
+    bubbles.put(2, b2);
+    b1.pop(bubbles);
+    //after popping, bubble no longer in hashtable containing all bubbles
+    assertTrue(bubbles.get(1) == null && bubbles.get(2) != null);
+  }
+
+  @Test
+  void handleCollisionTest() {
+    Bubble b1 = new Bubble(0,0,1,2);
+    Bubble b2 = new Bubble(1,1,2,1);
+    Bubble b3 = new Bubble(10,10,3,1);
+    Hashtable<Integer, Bubble> bubbles = new Hashtable<Integer, Bubble>();
+    bubbles.put(1, b1); 
+    bubbles.put(2, b2); 
+    bubbles.put(3, b3);
+    ArrayList<Point> bubblesToCheck = new ArrayList<Point>();
+    bubblesToCheck.add(b2); 
+    bubblesToCheck.add(b3);
+    b1.handleCollision(bubblesToCheck, bubbles);
+    //b1 touches b2 and not b3, so b1, b2 will be popped
+    assertTrue(bubbles.get(1) == null && bubbles.get(2) == null && bubbles.get(3) != null);
+  }
+}