Optimizes square distance calculation

KartikChugh · Apr 16, 2020 · 58e77c1 · 58e77c1
1 parent 8afefa6
commit 58e77c1
Showing 1 changed file with 5 additions and 2 deletions.
diff --git a/src/kc/ml/seeker/entities/Entity.java b/src/kc/ml/seeker/entities/Entity.java
@@ -48,8 +48,11 @@ private double getCenterY() {
     }
 
     final double squareDistanceFrom(Entity o) {
-        // TODO optimize center calculations
-        return Math.pow(getCenterX() - o.getCenterX(), 2) + Math.pow(getCenterY() - o.getCenterY(), 2);
+
+        final double dx = getCenterX() - o.getCenterX();
+        final double dy = getCenterY() - o.getCenterY();
+
+        return dx*dx + dy*dy;
     }
 
     final boolean isTouching(Entity o) {