runelite-api: move rotate() to Vertex

runelite-api/src/main/java/net/runelite/api/Player.java

@@ -128,24 +128,12 @@ public class Player extends Actor
 			Vertex c = triangle.getC();
 
 			Triangle rotatedTriangle = new Triangle(
-				rotate(a, orientation),
-				rotate(b, orientation),
-				rotate(c, orientation)
+				a.rotate(orientation),
+				b.rotate(orientation),
+				c.rotate(orientation)
 			);
 			rotatedTriangles.add(rotatedTriangle);
 		}
 		return rotatedTriangles;
 	}
-
-	private Vertex rotate(Vertex vertex, int orientation)
-	{
-		int sin = Perspective.SINE[orientation];
-		int cos = Perspective.COSINE[orientation];
-
-		return new Vertex(
-			vertex.getX() * cos + vertex.getZ() * sin >> 16,
-			vertex.getY(),
-			vertex.getZ() * cos - vertex.getX() * sin >> 16
-		);
-	}
 }

runelite-api/src/main/java/net/runelite/api/model/Vertex.java

@@ -24,6 +24,8 @@
  */
 package net.runelite.api.model;
 
+import net.runelite.api.Perspective;
+
 public class Vertex
 {
 	private final int x;
@@ -94,4 +96,21 @@ public class Vertex
 	{
 		return z;
 	}
+
+	/**
+	 * Rotate the vertex by the given orientation
+	 * @param orientation
+	 * @return the newly rotated vertex
+	 */
+	public Vertex rotate(int orientation)
+	{
+		int sin = Perspective.SINE[orientation];
+		int cos = Perspective.COSINE[orientation];
+
+		return new Vertex(
+			x * cos + z * sin >> 16,
+			y,
+			z * cos - x * sin >> 16
+		);
+	}
 }