zoomedit: Implemented Rotate tool; added simple gates.

1 files changed, 21 insertions, 0 deletions

diff --git a/Room.h b/Room.h
index 8e72c61..1cac5d9 100644
--- a/Room.h
+++ b/Room.h
@@ -35,6 +35,27 @@ class Room : public Polygon, public LevelObject {
         v->setY(v->getY()+y);
       }
     }
+    
+    virtual void rotate(float a) {
+      Vertex z = getCenter();
+      float s = sinf(a);
+      float c = cosf(a);
+      
+      for(iterator v = begin(); v != end(); v++) {
+        *v -= z;
+        v->setLocation(c*v->getX() - s*v->getY(), c*v->getY() + s*v->getX());
+        *v += z;
+      }
+    }
+    
+    virtual Vertex getCenter() const {
+      Vertex ret;
+      
+      for(const_iterator v = begin(); v != end(); v++)
+        ret += *v;
+      
+      return ret / size();
+    }
 };
 
 #endif /*ROOM_H_*/