diff --git a/Makefile b/Makefile
index 95fd776..1fdb041 100644
--- a/Makefile
+++ b/Makefile
@@ -8,18 +8,18 @@ LDLIBS := -lraylib -lasound -llibremidi -pthread
 LDFLAGS := -Llib -L/usr/lib -L/usr/local/lib
 
 SRCS := $(wildcard src/*.cpp)
-HDRS := $(wildcard src/*.h)
 OBJECTS := $(patsubst src/%.cpp,build/%.o, $(SRCS))
+DEPENDS := $(patsubst src/%.cpp,build/%.d, $(SRCS))
 
 viseq: $(OBJECTS)
 	$(CXX) $(OBJECTS) -o $@ $(LDFLAGS) $(LDLIBS)
 
-$(OBJECTS): build/%.o : src/%.cpp
-	@mkdir -p build
-	$(CXX) -c $< -o $@ $(CXXFLAGS) $(CXXINC)
+-include $(DEPENDS)
 
-src/%.cpp: $HDRS
-	touch $@
+#$(OBJECTS): build/%.o : src/%.cpp
+build/%.o: src/%.cpp Makefile
+	@mkdir -p build
+	$(CXX) -c $< -o $@ $(CXXFLAGS) $(CXXINC) -MMD -MP
 
 clean:
 	rm -f build/*
diff --git a/src/button.h b/src/button.h
index 2201441..a135e0d 100644
--- a/src/button.h
+++ b/src/button.h
@@ -14,8 +14,9 @@ inline bool ViButton(Vec2Df mp, float x, float y, float radius, Color color){
 
 inline bool ViTexButton(Vec2Df mp, Vec2Df position, float rotation, float radius, Texture2D tex, Color color){
     float scale = (radius*2.0f) / (float)tex.width;
-    Vec2Df center_pos = position - Vec2Df((tex.width*scale)/1.0f * sin(rotation), (tex.height*scale)/1.0f * cos(rotation));
+    Vec2Df center_pos = position - Vec2Df((tex.width*scale) / 2.0f, (tex.height*scale) / 2.0f).rotate(rotation);
     DrawTextureEx(tex, center_pos, rotation, scale, color);
+
 	return (Vector2Distance(mp, position) < radius && IsMouseButtonPressed(MOUSE_BUTTON_LEFT));
 }
 
diff --git a/src/vmath.h b/src/vmath.h
index bad5018..ffabb80 100644
--- a/src/vmath.h
+++ b/src/vmath.h
@@ -57,6 +57,10 @@ namespace VISEQ::VMATH{
 				return Vec2D(-y, x);
 			};
 			
+            Vec2D rotate(float deg){
+				return Vec2D(cos(deg*DEG2RAD) * x, sin(deg*DEG2RAD) * y);
+			};
+			
 			Vec2D norm() { return *this / length();};
 
 			Vec2D center(Vec2D v){