Fix place bug

There are spaces (not buttons) inside the control pad area now. Ignore any tap events if they are within the control pad rectangle so that blocks are not accidentally placed

src/touchscreengui.cpp

@@ -193,6 +193,7 @@ void TouchScreenGUI::init(ISimpleTextureSource* tsrc, float density)
 	m_control_pad_rect   = rect<s32>(
 	        spacing,                    m_screensize.Y - control_pad_size - spacing,
 			spacing + control_pad_size, m_screensize.Y - spacing);
+
 	/*
 	draw control pad
 	0 3 6
@@ -482,6 +483,8 @@ void TouchScreenGUI::translateEvent(const SEvent &event)
 		else if (isHUDButton(event))
 		{
 			/* already handled in isHUDButton() */
+		} else if (m_control_pad_rect.isPointInside(v2s32(toadd.X, toadd.Y))) {
+			// ignore events inside the control pad not already handled
 		}
 		/* handle non button events */
 		else {
@@ -527,6 +530,8 @@ void TouchScreenGUI::translateEvent(const SEvent &event)
 				translated->MouseInput.Event        = EMIE_LMOUSE_LEFT_UP;
 				m_receiver->OnEvent(*translated);
 				delete translated;
+			} else if (m_control_pad_rect.isPointInside(v2s32(m_move_downlocation.X, m_move_downlocation.Y))) {
+				// ignore events inside the control pad not already handled
 			} else if (!m_move_has_really_moved) {
 				SEvent* translated = new SEvent;
 				memset(translated,0,sizeof(SEvent));

src/touchscreengui.h

@@ -94,6 +94,8 @@ private:
 	std::map<int,irr::EKEY_CODE> m_hud_ids;
 	bool                    m_visible; // is the gui visible
 
+	rect<s32>				controlpadarea;
+
 	/* value in degree */
 	double                  m_camera_yaw;
 	double                  m_camera_pitch;