Ensures minimap room indicator updates (#142)

It would only update when entering a previously unvisited room. This is
fixed now.

Author: LiquidityC

src/gui.c

@@ -540,6 +540,12 @@ gui_update_minimap(Gui *gui, Camera *cam, RoomMatrix *rm)
 		SDL_RenderFillRect(cam->renderer, &mod_box);
 	}
 
+	SDL_SetRenderTarget(cam->renderer, NULL);
+}
+
+void
+gui_update_minimap_pos(Gui *gui, Camera *cam, RoomMatrix *rm)
+{
 	SDL_SetRenderTarget(cam->renderer, gui->miniMapOverlay->textures[0]->texture);
 	SDL_SetRenderDrawColor(cam->renderer, 0, 0, 0, SDL_ALPHA_TRANSPARENT);
 	SDL_RenderClear(cam->renderer);

src/gui.h

@@ -79,6 +79,15 @@ gui_render_panel(Gui*, Camera*);
 void
 gui_update_minimap(Gui *gui, Camera *cam, RoomMatrix *rm);
 
+/**
+ * \brief Update the current room indicator on minimap
+ * \param[in]	gui	The gui
+ * \param[in]	cam	The camera
+ * \param[in]	rm	The current rooms RoomMatrix
+ */
+void
+gui_update_minimap_pos(Gui *gui, Camera *cam, RoomMatrix *rm);
+
 /**
  * \brief Reset the gui
  * \param gui The gui

src/main.c

@@ -1002,6 +1002,7 @@ run_game_update(void)
 	map_clear_expired_entities(gMap, gRoomMatrix, gPlayer);
 	repopulate_roommatrix();
 
+	gui_update_minimap_pos(gGui, gCamera, gRoomMatrix);
 	if (first_room_visit) {
 		gui_update_minimap(gGui, gCamera, gRoomMatrix);
 	}