Added bsg click tracking

gui/src/input_state.cpp

@@ -16,6 +16,9 @@ float InputState::mmot_x = 0.f;
 float InputState::mmot_y = 0.f;
 float InputState::mwheelmot_y = 0.f;
 bool InputState::should_quit = false;
+bool InputState::b_click = false;
+bool InputState::s_click = false;
+bool InputState::g_click = false;
 
 void InputState::update(const unsigned width, const unsigned height) {
 	//reset relative data
@@ -24,6 +27,9 @@ void InputState::update(const unsigned width, const unsigned height) {
 	mwheelmot_y = 0.f;
 	lmb_click = false;
 	esc_click = false;
+	b_click = false;
+	s_click = false;
+	g_click = false;
 
 	SDL_Event event;
 	while (SDL_PollEvent(&event)) {
@@ -129,6 +135,15 @@ void InputState::update(const unsigned width, const unsigned height) {
 			if (event.key.keysym.sym == SDLK_SPACE) {
 				space_pressed = true;
 			}
+			if (event.key.keysym.sym == SDLK_b) {
+				b_click = true;
+			}
+			if (event.key.keysym.sym == SDLK_g) {
+				g_click = true;
+			}
+			if (event.key.keysym.sym == SDLK_s) {
+				s_click = true;
+			}
 			break;
 		case SDL_KEYUP:
 			if (event.key.keysym.sym == SDLK_SPACE) {