Added click detection (edge detect)

src/input_state.cpp

 #include <input_state.hpp>
 #include <iostream>
 #include <imgui_bundle.hpp>
+#include <leveler.hpp>
 
 bool InputState::mwheel_pressed = false;
 bool InputState::lmb_pressed = false;
+bool InputState::lmb_click = false;
 bool InputState::rmb_pressed = false;
 float InputState::mpos_x = 0.f;
 float InputState::mpos_y = 0.f;
@@ -19,6 +21,7 @@ void InputState::update(const unsigned width, const unsigned height) {
 	mmot_x = 0.f;
 	mmot_y = 0.f;
 	mwheelmot_y = 0.f;
+	lmb_click = false;
 
 	SDL_Event event;
 	while (SDL_PollEvent(&event)) {
@@ -52,6 +55,7 @@ void InputState::update(const unsigned width, const unsigned height) {
 					std::cout << "LMB Pressed" << std::endl << std::flush;
 #endif
 					lmb_pressed = true;
+					lmb_click = true;
 					break;
 				case SDL_BUTTON_RIGHT:
 #ifndef NDEBUG