viseq/src/draggable.h

#pragma once

#include "moveable.h"
#include "raylib.h"
#include "selectable.h"
#include "state.h"
#include "vmath.h"

namespace VISEQ::BASE {
	class Draggable : public Movable, public Selectable{
		public:
			Draggable() {}
			Draggable(float x, float y) : Movable(Vec2Df(x, y), 960.0f) {}
			Draggable(Vec2Df p) : Movable(p, 960.0f) {}
			virtual ~Draggable() {}

			std::shared_ptr<APP::State> state = APP::State::get();

			Vec2Df drag_offset;

			bool picked_up = false;

			virtual bool entered() override {
				return !is_hovering && hovering();
			}

			virtual bool exited() override {
				return is_hovering && !hovering();
			}

			virtual bool pickedUp() {
				return held() && picked_up;
			}
			
			virtual void pickUp() override {
					picked_up = true;
					drag_offset = position - SCREEN_MOUSE; 
			}

			virtual void drag() override {
				state->selection_origin = position;
				if(KEYS_PRESSED.ctrl){
					selection_offset = position - state->selection_origin;
				}
				if(KEYS_DOWN.ctrl){
					position = MOD_MOUSE + selection_offset;
				} else {
					position = MOD_MOUSE + drag_offset;
				}
			}

			virtual void putDown() override {
				picked_up = false;
			}

			virtual void select() override {
				in_selection_rect = CheckCollisionPointRec(position, state->selection);
				if(MOUSE_LEFT.released) selected = (KEYS_DOWN.shift && selected) || in_selection_rect;
			}

	};
}