viseq/src/main.cpp

/*
 *
 * VISEQ - Visual Sequencer
 *
 *
*/

    /*Background: (46, 46, 46); #2e2e2e*/
    /*Comments: (121, 121, 121); #797979*/
    /*White: (214, 214, 214); #d6d6d6*/
    /*Yellow: (229, 181, 103); #e5b567*/
    /*Green: (180, 210, 115); #b4d273*/
    /*Orange: (232, 125, 62); #e87d3e*/
    /*Purple: (158, 134, 200); #9e86c8*/
    /*Pink: (176, 82, 121); #b05279*/
    /*Blue: (108, 153, 187); #6c99bb*/

#include "datatypes.h"
#include <format>
#include <iostream>
#include <raylib.h>
#include <raymath.h>

#define RAYGUI_IMPLEMENTATION
#include "raygui/raygui.h"
#include "raygui/dark/style_dark.h"

#include <cstdlib>
#include <stdio.h>
#include <cmath>

#include "midi.h"
#include "node.h"
#include "signal.h"

#include "connection-manager.h"

std::vector<Node> nodes;
std::vector<Signal> signals;
ConnectionManager cm;

Midi midi;

Vec2D<float> mouse_pos;
Vec2D<float> drag_start;

bool mouse_clicked = false;
bool mouse_touched = false;
bool mouse_dragging = false;

enum States {IDLE, CONFIG};

struct AppState{
	int width;
	int height;
	int gui_selected_midi_out;
	States state;	
} app;

int main(){

	srand(time(NULL));

	InitWindow(2560, 1440, "VISEQ");

	GuiLoadStyleDark();

	int monitor = 0; //GetCurrentMonitor();

	SetWindowMonitor(monitor);

	app.width = GetMonitorWidth(monitor);
	app.height = GetMonitorHeight(monitor);

    Camera2D camera = { {0} };
    camera.target = (Vector2){ app.width/2.0f, app.height/2.0f };
    camera.offset = (Vector2){ app.width/2.0f, app.height/2.0f };
    camera.rotation = 0.0f;
    camera.zoom = 1.0f;

	SetTargetFPS(120);

	ToggleFullscreen();


	for(int i = 0; i < 10; i++){
		nodes.emplace(nodes.end(), Node((float)(rand() % app.width*0.5 + app.width*0.25), (float)(rand() % app.height*0.5 + app.height*0.25), 15.0f));
		std::cout << nodes.back().position.x << " " << nodes.back().position.y << std::endl;
	}
	
	for(int i = 0; i < 1; i++){
		signals.emplace(signals.end(), Signal(nodes.front().position.x+1, nodes.front().position.y+1, 5.0f, 2.0f)); // position + 1 or else it does not render. why? no idea!
		signals[i].next = &nodes.front();
		signals[i].last = &nodes.front();
	}
	
	Vec2D<float> drag_offset;

	Node* connecting_from = nullptr;

	double drag_timer = GetTime();

	while(!WindowShouldClose()){

		Vector2 mp = GetScreenToWorld2D(GetMousePosition(), camera);
		Vec2D<float> mouse_pos = {(float)mp.x, (float)mp.y};
		
		bool mouse_down = IsMouseButtonDown(MOUSE_BUTTON_LEFT);
		bool mouse_clicked = IsMouseButtonPressed(MOUSE_BUTTON_LEFT);
		bool mouse_released = IsMouseButtonReleased(MOUSE_BUTTON_LEFT);

		if(mouse_clicked){
			drag_start = mouse_pos;
		}

        BeginDrawing();

            ClearBackground((Color){46,46,46});

            BeginMode2D(camera);
				bool connecting = false;
				bool dragging = false;

				for(auto& n : nodes){
					Vec2D<float> connector_position = n.position - ((n.position - mouse_pos)).norm() * (n.radius + 14.0f);
					float dist_connector = (connector_position - mouse_pos).length();
					
					float dist = (n.position - mouse_pos).length();

					// connect nodes
					if( (dist <= n.radius + 25.0f && dist > n.radius) || n.connecting){
						n.hover_connect = true;
					} else {
						n.hover_connect = false;
					}

					if(dist_connector <= 8.0f && mouse_clicked && !connecting) {
						connecting_from = &n;
						n.connecting = true;
						connecting = true;
					}

					if(n.connecting && mouse_down){
						DrawLine(connector_position.x, connector_position.y, mouse_pos.x, mouse_pos.y, (Color){229, 181, 103, 255});
					}
					
					if(mouse_released && n.connecting) {
						n.connecting = false;
						//connecting_from = nullptr;
					}
					
					if(mouse_released && (n.hover_connect || n.hover_move)) {
						if(&n != connecting_from && connecting_from != nullptr){
							cm.connections.emplace(cm.connections.end(), connecting_from, &n);
							connecting_from = nullptr;
						}
					}
					if(!connecting){
						// move node
						if((n.position - mouse_pos).length() <= n.radius || n.picked_up){
							n.hover_move = true;
						} else {
							n.hover_move = false;
						}

						if(mouse_clicked && n.hover_move && !dragging){
							n.picked_up = true;
							drag_offset = n.position - mouse_pos;
							dragging = true;
							drag_timer = GetTime();
						}
						if(mouse_down && n.picked_up){
							if(GetTime() - drag_timer > 0.1) n.position = mouse_pos + drag_offset;
						}

						if(mouse_released && n.picked_up){
							if(GetTime() - drag_timer < 0.1) n.config = true;
						}
						
						if(mouse_released) {
							n.picked_up = false;
						}

					}
					n.draw(&mouse_pos);
				}

				cm.draw();

				for(auto& s : signals){
					s.direction = (s.next->position - s.position).norm();
					if(s.position.dist(&s.next->position) < s.speed * 1.5) {
						Node* n = cm.next(s.next, s.last);
						
						if(n != s.next && n != nullptr) {
							for(auto &m : s.next->midi_outs){
								if(m.second.enabled) midi.note(m.second.i, s.next->midi_channel, s.next->midi_note, s.next->midi_velocity, s.next->midi_gate);	
							}
							s.last = s.next;
							s.next = n;
						}
					}
					s.draw(&mouse_pos);
				}
			midi.update();
			EndMode2D();
		
			// Main Config Window
			GuiWindowBox((Rectangle){0,0,280,(float)app.height}, "config");
			{	
				GuiLabel((Rectangle){20, 60, 240, 20}, "MIDI OUT");
				int i = 0;
				for(auto& mo : midi.midi_out_ports){
					GuiCheckBox((Rectangle){20, 80 + i*20.0f, 20, 20}, mo.port.port_name.c_str(), &mo.enabled);
					i++;
				}

				if(GuiButton((Rectangle){20, 60, 240, 20}, "ADD SIGNAL")){
					signals.emplace_back(Signal(nodes.front().position.x + 1, nodes.front().position.y + 1, 5.0f, 2.0f)); // position + 1 or else it does not render. why? no idea!
					signals.back().next = &nodes[0];
					signals.back().last = &nodes[0];
				}
			}

			for(auto& n : nodes){
				if(n.config){
					n.config = !GuiWindowBox((Rectangle){n.position.x + 10, n.position.y + 10,240,400}, "config");
					int option = n.mode;
		            GuiComboBox((Rectangle){ n.position.x + 20, n.position.y + 40, 220, 20 }, "Round Robin;Random", &option);
					n.mode = (Distribution)option;

					int y_midi = 60;
					GuiLabel((Rectangle){n.position.x + 20, n.position.y + y_midi, 220, 20}, "MIDI OUT");
					for(auto& mo : midi.midi_out_ports){
						if(!n.midi_outs.contains(mo.number) && mo.enabled){
							n.midi_outs[mo.number] = {mo.number, mo.port.port_name, false};	
						}
					}
					int i = 0;
					for(auto& mo : n.midi_outs){
						GuiCheckBox((Rectangle){n.position.x + 20, n.position.y + y_midi + 20 + i*20.0f, 20, 20}, mo.second.name.c_str(), &mo.second.enabled);
						i++;
					}
					
					int y_channel = y_midi + 20 + i*20;
					GuiLabel((Rectangle){n.position.x + 20, n.position.y + y_channel, 220, 20}, "CHANNEL");
					GuiToggleGroup((Rectangle){n.position.x + 20, n.position.y + y_channel + 30, 25, 20}, "1;2;3;4;5;6;7;8\n9;10;11;12;13;14;15;16", &n.midi_channel);
					
					GuiLabel((Rectangle){n.position.x + 20, n.position.y + y_channel + 90, 100, 20}, "NOTE");
					float v = n.midi_note;
					GuiLabel((Rectangle){n.position.x + 210, n.position.y + y_channel + 90, 20, 20}, midi.midiNotes[(int)round(v)].c_str());
					GuiLabel((Rectangle){n.position.x + 160, n.position.y + y_channel + 90, 40, 20}, std::format("{}",n.midi_note).c_str());
					GuiSlider((Rectangle){n.position.x + 20, n.position.y + y_channel + 120, 220, 20}, "", "", &v, 0, 127);
					n.midi_note = round(v);
					
					GuiLabel((Rectangle){n.position.x + 20, n.position.y + y_channel + 150, 100, 20}, "VELOCITY");
					v = n.midi_velocity;
					GuiLabel((Rectangle){n.position.x + 210, n.position.y + y_channel + 150, 20, 20}, std::format("{}",n.midi_velocity).c_str());
					GuiSlider((Rectangle){n.position.x + 20, n.position.y + y_channel + 180, 220, 20}, "", "", &v, 0, 127);
					n.midi_velocity = round(v);
					
					GuiLabel((Rectangle){n.position.x + 20, n.position.y + y_channel + 210, 100, 20}, "GATE");
					v = n.midi_gate;
					GuiLabel((Rectangle){n.position.x + 210, n.position.y + y_channel + 210, 20, 20}, std::format("{}",(float)n.midi_gate/1000.0f).c_str());
					GuiSlider((Rectangle){n.position.x + 20, n.position.y + y_channel + 240, 220, 20}, "", "", &v, 0, 5000);
					n.midi_gate = round(v);
					
					//if(GuiValueBox((Rectangle){n.position.x + 100, n.position.y + y_channel + 40, 140, 20}, "VELOCITY", &n.midi_velocity, 0, 127, n.gui_midi_velocity_edit)) n.gui_midi_velocity_edit = !n.gui_midi_velocity_edit;
					//if(GuiValueBox((Rectangle){n.position.x + 100, n.position.y + y_channel + 60, 140, 20}, "GATE", &n.midi_gate, 0, 5000, n.gui_midi_gate_edit)) n.gui_midi_gate_edit = !n.gui_midi_gate_edit;
				}
			}

			for(auto& c : cm.connections){
				if(c.config){
					Vec2D<float> config_handle = c.v2->position - ((c.v2->position - c.v1->position))*0.75f;
					c.config = !GuiWindowBox((Rectangle){config_handle.x + 10, config_handle.y + 10, 200, 300}, "connection");
					GuiToggle((Rectangle){config_handle.x + 10, config_handle.y + 50, 80, 20}, "v1v2", &c.v1_v2);
					GuiToggle((Rectangle){config_handle.x + 100, config_handle.y + 50, 80, 20}, "v2v1", &c.v2_v1);

				}
			}

		EndDrawing();
	}

	CloseWindow();

	return 0;
}