/*
* drone.cc
* DIN Is Noise is copyright (c) 2006-2021 Jagannathan Sampath
* DIN Is Noise is released under GNU Public License 2.0
* For more information, please visit https://dinisnoise.org/
*/

#include "din.h"
#include "drone.h"
#include "console.h"
#include "audio.h"
#include "utils.h"
#include "vector2d.h"
#include <math.h>
using namespace std;

extern multi_curve drone_mod_am_crv, drone_mod_fm_crv;
extern solver warp_vol, warp_pitch;
extern const char spc;

extern void get (float& g, float& gx, float& gy, defvelaccel& dva);
extern int gethandlesize ();
extern int gettrailsize ();
extern const float TWO_PI;

void drone::setis () {
  if (IS == DRONE_OR_NOISE) is = get_rand_bit (); else is = IS;
}

drone::drone (float bottom) : mod (&drone_mod_fm_crv, &drone_mod_am_crv) {

  setis ();
  step = vol = 0;
  range = 0;
  pos = 0.0f;
  r = g = b = 0.5f;
  cx = cy = 0;
	x = y = 0;
  dy = 0;
  xv = x; yv = y;
  xa = x; ya = y;
	sx = 0;
  sel = 0;
  state = DEAD;
	frozen = 0;
	froze_at = 0;
  handle_size = gethandlesize (); 
  trail.set (gettrailsize());
	id = ++UID;
  get (V, vx, vy, v0);
	v_mult = 1.0f;
  get (A, ax, ay, a0);
  gravity = 0;
  attractor = 0;
	orbiting = 0;
  launcher = 0;
  tracking = 0;
  tracked_drone = 0;
  dpm = 60;
	++ref;
  launched_by = 0;
  reincarnate = 0;
  switch (ARE) {
    case IMMORTAL:
      birth = -1;
      break;
    case MORTAL:
      birth = ui_clk ();
      break;
    case REINCARNATE:
      birth = ui_clk ();
      reincarnate = 1;
      break;
  }
	life = LIFETIME;
	insert = INSERTTIME;
	target = 0;
	cur_target = 0;
	num_targets = 0;
  update_pv = UNSET;
	snap = 0;
	nconn = 0;
	type = CHAIN;
  gab.set (1.0f, 0.0f, 0, 1.0f);
  tovol = 0.0f;
  finl = 0;
  note_num = -1;
}

drone::~drone () {
	--ref;
}


void drone::move_center () {
	cx += (x - xi); 
	cy += (y - yi);
}

drone* drone::eval_conns () {
	if (nconn) {
		int n = 0;
		proc_conn [this] = true;
		list<double>::iterator mi = mags.begin();
		drone_iterator p = connections.begin ();
		drone* c0 = *p;
		for (drone_iterator q = connections.end (); p != q; ++p, ++mi) {
			drone* pdc = *p;
			if (proc_conn[pdc] == false) {
				proc_conn [pdc] = true;
				drone& dc = *pdc;
				double now = magnitude (cx, cy, dc.cx, dc.cy);
				double org = *mi;
        if (now > org) {
          double lead = STIFFNESS * (now - org);
          float ux, uy; unit_vector<float, int> (ux, uy, dc.cx, dc.cy, cx, cy);
          dc.set_center (dc.cx + lead * ux, dc.cy + lead * uy);
          ++n;
        }
			}
		}
		if (n) return this; else return c0;
	}
	return 0;
}

void drone::remagconns () {
  list<double>::iterator mi = mags.begin();
  drone_iterator p = connections.begin ();
  for (drone_iterator q = connections.end (); p != q; ++p, ++mi) {
    drone* pd = *p;
    *mi = magnitude<double> (cx, cy, pd->cx, pd->cy);
  }
}

void drone::set_center (float xx, float yy, int e) {
	cx = xx;
	cy = yy;
	if (frozen) set_pos (cx + mod.fm.result, cy + mod.am.result);
	if (e) eval_conns ();
}

void drone::set_pos (float xx, float yy) {

	// position
	x = xx;
	y = yy;

  // position affects velocity?
  if (posafxvel.yes && !autorot.v.yes && !gravity && !tracking && !orbiting) {
    double mag = magnitude (posafxvel.pt.x, posafxvel.pt.y, x, y);
    if (mag > posafxvelt::minmag) {
      direction (vx, vy, posafxvel.pt.x, posafxvel.pt.y, x, y);
      vx /= mag;
      vy /= mag;
      posafxvel.pt.x = x;
      posafxvel.pt.y = y;
    }
  }

  // locate range on microtonal-keyboard
  range = din0.find_range (x, range);
  ::range& dr = din0.ranges[range];

  // pitch position in range
  int delta_left = x - dr.extents.left;
  pos = delta_left * 1.0f / dr.extents.width;
  if (pos < 0 || pos > 1.0f) ; else pos = warp_pitch (pos);

  // pitch snap
  if (snap) { 
    if (pos < din0.dinfo.snap.left) 
      note_num = 0; 
    else if (pos > din0.dinfo.snap.right) 
      note_num = 1;
    else 
      goto normal;
    if (note_num) { 
      pos = 1; 
      sx = dr.extents.right; 
    } else { 
      pos = 0; 
      sx = dr.extents.left;
    }
  } else {
    normal:
    note_num = -1;
    sx = x;
  }

	calc_handle (); 

  update_pv = EMPLACE; // update pitch volume b4 rendering drones

}

void drone::calc_handle () {
  //handle (sx - handle_size, round(y) - handle_size, sx + handle_size, round(y) + handle_size);
  handle (sx - handle_size, y - handle_size, sx + handle_size, y + handle_size);
}

void drone::update_pitch_volume () {

  ::range& dr = din0.ranges[range];
  dy = y - BOTTOM;
  float iv = dy * 1.0f / dr.extents.height;
  if (dy < 0) vol = -warp_vol (-iv); else vol = warp_vol (iv);

  if (note_num == -1) {
    float n0step = dr.notes[0].step, n1step = dr.notes[1].step;
    float nstep = n0step + pos * (n1step - n0step);
    if (nstep > 0) step = nstep;
  } else {
    step = dr.notes[note_num].step;
  }

  if (is == DRONE) {
    float v = fdr.amount * mastervolume * gab.amount * vol;
    player.set_interpolated_pitch_volume (step, v);
  } else 
    setnoise ();

  --update_pv;

}


void drone::setnoise () {
  nsr.set_samples (1.0f / step);
  nsr.set_spread ( fabs(vol) );
}



void drone::change_bpm (mod_params& mp, float delta) {
	mp.bv.set_bpm (mp.bv.bpm + delta);
}

void drone::change_bpm (int i, int what, float delta) {
  if (what == modulator::FM) {
    change_bpm (mod.fm, delta);
    cons << "drone: " << i << ", FM bpm = " << mod.fm.bv.bpm << eol;
  } else {
    change_bpm (mod.am, delta);
    cons << "drone: " << i << ", AM bpm = " << mod.am.bv.bpm << eol;
  }
}

void drone::change_depth (int i, int what, float delta) {
  if (what == modulator::FM) {
    mod.fm.depth += delta;
    cons << "drone: " << i << ", FM depth = " << mod.fm.depth << eol;
  } else {
    mod.am.depth += delta;
    cons << "drone: " << i << ", AM depth = " << mod.am.depth << eol;
  }
}

void drone::clear_targets () {
	targets.clear ();
	cur_target = 0;
	num_targets = 0;
}

void drone::handle_time_pass () {
	double tp = ui_clk() - froze_at; 
  mod.t += tp;
  if (autorot.v.autoflip.yes) autorot.v.tik.startt += tp;
  if (autorot.a.autoflip.yes) autorot.a.tik.startt += tp;
  fdr.start_time += tp;
	if (birth != -1) birth += tp;
	if (launcher) launch_every.startt += tp;
}

int drone::freeze () {
	++frozen;
	froze_at = ui_clk ();
	update_pv = drone::EMPLACE;
  if (chuck.yes && chuckt::autoresettrails && chuck.sat) chuck.resettrail (chuck.sat);
	return 1;
}

int drone::thaw () {
	if (--frozen < 1) {
		frozen = 0;
		handle_time_pass ();
    if (chuck.yes && chuckt::autoresettrails && chuck.sat) chuck.resettrail (chuck.sat);
		return 1;
	}
	return 0;
}

group::group (std::vector<drone*> mem, int _n) {
	n = _n;
	if (n) {
		drones.resize (n);
		for (int i = 0; i < n; ++i) drones[i] = mem[i];
	}
}

std::ostream& operator<< (std::ostream& f, drone::arrowt& aw) {
	f << aw.u << spc << aw.v << spc << aw.t << spc << aw.cap;
	return f;
}

std::istream& operator>> (std::istream& f, drone::arrowt& aw) {
  f >> aw.u >> aw.v >> aw.t >> aw.cap;
  return f;
}

std::ostream& operator<< (std::ostream& f, drone::chuckt& ch) {
  f << ch.len << spc << ch.speed << spc << ch.dir << spc << ch.ux << spc << ch.uy << spc;
  if (ch.sun) f << ch.sun->id << spc; else f << 0 << spc;
  if (ch.sat) f << ch.sat->id; else f << 0;
  return f;
}

std::istream& operator>> (std::istream& f, drone::chuckt& ch) {
  f >> ch.len >> ch.speed >> ch.dir >> ch.ux >> ch.uy;
  uintptr_t sun; f >> sun; ch.sun = (drone*) sun;
  uintptr_t sat; f >> sat; ch.sat = (drone*) sat;
  return f;
}

void drone::chuckt::re (drone& p) {
  if (sun) p.chuck.len = unit_vector (p.chuck.ux, p.chuck.uy, sun->cx, sun->cy, p.cx, p.cy);
}

void drone::chuckt::print () {
  stringstream ss;
  ss << " || Speeds: This = " << speed;
  if (sun) {
    ss << ", Previous = " << sun->chuck.speed;
  } else ss << ", Previous = none";
  if (sat) {
    ss << ", Next = " << sat->chuck.speed;
  } else 
    ss << ", Next = none";
  cons << ss.str ();
}

void drone::chuckt::resettrail (drone* d) {
  d->trail.reset ();
  drone* sat = d->chuck.sat;
  if (sat) sat->chuck.resettrail (sat);
}


std::ostream& operator<< (std::ostream& f, anglet& a) {
  f << a.deg;
  return f;
}

std::istream& operator>> (std::istream& f, anglet& a) {
  f >> a.deg;
  a.torad ();
  return f;
}

/*connect::connect (drone* _d1, drone* _d2) {
	dirty = 1;
	d1 = _d1;
	d2 = _d2;
	mag = magnitude (d1->cx, d1->cy, d2->cx, d2->cy);
	p1.x = d1->cx; p1.y = d1->cy;
	p2.x = d2->cx; p2.y = d2->cy;
	align_vel ();
}

void connect::align_vel () {
	unit_vector<float,float>(d1->vx, d1->vy, d1->cx, d1->cy, d2->cx, d2->cy);
	//d2->vx = d1->vx;
	//d2->vy = d1->vy;
}

int connect::eval (drone** ret) {
	double magnew = magnitude (d1->cx, d1->cy, d2->cx, d2->cy);
	if (magnew > mag) {
		float ux, uy; unit_vector (ux, uy, d1->cx, d1->cy, d2->cx, d2->cy);
		double lead = magnew - mag;
		int d1mov = ((p1.x != d1->cx) || (p1.y != d1->cy));
		int d2mov = ((p2.x != d2->cx) || (p2.y != d2->cy));
		int d12mov = d1mov && d2mov;
		if (d12mov) {
			lead /= 2.0;
			d1->set_center (d1->cx + lead * ux, d1->cy + lead * uy);
			d2->set_center (d2->cx - lead * ux, d2->cy - lead * uy);
			ret[0] = d1;
			ret[1] = d2;
		} else {
			if (d1mov) {
				d2->set_center (d2->cx - lead * ux, d2->cy - lead * uy);
				ret[0] = d2;
				ret[1] = 0;
			} else if (d2mov) {
				d1->set_center (d1->cx + lead * ux, d1->cy + lead * uy);
				ret[0] = d1;
				ret[1] = 0;
			}
		}
		align_vel ();
		p1.x = d1->cx; p1.y = d1->cy;
		p2.x = d2->cx; p2.y = d2->cy;
		dirty = 0;
		return 1;
	}
	dirty = 0;
	return 0;
}

void connect::draw () {
	glBegin (GL_LINES);
		glColor3f (d1->r, d1->g, d1->b);
		glVertex2i (d1->cx, d1->cy);
		glColor3f (d2->r, d2->g, d2->b);
		glVertex2i (d2->cx, d2->cy);
	glEnd ();
}*/