/*
    TE4 - T-Engine 4
    Copyright (C) 2009 - 2018 Nicolas Casalini

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.

    Nicolas Casalini "DarkGod"
    darkgod@te4.org
*/
#ifndef _PARTICLES_H_
#define _PARTICLES_H_

#include "tgl.h"
#include "useshader.h"

typedef struct {
	float size, sizev, sizea;
	float ox, oy;
	float x, y, xv, yv, xa, ya;
	float dir, dirv, dira, vel, velv, vela;
	float r, g, b, a, rv, gv, bv, av, ra, ga, ba, aa;
	int life;
	int trail;
} particle_type;

struct s_plist;

struct s_particles_type {
	SDL_mutex *lock;

	// Read only by main
	GLuint texture;
	shader_type *shader;

	// W by main, R by thread
	const char *name_def;
	const char *args;
	float zoom;

	// R/W only by thread
	particle_type *particles;
	int nb;
	int density;
	bool no_stop;

	// W only by thread, R only by main
	int batch_nb;
	GLfloat *vertices;
	GLfloat *colors;
	GLshort *texcoords;
	bool alive;
	bool i_want_to_die;
	bool init;
	bool recompile;

	// R/W only by thread
	int base;

	int angle_min, anglev_min, anglea_min;
	int angle_max, anglev_max, anglea_max;

	int size_min, sizev_min, sizea_min;
	int x_min, y_min, xv_min, yv_min, xa_min, ya_min;
	int r_min, g_min, b_min, a_min, rv_min, gv_min, bv_min, av_min, ra_min, ga_min, ba_min, aa_min;

	int size_max, sizev_max, sizea_max;
	int x_max, y_max, xv_max, yv_max, xa_max, ya_max;
	int r_max, g_max, b_max, a_max, rv_max, gv_max, bv_max, av_max, ra_max, ga_max, ba_max, aa_max;

	int life_min, life_max;

	int engine, blend_mode;

	float rotate, rotate_v;

	bool fboalter;

	struct s_particles_type *sub;

	struct s_plist *l;
};
typedef struct s_particles_type particles_type;

//To draw last linked list
struct s_particle_draw_last {
	particles_type *ps;
	float x;
	float y;
	float zoom;
	struct s_particle_draw_last *next;
};
typedef struct s_particle_draw_last particle_draw_last;

// Particles thread-only structure
struct s_particle_thread;
struct s_plist {
	particles_type *ps;
	int generator_ref;
	int updator_ref;
	int emit_ref;
	struct s_particle_thread *pt;
	struct s_plist *next;
};
typedef struct s_plist plist;

struct s_particle_thread {
	int id;
	bool running;
	lua_State *L;
	SDL_Thread *thread;
	SDL_mutex *lock;
	SDL_sem *keyframes;
	plist *list;
	jmp_buf panicjump;
};
typedef struct s_particle_thread particle_thread;

#endif