// Decal object
// Copyright (C) 2002  David Rosen
// Copyright (C) 2003  Steven Fuller
// Copyright (C) 2003  Zachary Jack Slater
// Copyright (C) 2021, 2023  Nguyễn Gia Phong
//
// This file is part of Black Shades.
//
// Black Shades 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.
//
// Black Shades 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 Black Shades.  If not, see <https://www.gnu.org/licenses/>.

#ifndef BLACKSHADES_DECALS_H
#define BLACKSHADES_DECALS_H

#include "Models.h"
#include "Quaternions.h"

#define MAX_DECALS 120

enum decal { BULLET_HOLE, CRATER, BLOOD_POOL };

struct Decals {
	GLuint hole_textures[2];
	GLuint blood_textures[11];

	GLuint len;
	enum decal kind[MAX_DECALS];
	XYZ points[MAX_DECALS * 8];
	GLuint numpoints[MAX_DECALS];
	GLfloat texcoordsx[MAX_DECALS * 8];
	GLfloat texcoordsy[MAX_DECALS * 8];
	GLfloat alive[MAX_DECALS];
};

#ifdef __cplusplus
extern "C" {
#endif // __cplusplus
void addDecal(struct Decals *d, enum decal kind, XYZ location, float size,
              XYZ normal, int poly, Model *model, XYZ move, float rotation);
void updateDecals(struct Decals *d);
void drawDecals(struct Decals *d);
void destroyDecals(struct Decals *d);
#ifdef __cplusplus
} // extern "C"
#endif // __cplusplus

#endif // BLACKSHADES_DECALS_H