source: ttyvaders/trunk/src/explosions.c @ 1057 Tweet

/*
 *   ttyvaders     Textmode shoot'em up
 *   Copyright (c) 2002 Sam Hocevar <sam@zoy.org>
 *                 All Rights Reserved
 *
 *   $Id: explosions.c 1057 2006-09-18 16:54:08Z sam $
 *
 *   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 2 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, write to the Free Software
 *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include "config.h"

#include <stdlib.h>

#include "common.h"

cucul_canvas_t *medium_sprite;
cucul_canvas_t *small_sprite;

void init_explosions(game *g, explosions *ex)
{
    cucul_buffer_t *b;
    int i;

    for(i = 0; i < EXPLOSIONS; i++)
    {
        ex->type[i] = EXPLOSION_NONE;
    }

    b = cucul_load_file("data/xplmed.caca");
    medium_sprite = cucul_import_canvas(b, "");
    cucul_free_buffer(b);

    b = cucul_load_file("data/xplsmall.caca");
    small_sprite = cucul_import_canvas(b, "");
    cucul_free_buffer(b);
}

void add_explosion(game *g, explosions *ex, int x, int y, int vx, int vy, int type)
{
    int i;

    for(i = 0; i < EXPLOSIONS; i++)
    {
        if(ex->type[i] == EXPLOSION_NONE)
        {
            ex->type[i] = type;
            ex->x[i] = x;
            ex->y[i] = y;
            ex->vx[i] = vx;
            ex->vy[i] = vy;
            switch(type)
            {
                case EXPLOSION_MEDIUM:
                    ex->n[i] = 11;
                    break;
                case EXPLOSION_SMALL:
                    ex->n[i] = 7;
                    break;
            }
            break;
        }
    }
}

void draw_explosions(game *g, explosions *ex)
{
    int i;

    for(i = 0; i < EXPLOSIONS; i++)
    {
#if 0
        cucul_set_fg_color(g->cv, CACA_COLOR_GREEN);
        cucul_goto(g->cv, ex->x[i] + 3, ex->y[i]);
        switch(cucul_rand(0,2))
        {
        case 0:
            cucul_putchar(g->cv, 'p');
            cucul_putchar(g->cv, 'i');
            cucul_putchar(g->cv, 'f');
            break;
        case 1:
            cucul_putchar(g->cv, 'p');
            cucul_putchar(g->cv, 'a');
            cucul_putchar(g->cv, 'f');
            break;
        case 2:
            cucul_putchar(g->cv, 'p');
            cucul_putchar(g->cv, 'o');
            cucul_putchar(g->cv, 'u');
            cucul_putchar(g->cv, 'f');
            break;
        }
        cucul_putchar(g->cv, '!');
#endif

        switch(ex->type[i])
        {
            case EXPLOSION_MEDIUM:
                cucul_set_canvas_frame(medium_sprite, 10 - ex->n[i]);
                cucul_blit(g->cv, ex->x[i], ex->y[i], medium_sprite, NULL);
                break;
            case EXPLOSION_SMALL:
                cucul_set_canvas_frame(small_sprite, 6 - ex->n[i]);
                cucul_blit(g->cv, ex->x[i], ex->y[i], small_sprite, NULL);
                break;
            case EXPLOSION_NONE:
                break;
        }
    }
}

void update_explosions(game *g, explosions *ex)
{
    int i;

    for(i = 0; i < EXPLOSIONS; i++)
    {
        switch(ex->type[i])
        {
            case EXPLOSION_MEDIUM:
            case EXPLOSION_SMALL:
                ex->x[i] += ex->vx[i];
                ex->y[i] += ex->vy[i];
                ex->n[i]--;
                if(ex->n[i] < 0)
                {
                    ex->type[i] = EXPLOSION_NONE;
                }
                break;
            case EXPLOSION_NONE:
                break;
        }
    }
}