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/***************************************************************************
credit.c - description
-------------------
begin : Thu Sep 13 2001
copyright : (C) 2001 by Michael Speck
email : kulkanie@gmx.net
***************************************************************************/
/***************************************************************************
* *
* 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. *
* *
***************************************************************************/
#include "lbreakout.h"
#include "credit.h"
extern SDL_Surface *stk_display;
extern StkFont *font;
extern SDL_Surface *offscreen;
SDL_Surface *credit_bkgnd = 0;
float credit_alpha;
float credit_pms = 0.5;
int credit_cur;
int credit_time = 2000;
int credit_x, credit_y, credit_w, credit_h;
char credit_str[64];
int credit_status;
/*
====================================================================
Initiate credit.
====================================================================
*/
void credit_init( char *name, char *author, int level, int level_count )
{
credit_cur = 0; credit_alpha = 0; credit_status = 0;
/* string */
if ( level_count > 0 )
sprintf( credit_str, "%s (%i/%i) - %s", name,
level + 1, level_count, author );
else
sprintf( credit_str, "%s (%i) - %s", name, level + 1, author );
/* position */
credit_w = stk_font_string_width( font, credit_str ) + 4;
credit_h = font->height + 4;
credit_x = (stk_display->w - credit_w) / 2;
credit_y = (stk_display->h - credit_h) / 2;
/* background */
if ( credit_bkgnd ) SDL_FreeSurface( credit_bkgnd );
credit_bkgnd = stk_surface_create( SDL_SWSURFACE, credit_w, credit_h );
SDL_SetColorKey( credit_bkgnd, 0, 0 );
stk_surface_fill( credit_bkgnd, 0,0,-1,-1, 0x0 );
}
void credit_clear()
{
stk_surface_free( &credit_bkgnd );
}
/*
====================================================================
Show/Hide credits
====================================================================
*/
void credit_hide()
{
if (credit_status == 3) return;
stk_surface_blit( offscreen,
credit_x, credit_y, credit_w, credit_h,
stk_display, credit_x, credit_y );
stk_display_store_drect();
}
void credit_show( )
{
if (credit_status == 3) return;
if ( credit_bkgnd )
stk_surface_alpha_blit( credit_bkgnd, 0, 0,
credit_w, credit_h, stk_display,
credit_x, credit_y, credit_alpha / 2 );
font->align = STK_FONT_ALIGN_LEFT | STK_FONT_ALIGN_TOP;
stk_font_write(font, stk_display, credit_x + 2, credit_y + 2,
(int)credit_alpha, credit_str );
font->align = STK_FONT_ALIGN_CENTER_X | STK_FONT_ALIGN_CENTER_Y;
}
void credit_alphashow( int alpha )
{
if (credit_status == 3) return;
font->align = STK_FONT_ALIGN_LEFT | STK_FONT_ALIGN_TOP;
stk_font_write(font, stk_display, credit_x + 2, credit_y + 2,
(int)alpha, credit_str );
font->align = STK_FONT_ALIGN_CENTER_X | STK_FONT_ALIGN_CENTER_Y;
}
void credit_update( int ms )
{
/* appearing */
if (credit_status == 0) {
credit_alpha += credit_pms * ms;
if (credit_alpha >= 255 ) {
credit_status = 1;
credit_alpha = 255;
}
}
else
/* visible */
if (credit_status == 1) {
credit_cur += ms;
if (credit_cur > credit_time)
credit_status = 2;
}
else
/* disappearing */
if (credit_status == 2) {
credit_alpha -= credit_pms * ms;
if (credit_alpha <= 0)
credit_status = 3;
}
/* credit_status == 3 means credit disappeared */
}
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