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/***************************************************************************
shine.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 "config.h"
extern SDL_Surface *stk_display;
extern Config config;
extern SDL_Surface *offscreen;
extern SDL_Surface *shine_pic;
extern Game *game;
float shine_change = 0.020; /* per ms */
int shine_frame = 6; /* maximum frame */
float shine_cur = 0; /* current frame */
int shine_x, shine_y; /* position where current shine is drawn */
int shine_recreate = 1;
Delay shine_delay; /* delay between shines */
/*
====================================================================
Load/delete resources
====================================================================
*/
void shine_load()
{
delay_set( &shine_delay, 200 );
}
void shine_delete()
{
}
/*
====================================================================
Recreate shine on a random but valid brick
====================================================================
*/
void shine_create()
{
int x_add, y_add, x, y;
shine_cur = 0;
shine_x = 0; shine_y = 0;
if ( !config.anim ) return;
x = (rand() % (BRICK_WIDTH - 2)) + 1;
y = (rand() % (BRICK_HEIGHT - 2)) + 1;
x_add = rand() % 2 == 0 ? 1 : -1;
y_add = rand() % 2 == 0 ? 1 : -1;
while (x > 0 && x < MAP_WIDTH - 1 && y > 0 && y < MAP_HEIGHT - 1) {
if (game->bricks[x][y].type != MAP_EMPTY && game->bricks[x][y].id != INVIS_BRICK_ID ) {
shine_x = x * BRICK_WIDTH;
shine_y = y * BRICK_HEIGHT;
break;
}
x += x_add; y += y_add;
}
/* if creation succeeded don't create any more shines */
if ( shine_x != 0 && shine_y != 0 ) shine_recreate = 0;
}
/*
====================================================================
Reset (delete( shine
====================================================================
*/
void shine_reset()
{
shine_x = shine_y = 0;
shine_recreate = 1;
delay_reset( &shine_delay );
}
/*
====================================================================
Show/hide current shine
====================================================================
*/
void shine_hide()
{
if (shine_x == 0 && shine_y == 0) return;
stk_surface_blit( offscreen, shine_x, shine_y,
BRICK_WIDTH, BRICK_HEIGHT,
stk_display, shine_x, shine_y );
stk_display_store_drect();
}
void shine_show()
{
if (shine_x == 0 && shine_y == 0) return;
stk_surface_blit( shine_pic, (int)shine_cur * BRICK_WIDTH, 0,
BRICK_WIDTH, BRICK_HEIGHT,
stk_display, shine_x, shine_y );
}
/*
====================================================================
Update shine
====================================================================
*/
void shine_update( int ms )
{
/* recreate shine? */
if ( shine_recreate ) {
shine_x = shine_y = 0; /* if recreation is demanded delete old shine */
if ( delay_timed_out( &shine_delay, ms ) ) shine_create();
}
else {
shine_cur += shine_change * ms;
if (shine_cur > shine_frame) {
shine_recreate = 1;
delay_reset( &shine_delay );
}
}
}
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