/* Mudar Cor Background */
void set_fundo( char nova_cor ){
int r,g,b;
if(search_color(nova_cor, &r,&g,&b)==1){
fundo_ = nova_cor;
mudar_cor( FUNDO , r, g, b);
}
}
/* Muda a cor de blocos e linhas */
void set_cor( char nova_cor ){
int r,g,b;
if(search_color(nova_cor, &r,&g,&b)==1){
last_cor_=cor_;
cor_=nova_cor;
mudar_cor( TEXTO , r,g,b);
}
}
/**
* Initialize some predefined colors
*/
void
display_colors_init (void)
{
coulor[BLACK] = search_color (0, 0, 0);
coulor[LIGHT_GRAY] = search_color (212, 212, 212);
coulor[WHITE] = search_color (255, 255, 255);
coulor[RED] = search_color (255, 0, 0);
coulor[GREEN] = search_color (0, 255, 0);
real_black_color = coulor[BLACK];
if (bytes_per_pixel == 2)
{
real_black_color = (Sint32) pal16[real_black_color];
}
else
{
if (bytes_per_pixel > 3)
{
real_black_color = (Sint32) pal32[real_black_color];
}
}
}
/**
* Allocate buffers and precalcule the rings
* @return TRUE if it completed successfully or 0 otherwise
*/
bool
shockwave_once_init (void)
{
double a, step, pi;
Sint32 i, j, n, r;
Sint16 x, y;
/* allocate shockwaves data structure */
if (shockwave == NULL)
{
shockwave =
(shockwave_struct *) memory_allocation (MAX_NUMOF_SHOCKWAVES *
sizeof (shockwave_struct));
if (shockwave == NULL)
{
LOG_ERR ("shockwave out of memory");
return FALSE;
}
}
if (shockwave_right_buffer == NULL)
{
shockwave_right_buffer =
(Sint32 *) memory_allocation (offscreen_height * sizeof (Sint32));
if (shockwave_right_buffer == NULL)
{
LOG_ERR ("shockwave_right_buffer out of memory");
return FALSE;
}
}
if (shockwave_left_buffer == NULL)
{
shockwave_left_buffer =
(Sint32 *) memory_allocation (offscreen_height * sizeof (Sint32));
if (shockwave_left_buffer == NULL)
{
LOG_ERR ("shockwave_left_buffer out of memory");
return FALSE;
}
}
if (shockwave_ring_x == NULL)
{
shockwave_ring_x =
(Sint16 *) memory_allocation (NUMOF_RINGS_SHOCKWAVE *
NUMOF_POINTS_SHOCKWAVE * 2 *
sizeof (Sint16));
if (shockwave_ring_x == NULL)
{
LOG_ERR ("'shockwave_ring_x' out of memory");
return FALSE;
}
shockwave_ring_y =
shockwave_ring_x + NUMOF_RINGS_SHOCKWAVE * NUMOF_POINTS_SHOCKWAVE;
}
/* set colors of the shockwaves */
shockwave_colors[0] = search_color (255, 255, 0);
shockwave_colors[1] = search_color (248, 248, 0);
shockwave_colors[2] = search_color (241, 241, 0);
shockwave_colors[3] = search_color (234, 234, 0);
shockwave_colors[4] = search_color (227, 227, 0);
shockwave_colors[5] = search_color (220, 220, 0);
shockwave_colors[6] = search_color (213, 213, 0);
shockwave_colors[7] = search_color (206, 206, 0);
shockwave_colors[8] = search_color (199, 199, 0);
shockwave_colors[9] = search_color (192, 192, 0);
shockwave_colors[10] = search_color (185, 185, 0);
shockwave_colors[11] = search_color (178, 178, 0);
shockwave_colors[12] = search_color (171, 171, 0);
shockwave_colors[13] = search_color (164, 164, 0);
shockwave_colors[14] = search_color (157, 157, 0);
shockwave_colors[15] = search_color (150, 150, 0);
shockwave_colors[16] = search_color (143, 143, 0);
shockwave_colors[17] = search_color (136, 136, 0);
shockwave_colors[18] = search_color (129, 129, 0);
shockwave_colors[19] = search_color (122, 122, 0);
shockwave_colors[20] = search_color (115, 115, 0);
shockwave_colors[21] = search_color (108, 108, 0);
shockwave_colors[22] = search_color (101, 101, 0);
shockwave_colors[23] = search_color (94, 94, 0);
shockwave_colors[24] = search_color (87, 87, 0);
/*
* precalculate the 55 rings (rings are circles)
*/
n = NUMOF_POINTS_SHOCKWAVE;
pi = 4 * atan (1.0);
/* ring radius: 30 to 300 pixels */
r = 30 * pixel_size;
step = (pi * 2) / (NUMOF_POINTS_SHOCKWAVE - 1);
for (i = 0; i < NUMOF_RINGS_SHOCKWAVE; i++, r += 5)
{
/* clear angle value */
a = 0.0;
for (j = 0; j < (NUMOF_POINTS_SHOCKWAVE - 1); j++)
{
x = (Sint16) (cos (a) * r);
y = (Sint16) (sin (a) * r);
a = a + step;
shockwave_ring_x[i * n + j] = x;
shockwave_ring_y[i * n + j] = y;
}
/* the first and last point are equal to get a closer ring */
shockwave_ring_x[i * n + j] = shockwave_ring_x[i * n];
shockwave_ring_y[i * n + j] = shockwave_ring_y[i * n];
}
shockwave_init ();
return TRUE;
}
