static cell_t *get_cell(char *cell_id)
{
char row_str[3];
char col_str[3];
int row_idx = 0, col_idx = 0;
int i, len;
if (get_rowcol(cell_id, row_str, col_str, '\0') == -1)
return NULL;
len = cgc_strlen(row_str);
for (i = 0; i < len; i++)
row_idx += ((row_str[i] - 64) * pow(26, len - i - 1));
--row_idx;
col_idx = strtol(col_str, NULL, 10);
return &g_sheet[row_idx][col_idx];
}
static void fire_update()
{
int i = 0;
int rowhit, colhit;
while(i < me_firing) {
myfire[i].posy += myfire[i].dir;
/* test if hit something */
if(get_rowcol(myfire[i].posx, myfire[i].posy,
&rowhit, &colhit)) {
if(alien_status[rowhit + colhit * aliens_rows] > 0) {
/* when hit, fire out, destroy it
* (for now not animation) */
myfire_delete(i);
GrSetGCForeground(invaders_gc, GR_RGB(255,255,255));
draw_alien(colhit,rowhit,itest);
Dprintf("hit %d,%d,%d\n", colhit,rowhit,itest);
Dprintf(" %d,%d\n",alien_maxx-alien_minx,
cell_maxx - cell_minx);
GrSetGCForeground(invaders_gc, GR_RGB(0,0,0));
alien_status[rowhit + colhit * aliens_rows] = 0;
score += colhit * 2;
update_score();
aliens_left -= 1;
if(aliens_left <= 0) {
level++;
invaders_create_board(level);
draw_first();
return;
}
continue;
}
}
/* test if out board */
if(myfire[i].posy < board_top) {
myfire_delete(i);
i--;
}
i++;
}
i = 0;
while(i < alien_firing) {
alienfire[i].posy += alienfire[i].dir;
Dprintf("alienfire pos %d\n", alienfire[i].posy);
/* test if hit me */
if(alienfire[i].posy < (me_posy + ME_HEIGHT) &&
alienfire[i].posy >= me_posy &&
alienfire[i].posx >= me_posx &&
alienfire[i].posx <= me_posx + ME_WIDTH) {
/* End of game */
game_status = GAME_STATUS_END;
return;
}
/* test if out board */
if(alienfire[i].posy >= board_bottom) {
alienfire_delete(i);
i--;
}
i++;
}
}
