//--------- Begin of function Sprite::process_turn --------//
void Sprite::process_turn()
{
err_when(!sprite_info->need_turning);
match_dir();
if(is_dir_correct())
cur_action = SPRITE_MOVE;
}
//------ Begin of function Sprite::set_dir -------//
void Sprite::set_dir(UCHAR newDir)
{
if(newDir != final_dir)
{
final_dir = newDir;
turn_delay = 0;
}
if(!sprite_info->need_turning)
cur_dir = final_dir;
else
match_dir();
}
//------ Begin of function Sprite::set_dir -------//
void Sprite::set_dir(int curX, int curY, int destX, int destY)
{
UCHAR newDir = get_dir(curX, curY, destX, destY);
if(newDir != final_dir)
{
final_dir = newDir;
turn_delay = 0;
}
if(!sprite_info->need_turning)
cur_dir = final_dir;
else
match_dir(); // start turning
}
void UnitMarine::process_extra_move()
{
static short vector_x_array[] = { 0, 1, 1, 1, 0, -1, -1, -1}; // default vectors, temporary only
static short vector_y_array[] = {-1, -1, 0, 1, 1, 1, 0, -1};
if(!match_dir()) // process turning
return;
if(cur_x!=go_x || cur_y!=go_y)
{
//------------------------------------------------------------------------//
// set cargo_recno, extra_move_in_beach
//------------------------------------------------------------------------//
if(cur_x==next_x && cur_y==next_y)
{
int goXLoc = go_x>>ZOOM_X_SHIFT_COUNT;
int goYLoc = go_y>>ZOOM_Y_SHIFT_COUNT;
if(!world.get_loc(goXLoc, goYLoc)->can_move(mobile_type))
{
go_x = next_x;
go_y = next_y;
return;
}
int curXLoc = next_x_loc();
int curYLoc = next_y_loc();
world.set_unit_recno(curXLoc, curYLoc, mobile_type, 0);
world.set_unit_recno(goXLoc, goYLoc, mobile_type, sprite_recno);
next_x = go_x;
next_y = go_y;
err_when( ((curXLoc%2)|(curYLoc%2)) + ((goXLoc%2)|(goYLoc%2)) != 1); // one pair location must be even, another is not even
in_beach = !(curXLoc%2 || curYLoc%2);
if(goXLoc%2 || goYLoc%2) // not even location
extra_move_in_beach = EXTRA_MOVING_IN;
else // even location
extra_move_in_beach = EXTRA_MOVING_OUT;
}
//else
// int debug = 0;
//---------- process moving -----------//
short stepX = sprite_info->speed;
short stepY = sprite_info->speed;
short vectorX = vector_x_array[final_dir] * sprite_info->speed; // cur_dir may be changed in the above set_next() call
short vectorY = vector_y_array[final_dir] * sprite_info->speed;
if(abs(cur_x-go_x) <= stepX)
cur_x = go_x;
else
cur_x += vectorX;
if(abs(cur_y-go_y) <= stepY)
cur_y = go_y;
else
cur_y += vectorY;
err_when(extra_move_in_beach!=EXTRA_MOVING_IN && extra_move_in_beach!=EXTRA_MOVING_OUT);
err_when(cur_action!=SPRITE_SHIP_EXTRA_MOVE);
}