/**
** The transporter unloads a unit.
**
** @param unit Pointer to unit.
*/
void HandleActionUnload(CUnit *unit)
{
int i;
int x;
int y;
if (!CanMove(unit)) {
unit->SubAction = 2;
}
switch (unit->SubAction) {
//
// Move the transporter
//
case 0:
if (!unit->Orders[0]->Goal) {
if (!ClosestFreeDropZone(unit, unit->Orders[0]->X, unit->Orders[0]->Y,
&x, &y)) {
// Sorry... I give up.
unit->ClearAction();
return;
}
unit->Orders[0]->X = x;
unit->Orders[0]->Y = y;
}
NewResetPath(unit);
unit->SubAction = 1;
case 1:
// The Goal is the unit that we have to unload.
if (!unit->Orders[0]->Goal) {
// We have to unload everything
if ((i = MoveToDropZone(unit))) {
if (i == PF_REACHED) {
if (++unit->SubAction == 1) {
unit->ClearAction();
}
} else {
unit->SubAction = 2;
}
}
break;
}
//
// Leave the transporter
//
case 2:
// FIXME: show still animations ?
LeaveTransporter(unit);
if (CanMove(unit) && unit->Orders[0]->Action != UnitActionStill) {
HandleActionUnload(unit);
}
break;
}
}
/* virtual */ void COrder_Unload::Execute(CUnit &unit)
{
const int maxSearchRange = 20;
if (!unit.CanMove()) {
this->State = 2;
}
if (unit.Wait) {
if (!unit.Waiting) {
unit.Waiting = 1;
unit.WaitBackup = unit.Anim;
}
UnitShowAnimation(unit, unit.Type->Animations->Still);
unit.Wait--;
return;
}
if (unit.Waiting) {
unit.Anim = unit.WaitBackup;
unit.Waiting = 0;
}
if (this->State == 1 && this->Range >= 5) {
// failed to reach the goal
this->State = 2;
}
switch (this->State) {
case 0: // Choose destination
if (!this->HasGoal()) {
Vec2i pos;
if (!ClosestFreeDropZone(unit, this->goalPos, maxSearchRange, &pos)) {
this->Finished = true;
return ;
}
this->goalPos = pos;
}
this->State = 1;
// follow on next case
case 1: // Move unit to destination
// The Goal is the unit that we have to unload.
if (!this->HasGoal()) {
const int moveResult = MoveToDropZone(unit);
// We have to unload everything
if (moveResult) {
if (moveResult == PF_REACHED) {
if (++this->State == 1) {
this->Finished = true;
return ;
}
} else if (moveResult == PF_UNREACHABLE) {
unit.Wait = 30;
this->Range++;
break;
} else {
this->State = 2;
}
}
return ;
}
case 2: { // Leave the transporter
// FIXME: show still animations ?
if (LeaveTransporter(unit)) {
this->Finished = true;
return ;
}
return ;
}
default:
return ;
}
}
