/**
** Find new path.
**
** The destination could be a unit or a field.
** Range gives how far we must reach the goal.
**
** @note The destination could become negative coordinates!
**
** @param unit Path for this unit.
**
** @return >0 remaining path length, 0 wait for path, -1
** reached goal, -2 can't reach the goal.
*/
static int NewPath(PathFinderInput &input, PathFinderOutput &output)
{
char *path = output.Path;
int i = AStarFindPath(input.GetUnitPos(),
input.GetGoalPos(),
input.GetGoalSize().x, input.GetGoalSize().y,
input.GetUnitSize().x, input.GetUnitSize().y,
input.GetMinRange(), input.GetMaxRange(),
path, PathFinderOutput::MAX_PATH_LENGTH,
*input.GetUnit());
input.PathRacalculated();
if (i == PF_FAILED) {
i = PF_UNREACHABLE;
}
// Update path if it was requested. Otherwise we may only want
// to know if there exists a path.
if (path != NULL) {
output.Length = std::min<int>(i, PathFinderOutput::MAX_PATH_LENGTH);
if (output.Length == 0) {
++output.Length;
}
}
return i;
}
/* virtual */ void COrder_Build::UpdatePathFinderData(PathFinderInput &input)
{
input.SetMinRange(this->Type->BoolFlag[BUILDEROUTSIDE_INDEX].value ? 1 : 0);
input.SetMaxRange(this->Range);
const Vec2i tileSize(this->Type->TileWidth, this->Type->TileHeight);
input.SetGoal(this->goalPos, tileSize);
}
/* virtual */ void COrder_Move::UpdatePathFinderData(PathFinderInput &input)
{
input.SetMinRange(0);
input.SetMaxRange(this->Range);
const Vec2i tileSize(0, 0);
input.SetGoal(this->goalPos, tileSize);
}
/* virtual */ void COrder_Build::UpdatePathFinderData(PathFinderInput &input)
{
input.SetMinRange(this->Type->BuilderOutside ? 1 : 0);
input.SetMaxRange(this->Range);
const Vec2i tileSize(this->Type->TileWidth, this->Type->TileHeight);
input.SetGoal(this->goalPos, tileSize);
}
/* virtual */ void COrder_Move::UpdatePathFinderData(PathFinderInput &input)
{
const Vec2i tileSize(0, 0);
input.SetGoal(this->goalPos, tileSize);
int distance = this->Range;
if (GameSettings.Inside) {
CheckObstaclesBetweenTiles(input.GetUnitPos(), this->HasGoal() ? this->GetGoal()->tilePos : this->goalPos, MapFieldRocks | MapFieldForest, &distance);
}
input.SetMaxRange(distance);
input.SetMinRange(0);
}
/* virtual */ void COrder_Board::UpdatePathFinderData(PathFinderInput &input)
{
input.SetMinRange(0);
input.SetMaxRange(this->Range);
Vec2i tileSize;
if (this->HasGoal()) {
CUnit *goal = this->GetGoal();
tileSize.x = goal->Type->TileWidth;
tileSize.y = goal->Type->TileHeight;
input.SetGoal(goal->tilePos, tileSize);
} else {
tileSize.x = 0;
tileSize.y = 0;
input.SetGoal(this->goalPos, tileSize);
}
}
/* virtual */ void COrder_Repair::UpdatePathFinderData(PathFinderInput &input)
{
const CUnit &unit = *input.GetUnit();
input.SetMinRange(0);
input.SetMaxRange(ReparableTarget != NULL ? unit.Type->RepairRange : 0);
Vec2i tileSize;
if (ReparableTarget != NULL) {
tileSize.x = ReparableTarget->Type->TileWidth;
tileSize.y = ReparableTarget->Type->TileHeight;
input.SetGoal(ReparableTarget->tilePos, tileSize);
} else {
tileSize.x = 0;
tileSize.y = 0;
input.SetGoal(this->goalPos, tileSize);
}
}
/* virtual */ void COrder_Follow::UpdatePathFinderData(PathFinderInput &input)
{
input.SetMinRange(0);
input.SetMaxRange(this->Range);
Vec2i tileSize;
if (this->HasGoal()) {
CUnit *goal = this->GetGoal();
tileSize.x = goal->Type->TileWidth;
tileSize.y = goal->Type->TileHeight;
//Wyrmgus start
// input.SetGoal(goal->tilePos, tileSize);
input.SetGoal(goal->tilePos, tileSize, goal->MapLayer);
//Wyrmgus end
} else {
tileSize.x = 0;
tileSize.y = 0;
//Wyrmgus start
// input.SetGoal(this->goalPos, tileSize);
input.SetGoal(this->goalPos, tileSize, this->MapLayer);
//Wyrmgus end
}
}