bool PlaceToolInputState::OnPointerDown( const Pointer& pointer )
{
// Make sure there is a valid UnitType and Faction selected.
if( mSelectedUnitType && mSelectedFaction && pointer.IsActivePointer() )
{
EditorState* owner = GetOwnerDerived();
MapView* mapView = owner->GetMapView();
// If this is the active pointer, create a new Unit placement sprite under it.
CreateUnitPlacementSprite( mapView->ScreenToWorldCoords( pointer.position ) );
}
return false; //InputState::OnPointerDown( pointer );
}
bool PlaceToolInputState::OnPointerMotion( const Pointer& activePointer, const PointersByID& pointersByID )
{
bool wasHandled = false; //InputState::OnPointerMotion( activePointer, pointersByID );
if( !wasHandled && mUnitPlacementSprite && activePointer.isMoving )
{
EditorState* owner = GetOwnerDerived();
MapView* mapView = owner->GetMapView();
// Move the Unit placement Sprite to the position of the active pointer.
MoveUnitPlacementSprite( mapView->ScreenToWorldCoords( activePointer.position ) );
wasHandled = true;
}
return wasHandled;
}
Unit* PlaceToolInputState::CreateUnitAtScreenCoords( const Vec2f& screenCoords )
{
Unit* unit = nullptr;
if( mSelectedUnitType )
{
if( mSelectedFaction )
{
EditorState* owner = GetOwnerDerived();
MapView* mapView = owner->GetMapView();
Map* map = owner->GetMap();
// Get the Tile at the screen coords.
Vec2f worldPos = mapView->ScreenToWorldCoords( screenCoords );
Vec2s tilePos = mapView->WorldToTileCoords( worldPos );
Map::Iterator tile = map->GetTile( tilePos );
if( tile.IsValid() && tile->IsEmpty() && mSelectedUnitType->CanMoveAcrossTerrain( tile->GetTerrainType() ) )
{
// If the selected UnitType can be placed into the Tile, create a new Unit.
DebugPrintf( "Placing Unit at tile (%d,%d)!", tilePos.x, tilePos.y );
unit = map->CreateUnit( mSelectedUnitType, mSelectedFaction, tilePos );
}
else
{
WarnFail( "Cannot place Unit into tile (%d,%d)!", tilePos.x, tilePos.y );
}
}
else
{
WarnFail( "Cannot create Unit because no Faction was selected!" );
}
}
else
{
WarnFail( "Cannot create Unit because no UnitType was selected!" );
}
return unit;
}