/// <summary>
/// LocationDisambiguator implementation.
/// Use the base of the slope to disambiguate.
/// </summary>
/// <param name="loc"></param>
/// <returns></returns>
public bool isSelectable(Location loc)
{
if (!isPlacing)
{
SlopeRailRoad rr = SlopeRailRoad.get(loc);
if (rr != null && rr.level < 2)
{
return(true);
}
loc.z++;
rr = SlopeRailRoad.get(loc);
if (rr != null && rr.level >= 2)
{
return(true);
}
return(false);
}
else
{
// it is always allowed to place it on or under ground
if (World.world.getGroundLevel(loc) >= loc.z)
{
return(true);
}
// if the new rail road is at the edge of existing rail,
// allow.
RailRoad rr = RailRoad.get(loc + direction.opposite);
if (rr != null && rr.hasRail(direction))
{
return(true);
}
for (int i = 0; i < 4; i++)
{
loc += direction;
}
loc.z++;
// run the same test to the other end
rr = RailRoad.get(loc);
if (rr != null && rr.hasRail(direction.opposite))
{
return(true);
}
return(false);
}
}
public override void onClick(MapViewWindow source, Location loc, Point ab)
{
if (isPlacing)
{
// placing
if (SlopeRailRoad.canCreateSlope(loc, direction))
{
SlopeRailRoad.createSlope(loc, direction);
}
else
{
MainWindow.showError("Can not build");
}
//! MainWindow.showError("設置できません");
}
else
{
SlopeRailRoad srr = SlopeRailRoad.get(loc);
if (srr == null)
{
loc.z++;
srr = SlopeRailRoad.get(loc);
}
if (srr != null)
{
if (srr.level >= 2)
{
loc.z--;
}
for (int i = 0; i < srr.level; i++)
{
loc -= direction;
}
// removing
if (SlopeRailRoad.canRemoveSlope(loc, direction))
{
SlopeRailRoad.removeSlope(loc, direction);
return;
}
}
MainWindow.showError("Can not remove");
//! MainWindow.showError("撤去できません");
}
}
public override void onMouseMove(MapViewWindow source, Location loc, Point ab)
{
if (lastMouse != loc)
{
// update the image
invalidateScreen();
lastMouse = loc;
invalidateScreen();
if (isPlacing)
{
costBox.cost = SlopeRailRoad.calcCostOfNewSlope(loc, direction);
}
else
{
costBox.cost = SlopeRailRoad.calcCostOfTearDownSlope(loc, direction);
}
}
}
public void drawAfter(QuarterViewDrawer view, DrawContextEx dc)
{
if (!isPlacing)
{
return;
}
Location loc = lastMouse;
if (loc == world.Location.UNPLACED)
{
return;
}
if (!SlopeRailRoad.canCreateSlope(loc, direction))
{
return;
}
Surface canvas = dc.surface;
int Z = loc.z;
for (int i = 0; i < 4; i++)
{
if (i == 2)
{
loc.z++;
}
for (int j = World.world.getGroundLevel(loc); j < Z; j++)
{
// TODO: ground level handling
BridgePierVoxel.defaultSprite.drawAlpha(
canvas, view.fromXYZToClient(loc.x, loc.y, j));
}
RailPattern.getSlope(direction, i).drawAlpha(
canvas, view.fromXYZToClient(loc));
loc += direction;
}
}
