public override void updatePreview()
{
PreviewDrawer drawer;
// TODO: locations of the previews are uttely incorrect. fix them
// direction N
using (drawer = new PreviewDrawer(pictureN.ClientSize, new Size(2, 4), 0)) {
drawer.draw(RailPattern.getSlope(Direction.NORTH, 3), 1, -1);
drawer.draw(RailPattern.getSlope(Direction.NORTH, 2), 1, 0);
drawer.draw(RailPattern.getSlope(Direction.NORTH, 1), 0, 2);
drawer.draw(RailPattern.getSlope(Direction.NORTH, 0), 0, 3);
if (pictureN.Image != null)
{
pictureN.Image.Dispose();
}
pictureN.Image = drawer.createBitmap();
}
// direction S
using (drawer = new PreviewDrawer(pictureS.ClientSize, new Size(2, 4), 0)) {
drawer.draw(RailPattern.getSlope(Direction.SOUTH, 0), 0, 0);
drawer.draw(RailPattern.getSlope(Direction.SOUTH, 1), 0, 1);
drawer.draw(RailPattern.getSlope(Direction.SOUTH, 2), 1, 1);
drawer.draw(RailPattern.getSlope(Direction.SOUTH, 3), 1, 2);
if (pictureS.Image != null)
{
pictureS.Image.Dispose();
}
pictureS.Image = drawer.createBitmap();
}
// direction E
using (drawer = new PreviewDrawer(pictureE.ClientSize, new Size(4, 2), 0)) {
drawer.draw(RailPattern.getSlope(Direction.EAST, 3), 3, 0);
drawer.draw(RailPattern.getSlope(Direction.EAST, 2), 2, 0);
drawer.draw(RailPattern.getSlope(Direction.EAST, 1), 0, 1);
drawer.draw(RailPattern.getSlope(Direction.EAST, 0), -1, 1);
if (pictureE.Image != null)
{
pictureE.Image.Dispose();
}
pictureE.Image = drawer.createBitmap();
}
// direction W
using (drawer = new PreviewDrawer(pictureW.ClientSize, new Size(4, 2), 0)) {
drawer.draw(RailPattern.getSlope(Direction.WEST, 3), 1, 0);
drawer.draw(RailPattern.getSlope(Direction.WEST, 2), 2, 0);
drawer.draw(RailPattern.getSlope(Direction.WEST, 1), 2, 1);
drawer.draw(RailPattern.getSlope(Direction.WEST, 0), 3, 1);
if (pictureW.Image != null)
{
pictureW.Image.Dispose();
}
pictureW.Image = drawer.createBitmap();
}
}
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;
}
}