Class Bulldozer

micropolis-java/src/micropolisj/engine/Bulldozer.java:13–117

import static micropolisj.engine.TileConstants.*;

class Bulldozer extends ToolStroke
{
	Bulldozer(Micropolis city, int xpos, int ypos)
	{
		super(city, MicropolisTool.BULLDOZER, xpos, ypos);
	}

	@Override
	protected void applyArea(ToolEffectIfc eff)
	{
		CityRect b = getBounds();

		// scan selection area for rubble, forest, etc...
		for (int y = 0; y < b.height; y++) {
			for (int x = 0; x < b.width; x++) {

				ToolEffectIfc subEff = new TranslatedToolEffect(eff, b.x+x, b.y+y);
				if (city.isTileDozeable(subEff)) {

					dozeField(subEff);
				}

			}
		}

		// scan selection area for zones...
		for (int y = 0; y < b.height; y++) {
			for (int x = 0; x < b.width; x++) {

				if (isZoneCenter(eff.getTile(b.x+x,b.y+y))) {
					dozeZone(new TranslatedToolEffect(eff, b.x+x, b.y+y));
				}
			}
		}
	}

	void dozeZone(ToolEffectIfc eff)
	{
		int currTile = eff.getTile(0, 0);

		// zone center bit is set
		assert isZoneCenter(currTile);

		CityDimension dim = getZoneSizeFor(currTile);
		assert dim != null;
		assert dim.width >= 3;
		assert dim.height >= 3;

		eff.spend(1);

		// make explosion sound;
		// bigger zones => bigger explosions

		if (dim.width * dim.height < 16) {
			eff.makeSound(0, 0, Sound.EXPLOSION_HIGH);
		}
		else if (dim.width * dim.height < 36) {
			eff.makeSound(0, 0, Sound.EXPLOSION_LOW);