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package fr.umlv.java.wallj.block;
import fr.umlv.java.wallj.board.TileVec2;
import fr.umlv.java.wallj.context.Context;
import fr.umlv.java.wallj.context.GraphicsContext;
import fr.umlv.java.wallj.context.Updateables;
import fr.umlv.java.wallj.event.*;
import fr.umlv.java.wallj.event.Event;
import org.jbox2d.common.Vec2;
import org.jbox2d.dynamics.BodyType;
import java.awt.*;
import java.time.Duration;
import java.util.Objects;
import java.util.stream.Stream;
/**
* A bomb block.
*
* @author Pacien TRAN-GIRARD
* @author Adam NAILI
*/
public class BombBlock extends JBoxBlock {
private static final Duration TIME_INCREMENT = Duration.ofSeconds(1);
private static final Duration MIN_TIME = Duration.ofSeconds(1);
private static final Duration MAX_TIME = Duration.ofSeconds(9);
private Duration timer = MIN_TIME;
BombBlock(Vec2 pos) {
super(BlockType.BOMB, BodyType.STATIC, SolidDef.squareShape(), pos);
}
private void incrementTimer() {
timer = timer.compareTo(MAX_TIME) <= 0 ? timer.plus(TIME_INCREMENT) : MIN_TIME;
}
private void decrementTimer(Duration d) {
if (timer.isNegative()) throw new IllegalStateException("This bomb has already exploded.");
timer = timer.minus(d);
}
@Override
public Stream<Event> update(Context context) {
return Updateables.updateAll(context,
this::handleBombConfiguration,
this::consume,
this::paint);
}
private Stream<Event> handleBombConfiguration(Context context) {
Events.findFirst(context.getEvents(), BombTimerIncrEvent.class)
.filter(event -> Objects.equals(event.getPos(), TileVec2.of(getPos())))
.ifPresent(event -> incrementTimer());
return Stream.empty();
}
private Stream<Event> consume(Context context) {
decrementTimer(context.getTimeDelta());
return timer.isNegative() ?
Stream.of(new BombExplosionEvent(TileVec2.of(getPos())), new BlockDestroyEvent(this)) :
Stream.empty();
}
private Stream<Event> paint(Context context) {
GraphicsContext graphicsContext = context.getGraphicsContext();
graphicsContext.paintCircle(Color.BLACK, getPos(), TileVec2.TILE_DIM);
Vec2 textPosition = getPos();
textPosition.x += TileVec2.TILE_DIM / 4.0f;
textPosition.y += 3 * TileVec2.TILE_DIM / 4.0f;
graphicsContext.paintString(Color.RED, textPosition, Long.toString(timer.getSeconds()));
return Stream.empty();
}
}
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