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package fr.umlv.java.wallj.viewer;
import fr.umlv.java.wallj.board.Board;
import fr.umlv.java.wallj.board.TileVec2;
import fr.umlv.java.wallj.context.Context;
import fr.umlv.java.wallj.context.Game;
import fr.umlv.java.wallj.context.GraphicsContext;
import fr.umlv.java.wallj.event.*;
import fr.umlv.java.wallj.event.Event;
import fr.umlv.zen5.ApplicationContext;
import fr.umlv.zen5.ScreenInfo;
import org.jbox2d.common.Vec2;
import java.awt.*;
import java.awt.geom.Point2D;
import java.time.Duration;
import java.util.LinkedList;
import java.util.List;
import java.util.Objects;
import java.util.stream.Collectors;
import java.util.stream.Stream;
/**
* Link between application and Zen 5
*
* @author Adam NAILI
* @author Pacien TRAN-GIRARD
*/
public final class Viewer {
public static final Color BACKGROUND_COLOR = Color.WHITE;
private static final Duration FRAME_DURATION = Duration.ofMillis(1000 / 60);
private static int EXIT_OK = 0;
private final ApplicationContext appContext;
private final Game game;
/**
* @param boards the valid list of boards charged in the application
*/
public Viewer(ApplicationContext appContext, List<Board> boards) {
this.appContext = Objects.requireNonNull(appContext);
this.game = new Game(boards);
}
/**
* Launches the application
*/
public void run() {
List<Event> forwardEvents = new LinkedList<>();
Duration lastExec = Duration.ZERO;
while (!game.isOver()) {
final Duration lastExecCopy = lastExec;
StopWatch stopWatch = new StopWatch();
List<Event> events = Stream.concat(forwardEvents.stream(), mapInputEvent()).collect(Collectors.toList());
forwardEvents.clear();
appContext.renderFrame(graphics2D -> {
GraphicsContext graphicsContext = new GraphicsContext(graphics2D, appContext.getScreenInfo());
clearScreen(graphicsContext);
Context context = new Context(game, events, graphicsContext, lastExecCopy);
game.update(context).forEach(forwardEvents::add);
});
sleep(FRAME_DURATION.minus(stopWatch.peek()));
lastExec = stopWatch.peek();
}
appContext.exit(EXIT_OK);
}
private Stream<Event> mapInputEvent() {
fr.umlv.zen5.Event inputEvent = appContext.pollEvent();
if (inputEvent == null) return Stream.empty();
switch (inputEvent.getAction()) {
case POINTER_DOWN:
Point2D.Float clickLocation = inputEvent.getLocation();
TileVec2 tile = TileVec2.of(new Vec2(clickLocation.x, clickLocation.y));
return Stream.of(new MoveRobotOrder(tile));
case KEY_PRESSED:
switch (inputEvent.getKey()) {
case SPACE:
return Stream.of(new BombSetupOrder());
case R:
return Stream.of(new ConfirmOrder());
case Q:
return Stream.of(new QuitGameOrder());
case S:
return Stream.of(new SimulationStartOrder());
default:
return Stream.empty();
}
default:
return Stream.empty();
}
}
private void clearScreen(GraphicsContext graphicsContext) {
ScreenInfo window = graphicsContext.getScreenInfo();
graphicsContext.paintRectangle(BACKGROUND_COLOR, new Vec2(), window.getWidth(), window.getHeight());
}
private void sleep(Duration duration) {
try {
if (!duration.isNegative()) Thread.sleep(duration.toMillis());
} catch (InterruptedException e) {
throw new RuntimeException(e);
}
}
}
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