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GameView.java
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GameView.java
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package org.snake.viewmodel;
import javafx.animation.Animation;
import javafx.animation.KeyFrame;
import javafx.animation.Timeline;
import javafx.event.EventHandler;
import javafx.fxml.FXML;
import javafx.scene.control.Label;
import javafx.scene.input.KeyCode;
import javafx.scene.input.KeyEvent;
import javafx.scene.layout.Pane;
import javafx.scene.paint.Color;
import javafx.scene.shape.Rectangle;
import javafx.util.Duration;
import lombok.Getter;
import lombok.Setter;
import org.snake.logger.MyLogger;
import org.snake.model.Element;
import org.snake.model.GameModel;
import org.snake.utils.ChangeSceneManager;
import org.snake.utils.SceneController;
/**
* GameView is middle ModelView class.
*/
public class GameView implements View {
@FXML
private Label score;
@FXML
private Pane pane;
private GameModel model;
private Timeline timeline;
@Getter
@Setter
private static int difficulty;
/**
* Method starts game.
*/
public void startScene() {
model = new GameModel(SceneController.WIDTH / SceneController.CELL_SIZE,
SceneController.HEIGHT / SceneController.CELL_SIZE);
ChangeSceneManager.getCurrentScene().setOnKeyPressed(new EventHandler<KeyEvent>() {
@Override
public void handle(KeyEvent event) {
if (model.isMoving()) {
return;
}
model.setMoving(true);
KeyCode code = event.getCode();
if (code == KeyCode.LEFT) {
model.getPlayerSnake().turnLeft();
} else if (code == KeyCode.RIGHT) {
model.getPlayerSnake().turnRight();
} else if (code == KeyCode.UP) {
model.getPlayerSnake().turnUp();
} else if (code == KeyCode.DOWN) {
model.getPlayerSnake().turnDown();
}
}
});
timeline = new Timeline(new KeyFrame(Duration.millis(difficulty), e -> {
update();
}));
timeline.setCycleCount(Animation.INDEFINITE);
timeline.play();
MyLogger.info("Game started", getClass());
}
/**
* Updates the game screen every frame.
*/
private void updateScreen() {
pane.getChildren().clear();
for (Element element : model.getPlayerSnake().getBody()) {
drawRectangle(Color.GREEN, element.getXcord(), element.getYcord());
}
for (Element element : model.getGameSnake().getBody()) {
drawRectangle(Color.AQUA, element.getXcord(), element.getYcord());
}
drawRectangle(Color.RED, model.getFood().getXcord(), model.getFood().getYcord());
}
/**
* Helper for updating screen.
*/
private void update() {
model.update();
updateScreen();
score.setText(String.valueOf(model.getPlayerSnake().getLength()));
if (model.isGameOvered) {
gameOver();
}
}
/**
* Calls if game was overed for player.
*/
private void gameOver() {
pane.getChildren().clear();
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
model = new GameModel(SceneController.WIDTH / SceneController.CELL_SIZE,
SceneController.HEIGHT / SceneController.CELL_SIZE);
model.isGameOvered = false;
}
/**
* Draws a rectangle on the game board.
*
* @param color the color of the rectangle
* @param x the x-coordinate of the rectangle
* @param y the y-coordinate of the rectangle
*/
private void drawRectangle(Color color, double x, double y) {
Rectangle rect = new Rectangle(
x * SceneController.CELL_SIZE,
y * SceneController.CELL_SIZE,
SceneController.CELL_SIZE,
SceneController.CELL_SIZE
);
rect.setFill(color);
pane.getChildren().add(rect);
}
}