.

bac1/q2/algo/tp7/spirale/app/src/main/java/spirale/App.java

@@ -0,0 +1,77 @@
+package spirale;
+
+import javafx.application.Application;
+import javafx.scene.*;
+import javafx.scene.layout.*;
+import javafx.scene.paint.*;
+import javafx.scene.control.*;
+import javafx.scene.canvas.*;
+import javafx.stage.Stage;
+import javafx.geometry.Pos;
+
+public class App extends Application {
+
+	private BorderPane root;
+	private Button next;
+	private HBox top;
+	private Generator gen;
+	private Canvas can;
+
+	@Override
+	public void start(Stage primaryStage){
+		final int[] last_pos_x = {400};
+		final int[] last_pos_y = { 400 };
+		final int[] last_pos_state = { 0 };
+		gen = new Fibonacci();
+		can = new Canvas(800,800);
+		GraphicsContext con = can.getGraphicsContext2D();
+		con.setFill(Color.BLUE);
+
+		root = new BorderPane();
+
+		top = new HBox();
+		next = new Button("Next");
+		next.setOnAction((x) -> {
+			int curr = gen.next();
+			System.out.println(curr);
+			int next_pos_x = last_pos_x[0], next_pos_y = last_pos_y[0];
+			switch (last_pos_state[0]) {
+				case 0: 
+					next_pos_x = last_pos_x[0];
+					next_pos_y = last_pos_y[0] + curr;
+					break;
+				case 1: 
+					next_pos_x = last_pos_x[0] + curr;
+					next_pos_y = last_pos_y[0];
+					break;
+				case 2: 
+					next_pos_x = last_pos_x[0];
+					next_pos_y = last_pos_y[0] - curr;
+					break;
+				case 3: 
+					next_pos_x = last_pos_x[0] - curr;
+					next_pos_y = last_pos_y[0];
+					break;
+			}
+			last_pos_state[0]++;
+			last_pos_state[0] = last_pos_state[0] % 4;
+			con.strokeLine(last_pos_x[0], last_pos_y[0], next_pos_x, next_pos_y);
+			last_pos_x[0] = next_pos_x;
+			last_pos_y[0] = next_pos_y;
+		});
+		top.getChildren().add(next);
+		top.setAlignment(Pos.CENTER);
+
+		root.setTop(top);
+		root.setCenter(can);
+
+		Scene scene = new Scene(root);
+		primaryStage.setScene(scene);
+		primaryStage.setTitle("Mon paneau");
+		primaryStage.show();
+	}
+
+	public static void main(String[] args) {
+		launch();
+    }
+}

bac1/q2/algo/tp7/spirale/app/src/main/java/spirale/Fibonacci.java

@@ -0,0 +1,15 @@
+package spirale;
+
+public class Fibonacci implements Generator{
+	private int last1 = 0, last2 = 0;
+
+	public int next(){
+		int tmp = last1 + last2;
+		if(tmp == 0){
+			tmp = 1;
+		}
+		last2 = last1;
+		last1 = tmp;
+		return tmp;
+	}
+}

bac1/q2/algo/tp7/spirale/app/src/main/java/spirale/Generator.java

@@ -0,0 +1,5 @@
+package spirale;
+
+public interface Generator {
+	int next();
+}

bac1/q2/algo/tp7/spirale/app/src/test/java/spirale/AppTest.java

@@ -0,0 +1,14 @@
+/*
+ * This Java source file was generated by the Gradle 'init' task.
+ */
+package spirale;
+
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.*;
+
+class AppTest {
+    @Test void appHasAGreeting() {
+        App classUnderTest = new App();
+        assertNotNull(classUnderTest.getGreeting(), "app should have a greeting");
+    }
+}