Added Bombship Movement Task

source/core/src/main/com/csse3200/game/components/tasks/bombship/BombshipMovementTask.java

@@ -0,0 +1,84 @@
+package com.csse3200.game.components.tasks;
+
+import com.badlogic.gdx.math.Vector2;
+import com.csse3200.game.ai.tasks.DefaultTask;
+import com.csse3200.game.physics.components.PhysicsMovementComponent;
+import com.csse3200.game.services.GameTime;
+import com.csse3200.game.services.ServiceLocator;
+
+/**
+ * Move the ship entity to a given position, finishing when you get close enough. Requires an entity with a
+ * PhysicsMovementComponent.
+ */
+public class BombshipMovementTask extends DefaultTask {
+
+  private final GameTime gameTime;
+  private Vector2 target;
+  private float stopDistance = 0.01f;
+  private long lastTimeMoved;
+  private Vector2 lastPos;
+  private PhysicsMovementComponent movementComponent;
+
+  public BombshipMovementTask(Vector2 target) {
+    this.target = target;
+    this.gameTime = ServiceLocator.getTimeSource();
+  }
+
+  public BombshipMovementTask(Vector2 target, float stopDistance) {
+    this(target);
+    this.stopDistance = stopDistance;
+  }
+
+  @Override
+  public void start() {
+    super.start();
+    this.movementComponent = owner.getEntity().getComponent(PhysicsMovementComponent.class);
+    movementComponent.setTarget(target);
+    movementComponent.setMoving(true);
+    //making the ship move
+    owner.getEntity().getEvents().trigger("start");
+
+    lastTimeMoved = gameTime.getTime();
+    lastPos = owner.getEntity().getPosition();
+  }
+
+  @Override
+  public void update() {
+    if (isAtTarget()) {
+      movementComponent.setMoving(false);
+      owner.getEntity().getEvents().trigger("idle");
+      status = Status.FINISHED;
+    } else {
+      checkIfStuck();
+    }
+  }
+
+  public void setTarget(Vector2 target) {
+    this.target = target;
+    movementComponent.setTarget(target);
+  }
+
+  @Override
+  public void stop() {
+    super.stop();
+    movementComponent.setMoving(false);
+  }
+
+  private boolean isAtTarget() {
+    return owner.getEntity().getPosition().dst(target) <= stopDistance;
+  }
+
+  private void checkIfStuck() {
+    if (didMove()) {
+      lastTimeMoved = gameTime.getTime();
+      lastPos = owner.getEntity().getPosition();
+    } else if (gameTime.getTimeSince(lastTimeMoved) > 500L) {
+      movementComponent.setMoving(false);
+      status = Status.FAILED;
+    }
+  }
+
+  private boolean didMove() {
+    return owner.getEntity().getPosition().dst2(lastPos) > 0.001f;
+  }
+}