Enemy NPC speed alteration

Overview

The speed component of Enemy NPC's is altered in the declaration of the enemy in the EnemyFactory.java file. The physical component of the entity is retrieved through a 'get' and then the speed is changed through the "changeMaxSpeed" function. The NPC's speed is specified in the NPCs.json file under each entity with the attribute "speed".

Methods Called

• getComponent(PhysicsMovementComponent.class): Calls the instance of the physics component for the current entity.
• Vector2(config.speed, config.speed): new Vector 2 instance containing the speed of the enemy NPC, has an X and Y component.
• changeMaxSpeed(Vector2()): Alters an entities speed to the specified speed in the inserted Vector.

Event Triggers

• On entity spawn: In enemyFactory, when entity is spawned, methods are called to update the entity instance speed.

Example Usage of update speed:

public class EnemyFactory {
  public static Entity createChicken(Entity target) {
    BaseEntityConfig config = NPCConfigs.chicken;
    chicken.getComponent(PhysicsMovementComponent.class).changeMaxSpeed(new Vector2(config.speed, config.speed));