+void Entity::AddFollower(Entity *f) {
+ if (follower) {
+ follower->AddFollower(f);
+ } else {
+ follower = f;
+ }
+}
+
+void Entity::RemoveFollower(Entity *f) {
+ if (follower == f) {
+ follower = follower->follower;
+ } else if (follower) {
+ follower->RemoveFollower(f);
+ }
+}
+
+void Entity::SetAnimation(const graphics::Animation *a) {
+ animation = a;
+ runner.ChangeAnimation(animation);
+}
+
+
+void Entity::UpdateVelocity() {
+ if (speed == 0.0f) {
+ velocity = Vector<float>();
+ return;
+ }
+ switch (orientation) {
+ case ORIENTATION_NORTH:
+ velocity = Vector<float>(0.0f, -speed);
+ break;
+ case ORIENTATION_EAST:
+ velocity = Vector<float>(speed, 0.0f);
+ break;
+ case ORIENTATION_SOUTH:
+ velocity = Vector<float>(0.0f, speed);
+ break;
+ case ORIENTATION_WEST:
+ velocity = Vector<float>(-speed, 0.0f);
+ break;
+ }