feat: drag for enemy is now calculated in EnemyUpdate

instead of separately in the states

game/src/Enemy.c

@@ -95,6 +95,10 @@ Enemy* SpawnEnemy(Vector location, const State* entryState) {
 void EnemyStart(Enemy* self) {}
 
 void EnemyUpdate(Enemy* self, float deltaTime) {
+    // apply drag
+    Vector velocity = vmovetowardsf(rigidbody_get_velocity(self->rigidbody), ZeroVector, 0.1f);
+    rigidbody_set_velocity(self->rigidbody, velocity);
+    // update state machine
     state_machine_update(self->behaviour, deltaTime);
 }
 
@@ -142,7 +146,7 @@ int EnemyDamage(Enemy* self, DamageEventData* data) {
         // get stunned 
         self->stun_time = game_time() + data->stun;
         // calculate which direction the damage is coming from
-        float direction = ((data->origin.x - self->transform.position.x) > 0) * 2 - 1;
+        const float direction = (data->origin.x - self->transform.position.x) >= 0.0f ? 1.0f : -1.0f;
         // face the direction damage is coming from
         self->facing = direction;
         // add knockback according to damage data in the calculated direction

game/src/EnemyStates.c

@@ -11,9 +11,6 @@ void EnemyIdle_Enter(Enemy* self) {
 }
 
 const State* EnemyIdle_Update(Enemy* self, float deltaTime) {
-    // apply drag
-    Vector velocity = vmovetowardsf(rigidbody_get_velocity(self->rigidbody), ZeroVector, 0.1f);
-    rigidbody_set_velocity(self->rigidbody, velocity);
     // state transitions
     if(self->stun_time >= game_time())
         return EnemyHurt();
@@ -36,9 +33,6 @@ void EnemyHurt_Enter(Enemy* self) {
 
 const State* EnemyHurt_Update(Enemy* self, float deltaTime) {
     const float time = animation_sprite_get_time(self->currentAnimation);
-    // apply drag
-    Vector velocity = vmovetowardsf(rigidbody_get_velocity(self->rigidbody), ZeroVector, 0.1f);
-    rigidbody_set_velocity(self->rigidbody, velocity);
     // state transitions
     if(self->stun_time < game_time())
         return EnemyIdle();