fp: Add cooldowns to attacks

feely_pona_game.cpp

@@ -723,3 +723,29 @@ FP_GameFindClosestEntityResult FP_Game_FindClosestEntityWithType(FP_Game *game,
 
     return result;
 }
+
+static bool FP_Game_CanEntityAttack(FP_GameEntity *entity, uint64_t current_time_ms)
+{
+    bool result = (current_time_ms - entity->last_attack_timestamp) >= entity->attack_cooldown_ms;
+
+    return result;
+}
+
+static void FP_Game_EntityTransitionState(FP_Game *game, FP_GameEntity *entity, uint32_t desired_state)
+{
+    switch (desired_state) {
+        case FP_EntityClingerState_Attack: {
+            if (entity->type == FP_EntityType_ClubTerry) {
+                break;
+            }
+            if (!FP_Game_CanEntityAttack(entity, game->clock_ms)) {
+                // NOTE: Cooldown not met do not transition
+                return;
+            }
+
+            entity->last_attack_timestamp = game->clock_ms;
+        } break;
+    }
+    // NOTE: If no returns are hit above we proceed with the state change
+    entity->action.next_state = desired_state;
+}