/// <summary> /// Update the scene based on inputs /// </summary> /// <param name="dt"> A delta time since the last update was called </param> /// <param name="input"> Generic input </param> public override void Update(TimeSpan dt, GenericInput input) { if (mp.PlaybackSession.PlaybackState != MediaPlaybackState.Playing) { mp.PlaybackSession.Position = TimeSpan.Zero; mp.Play(); } foreach (Hero hero in heros) { //update each generic item hero.Update(dt, input); } foreach (Villain villain in villains) { villain.Update(dt, input); //reset the bosses hit image to default image after 300ms of no hits if (villain is Boss) { villain.TimeSinceCollision = DateTime.Now - villain.LastCollision; if (villain.TimeSinceCollision.TotalMilliseconds > 300 && villain.HurtImage) { villain.SetBitmapFromImageDictionary("Boss"); } } //update the hero's location to each villain foreach (Hero hero in heros) { villain.HeroLocation = hero.Location; } } foreach (GenericItem gi in objects) { //update each generic item gi.Update(dt, input); //find out if any of the attacks hit the villains or hero if (gi is Attack) { Attack attack = (Attack)gi; switch (attack.Type) { case (Attack.AttackType.Hero_Arrow): { foreach (Villain villain in villains) { var villainRect = villain.BoundingRectangle; villainRect.Intersect(gi.BoundingRectangle); if (!villainRect.IsEmpty) { villain.TimeSinceCollision = DateTime.Now - villain.LastCollision; if (villain.TimeSinceCollision.TotalMilliseconds > villain.iFrames) { Message_Collision villain_collision = new Message_Collision("Arrow", gi, villain); MessageManager.AddMessageItem(villain_collision); villain.LastCollision = DateTime.Now; if (villain is Boss) { villain.SetBitmapFromImageDictionary("BossHurt"); villain.HurtImage = true; } } } } break; } case (Attack.AttackType.Boss_Arrow): { foreach (Hero hero in heros) { var heroRect = hero.BoundingRectangle; heroRect.Intersect(gi.BoundingRectangle); if (!heroRect.IsEmpty) { hero.TimeSinceCollision = DateTime.Now - hero.LastCollision; if (hero.TimeSinceCollision.TotalMilliseconds > hero.iFrames) { Message_Collision hero_collision = new Message_Collision("Arrow", gi, hero); MessageManager.AddMessageItem(hero_collision); hero.LastCollision = DateTime.Now; } } } break; } } } } }
/// <summary> /// Update timer for the game, this should run 120 times a second (default). /// </summary> /// <param name="sender"></param> /// <param name="e"></param> void UpdateTimer_Tick(object sender, object e) { if (!IsUpdating) { IsUpdating = true; //find delta t TimeSpan dt = DateTime.Now - LastUpdateTime; //Update LastUpdateTime LastUpdateTime = DateTime.Now; //Update the total app time TotalAppTime += dt; //get the current input from the input manager GenericInput gi = InputManager.Update(); GenericMessage gm = MessageManager.Update(); if (StoryBoard.Update(dt, gm)) { } else { if (null != StoryBoard.CurrentScene) { StoryBoard.CurrentScene.Update(dt, gi); StoryBoard.CurrentScene.Update(dt, gm); gi = InputManager.PeekAndTake(typeof(MouseGenericInput)); while (gi is MouseGenericInput) { StoryBoard.CurrentScene.Update(TimeSpan.Zero, gi); gi = InputManager.PeekAndTake(typeof(MouseGenericInput)); } gm = MessageManager.PeekAndTake(typeof(Message_Attack)); while (gm is Message_Attack) { StoryBoard.CurrentScene.Update(TimeSpan.Zero, gm); gm = MessageManager.PeekAndTake(typeof(Message_Attack)); } gi = InputManager.PeekAndTake(typeof(Message_Collision)); while (gm is Message_Collision) { StoryBoard.CurrentScene.Update(TimeSpan.Zero, gm); gm = MessageManager.PeekAndTake(typeof(Message_Collision)); } } } //Figure out if we need to refresh the screen TimeSpan dt_Draw = DateTime.Now - LastDrawTime; if (dt_Draw.Milliseconds > TimeBetweenDraw.Milliseconds) { //call refresh if (null != ParentCanvas) { ParentCanvas.Invalidate(); LastDrawTime = DateTime.Now; } } IsUpdating = false; } }
/// <summary> /// Updates the scene based on incoming messages /// </summary> /// <param name="dt">Delta time since thew last update was called</param> /// <param name="message"> incoming message</param> public override void Update(TimeSpan dt, GenericMessage message) { foreach (GenericItem gi in objects) { //update each generic item gi.Update(dt, message); } foreach (Hero hero in heros) { //update each generic item hero.Update(dt, message); } foreach (Villain villain in villains) { //update each generic item villain.Update(dt, message); } if (message is Message_Attack) { Message_Attack mhe = (Message_Attack)message; switch (mhe.Type) { case (Message_Attack.AttackType.Hero_Arrow): { //(Terry)TODO: add rotation to arrows, this might require using something other than CanvasBitmap images Attack attack = new Attack(mhe.Name, mhe.DirectionX, mhe.DirectionY, mhe.Location, Attack.AttackType.Hero_Arrow, mhe.Range, mhe.Damage); attack.SetBitmapFromImageDictionary("Arrow"); this.AddObject(attack); break; } case (Message_Attack.AttackType.Minion_Arrow): { Attack arrow = new Attack(mhe.Name, mhe.DirectionX, mhe.DirectionY, mhe.Location, Attack.AttackType.Boss_Arrow, mhe.Range, mhe.Damage); arrow.SetBitmapFromImageDictionary("Arrow"); this.AddObject(arrow); break; } } } //if two generic items on the canvas have collided find out what collided and apply aprpriate damage if (message is Message_Collision) { Message_Collision attackInfo = (Message_Collision)message; if (attackInfo.CollisionObject is Attack) { Attack attack = (Attack)attackInfo.CollisionObject; //if the boss is hit by an attack, increase score, reduce bosses health and remove the attack if (attackInfo.Victim is Boss) { Boss boss = (Boss)attackInfo.Victim; boss.CurrentHealth -= attack.Damage; Score += attack.Damage; _score_label.UpdateText("SCORE: " + Score); objects.Remove(attackInfo.CollisionObject); if (boss.CurrentHealth <= 0.0f) { boss.Level += 1; boss.MaxHealth += 100; boss.CurrentHealth = boss.MaxHealth; } } // if the attack hit a minion, remove the attack and the minion else if (attackInfo.Victim is Villain) { Villain villain = (Villain)attackInfo.Victim; villains.Remove(villain); objects.Remove(attackInfo.CollisionObject); } //if the attack hit the hero, reduce hero's health and check for game over else if (attackInfo.Victim is Hero) { Hero hero = (Hero)attackInfo.Victim; hero.CurrentHealth -= attack.Damage; objects.Remove(attackInfo.CollisionObject); if (hero.CurrentHealth <= 0) { heros.Remove(hero); //add tombstone image where hero died? // If all heroes (spelled correctly this time) have died it's game over if (heros.Count <= 0) { game_over = true; } } } } } // switch to game over scene if (game_over) { Message_SceneSwitch mss = new Message_SceneSwitch("Game Over Scene"); MessageManager.AddMessageItem(mss); } if (message is Message_SpawnMinions) { Message_SpawnMinions spawn = (Message_SpawnMinions)message; Random r = new Random(); for (int i = 0; i < spawn.NumberOfMinions; i++) { Villain villain = new Villain("minion"); villain.Location = new System.Numerics.Vector2(r.Next(0, _width), r.Next(0, _height)); villain.SetBitmapFromImageDictionary("MinionLeft"); this.AddObject(villain); } } }