/// <summary>
/// Update the StoryBoard.
/// </summary>
/// <param name="dt">The delta time.</param>
/// <param name="input">The input item if any.</param>
public static bool Update(TimeSpan dt, GenericMessage message)
{
// The STORYBOARD should only response to Low Level Game Events like SceneSwitch
if (message is Message_SceneSwitch)
{
if (null != CurrentScene.mp)
{
CurrentScene.mp.Pause();
CurrentScene.mp.PlaybackSession.Position = TimeSpan.Zero;
}
Message_SceneSwitch mss = message as Message_SceneSwitch;
// find the scene
if (SceneDictionary.ContainsKey(mss.TargetScene))
{
// push the scene on to the history
SceneHistory.Push(CurrentScene);
// switch and kill the message
CurrentScene = SceneDictionary[mss.TargetScene];
CurrentScene.Reset();
if (AudioManager.AudioDictionary.TryGetValue(mss.TargetScene, out CurrentScene.mp))
{
CurrentScene.mp.Play();
}
}
return(true);
}
else if (message is Message_GoBack)
{
// check to see if the history list is empty
if (SceneHistory.Count == 0)
{
//Do nothing
}
else
{
// Pop the scene from the history list and set it as the current scene
CurrentScene = SceneHistory.Pop();
CurrentScene.Reset();
}
return(true);
}
return(false);
}
/// <summary>
/// Set up the initial state of the scene
/// </summary>
public override void SetupScene()
{
// design the scene manually
GenericItem title = new GenericItem("Title");
title.Location = new System.Numerics.Vector2(500, 100);
title.SetBitmapFromImageDictionary("GameOver");
this.AddObject(title);
CenterObject(title, true, false);
_start_button = new EvilutionButton("Main Menu", Colors.White, 350, 50);
CenterObject(_start_button);
this.AddObject(_start_button);
if (StoryBoard.SceneHistory.Count > 0)
{
Score = StoryBoard.SceneHistory.Peek().Score;
}
_score_label = new EvilutionLabel("SCORE: " + Score, Colors.White, (uint)(this._width * 0.90f), 100);
_score_label.Y = _start_button.Y - 200;
_score_label.FontSize = 50;
CenterObject(_score_label, true, false);
this.AddObject(_score_label);
// event callbacks
_start_button.ButtonClick += _start_button_ButtonClick;
void _start_button_ButtonClick(object sender, EvilutionButton_Event e)
{
// create the scene switch message to switch the current scene to the main game scene
Message_SceneSwitch mss = new Message_SceneSwitch("Generic Title Scene");
MessageManager.AddMessageItem(mss);
}
}
/// <summary>
/// Setup the initial state of the scene
/// </summary>
public override void SetupScene()
{
// design the scene manually
//Title scene is the only sene that starts playing audio by default
if (AudioManager.AudioDictionary.TryGetValue("Generic Title Scene", out mp))
{
mp.Play();
}
//Evilution Title
GenericItem title = new GenericItem("Title");
title.Location = new System.Numerics.Vector2(500, 200);
title.SetBitmapFromImageDictionary("Title");
this.AddObject(title);
CenterObject(title, true, false);
//Buttons
_start_button = new EvilutionButton("New Game", Colors.White, 350, 50);
_top_score_button = new EvilutionButton("Top Scores", Colors.White, 350, 50);
_credits_button = new EvilutionButton("Credits", Colors.DarkGray, 350, 50);
//Center Buttons
CenterObject(_start_button);
_top_score_button.Location = new Vector2(_start_button.Location.X, _start_button.Location.Y + _start_button.Size.Height + 10);
_credits_button.Location = new Vector2(_top_score_button.Location.X, _top_score_button.Location.Y + _top_score_button.Size.Height + 10);
this.AddObject(_start_button);
this.AddObject(_top_score_button);
this.AddObject(_credits_button);
// event callbacks
_start_button.ButtonClick += _start_button_ButtonClick;
_top_score_button.ButtonClick += _top_score_button_ButtonClick;
_credits_button.ButtonClick += _credits_button_ButtonClick;
void _credits_button_ButtonClick(object sender, EvilutionButton_Event e)
{
// create the scene switch message to switch the current scene to the credits scene
Message_SceneSwitch mss = new Message_SceneSwitch("Credits Scene");
MessageManager.AddMessageItem(mss);
}
void _top_score_button_ButtonClick(object sender, EvilutionButton_Event e)
{
// create the scene switch message to switch the current scene to the top score scene
Message_SceneSwitch mss = new Message_SceneSwitch("Top Score Scene");
MessageManager.AddMessageItem(mss);
}
void _start_button_ButtonClick(object sender, EvilutionButton_Event e)
{
// create the scene switch message to switch the current scene to the main game scene
Message_SceneSwitch mss = new Message_SceneSwitch("Main Game Scene");
MessageManager.AddMessageItem(mss);
}
}
/// <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);
}
}
}