public void Update(Area area, GameTime gameTime)
{
OnUpdate(area, gameTime);
// Bewegung
if (destination.HasValue)
{
Vector2 expectedDistance = destination.Value - startPoint.Value;
Vector2 currentDistance = Host.Position - startPoint.Value;
// Prüfen ob das Ziel erreicht (oder überschritten) wurde.
if (currentDistance.LengthSquared() > expectedDistance.LengthSquared())
{
startPoint = null;
destination = null;
Host.Velocity = Vector2.Zero;
}
else
{
// Kurs festlegen
Vector2 direction = destination.Value - Host.Position;
direction.Normalize();
Host.Velocity = direction * speed * Host.MaxSpeed;
}
}
}
/// <summary>
/// Lädt alle Areas die sich aktuell im Maps-Verzeichnis befinden.
/// </summary>
public static Area[] LoadAll(ref int nextId)
{
// Alle json-Files im Map-Folder suchen
string mapPath = ".\\Maps";
var files = Directory.GetFiles(mapPath, "*.json");
// Alle gefundenen json-Files laden
Area[] result = new Area[files.Length];
for (int i = 0; i < files.Length; i++)
result[i] = LoadFromJson(files[i], ref nextId);
return result;
}
public override void OnUpdate(Area area, GameTime gameTime)
{
// Initiales Zentrum festlegen
if (!center.HasValue)
center = Host.Position;
if (!Walking)
{
// Delay abwarten
if (delay > TimeSpan.Zero)
{
delay -= gameTime.ElapsedGameTime;
return;
}
// Neuen Zielpunkt wählen
Vector2 variation = new Vector2(
(float)(Random.NextDouble() * 2 - 1.0),
(float)(Random.NextDouble() * 2 - 1.0));
WalkTo(center.Value + variation * 2 * range, 0.4f);
delay = TimeSpan.FromSeconds(2);
}
}
public override void OnUpdate(Area area, GameTime gameTime)
{
// Referenzpunkt ermitteln
if (!startPoint.HasValue)
startPoint = Host.Position;
// Nach zielen ausschau halten
if (target == null)
{
var potentialTargets = area.Items.
Where(i => (i.Position - Host.Position).LengthSquared() < range * range). // Filter nach Angriffsreichweite
Where(i => i.GetType() != Host.GetType()). // Items vom selben Typ verschonen
OrderBy(i => (i.Position - Host.Position).LengthSquared()). // Sortiert nach Entfernung
OfType<IAttackable>(). // Gefiltert nach Angreifbarkeit
Where(a => a.Hitpoints > 0); // Gefiltert nach Lebendigkeit
target = potentialTargets.FirstOrDefault() as Item;
}
// Ziel angreifen
if (target != null)
{
attacker.AttackSignal = true;
// Bei zu großem Abstand vom Ziel ablassen
if ((target.Position - Host.Position).LengthSquared() > range * range ||
(target as IAttackable).Hitpoints <= 0)
{
target = null;
WalkTo(startPoint.Value, 0.4f);
}
else
{
WalkTo(target.Position, 0.6f);
}
}
}
public override void Update(GameTime gameTime)
{
maxVolume = game.Settings.MusicVolume * 0.05f;
// Nur wenn Komponente aktiviert wurde.
if (!Enabled)
return;
// Nur arbeiten, wenn es eine Welt, einen Player und eine aktive Area gibt.
Area area = game.Local.GetCurrentArea();
if (currentArea != area)
{
currentArea = area;
if (currentArea != null)
Play(currentArea.Song);
}
// Override verhindern
if (currentEffect == nextEffect)
nextEffect = null;
// Ausfaden
if (currentEffect != null && nextEffect != null)
{
float currentVolume = currentSong.Volume;
currentVolume -= (float)gameTime.ElapsedGameTime.TotalMilliseconds / totalFadeTime;
if (currentVolume <= 0f)
{
// Ausschalten
currentSong.Volume = 0;
currentSong.Stop();
currentSong.Dispose();
currentSong = null;
currentEffect = null;
}
else
{
// Leiser
currentSong.Volume = currentVolume;
}
}
// Einschalten
if (currentEffect == null && nextEffect != null)
{
currentEffect = nextEffect;
nextEffect = null;
// Initialisieren mit 0 Lautstärke
currentSong = currentEffect.CreateInstance();
currentSong.IsLooped = true;
currentSong.Volume = 0f;
currentSong.Play();
}
// Einfaden
if (currentEffect != null && nextEffect == null && currentSong.Volume < maxVolume)
{
float currentVolume = currentSong.Volume;
currentVolume += (float)gameTime.ElapsedGameTime.TotalMilliseconds / totalFadeTime;
currentVolume = Math.Min(currentVolume, maxVolume);
currentSong.Volume = currentVolume;
}
}
public override void Update(GameTime gameTime)
{
// Nur wenn Komponente aktiviert wurde.
if (!Enabled)
return;
// Nur arbeiten, wenn es eine Welt, einen Player und eine aktive Area gibt.
Area nextArea = game.Local.GetCurrentArea();
if (game.Simulation.World == null || game.Local.Player == null || nextArea == null)
return;
// Reset aller Variablen falls sich der Player ändert
if (player != game.Local.Player)
{
player = game.Local.Player;
coins = player.Inventory.Count(i => i is Coin);
recoveryTimes.Clear();
}
// Reset der Item variablen falls sich die Area ändert
if (area != nextArea)
{
area = nextArea;
// Recovery Times
recoveryTimes.Clear();
foreach (var item in area.Items.OfType<IAttacker>())
recoveryTimes.Add(item, item.Recovery);
// Hitpoints
hitpoints.Clear();
foreach (var item in area.Items.OfType<IAttackable>())
hitpoints.Add(item, item.Hitpoints);
}
// Coins
int c = player.Inventory.Count(i => i is Coin);
if (coins < c)
Play("coin");
coins = c;
// Sword
foreach (var item in area.Items.OfType<IAttacker>())
{
TimeSpan recovery;
if (!recoveryTimes.TryGetValue(item, out recovery))
{
recovery = item.Recovery;
recoveryTimes.Add(item, item.Recovery);
}
if (recovery < item.Recovery)
Play("sword");
recoveryTimes[item] = item.Recovery;
}
// Hit
foreach (var item in area.Items.OfType<IAttackable>())
{
int points;
if (!hitpoints.TryGetValue(item, out points))
{
points = item.Hitpoints;
hitpoints.Add(item, item.Hitpoints);
}
if (points > item.Hitpoints)
Play("hit");
hitpoints[item] = item.Hitpoints;
}
}
/// <summary>
/// Sendet einen Area/Inventar-Transfer des angegebenen Items an diesen Client.
/// </summary>
/// <param name="item">Item.</param>
/// <param name="oldArea">Old area.</param>
/// <param name="newArea">New area.</param>
/// <param name="oldInventory">Old inventory.</param>
/// <param name="newInventory">New inventory.</param>
public void SendMove(Item item, Area oldArea, Area newArea, IInventory oldInventory, IInventory newInventory)
{
if (oldArea != null)
{
if (newArea != null)
{
// Area to Area
// ItemId[int];OldArea[string];NewArea[string]
writer.Write((byte)MessageType.ServerMoveAreaToArea);
writer.Write((short)0);
writer.Write(item.Id);
writer.Write(oldArea.Name);
writer.Write(newArea.Name);
}
else
{
// Area to Inventory
// ItemId[int];OldArea[string];InventoryId[int]
writer.Write((byte)MessageType.ServerMoveAreaToInventory);
writer.Write((short)0);
writer.Write(item.Id);
writer.Write(oldArea.Name);
writer.Write((newInventory as Item).Id);
}
}
else
{
if (newArea != null)
{
// Inventory To Area
// ItemId[int];InventoryId[int];NewArea[string]
writer.Write((byte)MessageType.ServerMoveInventoryToArea);
writer.Write((short)0);
writer.Write(item.Id);
writer.Write((oldInventory as Item).Id);
writer.Write(newArea.Name);
}
else
{
// Inventory To Inventory
// ItemId[int];OldInventoryId[int];NewInventoryId[int]
writer.Write((byte)MessageType.ServerMoveInventoryToInventory);
writer.Write((short)0);
writer.Write(item.Id);
writer.Write((oldInventory as Item).Id);
writer.Write((newInventory as Item).Id);
}
}
int contentend = (int)writerStream.Position;
writerStream.Seek(1, SeekOrigin.Begin);
writer.Write((short)(contentend - 3));
writerStream.Seek(contentend, SeekOrigin.Begin);
Flush();
}
/// <summary>
/// Sendet einen Insert-Auftrag an den Client.
/// </summary>
/// <param name="item">Item.</param>
/// <param name="area">Area.</param>
/// <param name="inventory">Inventory.</param>
public void SendInsert(Item item, Area area, IInventory inventory)
{
try
{
if (area != null)
{
// Area[string];Type[string];Id[int];Payload[byte[]]
writer.Write((byte)MessageType.ServerInsertItemToArea);
writer.Write((short)0);
writer.Write(area.Name);
}
else
{
// InventoryId[int];Type[string];Id[int];Payload[byte[]]
writer.Write((byte)MessageType.ServerInsertItemToArea);
writer.Write((short)0);
writer.Write((inventory as Item).Id);
}
// Type ermitteln
writer.Write(item.GetType().FullName);
writer.Write(item.Id);
// Payload ermitteln und erstellen
item.SerializeInsert(writer);
int contentend = (int)writerStream.Position;
// Content Länge eintragen
writerStream.Seek(1, SeekOrigin.Begin);
writer.Write((short)(contentend - 3));
writerStream.Seek(contentend, SeekOrigin.Begin);
Flush();
}
catch (Exception ex)
{
Close(ex, false);
}
}
/// <summary>
/// Verarbeitet den Zustandsabgleich eines Items.
/// </summary>
/// <param name="item">Item referenz</param>
/// <param name="area">Area in der das Item liegt (oder null, falls Inventar)</param>
/// <param name="inventory">Inventar in dem sich das Item befindet (oder null, falls Area)</param>
private void HandleItem(Item item, Area area, IInventory inventory)
{
ItemCacheEntry entity;
if (items.TryGetValue(item.Id, out entity))
{
// Frame Update
entity.LastUpdate = currentFrame;
// Item move
if (entity.Area != area || entity.Inventory != inventory)
{
foreach (var client in clients.ToArray())
client.SendMove(entity.Item, entity.Area, area, entity.Inventory, inventory);
entity.Area = area;
entity.Inventory = inventory;
}
// Updates
if (currentFrame % KEYFRAME == 0)
{
// Großes Update
foreach (var client in clients.ToArray())
client.SendKeyUpdate(item);
}
else if (currentFrame % UPDATEFRAME == 0)
{
// Kleines Update
foreach (var client in clients.ToArray())
client.SendUpdate(item);
}
}
else
{
// Item fehlt -> Insert
items.Add(item.Id, new ItemCacheEntry()
{
Item = item,
Area = area,
Inventory = inventory,
LastUpdate = currentFrame
});
foreach (var client in clients.ToArray())
client.SendInsert(item, area, inventory);
}
}
public abstract void OnUpdate(Area area, GameTime gameTime);
/// <summary>
/// Rendert die Spielelemente der aktuellen Szene
/// </summary>
private void RenderItems(Area area, Point offset, GameTime gameTime)
{
// Items von hinten nach vorne rendern
foreach (var item in area.Items.OrderBy(i => i.Position.Y))
{
// Renderer ermitteln und ggf. neu erzeugen
ItemRenderer renderer;
if (!itemRenderer.TryGetValue(item, out renderer))
{
// ACHTUNG: Hier können potentiell neue Items nachträglich hinzu kommen zu denen die Textur noch fehlt
// Das muss geprüft und ggf nachgeladen werden.
Texture2D texture = GetItemTexture(item.Texture);
if (item is Character)
renderer = new CharacterRenderer(item as Character, Camera, texture, font);
else
renderer = new SimpleItemRenderer(item, Camera, texture, font);
itemRenderer.Add(item, renderer);
}
// Ermitteln, ob Item im Interaktionsbereich ist
bool highlight = false;
if (item is IInteractable && game.Local.Player.InteractableItems.Contains(item as IInteractable) ||
item is IAttackable && game.Local.Player.AttackableItems.Contains(item as IAttackable))
highlight = true;
// Item rendern
renderer.Draw(spriteBatch, offset, gameTime, highlight);
}
// TODO: Nicht mehr verwendete Renderer entfernen
}
/// <summary>
/// Rendert einen Layer der aktuellen Szene
/// </summary>
private void RenderLayer(Area area, Layer layer, Point offset)
{
// TODO: Nur den sichtbaren Bereich rendern
for (int x = 0; x < area.Width; x++)
{
for (int y = 0; y < area.Height; y++)
{
// Prüfen, ob diese Zelle ein Tile enthält
int tileId = layer.Tiles[x, y];
if (tileId == 0)
continue;
// Tile ermitteln
Tile tile = area.Tiles[tileId];
Texture2D texture = GetTileset(tile.Texture);
// Position ermitteln
int offsetX = (int)(x * Camera.Scale) - offset.X;
int offsetY = (int)(y * Camera.Scale) - offset.Y;
// Zelle mit der Standard-Textur (Gras) ausmalen
spriteBatch.Draw(texture, new Rectangle(offsetX, offsetY, (int)Camera.Scale, (int)Camera.Scale), tile.SourceRectangle, Color.White);
}
}
}
public override void Update(GameTime gameTime)
{
// Nur wenn Komponente aktiviert wurde.
if (!Enabled)
return;
// Nur arbeiten, wenn es eine Welt, einen Player und eine aktive Area gibt.
Area area = game.Local.GetCurrentArea();
if (game.Simulation.World == null || game.Local.Player == null || area == null)
return;
if (currentArea != area)
{
// Aktuelle Area wechseln
currentArea = area;
// Initiale Kameraposition (temporär)
Vector2 areaSize = new Vector2(currentArea.Width, currentArea.Height);
Camera.SetFocusExplizit(game.Local.Player.Position, areaSize);
}
// Platziert den Kamerafokus auf den Spieler.
Camera.SetFocus(game.Local.Player.Position);
}
/// <summary>
/// Lädt die angegebene Datei in der Hoffnung um eine Area.
/// </summary>
public static Area LoadFromJson(string file, ref int nextId)
{
FileInfo info = new FileInfo(file);
using (Stream stream = File.OpenRead(file))
{
using (StreamReader sr = new StreamReader(stream))
{
// json Datei auslesen
string json = sr.ReadToEnd();
// Deserialisieren
FileArea result = JsonConvert.DeserializeObject<FileArea>(json);
// Neue Area öffnen und mit den Root-Daten füllen
FileLayer[] tileLayer = result.layers.Where(l => l.type == "tilelayer").ToArray();
FileLayer objectLayer = result.layers.Where(l => l.type == "objectgroup").FirstOrDefault();
Area area = new Area(tileLayer.Length, result.width, result.height);
area.Name = info.Name.Substring(0, info.Name.Length - 5);
// Song auslesen
if (result.properties != null)
area.Song = result.properties.Song;
// Hintergrundfarbe interpretieren
area.Background = new Color(128, 128, 128);
if (!string.IsNullOrEmpty(result.backgroundcolor))
{
// Hexwerte als Farbwert parsen
area.Background = new Color(
Convert.ToInt32(result.backgroundcolor.Substring(1, 2), 16),
Convert.ToInt32(result.backgroundcolor.Substring(3, 2), 16),
Convert.ToInt32(result.backgroundcolor.Substring(5, 2), 16));
}
// Tiles zusammen suchen
for (int i = 0; i < result.tilesets.Length; i++)
{
FileTileset tileset = result.tilesets[i];
int start = tileset.firstgid;
int perRow = tileset.imagewidth / tileset.tilewidth;
int width = tileset.tilewidth;
for (int j = 0; j < tileset.tilecount; j++)
{
int x = j % perRow;
int y = j / perRow;
// Block-Status ermitteln
bool block = false;
if (tileset.tileproperties != null)
{
FileTileProperty property;
if (tileset.tileproperties.TryGetValue(j, out property))
block = property.Block;
}
// Tile erstellen
Tile tile = new Tile()
{
Texture = tileset.image,
SourceRectangle = new Rectangle(x * width, y * width, width, width),
Blocked = block
};
// In die Auflistung aufnehmen
area.Tiles.Add(start + j, tile);
}
}
// TileLayer erstellen
for (int l = 0; l < tileLayer.Length; l++)
{
FileLayer layer = tileLayer[l];
for (int i = 0; i < layer.data.Length; i++)
{
int x = i % area.Width;
int y = i / area.Width;
area.Layers[l].Tiles[x, y] = layer.data[i];
}
}
// Object Layer analysieren
if (objectLayer != null)
{
// Portals - Übertragungspunkte zu anderen Karten
foreach (var portal in objectLayer.objects.Where(o => o.type == "Portal"))
{
Rectangle box = new Rectangle(
portal.x / result.tilewidth,
portal.y / result.tileheight,
portal.width / result.tilewidth,
portal.height / result.tileheight
);
area.Portals.Add(new Portal() { DestinationArea = portal.name, Box = box });
}
// Items (Spielelemente)
foreach (var item in objectLayer.objects.Where(o => o.type == "Item"))
{
Vector2 pos = new Vector2(
(item.x + (item.width / 2f)) / result.tilewidth,
(item.y + (item.height / 2f)) / result.tileheight);
switch (item.name)
{
case "coin": area.Items.Add(new Coin(nextId++) { Position = pos }); break;
case "goldencoin": area.Items.Add(new GoldenCoin(nextId++) { Position = pos }); break;
case "decard": area.Items.Add(new Decard(nextId++) { Position = pos }); break;
case "heidi": area.Items.Add(new Heidi(nextId++) { Position = pos }); break;
case "orc": area.Items.Add(new Orc(nextId++) { Position = pos }); break;
case "trader":
Trader trader = new Trader(nextId++) { Position = pos };
trader.Inventory.Add(new IronSword(nextId++) { });
trader.Inventory.Add(new WoodSword(nextId++) { });
trader.Inventory.Add(new Gloves(nextId++) { });
area.Items.Add(trader);
break;
}
}
// Player (Startpunkte)
foreach (var player in objectLayer.objects.Where(o => o.type == "Player"))
{
Vector2 pos = new Vector2(
(player.x + (player.width / 2)) / result.tilewidth,
(player.y + (player.height / 2)) / result.tileheight);
area.Startpoints.Add(pos);
}
}
return area;
}
}
}
