126 lines
3.6 KiB
C#
126 lines
3.6 KiB
C#
using Microsoft.Xna.Framework;
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using Microsoft.Xna.Framework.Graphics;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Xml.Linq;
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namespace Barotrauma
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{
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class BackgroundSpriteManager
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{
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const int MaxSprites = 100;
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const float checkActiveInterval = 1.0f;
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float checkActiveTimer;
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private List<BackgroundSpritePrefab> prefabs;
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private List<BackgroundSprite> activeSprites;
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public BackgroundSpriteManager(string configPath)
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{
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activeSprites = new List<BackgroundSprite>();
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prefabs = new List<BackgroundSpritePrefab>();
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XDocument doc = ToolBox.TryLoadXml(configPath);
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if (doc == null || doc.Root == null) return;
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foreach (XElement element in doc.Root.Elements())
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{
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prefabs.Add(new BackgroundSpritePrefab(element));
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}
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}
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public void SpawnSprites(int count, Vector2? position = null)
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{
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activeSprites.Clear();
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if (prefabs.Count == 0) return;
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count = Math.Min(count, MaxSprites);
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for (int i = 0; i < count; i++ )
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{
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Vector2 pos = Vector2.Zero;
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if (position == null)
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{
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var wayPoints = WayPoint.WayPointList.FindAll(wp => wp.Submarine==null);
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if (wayPoints.Any())
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{
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WayPoint wp = wayPoints[Rand.Int(wayPoints.Count)];
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pos = new Vector2(wp.Rect.X, wp.Rect.Y);
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pos += Rand.Vector(200.0f);
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}
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else
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{
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pos = Rand.Vector(2000.0f);
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}
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}
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else
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{
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pos = (Vector2)position;
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}
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var prefab = prefabs[Rand.Int(prefabs.Count)];
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int amount = Rand.Range(prefab.SwarmMin, prefab.SwarmMax);
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List<BackgroundSprite> swarmMembers = new List<BackgroundSprite>();
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for (int n = 0; n < amount; n++)
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{
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var newSprite = new BackgroundSprite(prefab, pos);
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activeSprites.Add(newSprite);
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swarmMembers.Add(newSprite);
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}
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if (amount > 0)
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{
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new Swarm(swarmMembers, prefab.SwarmRadius);
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}
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}
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}
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public void ClearSprites()
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{
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activeSprites.Clear();
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}
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public void Update(Camera cam, float deltaTime)
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{
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if (checkActiveTimer<0.0f)
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{
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foreach (BackgroundSprite sprite in activeSprites)
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{
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sprite.Enabled = (Math.Abs(sprite.TransformedPosition.X - cam.WorldViewCenter.X) < 4000.0f &&
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Math.Abs(sprite.TransformedPosition.Y - cam.WorldViewCenter.Y) < 4000.0f);
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}
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checkActiveTimer = checkActiveInterval;
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}
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else
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{
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checkActiveTimer -= deltaTime;
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}
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foreach (BackgroundSprite sprite in activeSprites)
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{
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if (!sprite.Enabled) continue;
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sprite.Update(deltaTime);
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}
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}
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public void Draw(SpriteBatch spriteBatch)
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{
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foreach (BackgroundSprite sprite in activeSprites)
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{
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if (!sprite.Enabled) continue;
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sprite.Draw(spriteBatch);
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}
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}
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}
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}
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