Renamed project folders from Subsurface to Barotrauma
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Regalis
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using Microsoft.Xna.Framework;
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using Barotrauma.Lights;
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using System;
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using System.Collections.Generic;
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using System.Xml.Linq;
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using Barotrauma.Networking;
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using FarseerPhysics;
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namespace Barotrauma
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{
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class Explosion
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{
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private Attack attack;
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private float force;
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public float CameraShake;
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private bool sparks, shockwave, flames, smoke;
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public Explosion(XElement element)
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{
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attack = new Attack(element);
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force = ToolBox.GetAttributeFloat(element, "force", 0.0f);
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sparks = ToolBox.GetAttributeBool(element, "sparks", true);
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shockwave = ToolBox.GetAttributeBool(element, "shockwave", true);
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flames = ToolBox.GetAttributeBool(element, "flames", true);
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smoke = ToolBox.GetAttributeBool(element, "smoke", true);
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CameraShake = ToolBox.GetAttributeFloat(element, "camerashake", attack.Range*0.1f);
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}
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public void Explode(Vector2 worldPosition)
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{
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Hull hull = Hull.FindHull(worldPosition);
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if (shockwave)
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{
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GameMain.ParticleManager.CreateParticle("shockwave", worldPosition,
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Vector2.Zero, 0.0f, hull);
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}
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for (int i = 0; i < attack.Range * 0.1f; i++)
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{
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Vector2 bubblePos = Rand.Vector(attack.Range * 0.5f);
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GameMain.ParticleManager.CreateParticle("bubbles", worldPosition+bubblePos,
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bubblePos, 0.0f, hull);
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if (sparks)
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{
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GameMain.ParticleManager.CreateParticle("spark", worldPosition,
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Rand.Vector(Rand.Range(500.0f, 800.0f)), 0.0f, hull);
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}
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if (flames)
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{
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GameMain.ParticleManager.CreateParticle("explosionfire", ClampParticlePos(worldPosition + Rand.Vector(50f), hull),
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Rand.Vector(Rand.Range(50.0f, 100.0f)), 0.0f, hull);
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}
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if (smoke)
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{
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GameMain.ParticleManager.CreateParticle("smoke", ClampParticlePos(worldPosition + Rand.Vector(50f), hull),
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Rand.Vector(Rand.Range(1.0f, 10.0f)), 0.0f, hull);
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}
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}
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float displayRange = attack.Range;
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if (displayRange < 0.1f) return;
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var light = new LightSource(worldPosition, displayRange, Color.LightYellow, null);
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CoroutineManager.StartCoroutine(DimLight(light));
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float cameraDist = Vector2.Distance(GameMain.GameScreen.Cam.Position, worldPosition)/2.0f;
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GameMain.GameScreen.Cam.Shake = CameraShake * Math.Max((displayRange - cameraDist) / displayRange, 0.0f);
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if (attack.GetStructureDamage(1.0f) > 0.0f)
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{
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RangedStructureDamage(worldPosition, displayRange, attack.GetStructureDamage(1.0f));
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}
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if (force == 0.0f && attack.Stun == 0.0f && attack.GetDamage(1.0f) == 0.0f) return;
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ApplyExplosionForces(worldPosition, attack.Range, force, attack.GetDamage(1.0f), attack.Stun);
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if (flames && GameMain.Client == null)
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{
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foreach (Item item in Item.ItemList)
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{
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if (item.CurrentHull != hull || item.FireProof || item.Condition <= 0.0f) continue;
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if (Vector2.Distance(item.WorldPosition, worldPosition) > attack.Range * 0.1f) continue;
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item.ApplyStatusEffects(ActionType.OnFire, 1.0f);
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if (item.Condition <= 0.0f && GameMain.Server != null)
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{
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GameMain.Server.CreateEntityEvent(item, new object[] { NetEntityEvent.Type.ApplyStatusEffect, ActionType.OnFire });
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}
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}
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}
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}
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private Vector2 ClampParticlePos(Vector2 particlePos, Hull hull)
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{
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if (hull == null) return particlePos;
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return new Vector2(
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MathHelper.Clamp(particlePos.X, hull.WorldRect.X, hull.WorldRect.Right),
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MathHelper.Clamp(particlePos.Y, hull.WorldRect.Y - hull.WorldRect.Height, hull.WorldRect.Y));
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}
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private IEnumerable<object> DimLight(LightSource light)
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{
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float currBrightness = 1.0f;
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float startRange = light.Range;
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while (light.Color.A > 0.0f)
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{
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light.Color = new Color(light.Color.R, light.Color.G, light.Color.B, currBrightness);
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light.Range = startRange * currBrightness;
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currBrightness -= CoroutineManager.DeltaTime * 20.0f;
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yield return CoroutineStatus.Running;
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}
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light.Remove();
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yield return CoroutineStatus.Success;
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}
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public static void ApplyExplosionForces(Vector2 worldPosition, float range, float force, float damage = 0.0f, float stun = 0.0f)
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{
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if (range <= 0.0f) return;
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foreach (Character c in Character.CharacterList)
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{
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Vector2 explosionPos = worldPosition;
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if (c.Submarine != null) explosionPos -= c.Submarine.Position;
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explosionPos = ConvertUnits.ToSimUnits(explosionPos);
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foreach (Limb limb in c.AnimController.Limbs)
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{
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float dist = Vector2.Distance(limb.WorldPosition, worldPosition);
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//calculate distance from the "outer surface" of the physics body
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//doesn't take the rotation of the limb into account, but should be accurate enough for this purpose
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float limbRadius = Math.Max(Math.Max(limb.body.width * 0.5f, limb.body.height * 0.5f), limb.body.radius);
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dist = Math.Max(0.0f, dist - FarseerPhysics.ConvertUnits.ToDisplayUnits(limbRadius));
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if (dist > range) continue;
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float distFactor = 1.0f - dist / range;
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//solid obstacles between the explosion and the limb reduce the effect of the explosion by 90%
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if (Submarine.CheckVisibility(limb.SimPosition, explosionPos) != null) distFactor *= 0.1f;
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c.AddDamage(limb.WorldPosition, DamageType.None,
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damage / c.AnimController.Limbs.Length * distFactor, 0.0f, stun * distFactor, false);
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if (limb.WorldPosition == worldPosition) continue;
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if (force > 0.0f)
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{
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limb.body.ApplyLinearImpulse(Vector2.Normalize(limb.WorldPosition - worldPosition) * distFactor * force);
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}
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}
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}
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}
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/// <summary>
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/// Returns a dictionary where the keys are the structures that took damage and the values are the amount of damage taken
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/// </summary>
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public static Dictionary<Structure,float> RangedStructureDamage(Vector2 worldPosition, float worldRange, float damage)
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{
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List<Structure> structureList = new List<Structure>();
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float dist = 600.0f;
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foreach (MapEntity entity in MapEntity.mapEntityList)
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{
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Structure structure = entity as Structure;
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if (structure == null) continue;
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if (structure.HasBody &&
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!structure.IsPlatform &&
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Vector2.Distance(structure.WorldPosition, worldPosition) < dist * 3.0f)
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{
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structureList.Add(structure);
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}
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}
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Dictionary<Structure, float> damagedStructures = new Dictionary<Structure, float>();
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foreach (Structure structure in structureList)
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{
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for (int i = 0; i < structure.SectionCount; i++)
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{
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float distFactor = 1.0f - (Vector2.Distance(structure.SectionPosition(i, true), worldPosition) / worldRange);
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if (distFactor <= 0.0f) continue;
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structure.AddDamage(i, damage * distFactor);
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if (damagedStructures.ContainsKey(structure))
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{
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damagedStructures[structure] += damage * distFactor;
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}
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else
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{
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damagedStructures.Add(structure, damage * distFactor);
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}
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}
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}
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return damagedStructures;
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}
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}
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}
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