Joonas Rikkonen
514 lines
18 KiB
C#
514 lines
18 KiB
C#
//using Microsoft.Xna.Framework.Graphics;
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using Barotrauma.Items.Components;
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using FarseerPhysics;
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using FarseerPhysics.Dynamics;
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using FarseerPhysics.Dynamics.Contacts;
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using FarseerPhysics.Dynamics.Joints;
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using Microsoft.Xna.Framework;
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Xml.Linq;
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namespace Barotrauma
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{
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public enum LimbType
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{
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None, LeftHand, RightHand, LeftArm, RightArm,
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LeftLeg, RightLeg, LeftFoot, RightFoot, Head, Torso, Tail, Legs, RightThigh, LeftThigh, Waist
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};
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class LimbJoint : RevoluteJoint
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{
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public bool IsSevered;
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public bool CanBeSevered;
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public readonly Limb LimbA, LimbB;
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public LimbJoint(Limb limbA, Limb limbB, Vector2 anchor1, Vector2 anchor2)
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: base(limbA.body.FarseerBody, limbB.body.FarseerBody, anchor1, anchor2)
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{
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CollideConnected = false;
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MotorEnabled = true;
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MaxMotorTorque = 0.25f;
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LimbA = limbA;
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LimbB = limbB;
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}
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}
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partial class Limb
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{
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private const float LimbDensity = 15;
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private const float LimbAngularDamping = 7;
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//how long it takes for severed limbs to fade out
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private const float SeveredFadeOutTime = 10.0f;
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public readonly Character character;
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//the physics body of the limb
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public PhysicsBody body;
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protected readonly Vector2 stepOffset;
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public Sprite sprite, damagedSprite;
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public bool inWater;
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public FixedMouseJoint pullJoint;
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public readonly LimbType type;
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public readonly bool ignoreCollisions;
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private bool isSevered;
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private float severedFadeOutTimer;
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public Vector2? MouthPos;
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//a timer for delaying when a hitsound/attacksound can be played again
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public float SoundTimer;
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public const float SoundInterval = 0.4f;
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public readonly Attack attack;
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private List<DamageModifier> damageModifiers;
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private Direction dir;
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public float AttackTimer;
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public bool IsSevered
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{
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get { return isSevered; }
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set
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{
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isSevered = value;
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#if CLIENT
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if (isSevered) damage = 100.0f;
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#endif
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}
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}
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public bool DoesFlip { get; private set; }
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public Vector2 WorldPosition
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{
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get { return character.Submarine == null ? Position : Position + character.Submarine.Position; }
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}
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public Vector2 Position
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{
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get { return ConvertUnits.ToDisplayUnits(body.SimPosition); }
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}
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public Vector2 SimPosition
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{
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get { return body.SimPosition; }
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}
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public float Rotation
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{
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get { return body.Rotation; }
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}
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public float Scale { get; private set; }
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//where an animcontroller is trying to pull the limb, only used for debug visualization
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public Vector2 AnimTargetPos { get; private set; }
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public float SteerForce { get; private set; }
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public float Mass
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{
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get { return body.Mass; }
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}
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public bool Disabled { get; set; }
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public Vector2 LinearVelocity
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{
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get { return body.LinearVelocity; }
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}
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public float Dir
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{
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get { return ((dir == Direction.Left) ? -1.0f : 1.0f); }
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set { dir = (value==-1.0f) ? Direction.Left : Direction.Right; }
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}
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public int RefJointIndex { get; private set; }
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public Vector2 StepOffset
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{
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get { return stepOffset; }
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}
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public List<WearableSprite> WearingItems { get; private set; }
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public Limb (Character character, XElement element, float scale = 1.0f)
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{
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this.character = character;
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WearingItems = new List<WearableSprite>();
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dir = Direction.Right;
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DoesFlip = element.GetAttributeBool("flip", false);
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Scale = scale;
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body = new PhysicsBody(element, scale);
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if (element.GetAttributeBool("ignorecollisions", false))
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{
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body.CollisionCategories = Category.None;
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body.CollidesWith = Category.None;
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ignoreCollisions = true;
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}
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else
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{
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//limbs don't collide with each other
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body.CollisionCategories = Physics.CollisionCharacter;
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body.CollidesWith = Physics.CollisionAll & ~Physics.CollisionCharacter & ~Physics.CollisionItem;
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}
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body.UserData = this;
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RefJointIndex = -1;
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Vector2 pullJointPos = Vector2.Zero;
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if (element.Attribute("type") != null)
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{
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try
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{
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type = (LimbType)Enum.Parse(typeof(LimbType), element.Attribute("type").Value, true);
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}
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catch
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{
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type = LimbType.None;
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DebugConsole.ThrowError("Error in "+element+"! \""+element.Attribute("type").Value+"\" is not a valid limb type");
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}
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pullJointPos = element.GetAttributeVector2("pullpos", Vector2.Zero) * scale;
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pullJointPos = ConvertUnits.ToSimUnits(pullJointPos);
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stepOffset = element.GetAttributeVector2("stepoffset", Vector2.Zero) * scale;
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stepOffset = ConvertUnits.ToSimUnits(stepOffset);
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RefJointIndex = element.GetAttributeInt("refjoint", -1);
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}
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else
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{
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type = LimbType.None;
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}
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pullJoint = new FixedMouseJoint(body.FarseerBody, pullJointPos);
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pullJoint.Enabled = false;
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pullJoint.MaxForce = ((type == LimbType.LeftHand || type == LimbType.RightHand) ? 400.0f : 150.0f) * body.Mass;
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GameMain.World.AddJoint(pullJoint);
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SteerForce = element.GetAttributeFloat("steerforce", 0.0f);
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if (element.Attribute("mouthpos") != null)
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{
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MouthPos = ConvertUnits.ToSimUnits(element.GetAttributeVector2("mouthpos", Vector2.Zero));
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}
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body.BodyType = BodyType.Dynamic;
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body.FarseerBody.AngularDamping = LimbAngularDamping;
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damageModifiers = new List<DamageModifier>();
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foreach (XElement subElement in element.Elements())
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{
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switch (subElement.Name.ToString().ToLowerInvariant())
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{
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case "sprite":
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string spritePath = subElement.Attribute("texture").Value;
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string spritePathWithTags = spritePath;
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if (character.Info != null)
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{
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spritePath = spritePath.Replace("[GENDER]", (character.Info.Gender == Gender.Female) ? "f" : "");
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spritePath = spritePath.Replace("[HEADID]", character.Info.HeadSpriteId.ToString());
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if (character.Info.HeadSprite != null && character.Info.SpriteTags.Any())
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{
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string tags = "";
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character.Info.SpriteTags.ForEach(tag => tags += "[" + tag + "]");
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spritePathWithTags = Path.Combine(
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Path.GetDirectoryName(spritePath),
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Path.GetFileNameWithoutExtension(spritePath) + tags + Path.GetExtension(spritePath));
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}
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}
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if (File.Exists(spritePathWithTags))
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{
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sprite = new Sprite(subElement, "", spritePathWithTags);
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}
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else
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{
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sprite = new Sprite(subElement, "", spritePath);
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}
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break;
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case "damagedsprite":
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string damagedSpritePath = subElement.Attribute("texture").Value;
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if (character.Info != null)
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{
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damagedSpritePath = damagedSpritePath.Replace("[GENDER]", (character.Info.Gender == Gender.Female) ? "f" : "");
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damagedSpritePath = damagedSpritePath.Replace("[HEADID]", character.Info.HeadSpriteId.ToString());
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}
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damagedSprite = new Sprite(subElement, "", damagedSpritePath);
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break;
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case "attack":
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attack = new Attack(subElement);
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break;
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case "damagemodifier":
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damageModifiers.Add(new DamageModifier(subElement));
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break;
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}
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}
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InitProjSpecific(element);
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}
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partial void InitProjSpecific(XElement element);
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public void MoveToPos(Vector2 pos, float force, bool pullFromCenter=false)
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{
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Vector2 pullPos = body.SimPosition;
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if (pullJoint != null && !pullFromCenter)
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{
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pullPos = pullJoint.WorldAnchorA;
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}
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AnimTargetPos = pos;
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body.MoveToPos(pos, force, pullPos);
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}
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public AttackResult AddDamage(Vector2 position, DamageType damageType, float amount, float bleedingAmount, bool playSound)
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{
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List<DamageModifier> appliedDamageModifiers = new List<DamageModifier>();
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foreach (DamageModifier damageModifier in damageModifiers)
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{
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if (damageModifier.DamageType == DamageType.None) continue;
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if (damageModifier.DamageType.HasFlag(damageType) && SectorHit(damageModifier.ArmorSector, position))
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{
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appliedDamageModifiers.Add(damageModifier);
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}
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}
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foreach (WearableSprite wearable in WearingItems)
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{
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foreach (DamageModifier damageModifier in wearable.WearableComponent.DamageModifiers)
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{
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if (damageModifier.DamageType == DamageType.None) continue;
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if (damageModifier.DamageType.HasFlag(damageType) && SectorHit(damageModifier.ArmorSector, position))
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{
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appliedDamageModifiers.Add(damageModifier);
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}
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}
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}
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foreach (DamageModifier damageModifier in appliedDamageModifiers)
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{
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amount *= damageModifier.DamageMultiplier;
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bleedingAmount *= damageModifier.BleedingMultiplier;
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}
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AddDamageProjSpecific(position, damageType, amount, bleedingAmount, playSound, appliedDamageModifiers);
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return new AttackResult(amount, bleedingAmount, appliedDamageModifiers);
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}
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partial void AddDamageProjSpecific(Vector2 position, DamageType damageType, float amount, float bleedingAmount, bool playSound, List<DamageModifier> appliedDamageModifiers);
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public bool SectorHit(Vector2 armorSector, Vector2 simPosition)
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{
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if (armorSector == Vector2.Zero) return false;
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float rot = body.Rotation;
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if (Dir == -1) rot -= MathHelper.Pi;
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Vector2 armorLimits = new Vector2(rot - armorSector.X * Dir, rot - armorSector.Y * Dir);
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float mid = (armorLimits.X + armorLimits.Y) / 2.0f;
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float angleDiff = MathUtils.GetShortestAngle(MathUtils.VectorToAngle(simPosition - SimPosition), mid);
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return (Math.Abs(angleDiff) < (armorSector.Y - armorSector.X) / 2.0f);
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}
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public void Update(float deltaTime)
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{
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UpdateProjSpecific(deltaTime);
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if (LinearVelocity.X > 500.0f)
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{
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//DebugConsole.ThrowError("CHARACTER EXPLODED");
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body.ResetDynamics();
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body.SetTransform(character.SimPosition, 0.0f);
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}
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if (inWater)
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{
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body.ApplyWaterForces();
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}
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if (isSevered)
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{
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severedFadeOutTimer += deltaTime;
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if (severedFadeOutTimer > SeveredFadeOutTime)
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{
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body.Enabled = false;
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}
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}
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if (character.IsDead) return;
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SoundTimer -= deltaTime;
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}
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partial void UpdateProjSpecific(float deltaTime);
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public void UpdateAttack(float deltaTime, Vector2 attackPosition, IDamageable damageTarget)
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{
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float dist = ConvertUnits.ToDisplayUnits(Vector2.Distance(SimPosition, attackPosition));
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AttackTimer += deltaTime;
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body.ApplyTorque(Mass * character.AnimController.Dir * attack.Torque);
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bool wasHit = false;
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if (damageTarget != null)
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{
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switch (attack.HitDetectionType)
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{
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case HitDetection.Distance:
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wasHit = dist < attack.DamageRange;
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break;
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case HitDetection.Contact:
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List<Body> targetBodies = new List<Body>();
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if (damageTarget is Character)
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{
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Character targetCharacter = (Character)damageTarget;
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foreach (Limb limb in targetCharacter.AnimController.Limbs)
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{
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if (!limb.IsSevered && limb.body?.FarseerBody != null) targetBodies.Add(limb.body.FarseerBody);
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}
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}
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else if (damageTarget is Structure)
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{
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Structure targetStructure = (Structure)damageTarget;
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if (character.Submarine == null && targetStructure.Submarine != null)
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{
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targetBodies.Add(targetStructure.Submarine.PhysicsBody.FarseerBody);
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}
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else
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{
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targetBodies.AddRange(targetStructure.Bodies);
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}
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}
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else if (damageTarget is Item)
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{
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Item targetItem = damageTarget as Item;
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if (targetItem.body?.FarseerBody != null) targetBodies.Add(targetItem.body.FarseerBody);
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}
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if (targetBodies != null)
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{
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ContactEdge contactEdge = body.FarseerBody.ContactList;
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while (contactEdge != null)
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{
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if (contactEdge.Contact != null &&
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contactEdge.Contact.IsTouching &&
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targetBodies.Any(b => b == contactEdge.Contact.FixtureA?.Body || b == contactEdge.Contact.FixtureB?.Body))
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{
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wasHit = true;
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break;
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}
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contactEdge = contactEdge.Next;
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}
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}
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break;
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}
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}
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if (wasHit)
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{
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if (AttackTimer >= attack.Duration && damageTarget != null)
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{
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attack.DoDamage(character, damageTarget, WorldPosition, 1.0f, (SoundTimer <= 0.0f));
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SoundTimer = SoundInterval;
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}
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}
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Vector2 diff = attackPosition - SimPosition;
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if (diff.LengthSquared() < 0.00001f) return;
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if (attack.ApplyForceOnLimbs != null)
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{
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foreach (int limbIndex in attack.ApplyForceOnLimbs)
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{
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if (limbIndex < 0 || limbIndex >= character.AnimController.Limbs.Length) continue;
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Limb limb = character.AnimController.Limbs[limbIndex];
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Vector2 forcePos = limb.pullJoint == null ? limb.body.SimPosition : limb.pullJoint.WorldAnchorA;
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limb.body.ApplyLinearImpulse(
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limb.Mass * attack.Force * Vector2.Normalize(attackPosition - SimPosition), forcePos);
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}
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}
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else
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{
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Vector2 forcePos = pullJoint == null ? body.SimPosition : pullJoint.WorldAnchorA;
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body.ApplyLinearImpulse(Mass * attack.Force *
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Vector2.Normalize(attackPosition - SimPosition), forcePos);
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}
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}
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public void Remove()
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{
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if (sprite != null)
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{
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sprite.Remove();
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sprite = null;
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}
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if (damagedSprite != null)
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{
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damagedSprite.Remove();
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damagedSprite = null;
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}
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if (body != null)
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{
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body.Remove();
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body = null;
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}
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#if CLIENT
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if (LightSource != null)
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{
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LightSource.Remove();
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}
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#endif
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}
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}
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}
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