First commit
This commit is contained in:
Regalis
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using System;
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using System.Xml.Linq;
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using FarseerPhysics;
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using FarseerPhysics.Dynamics;
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using FarseerPhysics.Dynamics.Joints;
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using Microsoft.Xna.Framework;
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using Microsoft.Xna.Framework.Graphics;
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namespace Subsurface
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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 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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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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private Texture2D bodyShapeTexture;
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private readonly int refJointIndex;
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private readonly float steerForce;
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private readonly bool doesFlip;
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public Sprite sprite;
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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 float maxHealth;
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private float damage;
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private float bleeding;
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public readonly float impactTolerance;
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Sound hitSound;
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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 = 0.2f;
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public readonly Attack attack;
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private Direction dir;
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private Item wearingItem;
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private Sprite wearingItemSprite;
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private Vector2 animTargetPos;
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public Texture2D BodyShapeTexture
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{
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get { return bodyShapeTexture; }
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}
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public bool DoesFlip
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{
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get { return doesFlip; }
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}
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public Vector2 SimPosition
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{
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get { return body.Position; }
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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 Vector2 AnimTargetPos
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{
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get { return animTargetPos; }
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}
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public float SteerForce
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{
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get { return steerForce; }
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}
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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 Sound HitSound
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{
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get { return hitSound; }
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}
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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
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{
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get { return refJointIndex; }
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}
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public float Damage
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{
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get { return damage; }
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set
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{
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damage = Math.Max(value, 0.0f);
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if (damage >=maxHealth) character.Kill();
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}
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}
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public float Bleeding
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{
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get { return bleeding; }
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set { bleeding = MathHelper.Clamp(value, 0.0f, 100.0f); }
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}
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public Item WearingItem
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{
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get { return wearingItem; }
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set { wearingItem = value; }
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}
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public Sprite WearingItemSprite
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{
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get { return wearingItemSprite; }
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set { wearingItemSprite = value; }
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}
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public Limb (Character character, XElement element)
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{
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this.character = character;
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dir = Direction.Right;
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doesFlip = ToolBox.GetAttributeBool(element, "flip", false);
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body = new PhysicsBody(element);
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if (ToolBox.GetAttributeBool(element, "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.CollisionMisc;
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}
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impactTolerance = ToolBox.GetAttributeFloat(element, "impacttolerance", 20.0f);
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body.UserData = this;
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refJointIndex = -1;
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if (element.Attribute("type") != null)
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{
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type = (LimbType)Enum.Parse(typeof(LimbType), element.Attribute("type").Value, true);
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Vector2 jointPos = ToolBox.GetAttributeVector2(element, "pullpos", Vector2.Zero);
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jointPos = ConvertUnits.ToSimUnits(jointPos);
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refJointIndex = ToolBox.GetAttributeInt(element, "refjoint", -1);
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pullJoint = new FixedMouseJoint(body.FarseerBody, jointPos);
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pullJoint.Enabled = false;
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pullJoint.MaxForce = 150.0f * body.Mass;
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Game1.world.AddJoint(pullJoint);
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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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steerForce = ToolBox.GetAttributeFloat(element, "steerforce", 0.0f);
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maxHealth = Math.Max(ToolBox.GetAttributeFloat(element, "health", 100.0f),1.0f);
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body.BodyType = BodyType.Dynamic;
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body.FarseerBody.AngularDamping = LimbAngularDamping;
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foreach (XElement subElement in element.Elements())
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{
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switch (subElement.Name.ToString())
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{
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case "sprite":
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string spritePath = subElement.Attribute("texture").Value;
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if (character.info!=null)
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spritePath = spritePath.Replace("[GENDER]", (character.info.gender == Gender.Female) ? "f" : "");
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sprite = new Sprite(subElement, "", spritePath);
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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 "sound":
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hitSound = Sound.Load(ToolBox.GetAttributeString(subElement, "file", ""));
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break;
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}
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}
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}
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public void Move(Vector2 pos, float amount, bool pullFromCenter=false)
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{
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Vector2 pullPos = body.Position;
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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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Vector2 vel = body.LinearVelocity;
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Vector2 deltaPos = pos - pullPos;
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deltaPos *= amount;
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body.ApplyLinearImpulse((deltaPos - vel * 0.5f) * body.Mass, pullPos);
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}
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public void Update(float deltaTime)
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{
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if (LinearVelocity.X>100.0f)
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{
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DebugConsole.ThrowError("CHARACTER EXPLODED");
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foreach (Limb limb in character.animController.limbs)
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{
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limb.body.ResetDynamics();
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limb.body.SetTransform(body.Position, 0.0f);
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}
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}
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if (inWater)
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{
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//buoyancy
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Vector2 buoyancy = new Vector2(0, Mass * 9.6f);
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//drag
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Vector2 velDir = Vector2.Normalize(LinearVelocity);
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Vector2 line = new Vector2((float)Math.Cos(body.Rotation), (float)Math.Sin(body.Rotation));
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line *= ConvertUnits.ToSimUnits(sprite.size.Y);
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Vector2 normal = new Vector2(-line.Y, line.X);
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normal = Vector2.Normalize(-normal);
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float dragDot = Vector2.Dot(normal, velDir);
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Vector2 dragForce = Vector2.Zero;
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if (dragDot > 0)
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{
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float vel = LinearVelocity.Length();
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float drag = dragDot * vel * vel
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* ConvertUnits.ToSimUnits(sprite.size.Y);
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dragForce = drag * -velDir;
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if (dragForce.Length() > 100.0f) { }
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}
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body.ApplyForce(dragForce + buoyancy);
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body.ApplyTorque(body.AngularVelocity * body.Mass * -0.05f);
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}
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if (character.IsDead) return;
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soundTimer -= deltaTime;
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if (ToolBox.RandomFloat(0.0f, 1000.0f) < Bleeding)
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{
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Game1.particleManager.CreateParticle(SimPosition,
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MathHelper.Pi,
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ToolBox.RandomFloat(0.0f, 0.0f), !inWater ? "blood" : "waterblood");
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}
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}
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public void Draw(SpriteBatch spriteBatch, bool debugDraw)
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{
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Color color = new Color(1.0f, 1.0f - damage / maxHealth, 1.0f - damage / maxHealth);
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body.Dir = Dir;
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body.Draw(spriteBatch, sprite, color);
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if (wearingItem != null)
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{
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SpriteEffects spriteEffect = (dir == Direction.Right) ? SpriteEffects.None : SpriteEffects.FlipHorizontally;
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wearingItemSprite.Draw(spriteBatch,
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new Vector2(body.DrawPosition.X, -body.DrawPosition.Y),
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color,
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-body.DrawRotation,
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1.0f, spriteEffect);
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}
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if (!debugDraw) return;
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if (pullJoint!=null)
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{
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Vector2 pos = ConvertUnits.ToDisplayUnits(pullJoint.WorldAnchorB);
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GUI.DrawRectangle(spriteBatch, new Rectangle((int)pos.X, (int)pos.Y, 5, 5), Color.Red, true);
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}
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if (bodyShapeTexture == null)
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{
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switch (body.bodyShape)
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{
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case PhysicsBody.Shape.Rectangle:
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bodyShapeTexture = GUI.CreateRectangle(
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(int)ConvertUnits.ToDisplayUnits(body.width),
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(int)ConvertUnits.ToDisplayUnits(body.height));
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break;
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case PhysicsBody.Shape.Capsule:
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bodyShapeTexture = GUI.CreateCapsule(
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(int)ConvertUnits.ToDisplayUnits(body.radius),
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(int)ConvertUnits.ToDisplayUnits(body.height));
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break;
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case PhysicsBody.Shape.Circle:
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bodyShapeTexture = GUI.CreateCircle((int)ConvertUnits.ToDisplayUnits(body.radius));
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break;
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}
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}
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spriteBatch.Draw(
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bodyShapeTexture,
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new Vector2(body.DrawPosition.X, -body.DrawPosition.Y),
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null,
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Color.White,
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-body.DrawRotation,
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new Vector2(bodyShapeTexture.Width / 2, bodyShapeTexture.Height / 2), 1.0f, SpriteEffects.None, 0.0f);
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}
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public void Remove()
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{
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sprite.Remove();
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body.Remove();
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if (hitSound!=null) hitSound.Remove();
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}
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}
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}
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