249 lines
7.8 KiB
C#
249 lines
7.8 KiB
C#
using System;
|
|
using System.Collections.Generic;
|
|
using System.Diagnostics;
|
|
using System.Xml.Linq;
|
|
using FarseerPhysics;
|
|
using FarseerPhysics.Dynamics;
|
|
using FarseerPhysics.Dynamics.Contacts;
|
|
using FarseerPhysics.Dynamics.Joints;
|
|
using Microsoft.Xna.Framework;
|
|
|
|
namespace Barotrauma.Items.Components
|
|
{
|
|
class Projectile : ItemComponent
|
|
{
|
|
private float launchImpulse;
|
|
|
|
private bool doesStick;
|
|
private PrismaticJoint stickJoint;
|
|
private Body stickTarget;
|
|
|
|
Attack attack;
|
|
|
|
public List<Body> ignoredBodies;
|
|
|
|
[HasDefaultValue(10.0f, false)]
|
|
public float LaunchImpulse
|
|
{
|
|
get { return launchImpulse; }
|
|
set { launchImpulse = value; }
|
|
}
|
|
|
|
[HasDefaultValue(false, false)]
|
|
public bool CharacterUsable
|
|
{
|
|
get { return characterUsable; }
|
|
set { characterUsable = value; }
|
|
}
|
|
|
|
[HasDefaultValue(false, false)]
|
|
public bool DoesStick
|
|
{
|
|
get { return doesStick; }
|
|
set { doesStick = value; }
|
|
}
|
|
|
|
public Projectile(Item item, XElement element)
|
|
: base (item, element)
|
|
{
|
|
ignoredBodies = new List<Body>();
|
|
|
|
//launchImpulse = ToolBox.GetAttributeFloat(element, "launchimpulse", 10.0f);
|
|
//characterUsable = ToolBox.GetAttributeBool(element, "characterusable", false);
|
|
|
|
foreach (XElement subElement in element.Elements())
|
|
{
|
|
if (subElement.Name.ToString().ToLower() != "attack") continue;
|
|
attack = new Attack(subElement);
|
|
}
|
|
|
|
//bleedingDamage = ToolBox.GetAttributeFloat(element, "bleedingdamage", 0.0f);
|
|
//bluntDamage = ToolBox.GetAttributeFloat(element, "bluntdamage", 0.0f);
|
|
|
|
//doesStick = ToolBox.GetAttributeBool(element, "doesstick", false);
|
|
}
|
|
|
|
//public override void ConstructionActivate(Construction c, Vector2 modifier)
|
|
//{
|
|
// for (int i = 0; i < item.linkedTo.Count; i++)
|
|
// item.linkedTo[i].RemoveLinked((MapEntity)item);
|
|
// item.linkedTo.Clear();
|
|
|
|
// ApplyStatusEffects(StatusEffect.Type.OnUse, 1.0f, null);
|
|
|
|
// Launch(modifier+Vector2.Normalize(modifier)*launchImpulse);
|
|
|
|
//}
|
|
|
|
public override bool Use(float deltaTime, Character character = null)
|
|
{
|
|
if (character != null && !characterUsable) return false;
|
|
|
|
//ApplyStatusEffects(ActionType.OnUse, 1.0f, character);
|
|
|
|
Launch(new Vector2(
|
|
(float)Math.Cos(item.body.Rotation),
|
|
(float)Math.Sin(item.body.Rotation)) * launchImpulse * item.body.Mass);
|
|
|
|
return true;
|
|
}
|
|
|
|
private void Launch(Vector2 impulse)
|
|
{
|
|
item.body.Enabled = true;
|
|
item.body.ApplyLinearImpulse(impulse);
|
|
|
|
item.body.FarseerBody.OnCollision += OnProjectileCollision;
|
|
item.body.FarseerBody.IsBullet = true;
|
|
|
|
item.body.CollisionCategories = Physics.CollisionProjectile;
|
|
item.body.CollidesWith = Physics.CollisionCharacter | Physics.CollisionWall | Physics.CollisionLevel;
|
|
|
|
item.Drop();
|
|
|
|
if (stickJoint != null && doesStick)
|
|
{
|
|
if (stickTarget != null)
|
|
{
|
|
try
|
|
{
|
|
item.body.FarseerBody.RestoreCollisionWith(stickTarget);
|
|
}
|
|
catch
|
|
{
|
|
#if DEBUG
|
|
DebugConsole.ThrowError("Failed to restore collision with stickTarget", e);
|
|
#endif
|
|
}
|
|
|
|
stickTarget = null;
|
|
}
|
|
GameMain.World.RemoveJoint(stickJoint);
|
|
stickJoint = null;
|
|
}
|
|
}
|
|
|
|
public override void Update(float deltaTime, Camera cam)
|
|
{
|
|
if (stickJoint != null && stickJoint.JointTranslation < 0.01f)
|
|
{
|
|
if (stickTarget!=null)
|
|
{
|
|
try
|
|
{
|
|
item.body.FarseerBody.RestoreCollisionWith(stickTarget);
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
#if DEBUG
|
|
DebugConsole.ThrowError("Failed to restore collision with stickTarget", e);
|
|
#endif
|
|
}
|
|
|
|
stickTarget = null;
|
|
}
|
|
|
|
try
|
|
{
|
|
GameMain.World.RemoveJoint(stickJoint);
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
#if DEBUG
|
|
DebugConsole.ThrowError("Failed to remove stickJoint", e);
|
|
#endif
|
|
}
|
|
|
|
stickJoint = null;
|
|
|
|
IsActive = false;
|
|
}
|
|
}
|
|
|
|
private bool OnProjectileCollision(Fixture f1, Fixture f2, Contact contact)
|
|
{
|
|
if (ignoredBodies.Contains(f2.Body)) return false;
|
|
|
|
AttackResult attackResult = new AttackResult(0.0f, 0.0f);
|
|
if (attack!=null)
|
|
{
|
|
Limb limb;
|
|
Structure structure;
|
|
if ((limb = (f2.Body.UserData as Limb)) != null)
|
|
{
|
|
attackResult = attack.DoDamage(null, limb.character, item.SimPosition, 1.0f);
|
|
}
|
|
else if ((structure = (f2.Body.UserData as Structure)) != null)
|
|
{
|
|
attackResult = attack.DoDamage(null, structure, item.SimPosition, 1.0f);
|
|
}
|
|
}
|
|
|
|
item.body.FarseerBody.OnCollision -= OnProjectileCollision;
|
|
|
|
item.body.FarseerBody.IsBullet = false;
|
|
item.body.CollisionCategories = Physics.CollisionMisc;
|
|
item.body.CollidesWith = Physics.CollisionWall | Physics.CollisionLevel;
|
|
|
|
ignoredBodies.Clear();
|
|
|
|
f2.Body.ApplyLinearImpulse(item.body.LinearVelocity * item.body.Mass);
|
|
|
|
if (attackResult.HitArmor)
|
|
{
|
|
item.body.LinearVelocity *= 0.1f;
|
|
}
|
|
else if (doesStick)
|
|
{
|
|
Vector2 normal = contact.Manifold.LocalNormal;
|
|
Vector2 dir = new Vector2(
|
|
(float)Math.Cos(item.body.Rotation),
|
|
(float)Math.Sin(item.body.Rotation));
|
|
|
|
if (Vector2.Dot(f1.Body.LinearVelocity, normal) < 0.0f) return StickToTarget(f2.Body, dir);
|
|
}
|
|
else
|
|
{
|
|
item.body.LinearVelocity *= 0.5f;
|
|
}
|
|
|
|
var containedItems = item.ContainedItems;
|
|
if (containedItems != null)
|
|
{
|
|
foreach (Item contained in containedItems)
|
|
{
|
|
if (contained.body != null)
|
|
{
|
|
contained.SetTransform(item.SimPosition, contained.body.Rotation);
|
|
}
|
|
contained.Condition = 0.0f;
|
|
}
|
|
}
|
|
|
|
return (f2.CollisionCategories != Physics.CollisionCharacter);
|
|
|
|
//return false;
|
|
}
|
|
|
|
private bool StickToTarget(Body targetBody, Vector2 axis)
|
|
{
|
|
if (stickJoint != null) return false;
|
|
|
|
stickJoint = new PrismaticJoint(targetBody, item.body.FarseerBody, item.body.SimPosition, axis, true);
|
|
stickJoint.MotorEnabled = true;
|
|
stickJoint.MaxMotorForce = 30.0f;
|
|
|
|
stickJoint.LimitEnabled = true;
|
|
stickJoint.UpperLimit = ConvertUnits.ToSimUnits(item.Sprite.size.X*0.7f);
|
|
|
|
item.body.FarseerBody.IgnoreCollisionWith(targetBody);
|
|
stickTarget = targetBody;
|
|
GameMain.World.AddJoint(stickJoint);
|
|
|
|
IsActive = true;
|
|
|
|
return false;
|
|
}
|
|
}
|
|
}
|