hondacrx
285 lines
10 KiB
C#
285 lines
10 KiB
C#
// Copyright (c) CypherCore <http://github.com/CypherCore> All rights reserved.
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// Licensed under the GNU GENERAL PUBLIC LICENSE. See LICENSE file in the project root for full license information.
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using Framework.Constants;
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using Framework.GameMath;
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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.Numerics;
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namespace Game.Collision
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{
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public class StaticModelList
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{
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public static Dictionary<uint, GameobjectModelData> models = new();
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}
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public abstract class GameObjectModelOwnerBase
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{
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public abstract bool IsSpawned();
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public abstract uint GetDisplayId();
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public abstract byte GetNameSetId();
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public abstract bool IsInPhase(PhaseShift phaseShift);
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public abstract Vector3 GetPosition();
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public abstract Quaternion GetRotation();
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public abstract float GetScale();
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}
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public class GameObjectModel : IModel
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{
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bool Initialize(GameObjectModelOwnerBase modelOwner)
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{
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var modelData = StaticModelList.models.LookupByKey(modelOwner.GetDisplayId());
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if (modelData == null)
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return false;
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AxisAlignedBox mdl_box = new(modelData.bound);
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// ignore models with no bounds
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if (mdl_box == AxisAlignedBox.Zero())
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{
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Log.outError(LogFilter.Server, "GameObject model {0} has zero bounds, loading skipped", modelData.name);
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return false;
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}
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iModel = Global.VMapMgr.AcquireModelInstance(modelData.name);
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if (iModel == null)
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return false;
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iPos = modelOwner.GetPosition();
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iScale = modelOwner.GetScale();
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iInvScale = 1.0f / iScale;
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Matrix4x4 iRotation = modelOwner.GetRotation().ToMatrix();
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iRotation.Inverse(out iInvRot);
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// transform bounding box:
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mdl_box = new AxisAlignedBox(mdl_box.Lo * iScale, mdl_box.Hi * iScale);
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AxisAlignedBox rotated_bounds = new();
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for (int i = 0; i < 8; ++i)
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rotated_bounds.merge(iRotation.Multiply(mdl_box.corner(i)));
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iBound = rotated_bounds + iPos;
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owner = modelOwner;
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isWmo = modelData.isWmo;
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return true;
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}
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public static GameObjectModel Create(GameObjectModelOwnerBase modelOwner)
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{
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GameObjectModel mdl = new();
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if (!mdl.Initialize(modelOwner))
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return null;
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return mdl;
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}
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public override bool IntersectRay(Ray ray, ref float maxDist, bool stopAtFirstHit, PhaseShift phaseShift, ModelIgnoreFlags ignoreFlags)
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{
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if (!IsCollisionEnabled() || !owner.IsSpawned())
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return false;
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if (!owner.IsInPhase(phaseShift))
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return false;
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float time = ray.intersectionTime(iBound);
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if (time == float.PositiveInfinity)
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return false;
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// child bounds are defined in object space:
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Vector3 p = iInvRot.Multiply(ray.Origin - iPos) * iInvScale;
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Ray modRay = new Ray(p, iInvRot.Multiply(ray.Direction));
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float distance = maxDist * iInvScale;
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bool hit = iModel.IntersectRay(modRay, ref distance, stopAtFirstHit, ignoreFlags);
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if (hit)
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{
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distance *= iScale;
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maxDist = distance;
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}
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return hit;
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}
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public override void IntersectPoint(Vector3 point, AreaInfo info, PhaseShift phaseShift)
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{
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if (!IsCollisionEnabled() || !owner.IsSpawned() || !IsMapObject())
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return;
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if (!owner.IsInPhase(phaseShift))
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return;
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if (!iBound.contains(point))
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return;
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// child bounds are defined in object space:
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Vector3 pModel = iInvRot.Multiply(point - iPos) * iInvScale;
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Vector3 zDirModel = iInvRot.Multiply(new Vector3(0.0f, 0.0f, -1.0f));
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float zDist;
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if (iModel.IntersectPoint(pModel, zDirModel, out zDist, info))
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{
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Vector3 modelGround = pModel + zDist * zDirModel;
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float world_Z = (iInvRot.Multiply(modelGround) * iScale + iPos).Z;
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if (info.ground_Z < world_Z)
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{
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info.ground_Z = world_Z;
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info.adtId = owner.GetNameSetId();
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}
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}
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}
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public bool GetLocationInfo(Vector3 point, LocationInfo info, PhaseShift phaseShift)
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{
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if (!IsCollisionEnabled() || !owner.IsSpawned() || !IsMapObject())
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return false;
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if (!owner.IsInPhase(phaseShift))
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return false;
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if (!iBound.contains(point))
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return false;
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// child bounds are defined in object space:
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Vector3 pModel = iInvRot.Multiply(point - iPos) * iInvScale;
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Vector3 zDirModel = iInvRot.Multiply(new Vector3(0.0f, 0.0f, -1.0f));
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float zDist;
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GroupLocationInfo groupInfo = new();
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if (iModel.GetLocationInfo(pModel, zDirModel, out zDist, groupInfo))
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{
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Vector3 modelGround = pModel + zDist * zDirModel;
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float world_Z = (iInvRot.Multiply(modelGround) * iScale + iPos).Z;
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if (info.ground_Z < world_Z)
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{
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info.ground_Z = world_Z;
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return true;
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}
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}
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return false;
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}
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public bool GetLiquidLevel(Vector3 point, LocationInfo info, ref float liqHeight)
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{
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// child bounds are defined in object space:
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Vector3 pModel = iInvRot.Multiply(point - iPos) * iInvScale;
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//Vector3 zDirModel = iInvRot * Vector3(0.f, 0.f, -1.f);
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float zDist;
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if (info.hitModel.GetLiquidLevel(pModel, out zDist))
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{
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// calculate world height (zDist in model coords):
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// assume WMO not tilted (wouldn't make much sense anyway)
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liqHeight = zDist * iScale + iPos.Z;
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return true;
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}
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return false;
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}
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public bool UpdatePosition()
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{
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if (iModel == null)
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return false;
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var it = StaticModelList.models.LookupByKey(owner.GetDisplayId());
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if (it == null)
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return false;
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AxisAlignedBox mdl_box = new(it.bound);
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// ignore models with no bounds
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if (mdl_box == AxisAlignedBox.Zero())
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{
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Log.outError(LogFilter.Server, "GameObject model {0} has zero bounds, loading skipped", it.name);
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return false;
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}
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iPos = owner.GetPosition();
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Matrix4x4 iRotation = owner.GetRotation().ToMatrix();
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iRotation.Inverse(out iInvRot);
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// transform bounding box:
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mdl_box = new AxisAlignedBox(mdl_box.Lo * iScale, mdl_box.Hi * iScale);
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AxisAlignedBox rotated_bounds = new();
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for (int i = 0; i < 8; ++i)
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rotated_bounds.merge(iRotation.Multiply(mdl_box.corner(i)));
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iBound = rotated_bounds + iPos;
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return true;
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}
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public override Vector3 GetPosition() { return iPos; }
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public override AxisAlignedBox GetBounds() { return iBound; }
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public void EnableCollision(bool enable) { _collisionEnabled = enable; }
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bool IsCollisionEnabled() { return _collisionEnabled; }
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public bool IsMapObject() { return isWmo; }
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public byte GetNameSetId() { return owner.GetNameSetId(); }
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public static bool LoadGameObjectModelList()
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{
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uint oldMSTime = Time.GetMSTime();
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var filename = Global.WorldMgr.GetDataPath() + "/vmaps/GameObjectModels.dtree";
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if (!File.Exists(filename))
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{
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Log.outWarn(LogFilter.Server, "Unable to open '{0}' file.", filename);
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return false;
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}
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try
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{
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using BinaryReader reader = new(new FileStream(filename, FileMode.Open, FileAccess.Read));
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string magic = reader.ReadStringFromChars(8);
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if (magic != MapConst.VMapMagic)
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{
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Log.outError(LogFilter.Misc, $"File '{filename}' has wrong header, expected {MapConst.VMapMagic}.");
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return false;
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}
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long length = reader.BaseStream.Length;
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while (true)
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{
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if (reader.BaseStream.Position >= length)
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break;
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uint displayId = reader.ReadUInt32();
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bool isWmo = reader.ReadBoolean();
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int name_length = reader.ReadInt32();
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string name = reader.ReadString(name_length);
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Vector3 v1 = reader.Read<Vector3>();
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Vector3 v2 = reader.Read<Vector3>();
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StaticModelList.models.Add(displayId, new GameobjectModelData(name, v1, v2, isWmo));
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}
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}
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catch (EndOfStreamException ex)
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{
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Log.outException(ex);
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}
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Log.outInfo(LogFilter.ServerLoading, "Loaded {0} GameObject models in {1} ms", StaticModelList.models.Count, Time.GetMSTimeDiffToNow(oldMSTime));
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return true;
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}
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bool _collisionEnabled;
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AxisAlignedBox iBound;
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Matrix4x4 iInvRot;
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Vector3 iPos;
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float iInvScale;
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float iScale;
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WorldModel iModel;
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GameObjectModelOwnerBase owner;
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bool isWmo;
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}
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public class GameobjectModelData
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{
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public GameobjectModelData(string name_, Vector3 lowBound, Vector3 highBound, bool isWmo_)
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{
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bound = new AxisAlignedBox(lowBound, highBound);
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name = name_;
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isWmo = isWmo_;
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}
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public AxisAlignedBox bound;
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public string name;
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public bool isWmo;
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}
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}
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