Fabian
a3dc7b3f48
hondacrx: - Initial commit: Switch to .Net Core 2.0 - Fix build and removed not needed files Fabi: - Updated solution platforms. - Changed folder structure. - Change library target framework to netstandard2.0. - Updated solution platforms again... - Removed windows specific kernel32 function usage (Ctrl-C handler).
406 lines
13 KiB
C#
406 lines
13 KiB
C#
/*
|
|
* Copyright (C) 2012-2017 CypherCore <http://github.com/CypherCore>
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
using Framework.Constants;
|
|
using Framework.GameMath;
|
|
using System;
|
|
using System.Collections.Generic;
|
|
using System.IO;
|
|
|
|
namespace Game.Collision
|
|
{
|
|
public struct MeshTriangle
|
|
{
|
|
public MeshTriangle(uint na, uint nb, uint nc)
|
|
{
|
|
idx0 = na;
|
|
idx1 = nb;
|
|
idx2 = nc;
|
|
}
|
|
|
|
public uint idx0;
|
|
public uint idx1;
|
|
public uint idx2;
|
|
}
|
|
|
|
public class WmoLiquid
|
|
{
|
|
public WmoLiquid() { }
|
|
public WmoLiquid(uint width, uint height, Vector3 corner, uint type)
|
|
{
|
|
iTilesX = width;
|
|
iTilesY = height;
|
|
iCorner = corner;
|
|
iType = type;
|
|
|
|
iHeight = new float[(width + 1) * (height + 1)];
|
|
iFlags = new byte[width * height];
|
|
}
|
|
public WmoLiquid(WmoLiquid other)
|
|
{
|
|
if (this == other)
|
|
return;
|
|
|
|
iTilesX = other.iTilesX;
|
|
iTilesY = other.iTilesY;
|
|
iCorner = other.iCorner;
|
|
iType = other.iType;
|
|
if (other.iHeight != null)
|
|
{
|
|
iHeight = new float[(iTilesX + 1) * (iTilesY + 1)];
|
|
Buffer.BlockCopy(other.iHeight, 0, iHeight, 0, (int)((iTilesX + 1) * (iTilesY + 1)));
|
|
}
|
|
else
|
|
iHeight = null;
|
|
if (other.iFlags != null)
|
|
{
|
|
iFlags = new byte[iTilesX * iTilesY];
|
|
Buffer.BlockCopy(other.iFlags, 0, iFlags, 0, (int)(iTilesX * iTilesY));
|
|
}
|
|
else
|
|
iFlags = null;
|
|
}
|
|
|
|
public bool GetLiquidHeight(Vector3 pos, out float liqHeight)
|
|
{
|
|
liqHeight = 0f;
|
|
float tx_f = (pos.X - iCorner.X) / MapConst.LiquidTileSize;
|
|
uint tx = (uint)tx_f;
|
|
if (tx_f < 0.0f || tx >= iTilesX)
|
|
return false;
|
|
float ty_f = (pos.Y - iCorner.Y) / MapConst.LiquidTileSize;
|
|
uint ty = (uint)ty_f;
|
|
if (ty_f < 0.0f || ty >= iTilesY)
|
|
return false;
|
|
|
|
// check if tile shall be used for liquid level
|
|
// checking for 0x08 *might* be enough, but disabled tiles always are 0x?F:
|
|
if ((iFlags[tx + ty * iTilesX] & 0x0F) == 0x0F)
|
|
return false;
|
|
|
|
// (dx, dy) coordinates inside tile, in [0, 1]^2
|
|
float dx = tx_f - tx;
|
|
float dy = ty_f - ty;
|
|
|
|
uint rowOffset = iTilesX + 1;
|
|
if (dx > dy) // case (a)
|
|
{
|
|
float sx = iHeight[tx + 1 + ty * rowOffset] - iHeight[tx + ty * rowOffset];
|
|
float sy = iHeight[tx + 1 + (ty + 1) * rowOffset] - iHeight[tx + 1 + ty * rowOffset];
|
|
liqHeight = iHeight[tx + ty * rowOffset] + dx * sx + dy * sy;
|
|
}
|
|
else // case (b)
|
|
{
|
|
float sx = iHeight[tx + 1 + (ty + 1) * rowOffset] - iHeight[tx + (ty + 1) * rowOffset];
|
|
float sy = iHeight[tx + (ty + 1) * rowOffset] - iHeight[tx + ty * rowOffset];
|
|
liqHeight = iHeight[tx + ty * rowOffset] + dx * sx + dy * sy;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool writeToFile(BinaryWriter writer)
|
|
{
|
|
writer.Write(iTilesX);
|
|
writer.Write(iTilesY);
|
|
|
|
writer.Write(iCorner.X);
|
|
writer.Write(iCorner.Y);
|
|
writer.Write(iCorner.Z);
|
|
writer.Write(iType);
|
|
|
|
uint size = (iTilesX + 1) * (iTilesY + 1);
|
|
for (var i = 0; i < size; i++)
|
|
writer.Write(iHeight[i]);
|
|
|
|
size = iTilesX * iTilesY;
|
|
for (var i = 0; i < size; i++)
|
|
writer.Write(iFlags[0]);
|
|
|
|
return true;
|
|
}
|
|
|
|
public static WmoLiquid readFromFile(BinaryReader reader)
|
|
{
|
|
WmoLiquid liquid = new WmoLiquid();
|
|
|
|
liquid.iTilesX = reader.ReadUInt32();
|
|
liquid.iTilesY = reader.ReadUInt32();
|
|
liquid.iCorner = reader.ReadStruct<Vector3>();
|
|
liquid.iType = reader.ReadUInt32();
|
|
|
|
uint size = (liquid.iTilesX + 1) * (liquid.iTilesY + 1);
|
|
liquid.iHeight = new float[size];
|
|
for (var i = 0; i < size; i++)
|
|
liquid.iHeight[i] = reader.ReadSingle();
|
|
|
|
size = liquid.iTilesX * liquid.iTilesY;
|
|
liquid.iFlags = new byte[size];
|
|
for (var i = 0; i < size; i++)
|
|
liquid.iFlags[i] = reader.ReadByte();
|
|
|
|
return liquid;
|
|
}
|
|
|
|
public uint GetLiquidType() { return iType; }
|
|
float[] GetHeightStorage() { return iHeight; }
|
|
byte[] GetFlagsStorage() { return iFlags; }
|
|
|
|
uint iTilesX;
|
|
uint iTilesY;
|
|
Vector3 iCorner;
|
|
uint iType;
|
|
float[] iHeight;
|
|
byte[] iFlags;
|
|
}
|
|
|
|
public class GroupModel : IModel
|
|
{
|
|
public GroupModel()
|
|
{
|
|
iLiquid = null;
|
|
}
|
|
public GroupModel(GroupModel other)
|
|
{
|
|
iBound = other.iBound;
|
|
iMogpFlags = other.iMogpFlags;
|
|
iGroupWMOID = other.iGroupWMOID;
|
|
vertices = other.vertices;
|
|
triangles = other.triangles;
|
|
meshTree = other.meshTree;
|
|
iLiquid = null;
|
|
|
|
if (other.iLiquid != null)
|
|
iLiquid = new WmoLiquid(other.iLiquid);
|
|
}
|
|
public GroupModel(uint mogpFlags, uint groupWMOID, AxisAlignedBox bound)
|
|
{
|
|
iBound = bound;
|
|
iMogpFlags = mogpFlags;
|
|
iGroupWMOID = groupWMOID;
|
|
iLiquid = null;
|
|
}
|
|
|
|
void setLiquidData(WmoLiquid liquid)
|
|
{
|
|
iLiquid = liquid;
|
|
liquid = null;
|
|
}
|
|
|
|
public bool readFromFile(BinaryReader reader)
|
|
{
|
|
uint chunkSize = 0;
|
|
uint count = 0;
|
|
triangles.Clear();
|
|
vertices.Clear();
|
|
iLiquid = null;
|
|
|
|
iBound = reader.ReadStruct<AxisAlignedBox>();
|
|
iMogpFlags = reader.ReadUInt32();
|
|
iGroupWMOID = reader.ReadUInt32();
|
|
|
|
// read vertices
|
|
if (reader.ReadStringFromChars(4) != "VERT")
|
|
return false;
|
|
|
|
chunkSize = reader.ReadUInt32();
|
|
count = reader.ReadUInt32();
|
|
if (count == 0)
|
|
return false;
|
|
|
|
for (var i = 0; i < count; ++i)
|
|
vertices.Add(reader.ReadStruct<Vector3>());
|
|
|
|
// read triangle mesh
|
|
if (reader.ReadStringFromChars(4) != "TRIM")
|
|
return false;
|
|
|
|
chunkSize = reader.ReadUInt32();
|
|
count = reader.ReadUInt32();
|
|
|
|
for (var i = 0; i < count; ++i)
|
|
triangles.Add(reader.ReadStruct<MeshTriangle>());
|
|
|
|
// read mesh BIH
|
|
if (reader.ReadStringFromChars(4) != "MBIH")
|
|
return false;
|
|
meshTree.readFromFile(reader);
|
|
|
|
// write liquid data
|
|
if (reader.ReadStringFromChars(4).ToString() != "LIQU")
|
|
return false;
|
|
chunkSize = reader.ReadUInt32();
|
|
if (chunkSize > 0)
|
|
iLiquid = WmoLiquid.readFromFile(reader);
|
|
|
|
return true;
|
|
}
|
|
|
|
public bool IntersectRay(Ray ray, ref float distance, bool stopAtFirstHit)
|
|
{
|
|
if (triangles.Empty())
|
|
return false;
|
|
|
|
GModelRayCallback callback = new GModelRayCallback(triangles, vertices);
|
|
meshTree.intersectRay(ray, callback, ref distance, stopAtFirstHit);
|
|
return callback.hit;
|
|
}
|
|
|
|
public bool IsInsideObject(Vector3 pos, Vector3 down, out float z_dist)
|
|
{
|
|
z_dist = 0f;
|
|
if (triangles.Empty() || !iBound.contains(pos))
|
|
return false;
|
|
GModelRayCallback callback = new GModelRayCallback(triangles, vertices);
|
|
Vector3 rPos = pos - 0.1f * down;
|
|
float dist = float.PositiveInfinity;
|
|
Ray ray = new Ray(rPos, down);
|
|
bool hit = IntersectRay(ray, ref dist, false);
|
|
if (hit)
|
|
z_dist = dist - 0.1f;
|
|
return hit;
|
|
}
|
|
|
|
public bool GetLiquidLevel(Vector3 pos, out float liqHeight)
|
|
{
|
|
liqHeight = 0f;
|
|
if (iLiquid != null)
|
|
return iLiquid.GetLiquidHeight(pos, out liqHeight);
|
|
return false;
|
|
}
|
|
|
|
public uint GetLiquidType()
|
|
{
|
|
if (iLiquid != null)
|
|
return iLiquid.GetLiquidType();
|
|
return 0;
|
|
}
|
|
|
|
public override AxisAlignedBox getBounds() { return iBound; }
|
|
|
|
public uint GetMogpFlags() { return iMogpFlags; }
|
|
|
|
public uint GetWmoID() { return iGroupWMOID; }
|
|
|
|
AxisAlignedBox iBound;
|
|
uint iMogpFlags;
|
|
uint iGroupWMOID;
|
|
List<Vector3> vertices = new List<Vector3>();
|
|
List<MeshTriangle> triangles = new List<MeshTriangle>();
|
|
BIH meshTree = new BIH();
|
|
WmoLiquid iLiquid;
|
|
}
|
|
|
|
public class WorldModel : IModel
|
|
{
|
|
public WorldModel()
|
|
{
|
|
RootWMOID = 0;
|
|
}
|
|
|
|
public bool IntersectRay(Ray ray, ref float distance, bool stopAtFirstHit)
|
|
{
|
|
// small M2 workaround, maybe better make separate class with virtual intersection funcs
|
|
// in any case, there's no need to use a bound tree if we only have one submodel
|
|
if (groupModels.Count == 1)
|
|
return groupModels[0].IntersectRay(ray, ref distance, stopAtFirstHit);
|
|
|
|
WModelRayCallBack isc = new WModelRayCallBack(groupModels);
|
|
groupTree.intersectRay(ray, isc, ref distance, stopAtFirstHit);
|
|
return isc.hit;
|
|
}
|
|
|
|
public bool IntersectPoint(Vector3 p, Vector3 down, out float dist, AreaInfo info)
|
|
{
|
|
dist = 0f;
|
|
if (groupModels.Empty())
|
|
return false;
|
|
|
|
WModelAreaCallback callback = new WModelAreaCallback(groupModels, down);
|
|
groupTree.intersectPoint(p, callback);
|
|
if (callback.hit != null)
|
|
{
|
|
info.rootId = (int)RootWMOID;
|
|
info.groupId = (int)callback.hit.GetWmoID();
|
|
info.flags = callback.hit.GetMogpFlags();
|
|
info.result = true;
|
|
dist = callback.zDist;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
public bool GetLocationInfo(Vector3 p, Vector3 down, out float dist, LocationInfo info)
|
|
{
|
|
dist = 0f;
|
|
if (groupModels.Empty())
|
|
return false;
|
|
|
|
WModelAreaCallback callback = new WModelAreaCallback(groupModels, down);
|
|
groupTree.intersectPoint(p, callback);
|
|
if (callback.hit != null)
|
|
{
|
|
info.hitModel = callback.hit;
|
|
dist = callback.zDist;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
public bool readFile(string filename)
|
|
{
|
|
if (!File.Exists(filename))
|
|
return false;
|
|
using (BinaryReader reader = new BinaryReader(new FileStream(filename, FileMode.Open, FileAccess.Read)))
|
|
{
|
|
uint chunkSize = 0;
|
|
uint count = 0;
|
|
if (reader.ReadStringFromChars(8) != MapConst.VMapMagic)
|
|
return false;
|
|
|
|
if (reader.ReadStringFromChars(4) != "WMOD")
|
|
return false;
|
|
chunkSize = reader.ReadUInt32();
|
|
RootWMOID = reader.ReadUInt32();
|
|
|
|
// read group models
|
|
if (reader.ReadStringFromChars(4) != "GMOD")
|
|
return false;
|
|
|
|
count = reader.ReadUInt32();
|
|
for (var i = 0; i < count; ++i)
|
|
{
|
|
GroupModel group = new GroupModel();
|
|
group.readFromFile(reader);
|
|
groupModels.Add(group);
|
|
}
|
|
|
|
// read group BIH
|
|
if (reader.ReadStringFromChars(4) != "GBIH")
|
|
return false;
|
|
groupTree.readFromFile(reader);
|
|
|
|
|
|
return true;
|
|
}
|
|
}
|
|
|
|
List<GroupModel> groupModels = new List<GroupModel>();
|
|
BIH groupTree = new BIH();
|
|
uint RootWMOID;
|
|
}
|
|
}
|