public static RayCastResult rayCast(Vector3 startPos, Vector3 dir, RayCastManager rtm, float length, RayCastBlockType mask)
{
DirInfo dirInfo = new DirInfo(dir);
Vector3 startPosInner = startPos;
float hitTime = 0;
float startOffset = 0;
bool bHitBounds = true;//能击中总区域，或者在内部
if (startPos.x >= 0 && startPos.x < rtm.getSizeX() && startPos.y >= 0 && startPos.y < rtm.getSizeY() && startPos.z >= 0 && startPos.z < rtm.getSizeZ())
{
bHitBounds = true;
}
else
{
bHitBounds = Misc.rayHitAABB(startPos, dir, new Vector3(0, 0, 0), rtm.getSize(), ref hitTime);
if (hitTime > 0)
{
startOffset = hitTime;
}
startPosInner = startPos + dir * startOffset - dir * 0.01f;
}
if (bHitBounds)
{
RayCastResult rlt = rayTraceSmall(startPosInner, dirInfo, rtm, Face.FNI_Unknown, length - startOffset, mask);
rlt.hitLength += startOffset;
return(rlt);
}
else
{
return(new RayCastResult(false, 0, 0, 0, Face.FNI_Unknown, 0));
}
}
public RayCastRestult rayCast(Vector3 startPos, Vector3 dir, float length, RayCastBlockType mask)
{
RayCastRestult outResult;
//求局部坐标，左下角为(0,0,0),单位长度为chunkSize
Vector3 localStartPos = startPos - new Vector3(baseX, baseY, baseZ);
RayCastResult rlt = RayTrace.rayCast(localStartPos, dir, this, length, mask);//进行粗糙范围射线追踪
outResult.bHit = rlt.bHit;
if (rlt.hitLength > length)
{
outResult.bHit = false;
}
outResult.hitFaceIndex = (int)rlt.faceIndex;
outResult.hitLength = rlt.hitLength;
return(outResult);
}