public void setBlock(int x, int y, int z, RayCastBlockType block)
{
if (y >= 0 && y < sizeY)
{
int lx = ((x % sizeX) + sizeX) % sizeX;
int ly = y;
int lz = ((z % sizeZ) + sizeZ) % sizeZ;
blocks[lx, ly, lz] = block;
}
}
public bool testBlock(int x, int y, int z, RayCastBlockType mask)
{
if (y >= 0 && y < sizeY)
{
int lx = ((x % sizeX) + sizeX) % sizeX;
int ly = y;
int lz = ((z % sizeZ) + sizeZ) % sizeZ;
return((((byte)blocks[lx, ly, lz]) & (byte)mask) != 0);
}
return(false);
}
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);
}
public static RayCastResult rayTraceSmall(Vector3 startPos, DirInfo dirInfo, RayCastManager rtm, Face faceIn, float maxLength, RayCastBlockType mask)
{
int X = (int)(startPos.x + dirInfo.stepX * 0.0001f);
int Y = (int)(startPos.y + dirInfo.stepY * 0.0001f);
int Z = (int)(startPos.z + dirInfo.stepZ * 0.0001f);
float tMaxX = (dirInfo.stepX > 0 ? (1 - (startPos.x - X)) : (startPos.x - X)) * dirInfo.tDeltaX;//沿射线走多远才能跳到下一个X格
float tMaxY = (dirInfo.stepY > 0 ? (1 - (startPos.y - Y)) : (startPos.y - Y)) * dirInfo.tDeltaY;
float tMaxZ = (dirInfo.stepZ > 0 ? (1 - (startPos.z - Z)) : (startPos.z - Z)) * dirInfo.tDeltaZ;
int outSizeX = dirInfo.stepX > 0 ? rtm.getSizeX() : -1;
int outSizeY = dirInfo.stepY > 0 ? rtm.getSizeY() : -1;
int outSizeZ = dirInfo.stepZ > 0 ? rtm.getSizeZ() : -1;
while (true)
{
if (tMaxX < tMaxY)
{
if (tMaxX < tMaxZ)
{
X += dirInfo.stepX;
if (X == outSizeX)
{
return(new RayCastResult(false, X, Y, Z, dirInfo.stepX > 0 ? Face.FNI_x0 : Face.FNI_x1, tMaxX));
}
else
{
if (tMaxX > maxLength)
{
return(new RayCastResult(false, X, Y, Z, Face.FNI_OutOfLength, tMaxX));
}
else if (rtm.testBlock(X, Y, Z, mask))
{
return(new RayCastResult(true, X, Y, Z, dirInfo.stepX > 0 ? Face.FNI_x0 : Face.FNI_x1, tMaxX));
}
}
tMaxX += dirInfo.tDeltaX;
}
else
{
Z += dirInfo.stepZ;
if (Z == outSizeZ)
{
return(new RayCastResult(false, X, Y, Z, dirInfo.stepZ > 0 ? Face.FNI_z0 : Face.FNI_z1, tMaxZ));
}
else
{
if (tMaxZ > maxLength)
{
return(new RayCastResult(false, X, Y, Z, Face.FNI_OutOfLength, tMaxZ));
}
else if (rtm.testBlock(X, Y, Z, mask))
{
return(new RayCastResult(true, X, Y, Z, dirInfo.stepZ > 0 ? Face.FNI_z0 : Face.FNI_z1, tMaxZ));
}
}
tMaxZ += dirInfo.tDeltaZ;
}
}
else
{
if (tMaxY < tMaxZ)
{
Y += dirInfo.stepY;
if (Y == outSizeY)
{
return(new RayCastResult(false, X, Y, Z, dirInfo.stepY > 0 ? Face.FNI_y0 : Face.FNI_y1, tMaxY));
}
else
{
if (tMaxY > maxLength)
{
return(new RayCastResult(false, X, Y, Z, Face.FNI_OutOfLength, tMaxY));
}
else if (rtm.testBlock(X, Y, Z, mask))
{
return(new RayCastResult(true, X, Y, Z, dirInfo.stepY > 0 ? Face.FNI_y0 : Face.FNI_y1, tMaxY));
}
}
tMaxY += dirInfo.tDeltaY;
}
else
{
Z += dirInfo.stepZ;
if (Z == outSizeZ)
{
return(new RayCastResult(false, X, Y, Z, dirInfo.stepZ > 0 ? Face.FNI_z0 : Face.FNI_z1, tMaxZ));
}
else
{
if (tMaxZ > maxLength)
{
return(new RayCastResult(false, X, Y, Z, Face.FNI_OutOfLength, tMaxZ));
}
else if (rtm.testBlock(X, Y, Z, mask))
{
return(new RayCastResult(true, X, Y, Z, dirInfo.stepZ > 0 ? Face.FNI_z0 : Face.FNI_z1, tMaxZ));
}
}
tMaxZ += dirInfo.tDeltaZ;
}
}
}
}
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));
}
}
IEnumerator InitWorld()
{
Block.BlockManager bm = new Block.BlockManager();
for (int i = 0; i < (int)Game.BlockType.Num; i++)
{
for (int f = 0; f < 6; f++)
{
Game.BlockType block = (Game.BlockType)i;
texturePacker.AddTexture(block, f, TextureNameConfig.GetTextureName(block, f));
}
}
texturePacker.Pack();
packedTexture = texturePacker.GetPackedTexture();
BlockTypeFun blockTypeFun = new BlockTypeFun();
blockTypeFun.texturePacker = texturePacker;
//float startTime = Time.realtimeSinceStartup;
int WorldSizeX = 8;
int WorldSizeY = 2;
int WorldSizeZ = 8;
//申请内存
bm.create(WorldSizeX * Const.ChunkSize, WorldSizeY * Const.ChunkSize, WorldSizeZ * Const.ChunkSize, blockTypeFun);
DebugTool.Log("申请内存");
yield return(null);
//
TerrainTool.createTerrain(bm, WorldSizeX, WorldSizeY, WorldSizeZ);
DebugTool.Log("创建地形");
yield return(null);
TerrainTool.createTree(bm, WorldSizeX, WorldSizeY, WorldSizeZ);
DebugTool.Log("创建树");
yield return(null);
List <HouseItem> houseItems = new List <HouseItem>();
TerrainTool.createBuildings(bm, ref houseItems);
DebugTool.Log("创建建筑完成");
yield return(null);
//光线追踪初始化
RayCastManager rtm = new RayCastManager();
rtm.create(bm.SizeX, bm.SizeY, bm.SizeZ);
for (int x = 0; x < rtm.getSizeX(); x++)
{
for (int z = 0; z < rtm.getSizeZ(); z++)
{
for (int y = 0; y < rtm.getSizeY(); y++)
{
short block = bm.getBlock(x, y, z);
RayCastBlockType rlt = 0;
rlt |= blockTypeFun.isCollider(block) ? RayCastBlockType.Collider : RayCastBlockType.Nothing;
rlt |= blockTypeFun.isOpacity(block) ? RayCastBlockType.Opacity : RayCastBlockType.Nothing;
rtm.setBlock(x, y, z, rlt);
}
rtm.updateInSun(x, z);
}
}
//预处理光线
Vector3[][] rays = new Vector3[6][];
{
for (int i = 0; i < 6; i++)
{
rays[i] = TerrainTool.getRandomRays(9, i);
}
}
DebugTool.Log("预处理光线追踪完成");
yield return(null);
rtm.updateAllLight();
DebugTool.Log("扩散光照计算完毕");
yield return(null);
//int[] lightCount = new int[Const.MaxLightIteration + 1];
//for (int i = 0; i < WorldSizeX * Const.ChunkSize; i++) {
// for (int k = 0; k < WorldSizeZ * Const.ChunkSize; k++) {
// for (int j = 0; j < WorldSizeY * Const.ChunkSize; j++) {
// lightCount[rtm.getLight(i, j, k)]++;
// }
// }
//}
//for (int i = 0; i < lightCount.Length; i++) {
// Debug.Log("light (" + i + ") = " + lightCount[i]);
//}
Texture2D lightMap = new Texture2D(256, 256, TextureFormat.RGBAHalf, false);
Color[] colors = new Color[256 * 256];
for (int i = 0; i < 256; i++)
{
for (int j = 0; j < 256; j++)
{
colors[j * 256 + i] = new Color(i / 256.0f, i / 256.0f, i / 256.0f, 1) * 2;
}
}
lightMap.SetPixels(colors);
lightMap.Apply();
LightmapData[] lightmaps = new LightmapData[1];
lightmaps[0] = new LightmapData();
lightmaps[0].lightmapFar = lightMap;
lightmaps[0].lightmapNear = lightMap;
LightmapSettings.lightmaps = lightmaps;
GameObject itemsRoot = new GameObject("items");
for (int i = 0; i < houseItems.Count; i++)
{
HouseItem item = houseItems[i];
string path = HouseItemGenerator.GetItemPrefabPath(item.item);
GameObject prefab = GlobalResources.loadPrefab(path);
if (prefab != null)
{
GameObject inst = GameObject.Instantiate <GameObject>(prefab);
inst.name = houseItems[i].item.ToString();
inst.transform.parent = itemsRoot.transform;
inst.transform.position = houseItems[i].pos + new Vector3(0.5f, 0f, 0.5f);
MeshRenderer renderer = inst.GetComponentInChildren <MeshRenderer>();
renderer.lightmapIndex = 0;
inst.isStatic = true;
float light = rtm.getLight(item.pos.x, item.pos.y, item.pos.z) / (float)Const.MaxLightIteration;
light = Mathf.Lerp(0.0f, 0.6f, light);
renderer.lightmapScaleOffset = new Vector4(0, 0, light, 0f);
//MeshFilter meshFilter = inst.GetComponentInChildren<MeshFilter>();
//Mesh mesh = meshFilter.mesh;
//Color32[] colors = new Color32[mesh.colors.Length];
//byte c = (byte)(rtm.getLight(item.pos.x, item.pos.y, item.pos.z) * 255);
//ArrayTool.SetAll(colors, new Color32(c,c,c,1));
//mesh.colors32 = colors;
}
else
{
int a = 0;
}
}
//初始化AO计算
rma = new RayMarchingAo();
rma.Init(rtm);
//ViewVoxel viewVoxel = GameObject.FindObjectOfType<ViewVoxel>();
//if (viewVoxel) {
// Texture3D voxelTex3D = rma.GetVoxelTexture();
// //OpenGLLibrary.glEnable(OpenGL.GL_TEXTURE_3D);
// //OpenGLLibrary.glBindTexture(OpenGL.GL_TEXTURE_3D, voxelTex3D.GetNativeTexturePtr());
// //byte[] data = new byte[voxelTex3D.width * voxelTex3D.height * voxelTex3D.depth * 4];
// //for (int i = 0; i < data.Length; i++ ){
// // data[i] = 0x56;
// //}
// //OpenGL.TexSubImage3D(OpenGL.GL_TEXTURE_3D, 0, 0, 0, 0, 32, 32, 32, OpenGL.GL_RGBA, OpenGL.GL_UNSIGNED_BYTE, ref data);
// //OpenGL.TextureSubImage3D(voxelTex3D, 0, 0, 0, 0, 1, 1, 1, OpenGL.GL_RED, OpenGL.GL_UNSIGNED_BYTE, ref data);
// viewVoxel.SetVexelTex(voxelTex3D);
//}
//计算光照
Vector3 sunDir = new Vector3(1, -3, 1);
sunDir.Normalize();
{
//TerrainTool.calcLight(bm, rtm, rays, sunDir);
//TerrainTool.calcLight2(bm,32);
}
DebugTool.Log("计算光照完成");
yield return(null);
Material mat = GlobalResources.getBlockMaterial();
mat.mainTexture = texturePacker.GetPackedTexture();
GameObject root = GameObject.Find("Root");
if (root == null)
{
root = new GameObject("Root");
}
Level level = GameObject.FindObjectOfType <Level>();
if (level)
{
level.scene = rtm;
}
//创建网格
for (int i = 0; i < WorldSizeX; i++)
{
for (int k = 0; k < WorldSizeZ; k++)
{
for (int j = 0; j < WorldSizeY; j++)
{
int baseX = i * Const.ChunkSize;
int baseY = j * Const.ChunkSize;
int baseZ = k * Const.ChunkSize;
BlockChunk chunk = new BlockChunk(bm, baseX, baseY, baseZ);
Vector3 chunkPos = new Vector3(i * Const.ChunkSize * Const.BlockSize, j * Const.ChunkSize * Const.BlockSize, k * Const.ChunkSize * Const.BlockSize);
//bool[,,] visibleBlocks = new bool[Const.ChunkSize,Const.ChunkSize,Const.ChunkSize];// = MeshTool.GetVisibleBlocks(chunk, blockTypeFun);
//TerrainTool.calcChunkLight(chunk, i, j, k, rtm, rays, sunDir);
//Mesh mesh = MeshTool.createMesh(chunk, blockTypeFun, 0, 0, 0);
for (int f = 0; f < 6; f++)
{
List <MeshTool.BlockSurface> surface = MeshTool.getChunkSurface(chunk, blockTypeFun, f);
//for (int s = 0; s < surface.Count; s++) {
// visibleBlocks[surface[s].pos.x, surface[s].pos.y, surface[s].pos.z] = true;
//}
Texture2D texSurface = MeshTool.SurfacePointsToTexture(surface, f);
RenderTexture targetAoResult = rma.RenderByCalcShader(texSurface, new Vector3(i, j, k) * Const.ChunkSize, f);
//回读亮度数据
RenderTexture.active = targetAoResult;
Texture2D readback = new Texture2D(targetAoResult.width, targetAoResult.height);
readback.ReadPixels(new Rect(0, 0, targetAoResult.width, targetAoResult.width), 0, 0);
MeshTool.SetRaytraceAo(surface, readback);
MeshTool.SetExtendAo(surface, rtm, f, new VecInt3(i * Const.ChunkSize, j * Const.ChunkSize, k * Const.ChunkSize));
//将可行走区域标记黑色
//if (f == (int)BlockFaceIndex.BFI_y1) {
// for (int s = 0; s < surface.Count; s++) {
// int gx = baseX + surface[s].pos.x;
// int gy = baseY + surface[s].pos.y;
// int gz = baseZ + surface[s].pos.z;
// if (rtm.testBlock(gx, gy, gz, (byte)RayTraceBlockType.Walkable)) {
// for (int v = 0; v < 4; v++) {
// surface[s].raytraceAo[v] *= 0.1f;
// }
// }
// }
//}
Mesh mesh = MeshTool.createMesh2(surface, f, blockTypeFun);
if (mesh != null)
{
GameObject obj = new GameObject("Chunk", typeof(MeshRenderer), typeof(MeshFilter));
obj.isStatic = true;
obj.GetComponent <Renderer>().material = mat;
obj.GetComponent <MeshFilter>().mesh = mesh;
obj.transform.SetParent(root.transform);
obj.transform.position = chunkPos;
}
}
//physics.AddChunk(visibleBlocks, chunkPos);
yield return(null);
}
}
}
StaticBatchingUtility.Combine(root);
StaticBatchingUtility.Combine(itemsRoot);
DebugTool.Log("生成网格");
yield return(null);
}
public RayCastRestult[] batchRayCast(Vector3[] startPos, Vector3[] dir, float[] lenght, RayCastBlockType mask)
{
int num = startPos.Length;
RayCastRestult[] rlts = new RayCastRestult[num];
for (int i = 0; i < num; i++)
{
rlts[i] = rayCast(startPos[i], dir[i], lenght[i], mask);
}
return(rlts);
}
