void MapBuilder::buildTile(int mapID, int tileX, int tileY, dtNavMesh* navMesh)
{
MeshData meshData;
// get heightmap data
m_terrainBuilder->loadMap(mapID, tileX, tileY, meshData, m_magic);
// get model data
m_terrainBuilder->loadVMap(mapID, tileY, tileX, meshData);
// if there is no data, give up now
if (!meshData.solidVerts.size() && !meshData.liquidVerts.size())
{ return; }
// remove unused vertices
TerrainBuilder::cleanVertices(meshData.solidVerts, meshData.solidTris);
TerrainBuilder::cleanVertices(meshData.liquidVerts, meshData.liquidTris);
// gather all mesh data for final data check, and bounds calculation
G3D::Array<float> allVerts;
allVerts.append(meshData.liquidVerts);
allVerts.append(meshData.solidVerts);
if (!allVerts.size())
{ return; }
// get bounds of current tile
float bmin[3], bmax[3];
getTileBounds(tileX, tileY, allVerts.getCArray(), allVerts.size() / 3, bmin, bmax);
m_terrainBuilder->loadOffMeshConnections(mapID, tileX, tileY, meshData, m_offMeshFilePath);
printf(" Building map %03u - Tile [%02u,%02u]\n", mapID, tileX, tileY);
buildMoveMapTile(mapID, tileX, tileY, meshData, bmin, bmax, navMesh);
}
void IntermediateValues::generateRealObj(uint32 mapID, uint32 tileX, uint32 tileY, MeshData meshData)
{
char objFileName[255];
sprintf(objFileName, "meshes/map%03u.obj", mapID);
FILE* objFile = fopen(objFileName, "wb");
if (!objFile)
{
char message[1024];
sprintf(message, "Failed to open %s for writing!\n", objFileName);
perror(message);
return;
}
G3D::Array<float> allVerts;
G3D::Array<int> allTris;
allTris.append(meshData.liquidTris);
allVerts.append(meshData.liquidVerts);
TerrainBuilder::copyIndices(allTris, meshData.solidTris, allVerts.size() / 3);
allVerts.append(meshData.solidVerts);
float* verts = allVerts.getCArray();
int* tris = allTris.getCArray();
for (int i = 0; i < allVerts.size() / 3; i++)
fprintf(objFile, "v %f %f %f\n", verts[i*3], verts[i*3 + 1], verts[i*3 + 2]);
for (int i = 0; i < allTris.size() / 3; i++)
fprintf(objFile, "f %i %i %i\n", tris[i*3] + 1, tris[i*3 + 1] + 1, tris[i*3 + 2] + 1);
fclose(objFile);
}
void IntermediateValues::generateObjFile(uint32 mapID, uint32 tileX, uint32 tileY, MeshData meshData)
{
generateRealObj(mapID, tileX, tileY, meshData);
char tileString[25];
sprintf(tileString, "[%02u,%02u]: ", tileY, tileX);
printf("%sWriting debug output... \r", tileString);
char objFileName[255];
sprintf(objFileName, "meshes/%03u.map", mapID);
FILE* objFile = fopen(objFileName, "wb");
if (!objFile)
{
char message[1024];
sprintf(message, "Failed to open %s for writing!\n", objFileName);
perror(message);
return;
}
char b = '\0';
fwrite(&b, sizeof(char), 1, objFile);
fclose(objFile);
sprintf(objFileName, "meshes/%03u%02u%02u.mesh", mapID, tileY, tileX);
objFile = fopen(objFileName, "wb");
if (!objFile)
{
char message[1024];
sprintf(message, "Failed to open %s for writing!\n", objFileName);
perror(message);
return;
}
G3D::Array<float> allVerts;
G3D::Array<int> allTris;
allTris.append(meshData.liquidTris);
allVerts.append(meshData.liquidVerts);
TerrainBuilder::copyIndices(allTris, meshData.solidTris, allVerts.size() / 3);
allVerts.append(meshData.solidVerts);
float* verts = allVerts.getCArray();
int vertCount = allVerts.size() / 3;
int* tris = allTris.getCArray();
int triCount = allTris.size() / 3;
fwrite(&vertCount, sizeof(int), 1, objFile);
fwrite(verts, sizeof(float), vertCount*3, objFile);
fflush(objFile);
fwrite(&triCount, sizeof(int), 1, objFile);
fwrite(tris, sizeof(int), triCount*3, objFile);
fflush(objFile);
fclose(objFile);
}
bool TileBuilder::loadMap(uint32 mapID, uint32 tileX, uint32 tileY, MeshData &meshData, Spot portion)
{
char mapFileName[255];
sprintf(mapFileName, "maps/%03u%02u%02u.map", mapID, tileY, tileX);
FILE* mapFile = fopen(mapFileName, "rb");
if(!mapFile)
return true;
GridMapFileHeader fheader;
fread(&fheader, sizeof(GridMapFileHeader), 1, mapFile);
if(fheader.versionMagic != *((uint32 const*)(MAP_VERSION_MAGIC)))
{
fclose(mapFile);
printf("%s is the wrong version, please extract new .map files\n", mapFileName);
return false;
}
GridMapHeightHeader hheader;
fseek(mapFile, fheader.heightMapOffset, SEEK_SET);
fread(&hheader, sizeof(GridMapHeightHeader), 1, mapFile);
bool haveTerrain = !(hheader.flags & MAP_HEIGHT_NO_HEIGHT);
bool haveLiquid = fheader.liquidMapOffset && !m_skipLiquid;
// no data in this map file
if(!haveTerrain && !haveLiquid)
{
fclose(mapFile);
return true;
}
// data used later
uint16 holes[16][16];
uint8* liquid_type = 0;
G3D::Array<int> ltriangles;
G3D::Array<int> ttriangles;
// terrain data
if(haveTerrain)
{
int i;
float heightMultiplier;
float V9[V9_SIZE_SQ], V8[V8_SIZE_SQ];
if(hheader.flags & MAP_HEIGHT_AS_INT8)
{
uint8 v9[V9_SIZE_SQ];
uint8 v8[V8_SIZE_SQ];
fread(v9, sizeof(uint8), V9_SIZE_SQ, mapFile);
fread(v8, sizeof(uint8), V8_SIZE_SQ, mapFile);
heightMultiplier = (hheader.gridMaxHeight - hheader.gridHeight) / 255;
for(i = 0; i < V9_SIZE_SQ; ++i)
V9[i] = (float)v9[i]*heightMultiplier + hheader.gridHeight;
if(m_hiResHeightMaps)
for(i = 0; i < V8_SIZE_SQ; ++i)
V8[i] = (float)v8[i]*heightMultiplier + hheader.gridHeight;
}
else if(hheader.flags & MAP_HEIGHT_AS_INT16)
{
uint16 v9[V9_SIZE_SQ];
uint16 v8[V8_SIZE_SQ];
fread(v9, sizeof(uint16), V9_SIZE_SQ, mapFile);
fread(v8, sizeof(uint16), V8_SIZE_SQ, mapFile);
heightMultiplier = (hheader.gridMaxHeight - hheader.gridHeight) / 65535;
for(i = 0; i < V9_SIZE_SQ; ++i)
V9[i] = (float)v9[i]*heightMultiplier + hheader.gridHeight;
if(m_hiResHeightMaps)
for(i = 0; i < V8_SIZE_SQ; ++i)
V8[i] = (float)v8[i]*heightMultiplier + hheader.gridHeight;
}
else
{
fread(V9, sizeof(float), V9_SIZE_SQ, mapFile);
if(m_hiResHeightMaps)
fread(V8, sizeof(float), V8_SIZE_SQ, mapFile);
}
// hole data
memset(holes, 0, fheader.holesSize);
fseek(mapFile, fheader.holesOffset, SEEK_SET);
fread(holes, fheader.holesSize, 1, mapFile);
int count = meshData.solidVerts.size() / 3;
float xoffset = (float(tileX)-32)*GRID_SIZE;
float yoffset = (float(tileY)-32)*GRID_SIZE;
float coord[3];
for(i = 0; i < V9_SIZE_SQ; ++i)
{
getHeightCoord(i, GRID_V9, xoffset, yoffset, coord, V9);
meshData.solidVerts.append(coord[0]);
meshData.solidVerts.append(coord[2]);
meshData.solidVerts.append(coord[1]);
}
if(m_hiResHeightMaps)
for(i = 0; i < V8_SIZE_SQ; ++i)
{
getHeightCoord(i, GRID_V8, xoffset, yoffset, coord, V8);
meshData.solidVerts.append(coord[0]);
meshData.solidVerts.append(coord[2]);
meshData.solidVerts.append(coord[1]);
}
int triInc, j, indices[3], loopStart, loopEnd, loopInc;
getLoopVars(portion, loopStart, loopEnd, loopInc);
triInc = m_hiResHeightMaps ? 1 : BOTTOM-TOP;
for(i = loopStart; i < loopEnd; i+=loopInc)
for(j = TOP; j <= BOTTOM; j+=triInc)
{
getHeightTriangle(i, Spot(j), indices);
ttriangles.append(indices[2] + count);
ttriangles.append(indices[1] + count);
ttriangles.append(indices[0] + count);
}
}
// liquid data
if(haveLiquid)
{
do
{
GridMapLiquidHeader lheader;
fseek(mapFile, fheader.liquidMapOffset, SEEK_SET);
fread(&lheader, sizeof(GridMapLiquidHeader), 1, mapFile);
float* liquid_map = 0;
if (!(lheader.flags & MAP_LIQUID_NO_TYPE))
{
liquid_type = new uint8 [16*16];
fread(liquid_type, sizeof(uint8), 16*16, mapFile);
}
if (!(lheader.flags & MAP_LIQUID_NO_HEIGHT))
{
liquid_map = new float [lheader.width*lheader.height];
fread(liquid_map, sizeof(float), lheader.width*lheader.height, mapFile);
}
if(!liquid_type && !liquid_map)
break;
int count = meshData.liquidVerts.size() / 3;
float xoffset = (float(tileX)-32)*GRID_SIZE;
float yoffset = (float(tileY)-32)*GRID_SIZE;
float coord[3];
int row, col;
// generate coordinates
if (!(lheader.flags & MAP_LIQUID_NO_HEIGHT))
{
int j = 0;
for(int i = 0; i < V9_SIZE_SQ; ++i)
{
row = i / V9_SIZE;
col = i % V9_SIZE;
if((row < (lheader.offsetY) || row >= (lheader.offsetY + lheader.height)) ||
(col < (lheader.offsetX) || col >= (lheader.offsetX + lheader.width)))
{
// dummy vert using invalid height
meshData.liquidVerts.append((xoffset+col*GRID_PART_SIZE)*-1, -500.f, (yoffset+row*GRID_PART_SIZE)*-1);
continue;
}
getLiquidCoord(i, j, xoffset, yoffset, coord, liquid_map);
meshData.liquidVerts.append(coord[0]);
meshData.liquidVerts.append(coord[2]);
meshData.liquidVerts.append(coord[1]);
j++;
}
}
else
{
for(int i = 0; i < V9_SIZE_SQ; ++i)
{
row = i / V9_SIZE;
col = i % V9_SIZE;
meshData.liquidVerts.append((xoffset+col*GRID_PART_SIZE)*-1, lheader.liquidLevel, (yoffset+row*GRID_PART_SIZE)*-1);
}
}
delete [] liquid_map;
int indices[3], loopStart, loopEnd, loopInc, triInc;
getLoopVars(portion, loopStart, loopEnd, loopInc);
triInc = BOTTOM-TOP;
// generate triangles
for(int i = loopStart; i < loopEnd; i+=loopInc)
for(int j = TOP; j <= BOTTOM; j+= triInc)
{
getHeightTriangle(i, Spot(j), indices, true);
ltriangles.append(indices[2] + count);
ltriangles.append(indices[1] + count);
ltriangles.append(indices[0] + count);
}
}while(0);
}
fclose(mapFile);
// now that we have gathered the data, we can figure out which parts to keep:
// liquid above ground
// ground above any liquid type
// ground below <1.5 yard of water
int loopStart, loopEnd, loopInc, tTriCount;
bool useTerrain, useLiquid;
float* lverts = meshData.liquidVerts.getCArray();
float* tverts = meshData.solidVerts.getCArray();
int* ltris = ltriangles.getCArray();
int* ttris = ttriangles.getCArray();
getLoopVars(portion, loopStart, loopEnd, loopInc);
tTriCount = m_hiResHeightMaps ? 4 : 2;
if(ltriangles.size() || ttriangles.size())
{
for(int i = loopStart; i < loopEnd; i+=loopInc)
{
for(int j = 0; j < 2; ++j)
{
// default is true, will change to false if needed
useTerrain = true;
useLiquid = true;
uint8 liquidType;
// if there is no liquid, don't use liquid
if(!liquid_type ||
!meshData.liquidVerts.size() ||
!ltriangles.size())
useLiquid = false;
else
{
liquidType = getLiquidType(i, (const uint8 (*)[16])liquid_type);
switch(liquidType)
{
case 0:
// unknown liquid gets no terrain type
liquidType = 0;
break;
case MAP_LIQUID_TYPE_WATER:
case MAP_LIQUID_TYPE_OCEAN:
// merge different types of water
liquidType = NAV_WATER;
break;
case MAP_LIQUID_TYPE_MAGMA:
liquidType = NAV_MAGMA;
break;
case MAP_LIQUID_TYPE_SLIME:
liquidType = NAV_SLIME;
break;
case MAP_LIQUID_TYPE_DARK_WATER:
// players should not be here, so logically neither should creatures
useTerrain = false;
useLiquid = false;
break;
}
}
// if there is no terrain, don't use terrain
if(!ttriangles.size())
useTerrain = false;
// liquid is rendered as quads. If any triangle has invalid height,
// don't render any of the triangles in that quad
// contrib/extractor uses -500.0 for invalid height
if(useLiquid)
if((&lverts[ltris[0]*3])[1] == -500.f ||
(&lverts[ltris[1]*3])[1] == -500.f ||
(&lverts[ltris[2]*3])[1] == -500.f)
{
useLiquid = false;
}
// if there is a hole here, don't use the terrain
if(useTerrain)
useTerrain = !isHole(i, holes);
if(useTerrain && useLiquid)
{
// get the indexes of the corners of the quad
int idx1, idx2, idx3;
if(j == 0)
{
idx1 = 0;
idx2 = 1;
idx3 = tTriCount; // accesses index from next triangle on low res
}
else
{
idx1 = 0;
idx2 = 3*tTriCount/2-2;
idx3 = 3*tTriCount/2-1;
}
if(useTerrain &&
(&lverts[ltris[0]*3])[1] - 1.5f > (&tverts[ttris[idx1]*3])[1] &&
(&lverts[ltris[1]*3])[1] - 1.5f > (&tverts[ttris[idx2]*3])[1] &&
(&lverts[ltris[2]*3])[1] - 1.5f > (&tverts[ttris[idx3]*3])[1])
useTerrain = false; // if the whole terrain triangle is 1.5yds under liquid, don't use it
else if(useLiquid &&
(&lverts[ltris[0]*3])[1] < (&tverts[ttris[idx1]*3])[1] &&
(&lverts[ltris[1]*3])[1] < (&tverts[ttris[idx2]*3])[1] &&
(&lverts[ltris[2]*3])[1] < (&tverts[ttris[idx3]*3])[1])
useLiquid = false; // if the whole liquid triangle is under terrain, don't use it
}
if(useLiquid)
{
meshData.liquidType.append(liquidType);
for(int k = 0; k < 3; ++k)
meshData.liquidTris.append(ltris[k]);
}
if(useTerrain)
for(int k = 0; k < 3*tTriCount/2; ++k)
meshData.solidTris.append(ttris[k]);
// advance to next set of triangles
ltris += 3;
ttris += 3*tTriCount/2;
}
}
}
delete [] liquid_type;
return true;
}