Block World::getBlock(int x,int y,int z) const {
Vec2i chunkLoc = _correctCoords(x,z);
x = (x%Chunk::WIDTH+Chunk::WIDTH)%Chunk::WIDTH;
z = (z%Chunk::WIDTH+Chunk::WIDTH)%Chunk::WIDTH;
if(y < 0 || y >= Chunk::HEIGHT) {
return Block();
}
return _getChunk(chunkLoc[0],chunkLoc[1]).blocks[x][z][y];
}
void World::deleteBlock(int x,int y,int z) {
Vec2i chunkLoc = _correctCoords(x,z);
auto fixedX = (x%Chunk::WIDTH+Chunk::WIDTH)%Chunk::WIDTH,
fixedZ = (z%Chunk::WIDTH+Chunk::WIDTH)%Chunk::WIDTH;
if(y >= 0 && y < Chunk::HEIGHT) {
auto& b = _getChunk(chunkLoc[0],chunkLoc[1]).blocks[fixedX][fixedZ][y];
b.filled = false;
_updateBlock(x,y,z);
}
}
void World::setBlock(int x,int y,int z,const Color3f& c) {
Vec2i chunkLoc = _correctCoords(x,z);
x = (x%Chunk::WIDTH+Chunk::WIDTH)%Chunk::WIDTH;
z = (z%Chunk::WIDTH+Chunk::WIDTH)%Chunk::WIDTH;
if(y >= 0 && y < Chunk::HEIGHT) {
auto& b = _getChunk(chunkLoc[0],chunkLoc[1]).blocks[x][z][y];
b.filled = true;
b.color = c;
_chunksToUpdate.insert(chunkLoc);
}
}
void TerrainGenerator::GenerateChunk(Chunk* chunk)
{
ChunkHeightMap* heightmapChunk = _getChunk(chunk->GetChunkX(),chunk->GetChunkZ());
if (heightmapChunk != NULL)
{
_generateChunk(chunk,heightmapChunk);
}else
{
_generateChunkAndHeightMap(chunk);
}
}
void World::_generateChunk(int chunkX,int chunkZ) {
Chunk& c = _getChunk(chunkX,chunkZ);
chunkX *= Chunk::WIDTH;
chunkZ *= Chunk::WIDTH;
for(int x=0;x<Chunk::WIDTH;++x) {
for(int z=0;z<Chunk::WIDTH;++z) {
int height = SEALEVEL
+16*(perlin.octaveNoise((chunkX+x)/PERLINSCALE,
(chunkZ+z)/PERLINSCALE,
2,2,3));
for(int y=0;y<Chunk::HEIGHT;++y) {
Block& block = c.blocks[x][z][y];
if(y <= height) {
block.filled = true;
block.color = (height-y < DIRTLAYERS) ?
DIRTCOLOR :
ROCKCOLOR;
} else {
block.filled = false;
}
}
}
}
}
void World::_buildChunkVarr(int chunkX,int chunkZ,VertexArray& varr) const {
auto& c = _getChunk(chunkX,chunkZ);
//std::cout << "Building chunk varr" << std::endl;
//int vertCount = varr.size();
for(int x=-1;x<=Chunk::WIDTH;++x) {
for(int z=-1;z<=Chunk::WIDTH;++z) {
for(int y=-1;y<=Chunk::HEIGHT;++y) {
bool validX = (x >= 0 && x < Chunk::WIDTH),
validY = (y >= 0 && y < Chunk::HEIGHT),
validZ = (z >= 0 && z < Chunk::WIDTH);
//if((validX && validY && validZ && c.blocks[x][z][y].filled) ||
// (validY && ((!validX && validZ) || (validX && !validZ)) &&
if(validY && getBlock(chunkX*Chunk::WIDTH+x,
y,
chunkZ*Chunk::WIDTH+z).filled) {
if((x < 0 || z < 0) && y >= SEALEVEL) {
//std::cout << Vec3i{{x,y,z}} << std::endl;
}
continue;
}
float fx = x,fy = y,fz = z;
if(validY && validZ) {
auto normal = Vec3f{{1,0,0}};
if(x > 0 && c.blocks[x-1][z][y].filled) {
auto color = c.blocks[x-1][z][y].color;
varr.push_back({ {{fx,fy, fz}},
color,normal });
varr.push_back({ {{fx,fy+1,fz}},
color,normal });
varr.push_back({ {{fx,fy+1,fz+1}},
color,normal });
varr.push_back({ {{fx,fy, fz+1}},
color,normal });
}
if(x < Chunk::WIDTH-1 && c.blocks[x+1][z][y].filled) {
auto color = c.blocks[x+1][z][y].color;
varr.push_back({ {{fx+1,fy, fz}},
color,-normal });
varr.push_back({ {{fx+1,fy, fz+1}},
color,-normal });
varr.push_back({ {{fx+1,fy+1,fz+1}},
color,-normal });
varr.push_back({ {{fx+1,fy+1,fz}},
color,-normal });
}
}
if(validX && validY) {
auto normal = Vec3f{{0,0,1}};
if(z > 0 && c.blocks[x][z-1][y].filled) {
auto color = c.blocks[x][z-1][y].color;
varr.push_back({ {{fx, fy, fz}},color,normal});
varr.push_back({ {{fx+1,fy, fz}},color,normal});
varr.push_back({ {{fx+1,fy+1,fz}},color,normal});
varr.push_back({ {{fx, fy+1,fz}},color,normal});
}
if(z < Chunk::WIDTH-1 && c.blocks[x][z+1][y].filled) {
auto color = c.blocks[x][z+1][y].color;
varr.push_back({ {{fx, fy, fz+1}},
color,-normal });
varr.push_back({ {{fx, fy+1,fz+1}},
color,-normal });
varr.push_back({ {{fx+1,fy+1,fz+1}},
color,-normal });
varr.push_back({ {{fx+1,fy, fz+1}},
color,-normal });
}
}
if(validX && validZ) {
auto normal = Vec3f{{0,1,0}};
if(y > 0 && c.blocks[x][z][y-1].filled) {
auto color = c.blocks[x][z][y-1].color;
varr.push_back({ {{fx, fy,fz}}, color,normal});
varr.push_back({ {{fx, fy,fz+1}},color,normal});
varr.push_back({ {{fx+1,fy,fz+1}},color,normal});
varr.push_back({ {{fx+1,fy,fz}}, color,normal});
}
if(y < Chunk::HEIGHT-1 && c.blocks[x][z][y+1].filled) {
auto color = c.blocks[x][z][y+1].color;
varr.push_back({ {{fx, fy+1,fz}}, color,-normal});
varr.push_back({ {{fx+1,fy+1,fz}}, color,-normal});
varr.push_back({ {{fx+1,fy+1,fz+1}},color,-normal});
varr.push_back({ {{fx, fy+1,fz+1}},color,-normal});
}
}
}
}
}
//std::cout << varr.size()-vertCount << " verts" << std::endl;
}
