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Add Lua PerlinNoiseMap:get#dMap_flat API

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This commit is contained in:
kwolekr 2013-06-26 21:04:06 -04:00
parent 8aa930f28e
commit 18882a4d26
3 changed files with 56 additions and 1 deletions
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9
doc/lua_api.txt
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@ -1529,6 +1529,15 @@ methods:
- get2d(pos) -> 2d noise value at pos={x=,y=}
- get3d(pos) -> 3d noise value at pos={x=,y=,z=}
PerlinNoiseMap: A fast, bulk perlin noise generator
- Can be created via PerlinNoiseMap(noiseparams, size)
- Also minetest.get_perlin_map(noiseparams, size)
methods:
- get2dMap(pos) -> <size.x>X<size.y> 2d array of 2d noise values starting at pos={x=,y=}
- get3dMap(pos) -> <size.x>X<size.y>X<size.z> 3d array of 3d noise values starting at pos={x=,y=,z=}
- get2dMap_flat(pos) -> Flat <size.x * size.y> element array of 2d noise values starting at pos={x=,y=}
- get3dMap_flat(pos) -> Same as get2dMap_flat, but 3d noise
VoxelManip: An interface to the MapVoxelManipulator for Lua
- Can be created via VoxelManip()
- Also minetest.get_voxel_manip()

45
src/script/lua_api/l_noise.cpp
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@ -159,6 +159,27 @@ int LuaPerlinNoiseMap::l_get2dMap(lua_State *L)
return 1;
}
int LuaPerlinNoiseMap::l_get2dMap_flat(lua_State *L)
{
NO_MAP_LOCK_REQUIRED;
LuaPerlinNoiseMap *o = checkobject(L, 1);
v2f p = read_v2f(L, 2);
Noise *n = o->noise;
n->perlinMap2D(p.X, p.Y);
int maplen = n->sx * n->sy;
lua_newtable(L);
for (int i = 0; i != maplen; i++) {
float noiseval = n->np->offset + n->np->scale * n->result[i];
lua_pushnumber(L, noiseval);
lua_rawseti(L, -2, i + 1);
}
return 1;
}
int LuaPerlinNoiseMap::l_get3dMap(lua_State *L)
{
NO_MAP_LOCK_REQUIRED;
@ -186,6 +207,28 @@ int LuaPerlinNoiseMap::l_get3dMap(lua_State *L)
return 1;
}
int LuaPerlinNoiseMap::l_get3dMap_flat(lua_State *L)
{
NO_MAP_LOCK_REQUIRED;
LuaPerlinNoiseMap *o = checkobject(L, 1);
v3f p = read_v3f(L, 2);
Noise *n = o->noise;
n->perlinMap3D(p.X, p.Y, p.Z);
int maplen = n->sx * n->sy * n->sz;
lua_newtable(L);
for (int i = 0; i != maplen; i++) {
float noiseval = n->np->offset + n->np->scale * n->result[i];
lua_pushnumber(L, noiseval);
lua_rawseti(L, -2, i + 1);
}
return 1;
}
LuaPerlinNoiseMap::LuaPerlinNoiseMap(NoiseParams *np, int seed, v3s16 size) {
noise = new Noise(np, seed, size.X, size.Y, size.Z);
}
@ -254,7 +297,9 @@ void LuaPerlinNoiseMap::Register(lua_State *L)
const char LuaPerlinNoiseMap::className[] = "PerlinNoiseMap";
const luaL_reg LuaPerlinNoiseMap::methods[] = {
luamethod(LuaPerlinNoiseMap, get2dMap),
luamethod(LuaPerlinNoiseMap, get2dMap_flat),
luamethod(LuaPerlinNoiseMap, get3dMap),
luamethod(LuaPerlinNoiseMap, get3dMap_flat),
{0,0}
};

3
src/script/lua_api/l_noise.h
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@ -74,8 +74,9 @@ private:
static int gc_object(lua_State *L);
static int l_get2dMap(lua_State *L);
static int l_get2dMap_flat(lua_State *L);
static int l_get3dMap(lua_State *L);
static int l_get3dMap_flat(lua_State *L);
public:
LuaPerlinNoiseMap(NoiseParams *np, int seed, v3s16 size);