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Refactor decoration-related code 

Split up ModApiMapgen::l_register_decoration()
Define and make use of CONTAINS() and ARRLEN() macros
master
kwolekr 2014-10-29 01:54:11 -04:00
parent 7c6da2f384
commit 1cb6ea6346
7 changed files with 158 additions and 142 deletions
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10
src/clouds.cpp
View File

@ -189,7 +189,7 @@ void Clouds::render()
}
#define GETINDEX(x, z, radius) (((z)+(radius))*(radius)*2 + (x)+(radius))
#define CONTAINS(x, z, radius) \
#define INAREA(x, z, radius) \
((x) >= -(radius) && (x) < (radius) && (z) >= -(radius) && (z) < (radius))
for(s16 zi0=-cloud_radius_i; zi0<cloud_radius_i; zi0++)
@ -247,7 +247,7 @@ void Clouds::render()
v[3].Pos.set( rx, ry,-rz);
break;
case 1: // back
if(CONTAINS(xi, zi-1, cloud_radius_i)){
if(INAREA(xi, zi-1, cloud_radius_i)){
u32 j = GETINDEX(xi, zi-1, cloud_radius_i);
if(grid[j])
continue;
@ -262,7 +262,7 @@ void Clouds::render()
v[3].Pos.set(-rx,-ry,-rz);
break;
case 2: //right
if(CONTAINS(xi+1, zi, cloud_radius_i)){
if(INAREA(xi+1, zi, cloud_radius_i)){
u32 j = GETINDEX(xi+1, zi, cloud_radius_i);
if(grid[j])
continue;
@ -277,7 +277,7 @@ void Clouds::render()
v[3].Pos.set( rx,-ry,-rz);
break;
case 3: // front
if(CONTAINS(xi, zi+1, cloud_radius_i)){
if(INAREA(xi, zi+1, cloud_radius_i)){
u32 j = GETINDEX(xi, zi+1, cloud_radius_i);
if(grid[j])
continue;
@ -292,7 +292,7 @@ void Clouds::render()
v[3].Pos.set( rx,-ry, rz);
break;
case 4: // left
if(CONTAINS(xi-1, zi, cloud_radius_i)){
if(INAREA(xi-1, zi, cloud_radius_i)){
u32 j = GETINDEX(xi-1, zi, cloud_radius_i);
if(grid[j])
continue;

67
src/mapgen.cpp
View File

@ -149,8 +149,9 @@ void OreScatter::generate(ManualMapVoxelManipulator *vm, int seed,
continue;
u32 i = vm->m_area.index(x0 + x1, y0 + y1, z0 + z1);
for (size_t ii = 0; ii < c_wherein.size(); ii++)
if (vm->m_data[i].getContent() == c_wherein[ii])
if (!CONTAINS(c_wherein, vm->m_data[i].getContent()))
continue;
vm->m_data[i] = n_ore;
}
}
@ -187,13 +188,10 @@ void OreSheet::generate(ManualMapVoxelManipulator *vm, int seed,
u32 i = vm->m_area.index(x, y, z);
if (!vm->m_area.contains(i))
continue;
if (!CONTAINS(c_wherein, vm->m_data[i].getContent()))
continue;
for (size_t ii = 0; ii < c_wherein.size(); ii++) {
if (vm->m_data[i].getContent() == c_wherein[ii]) {
vm->m_data[i] = n_ore;
break;
}
}
}
}
}
@ -360,23 +358,23 @@ void Decoration::placeCutoffs(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax)
///////////////////////////////////////////////////////////////////////////////
void DecoSimple::generate(Mapgen *mg, PseudoRandom *pr, s16 max_y, v3s16 p) {
ManualMapVoxelManipulator *vm = mg->vm;
bool DecoSimple::canPlaceDecoration(ManualMapVoxelManipulator *vm, v3s16 p) {
// Don't bother if there aren't any decorations to place
if (c_decos.size() == 0)
return false;
u32 vi = vm->m_area.index(p);
content_t c = vm->m_data[vi].getContent();
size_t idx;
for (idx = 0; idx != c_place_on.size(); idx++) {
if (c == c_place_on[idx])
break;
}
if ((idx != 0) && (idx == c_place_on.size()))
return;
if (nspawnby != -1) {
// Check if the decoration can be placed on this node
if (!CONTAINS(c_place_on, vm->m_data[vi].getContent()))
return false;
// Don't continue if there are no spawnby constraints
if (nspawnby == -1)
return true;
int nneighs = 0;
v3s16 dirs[8] = { // a Moore neighborhood
v3s16 dirs[8] = {
v3s16( 0, 0, 1),
v3s16( 0, 0, -1),
v3s16( 1, 0, 0),
@ -387,26 +385,29 @@ void DecoSimple::generate(Mapgen *mg, PseudoRandom *pr, s16 max_y, v3s16 p) {
v3s16( 1, 0, -1)
};
for (int i = 0; i != 8; i++) {
// Check a Moore neighborhood if there are enough spawnby nodes
for (size_t i = 0; i != ARRLEN(dirs); i++) {
u32 index = vm->m_area.index(p + dirs[i]);
if (!vm->m_area.contains(index))
continue;
content_t c = vm->m_data[index].getContent();
for (size_t j = 0; j != c_spawnby.size(); j++) {
if (c == c_spawnby[j]) {
if (CONTAINS(c_spawnby, vm->m_data[index].getContent()))
nneighs++;
break;
}
}
}
if (nneighs < nspawnby)
return;
return false;
return true;
}
if (c_decos.size() == 0)
void DecoSimple::generate(Mapgen *mg, PseudoRandom *pr, s16 max_y, v3s16 p) {
ManualMapVoxelManipulator *vm = mg->vm;
if (!canPlaceDecoration(vm, p))
return;
content_t c_place = c_decos[pr->range(0, c_decos.size() - 1)];
s16 height = (deco_height_max > 0) ?
@ -415,6 +416,7 @@ void DecoSimple::generate(Mapgen *mg, PseudoRandom *pr, s16 max_y, v3s16 p) {
height = MYMIN(height, max_y - p.Y);
v3s16 em = vm->m_area.getExtent();
u32 vi = vm->m_area.index(p);
for (int i = 0; i < height; i++) {
vm->m_area.add_y(em, vi, 1);
@ -477,12 +479,7 @@ void DecoSchematic::generate(Mapgen *mg, PseudoRandom *pr, s16 max_y, v3s16 p) {
u32 vi = vm->m_area.index(p);
content_t c = vm->m_data[vi].getContent();
size_t idx;
for (idx = 0; idx != c_place_on.size(); idx++) {
if (c == c_place_on[idx])
break;
}
if ((idx != 0) && (idx == c_place_on.size()))
if (!CONTAINS(c_place_on, c))
return;
Rotation rot = (rotation == ROTATE_RAND) ?

3
src/mapgen.h
View File

@ -207,7 +207,7 @@ Ore *createOre(OreType type);
enum DecorationType {
DECO_SIMPLE = 1,
DECO_SIMPLE,
DECO_SCHEMATIC,
DECO_LSYSTEM
};
@ -262,6 +262,7 @@ public:
~DecoSimple() {}
bool canPlaceDecoration(ManualMapVoxelManipulator *vm, v3s16 p);
virtual void generate(Mapgen *mg, PseudoRandom *pr, s16 max_y, v3s16 p);
virtual int getHeight();
virtual std::string getName();

107
src/script/lua_api/l_mapgen.cpp
View File

@ -354,12 +354,7 @@ int ModApiMapgen::l_register_decoration(lua_State *L)
NodeResolver *resolver = getServer(L)->getNodeDefManager()->getResolver();
enum DecorationType decotype = (DecorationType)getenumfield(L, index,
"deco_type", es_DecorationType, 0);
if (decotype == 0) {
errorstream << "register_decoration: unrecognized "
"decoration placement type";
return 0;
}
"deco_type", es_DecorationType, -1);
Decoration *deco = createDecoration(decotype);
if (!deco) {
@ -398,19 +393,44 @@ int ModApiMapgen::l_register_decoration(lua_State *L)
}
//// Handle decoration type-specific parameters
bool success = false;
switch (decotype) {
case DECO_SIMPLE: {
DecoSimple *dsimple = (DecoSimple *)deco;
case DECO_SIMPLE:
success = regDecoSimple(L, resolver, (DecoSimple *)deco);
break;
case DECO_SCHEMATIC:
success = regDecoSchematic(L, resolver, (DecoSchematic *)deco);
break;
case DECO_LSYSTEM:
break;
}
dsimple->deco_height = getintfield_default(L, index, "height", 1);
dsimple->deco_height_max = getintfield_default(L, index, "height_max", 0);
dsimple->nspawnby = getintfield_default(L, index, "num_spawn_by", -1);
if (!success) {
delete deco;
return 0;
}
if (dsimple->deco_height <= 0) {
emerge->decorations.push_back(deco);
verbosestream << "register_decoration: decoration '" << deco->getName()
<< "' registered" << std::endl;
return 0;
}
bool ModApiMapgen::regDecoSimple(lua_State *L,
NodeResolver *resolver, DecoSimple *deco)
{
int index = 1;
deco->deco_height = getintfield_default(L, index, "height", 1);
deco->deco_height_max = getintfield_default(L, index, "height_max", 0);
deco->nspawnby = getintfield_default(L, index, "num_spawn_by", -1);
if (deco->deco_height <= 0) {
errorstream << "register_decoration: simple decoration height"
" must be greater than 0" << std::endl;
delete dsimple;
return 0;
return false;
}
std::vector<const char *> deco_names;
@ -418,35 +438,35 @@ int ModApiMapgen::l_register_decoration(lua_State *L)
if (deco_names.size() == 0) {
errorstream << "register_decoration: no decoration nodes "
"defined" << std::endl;
delete dsimple;
return 0;
return false;
}
std::vector<const char *> spawnby_names;
getstringlistfield(L, index, "spawn_by", spawnby_names);
if (dsimple->nspawnby != -1 && spawnby_names.size() == 0) {
if (deco->nspawnby != -1 && spawnby_names.size() == 0) {
errorstream << "register_decoration: no spawn_by nodes defined,"
" but num_spawn_by specified" << std::endl;
delete dsimple;
return 0;
return false;
}
for (size_t i = 0; i != deco_names.size(); i++)
resolver->addNodeList(deco_names[i], &dsimple->c_decos);
resolver->addNodeList(deco_names[i], &deco->c_decos);
for (size_t i = 0; i != spawnby_names.size(); i++)
resolver->addNodeList(spawnby_names[i], &dsimple->c_spawnby);
resolver->addNodeList(spawnby_names[i], &deco->c_spawnby);
break;
return true;
}
case DECO_SCHEMATIC: {
DecoSchematic *dschem = (DecoSchematic *)deco;
dschem->flags = 0;
getflagsfield(L, index, "flags", flagdesc_deco_schematic,
&dschem->flags, NULL);
bool ModApiMapgen::regDecoSchematic(lua_State *L,
NodeResolver *resolver, DecoSchematic *deco)
{
int index = 1;
dschem->rotation = (Rotation)getenumfield(L, index,
"rotation", es_Rotation, ROTATE_0);
deco->flags = 0;
getflagsfield(L, index, "flags", flagdesc_deco_schematic, &deco->flags, NULL);
deco->rotation = (Rotation)getenumfield(L, index, "rotation",
es_Rotation, ROTATE_0);
std::map<std::string, std::string> replace_names;
lua_getfield(L, index, "replacements");
@ -455,33 +475,18 @@ int ModApiMapgen::l_register_decoration(lua_State *L)
lua_pop(L, 1);
lua_getfield(L, index, "schematic");
if (!read_schematic(L, -1, dschem, getServer(L))) {
delete dschem;
return 0;
}
if (!read_schematic(L, -1, deco, getServer(L)))
return false;
lua_pop(L, -1);
if (!dschem->filename.empty() &&
!dschem->loadSchematicFile(resolver, replace_names)) {
if (!deco->filename.empty() &&
!deco->loadSchematicFile(resolver, replace_names)) {
errorstream << "register_decoration: failed to load schematic"
" file '" << dschem->filename << "'" << std::endl;
delete dschem;
return 0;
" file '" << deco->filename << "'" << std::endl;
return false;
}
break;
}
case DECO_LSYSTEM: {
//DecoLSystem *decolsystem = (DecoLSystem *)deco;
break;
}
}
emerge->decorations.push_back(deco);
verbosestream << "register_decoration: decoration '" << deco->getName()
<< "' registered" << std::endl;
return 0;
return true;
}
// register_ore({lots of stuff})

9
src/script/lua_api/l_mapgen.h
View File

@ -22,6 +22,10 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "lua_api/l_base.h"
class NodeResolver;
class DecoSimple;
class DecoSchematic;
class ModApiMapgen : public ModApiBase {
private:
// get_mapgen_object(objectname)
@ -53,6 +57,11 @@ private:
// place_schematic(p, schematic, rotation, replacement)
static int l_place_schematic(lua_State *L);
static bool regDecoSimple(lua_State *L,
NodeResolver *resolver, DecoSimple *deco);
static bool regDecoSchematic(lua_State *L,
NodeResolver *resolver, DecoSchematic *deco);
static struct EnumString es_BiomeTerrainType[];
static struct EnumString es_DecorationType[];
static struct EnumString es_MapgenObject[];

4
src/util/numeric.h
View File

@ -25,6 +25,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "../irr_v3d.h"
#include "../irr_aabb3d.h"
#include <list>
#include <algorithm>
// Calculate the borders of a "d-radius" cube
void getFacePositions(std::list<v3s16> &list, u16 d);
@ -139,6 +140,9 @@ inline v3s16 arealim(v3s16 p, s16 d)
return p;
}
#define ARRLEN(x) (sizeof(x) / sizeof((x)[0]))
#define CONTAINS(c, v) (std::find((c).begin(), (c).end(), (v)) != (c).end())
// The naive swap performs better than the xor version
#define SWAP(t, x, y) do { \
t temp = x; \