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Decoration: Add schematic rotation support

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This commit is contained in:
kwolekr 2013-07-01 18:04:17 -04:00
parent 131eb56f52
commit dd6d1afd8e
5 changed files with 113 additions and 45 deletions
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115
src/mapgen.cpp
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@ -535,28 +535,10 @@ void DecoSchematic::generate(Mapgen *mg, PseudoRandom *pr, s16 max_y, v3s16 p) {
c_place_on != CONTENT_IGNORE)
return;
u32 i = 0;
for (s16 z = 0; z != size.Z; z++)
for (s16 y = 0; y != size.Y; y++) {
vi = vm->m_area.index(p.X, p.Y + y, p.Z + z);
for (s16 x = 0; x != size.X; x++, i++, vi++) {
if (!vm->m_area.contains(vi))
continue;
if (schematic[i].getContent() == CONTENT_IGNORE)
continue;
content_t c = vm->m_data[vi].getContent();
if (c != CONTENT_AIR && c != CONTENT_IGNORE)
continue;
if (schematic[i].param1 && myrand_range(1, 256) > schematic[i].param1)
continue;
vm->m_data[vi] = schematic[i];
vm->m_data[vi].param1 = 0;
}
}
Rotation rot = (rotation == ROTATE_RAND) ?
(Rotation)pr->range(ROTATE_0, ROTATE_270) : rotation;
blitToVManip(p, vm, rot, false);
}
@ -570,32 +552,58 @@ std::string DecoSchematic::getName() {
}
void DecoSchematic::placeStructure(Map *map, v3s16 p) {
assert(schematic != NULL);
ManualMapVoxelManipulator *vm = new ManualMapVoxelManipulator(map);
void DecoSchematic::blitToVManip(v3s16 p, ManualMapVoxelManipulator *vm,
int rot, bool force_placement) {
int xstride = 1;
int ystride = size.X;
int zstride = size.X * size.Y;
if (flags & DECO_PLACE_CENTER_X)
p.X -= (size.X + 1) / 2;
if (flags & DECO_PLACE_CENTER_Y)
p.Y -= (size.Y + 1) / 2;
if (flags & DECO_PLACE_CENTER_Z)
p.Z -= (size.Z + 1) / 2;
v3s16 bp1 = getNodeBlockPos(p);
v3s16 bp2 = getNodeBlockPos(p + size - v3s16(1,1,1));
vm->initialEmerge(bp1, bp2);
s16 sx = size.X;
s16 sy = size.Y;
s16 sz = size.Z;
u32 i = 0;
for (s16 z = 0; z != size.Z; z++)
for (s16 y = 0; y != size.Y; y++) {
u32 vi = vm->m_area.index(p.X, p.Y + y, p.Z + z);
for (s16 x = 0; x != size.X; x++, i++, vi++) {
int i_start, i_step_x, i_step_z;
switch (rot) {
case ROTATE_90:
i_start = sx - 1;
i_step_x = zstride;
i_step_z = -xstride;
SWAP(s16, sx, sz);
break;
case ROTATE_180:
i_start = zstride * (sz - 1) + sx - 1;
i_step_x = -xstride;
i_step_z = -zstride;
break;
case ROTATE_270:
i_start = zstride * (sz - 1);
i_step_x = -zstride;
i_step_z = xstride;
SWAP(s16, sx, sz);
break;
default:
i_start = 0;
i_step_x = xstride;
i_step_z = zstride;
}
for (s16 z = 0; z != sz; z++)
for (s16 y = 0; y != sy; y++) {
u32 i = z * i_step_z + y * ystride + i_start;
for (s16 x = 0; x != sx; x++, i += i_step_x) {
u32 vi = vm->m_area.index(p.X + x, p.Y + y, p.Z + z);
if (!vm->m_area.contains(vi))
continue;
if (schematic[i].getContent() == CONTENT_IGNORE)
continue;
if (!force_placement) {
content_t c = vm->m_data[vi].getContent();
if (c != CONTENT_AIR && c != CONTENT_IGNORE)
continue;
}
if (schematic[i].param1 && myrand_range(1, 256) > schematic[i].param1)
continue;
@ -603,6 +611,31 @@ void DecoSchematic::placeStructure(Map *map, v3s16 p) {
vm->m_data[vi].param1 = 0;
}
}
}
void DecoSchematic::placeStructure(Map *map, v3s16 p) {
assert(schematic != NULL);
ManualMapVoxelManipulator *vm = new ManualMapVoxelManipulator(map);
Rotation rot = (rotation == ROTATE_RAND) ?
(Rotation)myrand_range(ROTATE_0, ROTATE_270) : rotation;
v3s16 s = (rot == ROTATE_90 || rot == ROTATE_270) ?
v3s16(size.Z, size.Y, size.X) : size;
if (flags & DECO_PLACE_CENTER_X)
p.X -= (s.X + 1) / 2;
if (flags & DECO_PLACE_CENTER_Y)
p.Y -= (s.Y + 1) / 2;
if (flags & DECO_PLACE_CENTER_Z)
p.Z -= (s.Z + 1) / 2;
v3s16 bp1 = getNodeBlockPos(p);
v3s16 bp2 = getNodeBlockPos(p + s - v3s16(1,1,1));
vm->initialEmerge(bp1, bp2);
blitToVManip(p, vm, rot, true);
std::map<v3s16, MapBlock *> lighting_modified_blocks;
std::map<v3s16, MapBlock *> modified_blocks;