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Simple decorations: Make 'place_offset_y' usable with simple decorations

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Necessary for placing the base cube of 'plantlike_rooted' drawtype in the
seabed instead of on it.
Useful for placing decorations sunk into, or buried in, the ground.
This commit is contained in:
paramat 2017-10-09 20:13:10 +01:00 • committed by paramat
parent 2cf9014160
commit 9a41a3d0f1
4 changed files with 33 additions and 23 deletions
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10
src/mg_decoration.cpp
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@ -219,6 +219,10 @@ size_t DecoSimple::generate(MMVManip *vm, PcgRandom *pr, v3s16 p)
if (c_decos.empty())
return 0;
// Check for a negative place_offset_y causing placement below the voxelmanip
if (p.Y + 1 + place_offset_y < vm->m_area.MinEdge.Y)
return 0;
if (!canPlaceDecoration(vm, p))
return 0;
@ -234,9 +238,10 @@ size_t DecoSimple::generate(MMVManip *vm, PcgRandom *pr, v3s16 p)
const v3s16 &em = vm->m_area.getExtent();
u32 vi = vm->m_area.index(p);
vm->m_area.add_y(em, vi, place_offset_y);
for (int i = 0; i < height; i++) {
vm->m_area.add_y(em, vi, 1);
content_t c = vm->m_data[vi].getContent();
if (c != CONTENT_AIR && c != CONTENT_IGNORE &&
!force_placement)
@ -251,7 +256,8 @@ size_t DecoSimple::generate(MMVManip *vm, PcgRandom *pr, v3s16 p)
int DecoSimple::getHeight()
{
return (deco_height_max > 0) ? deco_height_max : deco_height;
return ((deco_height_max > 0) ? deco_height_max : deco_height)
+ place_offset_y;
}