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Decoration API: Allow force_placement of simple decorations

This commit is contained in:
paramat 2016-02-27 23:49:53 +00:00
parent 1100a5d614
commit 48a718e715
2 changed files with 7 additions and 3 deletions
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5
doc/lua_api.txt
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@ -3698,11 +3698,12 @@ Definition tables
-- ^ Minimum and maximum `y` positions these decorations can be generated at.
-- ^ This parameter refers to the `y` position of the decoration base, so
-- the actual maximum height would be `height_max + size.Y`.
flags = "liquid_surface",
flags = "liquid_surface, force_placement",
-- ^ Flags for all decoration types.
-- ^ "liquid_surface": Instead of placement on the highest solid surface
-- ^ in a mapchunk column, placement is on the highest liquid surface.
-- ^ Placement is disabled if solid nodes are found above the liquid surface.
-- ^ "force_placement": Nodes other than "air" and "ignore" are replaced by the decoration.
----- Simple-type parameters
decoration = "default:grass",
@ -3746,7 +3747,7 @@ Definition tables
},
-- ^ See 'Schematic specifier' for details.
replacements = {["oldname"] = "convert_to", ...},
flags = "place_center_x, place_center_y, place_center_z, force_placement",
flags = "place_center_x, place_center_y, place_center_z",
-- ^ Flags for schematic decorations. See 'Schematic attributes'.
rotation = "90" -- rotate schematic 90 degrees on placement
-- ^ Rotation can be "0", "90", "180", "270", or "random".

5
src/mg_decoration.cpp
View File

@ -304,13 +304,16 @@ size_t DecoSimple::generate(MMVManip *vm, PcgRandom *pr, v3s16 p)
s16 height = (deco_height_max > 0) ?
pr->range(deco_height, deco_height_max) : deco_height;
bool force_placement = (flags & DECO_FORCE_PLACEMENT);
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);
content_t c = vm->m_data[vi].getContent();
if (c != CONTENT_AIR && c != CONTENT_IGNORE)
if (c != CONTENT_AIR && c != CONTENT_IGNORE &&
!force_placement)
break;
vm->m_data[vi] = MapNode(c_place);