Make ShiftExistingBiomes available via API (#40)

* bug fixes

Fixes wrong new_y_min when shift_existing_biomes() shifts a biome below the nether floor,
find_surface_anchorPos() no longer assumes y=0 will be outside the nether.
Nil-reference fixed when a mods tries to register a portal after mods are finished loading, but the portal shape+material was already registered by another mod.

* Make ShiftExistingBiomes available via API

makes the ShiftExistingBiomes function available to other mods via the nether global, since it's not a simple function and biomes would also need to be shifted if another mod wants to add a second nether layer.

* Allow layers to extend the depth of nether effects

Mods can set/lower nether.DEPTH_FLOOR_LAYERS when creating a layer under the nether. This allows multiple layer mods to know where their ceiling should start, and to be included in the effects which only happen in the nether.

* document nether API

More of a tentative interop guide than an API.
Use snake_case for API functions.
This commit is contained in:
Treer
2021-07-18 16:44:37 +10:00
committed by GitHub
parent 54613d673a
commit 52038017f3
8 changed files with 122 additions and 30 deletions

View File

@ -337,7 +337,7 @@ nether.cool_lava = function(pos, node)
-- Evaporate water sitting above lava, if it's in the Nether.
-- (we don't want Nether mod to affect overworld lava mechanics)
if minetest.get_item_group(node_above.name, "water") > 0 and
pos.y < nether.DEPTH_CEILING and pos.y > nether.DEPTH_FLOOR then
pos.y < nether.DEPTH_CEILING and pos.y > nether.DEPTH_FLOOR_LAYERS then
-- cools_lava might be a better group to check for, but perhaps there's
-- something in that group that isn't a liquid and shouldn't be evaporated?
minetest.swap_node(pos_above, {name="air"})
@ -604,7 +604,7 @@ local function fumarole_onTimer(pos, elapsed)
-- Fumaroles in the Nether can catch fire.
-- (if taken to the surface and used as cottage chimneys, they don't catch fire)
local inNether = pos.y <= nether.DEPTH and pos.y >= nether.DEPTH_FLOOR
local inNether = pos.y <= nether.DEPTH and pos.y >= nether.DEPTH_FLOOR_LAYERS
local canCatchFire = inNether and minetest.registered_nodes["fire:permanent_flame"] ~= nil
local smoke_offset = 0
local timeout_factor = 1