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use helper function for cleaner code

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This commit is contained in:
kno10 2025-01-09 01:31:51 +01:00
parent f8a6172ca3
commit 36bededf5d
1 changed files with 31 additions and 25 deletions
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56
mods/ENTITIES/mcl_mobs/spawning.lua
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@ -530,6 +530,35 @@ local function get_water_spawn(p)
end
end
--- helper to check a single node p
local function check_room_helper(p, fly_in, fly_in_air, headroom, check_headroom)
local node = get_node(p)
local name = node.name
-- fast-track very common air case:
if fly_in_air and name == "air" then return true end
local n_def = registered_nodes[name]
if not n_def then return false end -- don't spawn in ignore
-- Fast-track common cases:
-- if fly_in "air", also include other non-walkable non-liquid nodes:
if fly_in_air and n_def and not n_def.walkable and n_def.liquidtype == "none" then return true end
-- other things we can fly in
if fly_in[name] then return true end
-- negative checks: need full node
if not check_headroom then return false end
-- solid block always overlaps
if n_def.node_box == "regular" then return false end
-- perform sub-node checks in top layer
local boxes = minetest.get_node_boxes("collision_box", p, node)
for i = 1,#boxes do
-- headroom is measured from the bottom, hence +0.5
if boxes[i][2] + 0.5 < headroom then
return false
end
end
return true
end
local FLY_IN_AIR = { air = true }
local function has_room(self, pos)
local cb = self.spawnbox or self.collisionbox
@ -557,30 +586,8 @@ local function has_room(self, pos)
p.z = z
for x = p1.x,p2.x do
p.x = x
local node = get_node(p)
local nam = node.name
local n_def = registered_nodes[nam]
-- Fast-track common cases:
local continue = nam == "ignore" or (nam == "air" and fly_in_air) or not n_def
-- if fly_in "air", also include other non-walkable non-liquid nodes:
continue = continue or (fly_in_air and n_def and not n_def.walkable and n_def.liquidtype == "none")
-- other things we can fly in
continue = continue or not not fly_in[nam]
if not continue then
if not check_headroom then
return false
end
if n_def.node_box == "regular" then
return false
end
-- perform sub-node checks in top layer
local boxes = minetest.get_node_boxes("collision_box", p, node)
for i = 1,#boxes do
-- headroom is measured from the bottom, hence +0.5
if boxes[i][2] + 0.5 < headroom then
return false
end
end
if not check_room_helper(p, fly_in, fly_in_air, headroom, check_headroom) then
return false
end
end
end
@ -636,7 +643,6 @@ local function spawn_check(pos, spawn_def)
if spawn_def.biomes and not biome_check(spawn_def.biomes, get_biome_name(pos)) then return end
-- check if there is enough room
local mob_def = minetest.registered_entities[spawn_def.name]
-- checked again later! if not has_room(mob_def,pos) then return end
-- additional checks (slime etc.)
if spawn_def.check_position and not spawn_def.check_position(pos) then return end
if spawn_protected and minetest.is_protected(pos, "") then return end