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VoxeLibre/mods/ENTITIES/mobs_mc/slime+magma_cube.lua
codiac 4fcd1ae541 Fix slime spawn crash (#3977) 
Declare global variables before using them!

Fixes #3975

Reviewed-on: https://git.minetest.land/MineClone2/MineClone2/pulls/3977
Reviewed-by: the-real-herowl <the-real-herowl@noreply.git.minetest.land>
Co-authored-by: codiac <codiac@inbox.lv>
Co-committed-by: codiac <codiac@inbox.lv>
2023-10-23 05:32:18 +00:00

557 lines
14 KiB
Lua
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--License for code WTFPL and otherwise stated in readmes
local S = minetest.get_translator("mobs_mc")
local MAPBLOCK_SIZE = 16
local seed = minetest.get_mapgen_setting("seed")
local slime_chunk_match
local x_modifier
local z_modifier
local function split_by_char (inputstr, sep, limit)
if sep == nil then
sep = "%d"
end
local t = {}
local i = 0
for str in string.gmatch(inputstr, "(["..sep.."])") do
i = i --+ 1
table.insert(t, tonumber(str))
if limit and i >= limit then
break
end
end
return t
end
--Seed: "16002933932875202103" == random seed
--Seed: "1807191622654296300" == cheese
--Seed: "1" = 1
local function process_seed (seed)
--minetest.log("seed: " .. seed)
local split_chars = split_by_char(tostring(seed), nil, 10)
slime_chunk_match = split_chars[1]
x_modifier = split_chars[2]
z_modifier = split_chars[3]
--minetest.log("x_modifier: " .. tostring(x_modifier))
--minetest.log("z_modifier: " .. tostring(z_modifier))
--minetest.log("slime_chunk_match: " .. tostring(slime_chunk_match))
end
local processed = process_seed (seed)
local function convert_to_chunk_value (co_ord, modifier)
local converted = math.floor(math.abs(co_ord) / MAPBLOCK_SIZE)
if modifier then
converted = (converted + modifier)
end
converted = converted % 10
--minetest.log("co_ord: " .. co_ord)
--minetest.log("converted: " .. converted)
return converted
end
assert(convert_to_chunk_value(-16) == 1, "Incorrect convert_to_chunk_value result")
assert(convert_to_chunk_value(-15) == 0, "Incorrect convert_to_chunk_value result")
assert(convert_to_chunk_value(-1) == 0, "Incorrect convert_to_chunk_value result")
assert(convert_to_chunk_value(0) == 0, "Incorrect convert_to_chunk_value result")
assert(convert_to_chunk_value(1) == 0, "Incorrect convert_to_chunk_value result")
assert(convert_to_chunk_value(15) == 0, "Incorrect convert_to_chunk_value result")
assert(convert_to_chunk_value(16) == 1, "Incorrect convert_to_chunk_value result")
assert(convert_to_chunk_value(31) == 1, "Incorrect convert_to_chunk_value result")
assert(convert_to_chunk_value(32) == 2, "Incorrect convert_to_chunk_value result")
assert(convert_to_chunk_value(1599) == 9, "Incorrect convert_to_chunk_value result")
assert(convert_to_chunk_value(1600) == 0, "Incorrect convert_to_chunk_value result")
assert(convert_to_chunk_value(0,9) == 9, "Incorrect convert_to_chunk_value result")
assert(convert_to_chunk_value(16,5) == 6, "Incorrect convert_to_chunk_value result")
assert(convert_to_chunk_value(1599,4) == 3, "Incorrect convert_to_chunk_value result")
local function calculate_chunk_value (pos, x_mod, z_mod)
local chunk_val = math.abs(convert_to_chunk_value(pos.x, x_mod) - convert_to_chunk_value(pos.z, z_mod)) % 10
return chunk_val
end
assert(calculate_chunk_value(vector.new(0,0,0)) == 0, "calculate_chunk_value failed")
assert(calculate_chunk_value(vector.new(0,0,0), 1, 1) == 0, "calculate_chunk_value failed")
assert(calculate_chunk_value(vector.new(0,0,0), 2, 1) == 1, "calculate_chunk_value failed")
assert(calculate_chunk_value(vector.new(64,0,16)) == (4-1), "calculate_chunk_value failed")
assert(calculate_chunk_value(vector.new(16,0,64)) == (3), "calculate_chunk_value failed")
assert(calculate_chunk_value(vector.new(-160,0,-160)) == 0, "calculate_chunk_value failed")
local function is_slime_chunk(pos)
if not pos then return end
local chunk_val = calculate_chunk_value (pos, x_modifier, z_modifier)
local slime_chunk = chunk_val == slime_chunk_match
--minetest.log("x: " ..pos.x .. ", z:" .. pos.z)
--minetest.log("seed slime_chunk_match: " .. tostring(slime_chunk_match))
--minetest.log("chunk_val: " .. tostring(chunk_val))
--minetest.log("Is slime chunk: " .. tostring(slime_chunk))
return slime_chunk
end
local check_position = function (pos)
return is_slime_chunk(pos)
end
-- Returns a function that spawns children in a circle around pos.
-- To be used as on_die callback.
-- self: mob reference
-- pos: position of "mother" mob
-- child_mod: Mob to spawn
-- spawn_distance: Spawn distance from "mother" mob
-- eject_speed: Initial speed of child mob away from "mother" mob
local spawn_children_on_die = function(child_mob, spawn_distance, eject_speed)
return function(self, pos)
local posadd, newpos, dir
if not eject_speed then
eject_speed = 1
end
local mndef = minetest.registered_nodes[minetest.get_node(pos).name]
local mother_stuck = mndef and mndef.walkable
local angle = math.random(0, math.pi*2)
local children = {}
local spawn_count = math.random(2, 4)
for i = 1, spawn_count do
dir = vector.new(math.cos(angle), 0, math.sin(angle))
posadd = vector.normalize(dir) * spawn_distance
newpos = pos + posadd
-- If child would end up in a wall, use position of the "mother", unless
-- the "mother" was stuck as well
if not mother_stuck then
local cndef = minetest.registered_nodes[minetest.get_node(newpos).name]
if cndef and cndef.walkable then
newpos = pos
eject_speed = eject_speed * 0.5
end
end
local mob = minetest.add_entity(newpos, child_mob)
if not mother_stuck then
mob:set_velocity(dir * eject_speed)
end
mob:set_yaw(angle - math.pi/2)
table.insert(children, mob)
angle = angle + (math.pi*2) / spawn_count
end
-- If mother was murdered, children attack the killer after 1 second
if self.state == "attack" then
minetest.after(1.0, function(children, enemy)
local le
for c = 1, #children do
le = children[c]:get_luaentity()
if le then
le.state = "attack"
le.attack = enemy
end
end
end, children, self.attack)
end
end
end
local swamp_light_max = 7
local function slime_spawn_check(pos, environmental_light, artificial_light, sky_light)
local maxlight = swamp_light_max
if is_slime_chunk(pos) then
maxlight = minetest.LIGHT_MAX + 1
end
return artificial_light <= maxlight
end
-- Slime
local slime_big = {
description = S("Slime"),
type = "monster",
spawn_class = "hostile",
group_attack = { "mobs_mc:slime_big", "mobs_mc:slime_small", "mobs_mc:slime_tiny" },
hp_min = 16,
hp_max = 16,
xp_min = 4,
xp_max = 4,
collisionbox = {-1.02, -0.01, -1.02, 1.02, 2.03, 1.02},
visual_size = {x=12.5, y=12.5},
textures = {{"mobs_mc_slime.png", "mobs_mc_slime.png"}},
visual = "mesh",
mesh = "mobs_mc_slime.b3d",
makes_footstep_sound = true,
sounds = {
jump = "green_slime_jump",
death = "green_slime_death",
damage = "green_slime_damage",
attack = "green_slime_attack",
distance = 16,
},
damage = 4,
reach = 3,
armor = 100,
drops = {},
-- TODO: Fix animations
animation = {
jump_speed = 17,
stand_speed = 17,
walk_speed = 17,
jump_start = 1,
jump_end = 20,
stand_start = 1,
stand_end = 20,
walk_start = 1,
walk_end = 20,
},
fall_damage = 0,
view_range = 16,
attack_type = "dogfight",
passive = false,
jump = true,
walk_velocity = 1.9,
run_velocity = 1.9,
walk_chance = 0,
jump_height = 5.2,
fear_height = 0,
spawn_small_alternative = "mobs_mc:slime_small",
on_die = spawn_children_on_die("mobs_mc:slime_small", 1.0, 1.5),
use_texture_alpha = true,
spawn_check = slime_spawn_check,
}
mcl_mobs.register_mob("mobs_mc:slime_big", slime_big)
local slime_small = table.copy(slime_big)
slime_small.sounds.base_pitch = 1.15
slime_small.hp_min = 4
slime_small.hp_max = 4
slime_small.xp_min = 2
slime_small.xp_max = 2
slime_small.collisionbox = {-0.51, -0.01, -0.51, 0.51, 1.00, 0.51}
slime_small.visual_size = {x=6.25, y=6.25}
slime_small.damage = 3
slime_small.reach = 2.75
slime_small.walk_velocity = 1.8
slime_small.run_velocity = 1.8
slime_small.jump_height = 4.3
slime_small.spawn_small_alternative = "mobs_mc:slime_tiny"
slime_small.on_die = spawn_children_on_die("mobs_mc:slime_tiny", 0.6, 1.0)
mcl_mobs.register_mob("mobs_mc:slime_small", slime_small)
local slime_tiny = table.copy(slime_big)
slime_tiny.sounds.base_pitch = 1.3
slime_tiny.hp_min = 1
slime_tiny.hp_max = 1
slime_tiny.xp_min = 1
slime_tiny.xp_max = 1
slime_tiny.collisionbox = {-0.2505, -0.01, -0.2505, 0.2505, 0.50, 0.2505}
slime_tiny.visual_size = {x=3.125, y=3.125}
slime_tiny.damage = 0
slime_tiny.reach = 2.5
slime_tiny.drops = {
-- slimeball
{name = "mcl_mobitems:slimeball",
chance = 1,
min = 0,
max = 2,},
}
slime_tiny.walk_velocity = 1.7
slime_tiny.run_velocity = 1.7
slime_tiny.jump_height = 3
slime_tiny.spawn_small_alternative = nil
slime_tiny.on_die = nil
mcl_mobs.register_mob("mobs_mc:slime_tiny", slime_tiny)
local water_level = mobs_mc.water_level
local cave_biomes = {
"FlowerForest_underground",
"JungleEdge_underground",
"StoneBeach_underground",
"MesaBryce_underground",
"Mesa_underground",
"RoofedForest_underground",
"Jungle_underground",
"Swampland_underground",
"BirchForest_underground",
"Plains_underground",
"MesaPlateauF_underground",
"ExtremeHills_underground",
"MegaSpruceTaiga_underground",
"BirchForestM_underground",
"SavannaM_underground",
"MesaPlateauFM_underground",
"Desert_underground",
"Savanna_underground",
"Forest_underground",
"SunflowerPlains_underground",
"ColdTaiga_underground",
"IcePlains_underground",
"IcePlainsSpikes_underground",
"MegaTaiga_underground",
"Taiga_underground",
"ExtremeHills+_underground",
"JungleM_underground",
"ExtremeHillsM_underground",
"JungleEdgeM_underground",
"MangroveSwamp_underground"
}
local cave_min = mcl_vars.mg_overworld_min
local cave_max = water_level - 23
local swampy_biomes = {"Swampland", "MangroveSwamp"}
local swamp_min = water_level
local swamp_max = water_level + 27
mcl_mobs:spawn_specific(
"mobs_mc:slime_tiny",
"overworld",
"ground",
cave_biomes,
0,
minetest.LIGHT_MAX+1,
30,
12000,
4,
cave_min,
cave_max,
nil, nil, check_position)
mcl_mobs:spawn_specific(
"mobs_mc:slime_tiny",
"overworld",
"ground",
swampy_biomes,
0,
swamp_light_max,
30,
12000,
4,
swamp_min,
swamp_max)
mcl_mobs:spawn_specific(
"mobs_mc:slime_small",
"overworld",
"ground",
cave_biomes,
0,
minetest.LIGHT_MAX+1,
30,
8500,
4,
cave_min,
cave_max,
nil, nil, check_position)
mcl_mobs:spawn_specific(
"mobs_mc:slime_small",
"overworld",
"ground",
swampy_biomes,
0,
swamp_light_max,
30,
8500,
4,
swamp_min,
swamp_max)
mcl_mobs:spawn_specific(
"mobs_mc:slime_big",
"overworld",
"ground",
cave_biomes,
0,
minetest.LIGHT_MAX+1,
30,
10000,
4,
cave_min,
cave_max,
nil, nil, check_position)
mcl_mobs:spawn_specific(
"mobs_mc:slime_big",
"overworld",
"ground",
swampy_biomes,
0,
swamp_light_max,
30,
10000,
4,
swamp_min,
swamp_max)
-- Magma cube
local magma_cube_big = {
description = S("Magma Cube"),
type = "monster",
spawn_class = "hostile",
hp_min = 16,
hp_max = 16,
xp_min = 4,
xp_max = 4,
collisionbox = {-1.02, -0.01, -1.02, 1.02, 2.03, 1.02},
visual_size = {x=12.5, y=12.5},
textures = {{ "mobs_mc_magmacube.png", "mobs_mc_magmacube.png" }},
visual = "mesh",
mesh = "mobs_mc_magmacube.b3d",
makes_footstep_sound = true,
sounds = {
jump = "mobs_mc_magma_cube_big",
death = "mobs_mc_magma_cube_big",
attack = "mobs_mc_magma_cube_attack",
distance = 16,
},
walk_velocity = 2.5,
run_velocity = 2.5,
damage = 6,
reach = 3,
armor = 53,
drops = {
{name = "mcl_mobitems:magma_cream",
chance = 4,
min = 1,
max = 1,},
},
-- TODO: Fix animations
animation = {
jump_speed = 20,
stand_speed = 20,
walk_speed = 20,
jump_start = 1,
jump_end = 40,
stand_start = 1,
stand_end = 1,
walk_start = 1,
walk_end = 40,
},
water_damage = 0,
lava_damage = 0,
fire_damage = 0,
light_damage = 0,
fall_damage = 0,
view_range = 16,
attack_type = "dogfight",
passive = false,
jump = true,
jump_height = 8,
walk_chance = 0,
fear_height = 0,
spawn_small_alternative = "mobs_mc:magma_cube_small",
on_die = spawn_children_on_die("mobs_mc:magma_cube_small", 0.8, 1.5),
fire_resistant = true,
}
mcl_mobs.register_mob("mobs_mc:magma_cube_big", magma_cube_big)
local magma_cube_small = table.copy(magma_cube_big)
magma_cube_small.sounds.jump = "mobs_mc_magma_cube_small"
magma_cube_small.sounds.death = "mobs_mc_magma_cube_small"
magma_cube_small.hp_min = 4
magma_cube_small.hp_max = 4
magma_cube_small.xp_min = 2
magma_cube_small.xp_max = 2
magma_cube_small.collisionbox = {-0.51, -0.01, -0.51, 0.51, 1.00, 0.51}
magma_cube_small.visual_size = {x=6.25, y=6.25}
magma_cube_small.damage = 3
magma_cube_small.reach = 2.75
magma_cube_small.walk_velocity = .8
magma_cube_small.run_velocity = 2.0
magma_cube_small.jump_height = 6
magma_cube_small.damage = 4
magma_cube_small.reach = 2.75
magma_cube_small.armor = 66
magma_cube_small.spawn_small_alternative = "mobs_mc:magma_cube_tiny"
magma_cube_small.on_die = spawn_children_on_die("mobs_mc:magma_cube_tiny", 0.6, 1.0)
mcl_mobs.register_mob("mobs_mc:magma_cube_small", magma_cube_small)
local magma_cube_tiny = table.copy(magma_cube_big)
magma_cube_tiny.sounds.jump = "mobs_mc_magma_cube_small"
magma_cube_tiny.sounds.death = "mobs_mc_magma_cube_small"
magma_cube_tiny.sounds.base_pitch = 1.25
magma_cube_tiny.hp_min = 1
magma_cube_tiny.hp_max = 1
magma_cube_tiny.xp_min = 1
magma_cube_tiny.xp_max = 1
magma_cube_tiny.collisionbox = {-0.2505, -0.01, -0.2505, 0.2505, 0.50, 0.2505}
magma_cube_tiny.visual_size = {x=3.125, y=3.125}
magma_cube_tiny.walk_velocity = 1.02
magma_cube_tiny.run_velocity = 1.02
magma_cube_tiny.jump_height = 4
magma_cube_tiny.damage = 3
magma_cube_tiny.reach = 2.5
magma_cube_tiny.armor = 50
magma_cube_tiny.drops = {}
magma_cube_tiny.spawn_small_alternative = nil
magma_cube_tiny.on_die = nil
mcl_mobs.register_mob("mobs_mc:magma_cube_tiny", magma_cube_tiny)
local magma_cube_biomes = {"Nether", "BasaltDelta"}
local nether_min = mcl_vars.mg_nether_min
local nether_max = mcl_vars.mg_nether_max
mcl_mobs:spawn_specific(
"mobs_mc:magma_cube_tiny",
"nether",
"ground",
magma_cube_biomes,
0,
minetest.LIGHT_MAX+1,
30,
15000,
4,
nether_min,
nether_max)
mcl_mobs:spawn_specific(
"mobs_mc:magma_cube_small",
"nether",
"ground",
magma_cube_biomes,
0,
minetest.LIGHT_MAX+1,
30,
15500,
4,
nether_min,
nether_max)
mcl_mobs:spawn_specific(
"mobs_mc:magma_cube_big",
"nether",
"ground",
magma_cube_biomes,
0,
minetest.LIGHT_MAX+1,
30,
16000,
4,
nether_min,
nether_max)
-- spawn eggs
mcl_mobs.register_egg("mobs_mc:magma_cube_big", S("Magma Cube"), "#350000", "#fcfc00")
-- non_spawn_specific is typically for mobs who don't spawn in the overworld, or mobs that don't spawn
-- naturally. However, slimes are a particular case where they spawn under different conditions in the same
-- dimension.
mcl_mobs:non_spawn_specific("mobs_mc:slime_big","overworld",0,minetest.LIGHT_MAX+1)
mcl_mobs:non_spawn_specific("mobs_mc:magma_cube_big","overworld",0, minetest.LIGHT_MAX+1)
mcl_mobs.register_egg("mobs_mc:slime_big", S("Slime"), "#52a03e", "#7ebf6d")
-- FIXME: add spawn eggs for small and tiny slimes and magma cubes
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