231 lines
6.5 KiB
Lua
231 lines
6.5 KiB
Lua
local S = minetest.get_translator(minetest.get_current_modname())
|
|
local explosions_griefing = minetest.settings:get_bool("mcl_explosions_griefing", true)
|
|
|
|
tnt = {}
|
|
|
|
tnt.BOOMTIMER = 4
|
|
tnt.BLINKTIMER = 0.25
|
|
|
|
---@param pos Vector
|
|
---@param entname string
|
|
---@return ObjectRef?
|
|
local function spawn_tnt(pos, entname)
|
|
minetest.sound_play("tnt_ignite", { pos = pos, gain = 1.0, max_hear_distance = 15 }, true)
|
|
local ent = minetest.add_entity(pos, entname)
|
|
if ent then
|
|
ent:set_armor_groups({ immortal = 1 })
|
|
end
|
|
return ent
|
|
end
|
|
|
|
---@param pos Vector
|
|
---@return ObjectRef?
|
|
function tnt.ignite(pos)
|
|
minetest.remove_node(pos)
|
|
local e = spawn_tnt(pos, "mcl_tnt:tnt")
|
|
minetest.check_for_falling(pos)
|
|
return e
|
|
end
|
|
|
|
---Add smoke particle of entity at pos.
|
|
---
|
|
---Intended to be called every step.
|
|
---@param pos Vector
|
|
function tnt.smoke_step(pos)
|
|
minetest.add_particle({
|
|
pos = vector.offset(pos, 0, 0.5, 0),
|
|
velocity = vector.new(math.random() * 0.2 - 0.1, 1.0 + math.random(), math.random() * 0.2 - 0.1),
|
|
acceleration = vector.new(0, -0.1, 0),
|
|
expirationtime = 0.15 + math.random() * 0.25,
|
|
size = 1.0 + math.random(),
|
|
collisiondetection = false,
|
|
texture = "mcl_particles_smoke.png"
|
|
})
|
|
end
|
|
|
|
local TNT_RANGE = 3
|
|
|
|
local sounds
|
|
if minetest.get_modpath("mcl_sounds") then
|
|
sounds = mcl_sounds.node_sound_wood_defaults()
|
|
end
|
|
|
|
local tnt_mesecons
|
|
if minetest.get_modpath("mesecons") then
|
|
tnt_mesecons = {
|
|
effector = {
|
|
action_on = tnt.ignite,
|
|
rules = mesecon.rules.alldirs,
|
|
},
|
|
}
|
|
end
|
|
|
|
local longdesc
|
|
if explosions_griefing then
|
|
longdesc = S("An explosive device. When it explodes, it will hurt living beings and destroy blocks around it. TNT has an explosion radius of @1. With a small chance, blocks may drop as an item (as if being mined) rather than being destroyed. TNT can be ignited by tools, explosions, fire, lava and redstone signals."
|
|
, TNT_RANGE)
|
|
else
|
|
longdesc = S("An explosive device. When it explodes, it will hurt living beings. TNT has an explosion radius of @1. TNT can be ignited by tools, explosions, fire, lava and redstone signals."
|
|
, TNT_RANGE)
|
|
end
|
|
|
|
minetest.register_node("mcl_tnt:tnt", {
|
|
tiles = {
|
|
"default_tnt_top.png",
|
|
"default_tnt_bottom.png",
|
|
"default_tnt_side.png",
|
|
"default_tnt_side.png",
|
|
"default_tnt_side.png",
|
|
"default_tnt_side.png",
|
|
},
|
|
is_ground_content = false,
|
|
stack_max = 64,
|
|
description = S("TNT"),
|
|
paramtype = "light",
|
|
sunlight_propagates = true,
|
|
_tt_help = S("Ignited by tools, explosions, fire, lava, redstone power") ..
|
|
"\n" .. S("Explosion radius: @1", tostring(TNT_RANGE)),
|
|
_doc_items_longdesc = longdesc,
|
|
_doc_items_usagehelp = S("Place the TNT and ignite it with one of the methods above. Quickly get in safe distance. The TNT will start to be affected by gravity and explodes in 4 seconds."),
|
|
groups = { dig_immediate = 3, tnt = 1, enderman_takable = 1, flammable = -1 },
|
|
mesecons = tnt_mesecons,
|
|
on_blast = function(pos, _)
|
|
local e = tnt.ignite(pos)
|
|
if e then
|
|
e:get_luaentity().timer = tnt.BOOMTIMER - (0.5 + math.random())
|
|
end
|
|
end,
|
|
_on_ignite = function(player, pointed_thing)
|
|
tnt.ignite(pointed_thing.under)
|
|
return true
|
|
end,
|
|
_on_burn = function(pos)
|
|
tnt.ignite(pos)
|
|
return true
|
|
end,
|
|
_on_dispense = function(stack, pos, droppos, dropnode, dropdir)
|
|
-- Place and ignite TNT
|
|
if minetest.registered_nodes[dropnode.name].buildable_to then
|
|
minetest.set_node(droppos, { name = stack:get_name() })
|
|
tnt.ignite(droppos)
|
|
end
|
|
end,
|
|
sounds = sounds,
|
|
})
|
|
|
|
local TNT = {
|
|
-- Static definition
|
|
physical = true, -- Collides with things
|
|
--weight = -100,
|
|
collisionbox = { -0.5, -0.5, -0.5, 0.5, 0.5, 0.5 },
|
|
visual = "cube",
|
|
textures = {
|
|
"default_tnt_top.png",
|
|
"default_tnt_bottom.png",
|
|
"default_tnt_side.png",
|
|
"default_tnt_side.png",
|
|
"default_tnt_side.png",
|
|
"default_tnt_side.png",
|
|
},
|
|
-- Initial value for our timer
|
|
timer = 0,
|
|
blinktimer = 0,
|
|
tnt_knockback = true,
|
|
blinkstatus = true,
|
|
}
|
|
|
|
function TNT:on_activate(_, _)
|
|
local phi = math.random(0, 65535) / 65535 * 2 * math.pi
|
|
local hdir_x = math.cos(phi) * 0.02
|
|
local hdir_z = math.sin(phi) * 0.02
|
|
self.object:set_velocity(vector.new(hdir_x, 2, hdir_z))
|
|
self.object:set_acceleration(vector.new(0, -10, 0))
|
|
self.object:set_texture_mod("^mcl_tnt_blink.png")
|
|
end
|
|
|
|
--[[local function add_effects(pos, radius, drops)
|
|
minetest.add_particlespawner({
|
|
amount = 64,
|
|
time = 0.5,
|
|
minpos = vector.subtract(pos, radius / 2),
|
|
maxpos = vector.add(pos, radius / 2),
|
|
minvel = vector.new(-10, -10, -10),
|
|
maxvel = vector.new(10, 10, 10),
|
|
minacc = vector.new(),
|
|
maxacc = vector.new(),
|
|
minexptime = 1,
|
|
maxexptime = 2.5,
|
|
minsize = radius * 1,
|
|
maxsize = radius * 3,
|
|
texture = "mcl_particles_smoke.png",
|
|
})
|
|
|
|
-- we just dropped some items. Look at the items entities and pick
|
|
-- one of them to use as texture
|
|
local texture = "mcl_particles_smoke.png" --fallback texture
|
|
local most = 0
|
|
for name, stack in pairs(drops) do
|
|
local count = stack:get_count()
|
|
if count > most then
|
|
most = count
|
|
local def = minetest.registered_nodes[name]
|
|
if def and def.tiles and def.tiles[1] then
|
|
texture = def.tiles[1]
|
|
end
|
|
end
|
|
end
|
|
|
|
minetest.add_particlespawner({
|
|
amount = 32,
|
|
time = 0.1,
|
|
minpos = vector.subtract(pos, radius / 2),
|
|
maxpos = vector.add(pos, radius / 2),
|
|
minvel = vector.new(-3, 0, -3),
|
|
maxvel = vector.new(3, 5, 3),
|
|
minacc = vector.new(0, -10, 0),
|
|
minexptime = 0.8,
|
|
maxexptime = 2.0,
|
|
minsize = radius * 0.66,
|
|
maxsize = radius * 2,
|
|
texture = texture,
|
|
collisiondetection = true,
|
|
})
|
|
end]]
|
|
|
|
function TNT:on_step(dtime, _)
|
|
local pos = self.object:get_pos()
|
|
tnt.smoke_step(pos)
|
|
self.timer = self.timer + dtime
|
|
self.blinktimer = self.blinktimer + dtime
|
|
if self.blinktimer > tnt.BLINKTIMER then
|
|
self.blinktimer = self.blinktimer - tnt.BLINKTIMER
|
|
if self.blinkstatus then
|
|
self.object:set_texture_mod("")
|
|
else
|
|
self.object:set_texture_mod("^mcl_tnt_blink.png")
|
|
end
|
|
self.blinkstatus = not self.blinkstatus
|
|
end
|
|
if self.timer > tnt.BOOMTIMER then
|
|
mcl_explosions.explode(self.object:get_pos(), 4, {}, self.object)
|
|
self.object:remove()
|
|
end
|
|
end
|
|
|
|
minetest.register_entity("mcl_tnt:tnt", TNT)
|
|
|
|
if minetest.get_modpath("mcl_mobitems") then
|
|
minetest.register_craft({
|
|
output = "mcl_tnt:tnt",
|
|
recipe = {
|
|
{ "mcl_mobitems:gunpowder", "group:sand", "mcl_mobitems:gunpowder" },
|
|
{ "group:sand", "mcl_mobitems:gunpowder", "group:sand" },
|
|
{ "mcl_mobitems:gunpowder", "group:sand", "mcl_mobitems:gunpowder" }
|
|
},
|
|
})
|
|
end
|
|
|
|
if minetest.get_modpath("doc_identifier") then
|
|
doc.sub.identifier.register_object("mcl_tnt:tnt", "nodes", "mcl_tnt:tnt")
|
|
end
|