forked from VoxeLibre/VoxeLibre
260 lines
8.3 KiB
Lua
260 lines
8.3 KiB
Lua
local S = minetest.get_translator("mcl_tnt")
|
|
|
|
local mod_death_messages = minetest.get_modpath("mcl_death_messages")
|
|
|
|
local function spawn_tnt(pos, entname)
|
|
minetest.sound_play("tnt_ignite", {pos = pos,gain = 1.0,max_hear_distance = 15,})
|
|
local tnt = minetest.add_entity(pos, entname)
|
|
tnt:set_armor_groups({immortal=1})
|
|
return tnt
|
|
end
|
|
|
|
local function activate_if_tnt(nname, np, tnt_np, tntr)
|
|
if nname == "mcl_tnt:tnt" then
|
|
local e = spawn_tnt(np, nname)
|
|
e:set_velocity({x=(np.x - tnt_np.x)*5+(tntr / 4), y=(np.y - tnt_np.y)*5+(tntr / 3), z=(np.z - tnt_np.z)*5+(tntr / 4)})
|
|
end
|
|
end
|
|
|
|
local function do_tnt_physics(tnt_np,tntr)
|
|
local objs = minetest.get_objects_inside_radius(tnt_np, tntr)
|
|
for k, obj in pairs(objs) do
|
|
local ent = obj:get_luaentity()
|
|
local v = obj:get_velocity()
|
|
local p = obj:get_pos()
|
|
if ent and ent.name == "mcl_tnt:tnt" then
|
|
obj:set_velocity({x=(p.x - tnt_np.x) + (tntr / 2) + v.x, y=(p.y - tnt_np.y) + tntr + v.y, z=(p.z - tnt_np.z) + (tntr / 2) + v.z})
|
|
else
|
|
if v ~= nil then
|
|
obj:set_velocity({x=(p.x - tnt_np.x) + (tntr / 4) + v.x, y=(p.y - tnt_np.y) + (tntr / 2) + v.y, z=(p.z - tnt_np.z) + (tntr / 4) + v.z})
|
|
else
|
|
local dist = math.max(1, vector.distance(tnt_np, p))
|
|
local damage = (4 / dist) * tntr
|
|
if obj:is_player() == true then
|
|
if mod_death_messages then
|
|
mcl_death_messages.player_damage(obj, S("@1 was caught in an explosion.", obj:get_player_name()))
|
|
end
|
|
end
|
|
obj:set_hp(obj:get_hp() - damage)
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
tnt = {}
|
|
tnt.ignite = function(pos)
|
|
minetest.remove_node(pos)
|
|
spawn_tnt(pos, "mcl_tnt:tnt")
|
|
core.check_for_falling(pos)
|
|
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
|
|
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,
|
|
_doc_items_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),
|
|
_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 },
|
|
mesecons = tnt_mesecons,
|
|
_on_ignite = function(player, pointed_thing)
|
|
tnt.ignite(pointed_thing.under)
|
|
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,
|
|
blinkstatus = true,}
|
|
|
|
function TNT:on_activate(staticdata)
|
|
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({x=hdir_x, y=2, z=hdir_z})
|
|
self.object:set_acceleration({x=0, y=-10, z=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 = {x = -10, y = -10, z = -10},
|
|
maxvel = {x = 10, y = 10, z = 10},
|
|
minacc = vector.new(),
|
|
maxacc = vector.new(),
|
|
minexptime = 1,
|
|
maxexptime = 2.5,
|
|
minsize = radius * 1,
|
|
maxsize = radius * 3,
|
|
texture = "tnt_smoke.png",
|
|
})
|
|
|
|
-- we just dropped some items. Look at the items entities and pick
|
|
-- one of them to use as texture
|
|
local texture = "tnt_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 = {x = -3, y = 0, z = -3},
|
|
maxvel = {x = 3, y = 5, z = 3},
|
|
minacc = {x = 0, y = -10, z = 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()
|
|
minetest.add_particle({
|
|
pos = {x=pos.x,y=pos.y+0.5,z=pos.z},
|
|
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 = "tnt_smoke.png"
|
|
})
|
|
self.timer = self.timer + dtime
|
|
self.blinktimer = self.blinktimer + dtime
|
|
if self.blinktimer > 0.25 then
|
|
self.blinktimer = self.blinktimer - 0.25
|
|
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 > 4 then
|
|
tnt.boom(self.object:get_pos())
|
|
self.object:remove()
|
|
end
|
|
end
|
|
|
|
tnt.boom = function(pos, info)
|
|
if not info then info = {} end
|
|
local range = info.radius or TNT_RANGE
|
|
local damage_range = info.damage_radius or TNT_RANGE
|
|
|
|
pos.x = math.floor(pos.x+0.5)
|
|
pos.y = math.floor(pos.y+0.5)
|
|
pos.z = math.floor(pos.z+0.5)
|
|
do_tnt_physics(pos, range)
|
|
local meta = minetest.get_meta(pos)
|
|
local sound
|
|
if not info.sound then
|
|
sound = "tnt_explode"
|
|
else
|
|
sound = info.sound
|
|
end
|
|
minetest.sound_play(sound, {pos = pos,gain = 1.0,max_hear_distance = 16,})
|
|
local node = minetest.get_node(pos)
|
|
if minetest.get_item_group("water") == 1 or minetest.get_item_group("lava") == 1 then
|
|
-- Cancel the Explosion
|
|
return
|
|
end
|
|
for x=-range,range do
|
|
for y=-range,range do
|
|
for z=-range,range do
|
|
if x*x+y*y+z*z <= range * range + range then
|
|
local np={x=pos.x+x,y=pos.y+y,z=pos.z+z}
|
|
local n = minetest.get_node(np)
|
|
local def = minetest.registered_nodes[n.name]
|
|
-- Simple blast resistance check (for now). This keeps the important blocks like bedrock, command block, etc. intact.
|
|
-- TODO: Implement the real blast resistance algorithm
|
|
if def and n.name ~= "air" and n.name ~= "ignore" and (def._mcl_blast_resistance == nil or def._mcl_blast_resistance < 1000) then
|
|
activate_if_tnt(n.name, np, pos, 3)
|
|
minetest.remove_node(np)
|
|
core.check_for_falling(np)
|
|
if n.name ~= "mcl_tnt:tnt" and math.random() > 0.9 then
|
|
local drop = minetest.get_node_drops(n.name, "")
|
|
for _,item in ipairs(drop) do
|
|
if type(item) == "string" then
|
|
if math.random(1,100) > 40 then
|
|
local obj = minetest.add_item(np, item)
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|
|
add_effects(pos, range, {})
|
|
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
|