forked from MineClone5/MineClone5
258 lines
8.5 KiB
Lua
258 lines
8.5 KiB
Lua
local mod_death_messages = minetest.get_modpath("mcl_death_messages")
|
|
local mod_hunger = minetest.get_modpath("mcl_hunger")
|
|
|
|
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:setvelocity({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:getvelocity()
|
|
local p = obj:getpos()
|
|
if ent and ent.name == "mcl_tnt:tnt" then
|
|
obj:setvelocity({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:setvelocity({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, string.format("%s was caught in an explosion.", obj:get_player_name()))
|
|
end
|
|
if mod_hunger then
|
|
mcl_hunger.exhaust(obj:get_player_name(), mcl_hunger.EXHAUST_DAMAGE)
|
|
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
|
|
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 = "TNT",
|
|
paramtype = "light",
|
|
sunlight_propagates = true,
|
|
_doc_items_longdesc = string.format("An explosive device. When it explodes, it will hurt living beings, destroy blocks around it, throw blocks affected by gravity all over the place and light fires. A single TNT has an explosion radius of %d. 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 = "Place the TNT on the ground and ignite it with one of the methods above. Quickly get in safe distance quickly. The TNT will start to be affected by gravity and explodes in 4 seconds.",
|
|
groups = { dig_immediate = 3, tnt = 1, enderman_takable=1 },
|
|
mesecons = {effector = {
|
|
action_on = tnt.ignite,
|
|
rules = mesecon.rules.alldirs,
|
|
}},
|
|
_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:setvelocity({x=hdir_x, y=2, z=hdir_z})
|
|
self.object:setacceleration({x=0, y=-10, z=0})
|
|
self.object:settexturemod("^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:getpos()
|
|
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:settexturemod("")
|
|
else
|
|
self.object:settexturemod("^mcl_tnt_blink.png")
|
|
end
|
|
self.blinkstatus = not self.blinkstatus
|
|
end
|
|
if self.timer > 4 then
|
|
tnt.boom(self.object:getpos())
|
|
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 or minetest.is_protected(pos, "tnt") 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
|