nalc_game/mods/tnt/init.lua

362 lines
8.5 KiB
Lua
Raw Normal View History

2014-07-14 00:08:03 +02:00
-- Default to enabled in singleplayer and disabled in multiplayer
local singleplayer = minetest.is_singleplayer()
local setting = minetest.setting_getbool("enable_tnt")
if (not singleplayer and setting ~= true) or
(singleplayer and setting == false) then
2014-07-14 00:08:03 +02:00
return
end
2014-04-19 19:43:53 +02:00
-- loss probabilities array (one in X will be lost)
local loss_prob = {}
loss_prob["default:cobble"] = 3
loss_prob["default:dirt"] = 4
2014-07-14 00:08:03 +02:00
local radius = tonumber(minetest.setting_get("tnt_radius") or 3)
2014-04-19 19:43:53 +02:00
2014-07-14 00:08:03 +02:00
-- Fill a list with data for content IDs, after all nodes are registered
local cid_data = {}
minetest.after(0, function()
for name, def in pairs(minetest.registered_nodes) do
cid_data[minetest.get_content_id(name)] = {
name = name,
drops = def.drops,
flammable = def.groups.flammable,
on_blast = def.on_blast,
2014-07-14 00:08:03 +02:00
}
2014-04-19 19:43:53 +02:00
end
2014-07-14 00:08:03 +02:00
end)
local function rand_pos(center, pos, radius)
pos.x = center.x + math.random(-radius, radius)
pos.z = center.z + math.random(-radius, radius)
2014-04-19 19:43:53 +02:00
end
2014-07-14 00:08:03 +02:00
local function eject_drops(drops, pos, radius)
local drop_pos = vector.new(pos)
for _, item in pairs(drops) do
local count = item:get_count()
local max = item:get_stack_max()
if count > max then
item:set_count(max)
end
while count > 0 do
if count < max then
item:set_count(count)
end
rand_pos(pos, drop_pos, radius)
local obj = minetest.add_item(drop_pos, item)
if obj then
obj:get_luaentity().collect = true
obj:setacceleration({x=0, y=-10, z=0})
obj:setvelocity({x=math.random(-3, 3), y=10,
z=math.random(-3, 3)})
end
count = count - max
2014-04-19 19:43:53 +02:00
end
end
2014-07-14 00:08:03 +02:00
end
2014-04-19 19:43:53 +02:00
2014-07-14 00:08:03 +02:00
local function add_drop(drops, item)
item = ItemStack(item)
local name = item:get_name()
if loss_prob[name] ~= nil and math.random(1, loss_prob[name]) == 1 then
return
2014-04-19 19:43:53 +02:00
end
2014-07-14 00:08:03 +02:00
local drop = drops[name]
if drop == nil then
drops[name] = item
else
drop:set_count(drop:get_count() + item:get_count())
2014-04-19 19:43:53 +02:00
end
end
2014-07-14 00:08:03 +02:00
local fire_node = {name="fire:basic_flame"}
local function destroy(drops, pos, cid)
2014-07-13 19:20:20 +02:00
if minetest.is_protected(pos, "") then
return
end
2014-07-14 00:08:03 +02:00
local def = cid_data[cid]
2015-05-12 16:53:04 +02:00
if def and def.on_blast then
def.on_blast(vector.new(pos), 1)
2015-05-12 16:53:04 +02:00
return
end
2014-07-14 00:08:03 +02:00
if def and def.flammable then
minetest.set_node(pos, fire_node)
else
2015-05-12 16:53:04 +02:00
minetest.remove_node(pos)
2014-07-14 00:08:03 +02:00
if def then
local node_drops = minetest.get_node_drops(def.name, "")
for _, item in ipairs(node_drops) do
add_drop(drops, item)
2014-04-19 19:43:53 +02:00
end
end
end
end
2014-07-14 00:08:03 +02:00
local function calc_velocity(pos1, pos2, old_vel, power)
local vel = vector.direction(pos1, pos2)
vel = vector.normalize(vel)
vel = vector.multiply(vel, power)
-- Divide by distance
local dist = vector.distance(pos1, pos2)
dist = math.max(dist, 1)
vel = vector.divide(vel, dist)
-- Add old velocity
vel = vector.add(vel, old_vel)
return vel
end
local function entity_physics(pos, radius)
-- Make the damage radius larger than the destruction radius
radius = radius * 2
local objs = minetest.get_objects_inside_radius(pos, radius)
for _, obj in pairs(objs) do
local obj_pos = obj:getpos()
local obj_vel = obj:getvelocity()
local dist = math.max(1, vector.distance(pos, obj_pos))
if obj_vel ~= nil then
obj:setvelocity(calc_velocity(pos, obj_pos,
obj_vel, radius * 10))
2014-04-19 19:43:53 +02:00
end
2014-07-14 00:08:03 +02:00
local damage = (4 / dist) * radius
obj:set_hp(obj:get_hp() - damage)
end
end
local function add_effects(pos, radius)
minetest.add_particlespawner({
amount = 128,
time = 1,
minpos = vector.subtract(pos, radius / 2),
maxpos = vector.add(pos, radius / 2),
minvel = {x=-20, y=-20, z=-20},
maxvel = {x=20, y=20, z=20},
minacc = vector.new(),
maxacc = vector.new(),
minexptime = 1,
maxexptime = 3,
minsize = 8,
maxsize = 16,
texture = "tnt_smoke.png",
})
end
local function burn(pos)
local name = minetest.get_node(pos).name
if name == "tnt:tnt" then
minetest.sound_play("tnt_ignite", {pos=pos})
minetest.set_node(pos, {name="tnt:tnt_burning"})
minetest.get_node_timer(pos):start(1)
elseif name == "tnt:gunpowder" then
minetest.sound_play("tnt_gunpowder_burning", {pos=pos, gain=2})
minetest.set_node(pos, {name="tnt:gunpowder_burning"})
minetest.get_node_timer(pos):start(1)
end
end
local function explode(pos, radius)
local pos = vector.round(pos)
local vm = VoxelManip()
local pr = PseudoRandom(os.time())
local p1 = vector.subtract(pos, radius)
local p2 = vector.add(pos, radius)
local minp, maxp = vm:read_from_map(p1, p2)
local a = VoxelArea:new({MinEdge = minp, MaxEdge = maxp})
local data = vm:get_data()
local drops = {}
local p = {}
local c_air = minetest.get_content_id("air")
for z = -radius, radius do
for y = -radius, radius do
local vi = a:index(pos.x + (-radius), pos.y + y, pos.z + z)
for x = -radius, radius do
if (x * x) + (y * y) + (z * z) <=
(radius * radius) + pr:next(-radius, radius) then
local cid = data[vi]
p.x = pos.x + x
p.y = pos.y + y
p.z = pos.z + z
if cid ~= c_air then
2014-07-14 00:08:03 +02:00
destroy(drops, p, cid)
2014-04-19 19:43:53 +02:00
end
end
2014-07-14 00:08:03 +02:00
vi = vi + 1
end
end
end
2014-04-19 19:43:53 +02:00
2014-07-14 00:08:03 +02:00
return drops
end
2014-04-19 19:43:53 +02:00
2014-07-14 00:08:03 +02:00
local function boom(pos)
minetest.sound_play("tnt_explode", {pos=pos, gain=1.5, max_hear_distance=2*64})
minetest.set_node(pos, {name="tnt:boom"})
minetest.get_node_timer(pos):start(0.5)
2014-04-19 19:43:53 +02:00
2014-07-14 00:08:03 +02:00
local drops = explode(pos, radius)
entity_physics(pos, radius)
eject_drops(drops, pos, radius)
add_effects(pos, radius)
2014-04-19 19:43:53 +02:00
end
minetest.register_node("tnt:tnt", {
description = "TNT",
tiles = {"tnt_top.png", "tnt_bottom.png", "tnt_side.png"},
groups = {dig_immediate=2, mesecon=2},
sounds = default.node_sound_wood_defaults(),
on_punch = function(pos, node, puncher)
if puncher:get_wielded_item():get_name() == "default:torch" then
minetest.sound_play("tnt_ignite", {pos=pos})
minetest.set_node(pos, {name="tnt:tnt_burning"})
2014-07-14 00:08:03 +02:00
minetest.get_node_timer(pos):start(4)
2014-04-19 19:43:53 +02:00
end
end,
on_blast = function(pos, intensity)
burn(pos)
end,
2014-07-14 00:08:03 +02:00
mesecons = {effector = {action_on = boom}},
2014-04-19 19:43:53 +02:00
})
minetest.register_node("tnt:tnt_burning", {
2014-07-14 00:08:03 +02:00
tiles = {
{
name = "tnt_top_burning_animated.png",
animation = {
type = "vertical_frames",
aspect_w = 16,
aspect_h = 16,
length = 1,
}
},
"tnt_bottom.png", "tnt_side.png"},
2014-04-19 19:43:53 +02:00
light_source = 5,
drop = "",
sounds = default.node_sound_wood_defaults(),
2014-07-14 00:08:03 +02:00
on_timer = boom,
-- unaffected by explosions
on_blast = function() end,
2014-04-19 19:43:53 +02:00
})
minetest.register_node("tnt:boom", {
drawtype = "plantlike",
tiles = {"tnt_boom.png"},
2014-12-07 15:17:09 +01:00
light_source = default.LIGHT_MAX,
2014-04-19 19:43:53 +02:00
walkable = false,
drop = "",
groups = {dig_immediate=3},
2014-07-14 00:08:03 +02:00
on_timer = function(pos, elapsed)
minetest.remove_node(pos)
end,
-- unaffected by explosions
on_blast = function() end,
2014-04-19 19:43:53 +02:00
})
minetest.register_node("tnt:gunpowder", {
description = "Gun Powder",
drawtype = "raillike",
paramtype = "light",
sunlight_propagates = true,
walkable = false,
tiles = {"tnt_gunpowder.png",},
inventory_image = "tnt_gunpowder_inventory.png",
wield_image = "tnt_gunpowder_inventory.png",
selection_box = {
type = "fixed",
fixed = {-1/2, -1/2, -1/2, 1/2, -1/2+1/16, 1/2},
},
groups = {dig_immediate=2,attached_node=1},
sounds = default.node_sound_leaves_defaults(),
on_punch = function(pos, node, puncher)
if puncher:get_wielded_item():get_name() == "default:torch" then
burn(pos)
end
end,
on_blast = function(pos, intensity)
burn(pos)
end,
2014-04-19 19:43:53 +02:00
})
minetest.register_node("tnt:gunpowder_burning", {
drawtype = "raillike",
paramtype = "light",
sunlight_propagates = true,
walkable = false,
light_source = 5,
2014-07-14 00:08:03 +02:00
tiles = {{
name = "tnt_gunpowder_burning_animated.png",
animation = {
type = "vertical_frames",
aspect_w = 16,
aspect_h = 16,
length = 1,
}
}},
2014-04-19 19:43:53 +02:00
selection_box = {
type = "fixed",
fixed = {-1/2, -1/2, -1/2, 1/2, -1/2+1/16, 1/2},
},
drop = "",
groups = {dig_immediate=2,attached_node=1},
sounds = default.node_sound_leaves_defaults(),
2014-07-14 00:08:03 +02:00
on_timer = function(pos, elapsed)
for dx = -1, 1 do
for dz = -1, 1 do
for dy = -1, 1 do
if not (dx == 0 and dz == 0) then
burn({
x = pos.x + dx,
y = pos.y + dy,
z = pos.z + dz,
})
end
end
end
end
minetest.remove_node(pos)
end,
-- unaffected by explosions
on_blast = function() end,
2014-04-19 19:43:53 +02:00
})
minetest.register_abm({
nodenames = {"tnt:tnt", "tnt:gunpowder"},
neighbors = {"fire:basic_flame", "default:lava_source", "default:lava_flowing"},
2014-07-14 00:08:03 +02:00
interval = 1,
chance = 1,
action = burn,
2014-04-19 19:43:53 +02:00
})
minetest.register_craft({
output = "tnt:gunpowder",
type = "shapeless",
recipe = {"default:coal_lump", "default:gravel"}
})
minetest.register_craft({
output = "tnt:tnt",
recipe = {
2014-07-14 00:08:03 +02:00
{"", "group:wood", ""},
2014-04-19 19:43:53 +02:00
{"group:wood", "tnt:gunpowder", "group:wood"},
2014-07-14 00:08:03 +02:00
{"", "group:wood", ""}
2014-04-19 19:43:53 +02:00
}
})
if minetest.setting_get("log_mods") then
2014-07-14 00:08:03 +02:00
minetest.debug("[TNT] Loaded!")
2014-04-19 19:43:53 +02:00
end
2014-07-14 00:08:03 +02:00