minetest_game/mods/tnt/init.lua

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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
local radius_max = tonumber(minetest.setting_get("tnt_radius_max") or 25)
local eject_drops = function(pos, stack)
local obj = minetest.add_item(pos, stack)
if obj == nil then
return
end
obj:get_luaentity().collect = true
obj:setacceleration({x=0, y=-10, z=0})
obj:setvelocity({x=math.random(0,6)-3, y=10, z=math.random(0,6)-3})
end
local add_drop = function(drops, pos, item)
if loss_prob[item] ~= nil then
if math.random(1,loss_prob[item]) == 1 then
return
end
end
if drops[item] == nil then
drops[item] = ItemStack(item)
else
drops[item]:add_item(item)
end
if drops[item]:get_free_space() == 0 then
stack = drops[item]
eject_drops(pos, stack)
drops[item] = nil
end
end
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local function destroy(drops, pos, last, fast)
if minetest.is_protected(pos, "") then
return
end
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local nodename = minetest.get_node(pos).name
if nodename ~= "air" then
minetest.remove_node(pos, (fast and 1 or 0))
if last then
nodeupdate(pos)
end
if minetest.registered_nodes[nodename].groups.flammable ~= nil then
minetest.set_node(pos, {name="fire:basic_flame"}, (fast and 2 or 0))
return
end
local drop = minetest.get_node_drops(nodename, "")
for _,item in ipairs(drop) do
if type(item) == "string" then
add_drop(drops, pos, item)
else
for i=1,item:get_count() do
add_drop(drops, pos, item:get_name())
end
end
end
end
end
boom = function(pos, time)
minetest.after(time, function(pos)
if minetest.get_node(pos).name ~= "tnt:tnt_burning" then
return
end
minetest.sound_play("tnt_explode", {pos=pos, gain=1.5, max_hear_distance=2*64})
minetest.set_node(pos, {name="tnt:boom"})
minetest.after(0.5, function(pos)
minetest.remove_node(pos)
end, {x=pos.x, y=pos.y, z=pos.z})
local radius = 2
local drops = {}
local list = {}
local dr = 0
local tnts = 1
local destroyed = 0
while dr<radius do
dr=dr+1
for dx=-dr,dr,dr*2 do
for dy=-dr,dr,1 do
for dz=-dr,dr,1 do
table.insert(list, {x=dx, y=dy, z=dz})
end
end
end
for dy=-dr,dr,dr*2 do
for dx=-dr+1,dr-1,1 do
for dz=-dr,dr,1 do
table.insert(list, {x=dx, y=dy, z=dz})
end
end
end
for dz=-dr,dr,dr*2 do
for dx=-dr+1,dr-1,1 do
for dy=-dr+1,dr-1,1 do
table.insert(list, {x=dx, y=dy, z=dz})
end
end
end
for _,p in ipairs(list) do
local np = {x=pos.x+p.x, y=pos.y+p.y, z=pos.z+p.z}
local node = minetest.get_node(np)
if node.name == "air" then
elseif node.name == "tnt:tnt" or node.name == "tnt:tnt_burning" then
if radius < radius_max then
if radius <= 5 then
radius = radius + 1
elseif radius <= 10 then
radius = radius + 0.5
else
radius = radius + 0.3
end
minetest.remove_node(np, 2)
tnts = tnts + 1
else
minetest.set_node(np, {name="tnt:tnt_burning"})
boom(np, 1)
end
elseif node.name == "fire:basic_flame"
--or string.find(node.name, "default:water_")
--or string.find(node.name, "default:lava_")
or node.name == "tnt:boom"
then
else
if math.abs(p.x)<2 and math.abs(p.y)<2 and math.abs(p.z)<2 then
destroy(drops, np, dr == radius, radius > 7)
destroyed = destroyed + 1
else
if math.random(1,5) <= 4 then
destroy(drops, np, dr == radius, radius > 7)
destroyed = destroyed + 1
end
end
end
end
end
local objects = minetest.get_objects_inside_radius(pos, radius*2)
for _,obj in ipairs(objects) do
--if obj:is_player() or (obj:get_luaentity() and obj:get_luaentity().name ~= "__builtin:item") then
local p = obj:getpos()
local v = obj:getvelocity()
local vec = {x=p.x-pos.x, y=p.y-pos.y, z=p.z-pos.z}
local dist = (vec.x^2+vec.y^2+vec.z^2)^0.5
local damage = ((radius*20)/dist)
--print("DMG dist="..dist.." damage="..damage)
if obj:is_player() or (obj:get_luaentity() and obj:get_luaentity().name ~= "__builtin:item") then
obj:punch(obj, 1.0, {
full_punch_interval=1.0,
damage_groups={fleshy=damage},
}, vec)
end
if v ~= nil then
--obj:setvelocity({x=(p.x - pos.x) + (radius / 4) + v.x, y=(p.y - pos.y) + (radius / 2) + v.y, z=(p.z - pos.z) + (radius / 4) + v.z})
obj:setvelocity({x=(p.x - pos.x) + (radius / 2) + v.x, y=(p.y - pos.y) + radius + v.y, z=(p.z - pos.z) + (radius / 2) + v.z})
end
--end
end
print("TNT exploded=" .. tnts .. " radius=" .. radius .. " destroyed="..destroyed)
for _,stack in pairs(drops) do
eject_drops(pos, stack)
end
local radiusp = radius+1
minetest.add_particlespawner(
100, --amount
0.1, --time
{x=pos.x-radiusp, y=pos.y-radiusp, z=pos.z-radiusp}, --minpos
{x=pos.x+radiusp, y=pos.y+radiusp, z=pos.z+radiusp}, --maxpos
{x=-0, y=-0, z=-0}, --minvel
{x=0, y=0, z=0}, --maxvel
{x=-0.5,y=5,z=-0.5}, --minacc
{x=0.5,y=5,z=0.5}, --maxacc
0.1, --minexptime
1, --maxexptime
8, --minsize
15, --maxsize
false, --collisiondetection
"tnt_smoke.png" --texture
)
end, pos)
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"})
boom(pos, 4)
end
end,
mesecons = {
effector = {
action_on = function(pos, node)
minetest.set_node(pos, {name="tnt:tnt_burning"})
boom(pos, 0)
end
},
},
})
minetest.register_node("tnt:tnt_burning", {
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"},
light_source = 5,
drop = "",
sounds = default.node_sound_wood_defaults(),
})
minetest.register_node("tnt:boom", {
drawtype = "plantlike",
tiles = {"tnt_boom.png"},
light_source = LIGHT_MAX,
walkable = false,
drop = "",
groups = {dig_immediate=3},
})
burn = function(pos)
if minetest.get_node(pos).name == "tnt:tnt" then
minetest.sound_play("tnt_ignite", {pos=pos})
minetest.set_node(pos, {name="tnt:tnt_burning"})
boom(pos, 1)
return
end
if minetest.get_node(pos).name ~= "tnt:gunpowder" then
return
end
minetest.sound_play("tnt_gunpowder_burning", {pos=pos, gain=2})
minetest.set_node(pos, {name="tnt:gunpowder_burning"})
minetest.after(1, function(pos)
if minetest.get_node(pos).name ~= "tnt:gunpowder_burning" then
return
end
minetest.after(0.5, function(pos)
minetest.remove_node(pos)
end, {x=pos.x, y=pos.y, z=pos.z})
for dx=-1,1 do
for dz=-1,1 do
for dy=-1,1 do
pos.x = pos.x+dx
pos.y = pos.y+dy
pos.z = pos.z+dz
if not (math.abs(dx) == 1 and math.abs(dz) == 1) then
if dy == 0 then
burn({x=pos.x, y=pos.y, z=pos.z})
else
if math.abs(dx) == 1 or math.abs(dz) == 1 then
burn({x=pos.x, y=pos.y, z=pos.z})
end
end
end
pos.x = pos.x-dx
pos.y = pos.y-dy
pos.z = pos.z-dz
end
end
end
end, pos)
end
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,
})
minetest.register_node("tnt:gunpowder_burning", {
drawtype = "raillike",
paramtype = "light",
sunlight_propagates = true,
walkable = false,
light_source = 5,
tiles = {{name="tnt_gunpowder_burning_animated.png", animation={type="vertical_frames", aspect_w=16, aspect_h=16, length=1}}},
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(),
})
minetest.register_abm({
nodenames = {"tnt:tnt", "tnt:gunpowder"},
neighbors = {"fire:basic_flame", "default:lava_source", "default:lava_flowing"},
interval = 2,
chance = 10,
action = function(pos, node)
if node.name == "tnt:tnt" then
minetest.set_node(pos, {name="tnt:tnt_burning"})
boom({x=pos.x, y=pos.y, z=pos.z}, 0)
else
burn(pos)
end
end
})
minetest.register_craft({
output = "tnt:gunpowder",
type = "shapeless",
recipe = {"default:coal_lump", "default:gravel"}
})
minetest.register_craft({
output = "tnt:tnt",
recipe = {
{"", "group:wood", ""},
{"group:wood", "tnt:gunpowder", "group:wood"},
{"", "group:wood", ""}
}
})
if minetest.setting_get("log_mods") then
minetest.log("action", "tnt loaded")
end