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