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@@ -1,197 +1,222 @@
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+
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+-- Default to enabled in singleplayer and disabled in multiplayer
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+local singleplayer = minetest.is_singleplayer()
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+local setting = minetest.setting_getbool("enable_tnt")
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+if (not singleplayer and setting ~= false) or
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+ (singleplayer and setting ~= true) then
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+ return
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+end
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+
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-- 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 radius = tonumber(minetest.setting_get("tnt_radius") or 3)
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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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-
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- if obj == nil then
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- return
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+-- Fill a list with data for content IDs, after all nodes are registered
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+local cid_data = {}
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+minetest.after(0, function()
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+ for name, def in pairs(minetest.registered_nodes) do
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+ cid_data[minetest.get_content_id(name)] = {
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+ name = name,
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+ drops = def.drops,
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+ flammable = def.groups.flammable,
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+ }
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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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+
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+local function rand_pos(center, pos, radius)
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+ pos.x = center.x + math.random(-radius, radius)
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+ pos.z = center.z + math.random(-radius, radius)
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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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+local function eject_drops(drops, pos, radius)
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+ local drop_pos = vector.new(pos)
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+ for _, item in pairs(drops) do
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+ local count = item:get_count()
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+ local max = item:get_stack_max()
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+ if count > max then
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+ item:set_count(max)
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+ end
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+ while count > 0 do
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+ if count < max then
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+ item:set_count(count)
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+ end
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+ rand_pos(pos, drop_pos, radius)
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+ local obj = minetest.add_item(drop_pos, item)
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+ if obj then
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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(-3, 3), y=10,
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+ z=math.random(-3, 3)})
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+ end
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+ count = count - max
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end
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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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+local function add_drop(drops, item)
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+ item = ItemStack(item)
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+ local name = item:get_name()
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+ if loss_prob[name] ~= nil and math.random(1, loss_prob[name]) == 1 then
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+ return
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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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+ local drop = drops[name]
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+ if drop == nil then
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+ drops[name] = item
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+ else
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+ drop:set_count(drop:get_count() + item:get_count())
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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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+local fire_node = {name="fire:basic_flame"}
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+
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+local function destroy(drops, pos, cid)
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if minetest.is_protected(pos, "") then
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return
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end
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-
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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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+ local def = cid_data[cid]
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+ if def and def.flammable then
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+ minetest.set_node(pos, fire_node)
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+ else
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+ minetest.remove_node(pos)
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+ if def then
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+ local node_drops = minetest.get_node_drops(def.name, "")
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+ for _, item in ipairs(node_drops) do
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+ add_drop(drops, item)
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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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+
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+local function calc_velocity(pos1, pos2, old_vel, power)
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+ local vel = vector.direction(pos1, pos2)
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+ vel = vector.normalize(vel)
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+ vel = vector.multiply(vel, power)
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+
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+ -- Divide by distance
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+ local dist = vector.distance(pos1, pos2)
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+ dist = math.max(dist, 1)
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+ vel = vector.divide(vel, dist)
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+
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+ -- Add old velocity
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+ vel = vector.add(vel, old_vel)
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+ return vel
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+end
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+
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+local function entity_physics(pos, radius)
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+ -- Make the damage radius larger than the destruction radius
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+ radius = radius * 2
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+ local objs = minetest.get_objects_inside_radius(pos, radius)
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+ for _, obj in pairs(objs) do
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+ local obj_pos = obj:getpos()
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+ local obj_vel = obj:getvelocity()
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+ local dist = math.max(1, vector.distance(pos, obj_pos))
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+
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+ if obj_vel ~= nil then
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+ obj:setvelocity(calc_velocity(pos, obj_pos,
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+ obj_vel, radius * 10))
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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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-
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-
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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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+
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+ local damage = (4 / dist) * radius
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+ obj:set_hp(obj:get_hp() - damage)
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+ end
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+end
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+
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+local function add_effects(pos, radius)
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+ minetest.add_particlespawner({
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+ amount = 128,
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+ time = 1,
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+ minpos = vector.subtract(pos, radius / 2),
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+ maxpos = vector.add(pos, radius / 2),
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+ minvel = {x=-20, y=-20, z=-20},
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+ maxvel = {x=20, y=20, z=20},
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+ minacc = vector.new(),
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+ maxacc = vector.new(),
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+ minexptime = 1,
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+ maxexptime = 3,
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+ minsize = 8,
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+ maxsize = 16,
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+ texture = "tnt_smoke.png",
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+ })
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+end
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+
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+local function burn(pos)
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+ local name = minetest.get_node(pos).name
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+ if 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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+ minetest.get_node_timer(pos):start(1)
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+ elseif name == "tnt:gunpowder" then
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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.get_node_timer(pos):start(1)
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+ end
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+end
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+
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+local function explode(pos, radius)
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+ local pos = vector.round(pos)
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+ local vm = VoxelManip()
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+ local pr = PseudoRandom(os.time())
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+ local p1 = vector.subtract(pos, radius)
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+ local p2 = vector.add(pos, radius)
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+ local minp, maxp = vm:read_from_map(p1, p2)
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+ local a = VoxelArea:new({MinEdge = minp, MaxEdge = maxp})
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+ local data = vm:get_data()
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+
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+ local drops = {}
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+ local p = {}
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+
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+ local c_air = minetest.get_content_id("air")
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+ local c_tnt = minetest.get_content_id("tnt:tnt")
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+ local c_tnt_burning = minetest.get_content_id("tnt:tnt_burning")
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+ local c_gunpowder = minetest.get_content_id("tnt:gunpowder")
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+ local c_gunpowder_burning = minetest.get_content_id("tnt:gunpowder_burning")
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+ local c_boom = minetest.get_content_id("tnt:boom")
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+ local c_fire = minetest.get_content_id("fire:basic_flame")
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+
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+ for z = -radius, radius do
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+ for y = -radius, radius do
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+ local vi = a:index(pos.x + (-radius), pos.y + y, pos.z + z)
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+ for x = -radius, radius do
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+ if (x * x) + (y * y) + (z * z) <=
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+ (radius * radius) + pr:next(-radius, radius) then
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+ local cid = data[vi]
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+ p.x = pos.x + x
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+ p.y = pos.y + y
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+ p.z = pos.z + z
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+ if cid == c_tnt or cid == c_gunpowder then
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+ burn(p)
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+ elseif cid ~= c_tnt_burning and
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+ cid ~= c_gunpowder_burning and
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+ cid ~= c_air and
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+ cid ~= c_fire and
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+ cid ~= c_boom then
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+ destroy(drops, p, cid)
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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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-
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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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-
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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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+ vi = vi + 1
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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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+ return drops
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+end
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- print("TNT exploded=" .. tnts .. " radius=" .. radius .. " destroyed="..destroyed)
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+local function boom(pos)
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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.get_node_timer(pos):start(0.5)
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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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+ local drops = explode(pos, radius)
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+ entity_physics(pos, radius)
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+ eject_drops(drops, pos, radius)
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+ add_effects(pos, radius)
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end
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minetest.register_node("tnt:tnt", {
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@@ -199,30 +224,32 @@ minetest.register_node("tnt: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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-
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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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+ minetest.get_node_timer(pos):start(4)
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end
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end,
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-
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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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+ mesecons = {effector = {action_on = boom}},
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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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+ tiles = {
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+ {
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+ name = "tnt_top_burning_animated.png",
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+ animation = {
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+ type = "vertical_frames",
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+ aspect_w = 16,
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+ aspect_h = 16,
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+ length = 1,
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+ }
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+ },
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+ "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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+ on_timer = boom,
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})
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minetest.register_node("tnt:boom", {
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@@ -232,54 +259,11 @@ minetest.register_node("tnt:boom", {
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walkable = false,
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drop = "",
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groups = {dig_immediate=3},
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+ on_timer = function(pos, elapsed)
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+ minetest.remove_node(pos)
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+ end,
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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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-
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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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-
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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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-
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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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-
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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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@@ -309,7 +293,15 @@ minetest.register_node("tnt:gunpowder_burning", {
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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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+ tiles = {{
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+ name = "tnt_gunpowder_burning_animated.png",
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+ animation = {
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+ type = "vertical_frames",
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+ aspect_w = 16,
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+ aspect_h = 16,
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+ length = 1,
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+ }
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+ }},
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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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@@ -317,21 +309,30 @@ minetest.register_node("tnt:gunpowder_burning", {
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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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+ on_timer = function(pos, elapsed)
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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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+ if not (dx == 0 and dz == 0) then
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+ burn({
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+ x = pos.x + dx,
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+ y = pos.y + dy,
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+ z = pos.z + dz,
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+ })
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+ end
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+ end
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+ end
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+ end
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+ minetest.remove_node(pos)
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+ end
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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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+ interval = 1,
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+ chance = 1,
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+ action = burn,
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})
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minetest.register_craft({
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@@ -343,12 +344,13 @@ minetest.register_craft({
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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", ""},
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{"group:wood", "tnt:gunpowder", "group:wood"},
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- {"", "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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+ minetest.debug("[TNT] Loaded!")
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end
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+
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