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-rw-r--r--data/mods/experimental/init.lua540
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diff --git a/data/mods/experimental/init.lua b/data/mods/experimental/init.lua
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+--
+-- Experimental things
+--
+
+-- An example furnace-thing implemented in Lua
+
+minetest.register_node("luafurnace", {
+ tile_images = {"lava.png", "furnace_side.png", "furnace_side.png",
+ "furnace_side.png", "furnace_side.png", "furnace_front.png"},
+ --inventory_image = "furnace_front.png",
+ inventory_image = inventorycube("furnace_front.png"),
+ paramtype = "facedir_simple",
+ metadata_name = "generic",
+ material = digprop_stonelike(3.0),
+})
+
+minetest.register_on_placenode(function(pos, newnode, placer)
+ if newnode.name == "luafurnace" then
+ print("get_meta");
+ local meta = minetest.env:get_meta(pos)
+ print("inventory_set_list");
+ meta:inventory_set_list("fuel", {""})
+ print("inventory_set_list");
+ meta:inventory_set_list("src", {""})
+ print("inventory_set_list");
+ meta:inventory_set_list("dst", {"","","",""})
+ print("set_inventory_draw_spec");
+ meta:set_inventory_draw_spec(
+ "invsize[8,9;]"
+ .."list[current_name;fuel;2,3;1,1;]"
+ .."list[current_name;src;2,1;1,1;]"
+ .."list[current_name;dst;5,1;2,2;]"
+ .."list[current_player;main;0,5;8,4;]"
+ )
+
+ local total_cooked = 0;
+ print("set_string")
+ meta:set_string("total_cooked", total_cooked)
+ print("set_infotext");
+ meta:set_infotext("Lua Furnace: total cooked: "..total_cooked)
+ end
+end)
+
+function stackstring_take_item(stackstring)
+ if stackstring == nil then
+ return '', nil
+ end
+ local stacktype = nil
+ stacktype = string.match(stackstring,
+ '([%a%d]+Item[%a%d]*)')
+ if stacktype == "NodeItem" or stacktype == "CraftItem" then
+ local itemtype = nil
+ local itemname = nil
+ local itemcount = nil
+ itemtype, itemname, itemcount = string.match(stackstring,
+ '([%a%d]+Item[%a%d]*) "([^"]*)" (%d+)')
+ itemcount = tonumber(itemcount)
+ if itemcount == 0 then
+ return '', nil
+ elseif itemcount == 1 then
+ return '', {type=itemtype, name=itemname}
+ else
+ return itemtype.." \""..itemname.."\" "..(itemcount-1),
+ {type=itemtype, name=itemname}
+ end
+ elseif stacktype == "ToolItem" then
+ local itemtype = nil
+ local itemname = nil
+ local itemwear = nil
+ itemtype, itemname, itemwear = string.match(stackstring,
+ '([%a%d]+Item[%a%d]*) "([^"]*)" (%d+)')
+ itemwear = tonumber(itemwear)
+ return '', {type=itemtype, name=itemname, wear=itemwear}
+ end
+end
+
+function stackstring_put_item(stackstring, item)
+ if item == nil then
+ return stackstring, false
+ end
+ stackstring = stackstring or ''
+ local stacktype = nil
+ stacktype = string.match(stackstring,
+ '([%a%d]+Item[%a%d]*)')
+ stacktype = stacktype or ''
+ if stacktype ~= '' and stacktype ~= item.type then
+ return stackstring, false
+ end
+ if item.type == "NodeItem" or item.type == "CraftItem" then
+ local itemtype = nil
+ local itemname = nil
+ local itemcount = nil
+ itemtype, itemname, itemcount = string.match(stackstring,
+ '([%a%d]+Item[%a%d]*) "([^"]*)" (%d+)')
+ itemtype = itemtype or item.type
+ itemname = itemname or item.name
+ if itemcount == nil then
+ itemcount = 0
+ end
+ itemcount = itemcount + 1
+ return itemtype.." \""..itemname.."\" "..itemcount, true
+ elseif item.type == "ToolItem" then
+ if stacktype ~= nil then
+ return stackstring, false
+ end
+ local itemtype = nil
+ local itemname = nil
+ local itemwear = nil
+ itemtype, itemname, itemwear = string.match(stackstring,
+ '([%a%d]+Item[%a%d]*) "([^"]*)" (%d+)')
+ itemwear = tonumber(itemwear)
+ return itemtype.." \""..itemname.."\" "..itemwear, true
+ end
+ return stackstring, false
+end
+
+function stackstring_put_stackstring(stackstring, src)
+ while src ~= '' do
+ --print("src="..dump(src))
+ src, item = stackstring_take_item(src)
+ --print("src="..dump(src).." item="..dump(item))
+ local success
+ stackstring, success = stackstring_put_item(stackstring, item)
+ if not success then
+ return stackstring, false
+ end
+ end
+ return stackstring, true
+end
+
+function test_stack()
+ local stack
+ local item
+ local success
+
+ stack, item = stackstring_take_item('NodeItem "TNT" 3')
+ assert(stack == 'NodeItem "TNT" 2')
+ assert(item.type == 'NodeItem')
+ assert(item.name == 'TNT')
+
+ stack, item = stackstring_take_item('CraftItem "with spaces" 2')
+ assert(stack == 'CraftItem "with spaces" 1')
+ assert(item.type == 'CraftItem')
+ assert(item.name == 'with spaces')
+
+ stack, item = stackstring_take_item('CraftItem "with spaces" 1')
+ assert(stack == '')
+ assert(item.type == 'CraftItem')
+ assert(item.name == 'with spaces')
+
+ stack, item = stackstring_take_item('CraftItem "s8df2kj3" 0')
+ assert(stack == '')
+ assert(item == nil)
+
+ stack, item = stackstring_take_item('ToolItem "With Spaces" 32487')
+ assert(stack == '')
+ assert(item.type == 'ToolItem')
+ assert(item.name == 'With Spaces')
+ assert(item.wear == 32487)
+
+ stack, success = stackstring_put_item('NodeItem "With Spaces" 40',
+ {type='NodeItem', name='With Spaces'})
+ assert(stack == 'NodeItem "With Spaces" 41')
+ assert(success == true)
+
+ stack, success = stackstring_put_item('CraftItem "With Spaces" 40',
+ {type='CraftItem', name='With Spaces'})
+ assert(stack == 'CraftItem "With Spaces" 41')
+ assert(success == true)
+
+ stack, success = stackstring_put_item('ToolItem "With Spaces" 32487',
+ {type='ToolItem', name='With Spaces'})
+ assert(stack == 'ToolItem "With Spaces" 32487')
+ assert(success == false)
+
+ stack, success = stackstring_put_item('NodeItem "With Spaces" 40',
+ {type='ToolItem', name='With Spaces'})
+ assert(stack == 'NodeItem "With Spaces" 40')
+ assert(success == false)
+
+ assert(stackstring_put_stackstring('NodeItem "With Spaces" 2',
+ 'NodeItem "With Spaces" 1') == 'NodeItem "With Spaces" 3')
+end
+test_stack()
+
+minetest.register_abm({
+ nodenames = {"luafurnace"},
+ interval = 1.0,
+ chance = 1,
+ action = function(pos, node, active_object_count, active_object_count_wider)
+ local meta = minetest.env:get_meta(pos)
+ local fuellist = meta:inventory_get_list("fuel")
+ local srclist = meta:inventory_get_list("src")
+ local dstlist = meta:inventory_get_list("dst")
+ if fuellist == nil or srclist == nil or dstlist == nil then
+ return
+ end
+ _, srcitem = stackstring_take_item(srclist[1])
+ _, fuelitem = stackstring_take_item(fuellist[1])
+ if not srcitem or not fuelitem then return end
+ if fuelitem.type == "NodeItem" then
+ local prop = minetest.registered_nodes[fuelitem.name]
+ if prop == nil then return end
+ if prop.furnace_burntime < 0 then return end
+ else
+ return
+ end
+ local resultstack = nil
+ if srcitem.type == "NodeItem" then
+ local prop = minetest.registered_nodes[srcitem.name]
+ if prop == nil then return end
+ if prop.cookresult_item == "" then return end
+ resultstack = prop.cookresult_item
+ else
+ return
+ end
+
+ if resultstack == nil then
+ return
+ end
+
+ dstlist[1], success = stackstring_put_stackstring(dstlist[1], resultstack)
+ if not success then
+ return
+ end
+
+ fuellist[1], _ = stackstring_take_item(fuellist[1])
+ srclist[1], _ = stackstring_take_item(srclist[1])
+
+ meta:inventory_set_list("fuel", fuellist)
+ meta:inventory_set_list("src", srclist)
+ meta:inventory_set_list("dst", dstlist)
+
+ local total_cooked = meta:get_string("total_cooked")
+ total_cooked = tonumber(total_cooked) + 1
+ meta:set_string("total_cooked", total_cooked)
+ meta:set_infotext("Lua Furnace: total cooked: "..total_cooked)
+ end,
+})
+
+minetest.register_craft({
+ output = 'NodeItem "luafurnace" 1',
+ recipe = {
+ {'NodeItem "cobble"', 'NodeItem "cobble"', 'NodeItem "cobble"'},
+ {'NodeItem "cobble"', 'NodeItem "cobble"', 'NodeItem "cobble"'},
+ {'NodeItem "cobble"', 'NodeItem "cobble"', 'NodeItem "cobble"'},
+ }
+})
+
+--
+-- Random stuff
+--
+
+--[[
+minetest.register_tool("horribletool", {
+ image = "lava.png",
+ basetime = 2.0
+ dt_weight = 0.2
+ dt_crackiness = 0.2
+ dt_crumbliness = 0.2
+ dt_cuttability = 0.2
+ basedurability = 50
+ dd_weight = -5
+ dd_crackiness = -5
+ dd_crumbliness = -5
+ dd_cuttability = -5
+})
+--]]
+
+minetest.register_craft({
+ output = 'NodeItem "somenode" 4',
+ recipe = {
+ {'CraftItem "Stick" 1'},
+ }
+})
+
+minetest.register_node("somenode", {
+ tile_images = {"lava.png", "mese.png", "stone.png", "grass.png", "cobble.png", "tree_top.png"},
+ inventory_image = "treeprop.png",
+ material = {
+ diggability = "normal",
+ weight = 0,
+ crackiness = 0,
+ crumbliness = 0,
+ cuttability = 0,
+ flammability = 0
+ },
+ metadata_name = "chest",
+})
+
+--
+-- TNT (not functional)
+--
+
+minetest.register_craft({
+ output = 'NodeItem "TNT" 4',
+ recipe = {
+ {'NodeItem "wood" 1'},
+ {'CraftItem "lump_of_coal" 1'},
+ {'NodeItem "wood" 1'}
+ }
+})
+
+minetest.register_node("TNT", {
+ tile_images = {"tnt_top.png", "tnt_bottom.png", "tnt_side.png", "tnt_side.png", "tnt_side.png", "tnt_side.png"},
+ inventory_image = "tnt_side.png",
+ dug_item = '', -- Get nothing
+ material = {
+ diggability = "not",
+ },
+})
+
+local TNT = {
+ -- Static definition
+ physical = true, -- Collides with things
+ -- weight = 5,
+ collisionbox = {-0.5,-0.5,-0.5, 0.5,0.5,0.5},
+ visual = "cube",
+ textures = {"tnt_top.png","tnt_bottom.png","tnt_side.png","tnt_side.png","tnt_side.png","tnt_side.png"},
+ -- Initial value for our timer
+ timer = 0,
+ -- Number of punches required to defuse
+ health = 1,
+ blinktimer = 0,
+ blinkstatus = true,
+}
+
+-- Called when a TNT object is created
+function TNT:on_activate(staticdata)
+ print("TNT:on_activate()")
+ self.object:setvelocity({x=0, y=4, z=0})
+ self.object:setacceleration({x=0, y=-10, z=0})
+ self.object:settexturemod("^[brighten")
+end
+
+-- Called periodically
+function TNT:on_step(dtime)
+ --print("TNT:on_step()")
+ self.timer = self.timer + dtime
+ self.blinktimer = self.blinktimer + dtime
+ if self.blinktimer > 0.5 then
+ self.blinktimer = self.blinktimer - 0.5
+ if self.blinkstatus then
+ self.object:settexturemod("")
+ else
+ self.object:settexturemod("^[brighten")
+ end
+ self.blinkstatus = not self.blinkstatus
+ end
+end
+
+-- Called when object is punched
+function TNT:on_punch(hitter)
+ print("TNT:on_punch()")
+ self.health = self.health - 1
+ if self.health <= 0 then
+ self.object:remove()
+ hitter:add_to_inventory("NodeItem TNT 1")
+ hitter:set_hp(hitter:get_hp() - 1)
+ end
+end
+
+-- Called when object is right-clicked
+function TNT:on_rightclick(clicker)
+ --pos = self.object:getpos()
+ --pos = {x=pos.x, y=pos.y+0.1, z=pos.z}
+ --self.object:moveto(pos, false)
+end
+
+print("TNT dump: "..dump(TNT))
+
+print("Registering TNT");
+minetest.register_entity("TNT", TNT)
+
+--
+-- A test entity for testing animated and yaw-modulated sprites
+--
+
+minetest.register_entity("testentity", {
+ -- Static definition
+ physical = true, -- Collides with things
+ -- weight = 5,
+ collisionbox = {-0.7,-1.35,-0.7, 0.7,1.0,0.7},
+ --collisionbox = {-0.5,-0.5,-0.5, 0.5,0.5,0.5},
+ visual = "sprite",
+ visual_size = {x=2, y=3},
+ textures = {"dungeon_master.png^[makealpha:128,0,0^[makealpha:128,128,0"},
+ spritediv = {x=6, y=5},
+ initial_sprite_basepos = {x=0, y=0},
+
+ on_activate = function(self, staticdata)
+ print("testentity.on_activate")
+ self.object:setsprite({x=0,y=0}, 1, 0, true)
+ --self.object:setsprite({x=0,y=0}, 4, 0.3, true)
+
+ -- Set gravity
+ self.object:setacceleration({x=0, y=-10, z=0})
+ -- Jump a bit upwards
+ self.object:setvelocity({x=0, y=10, z=0})
+ end,
+
+ on_punch = function(self, hitter)
+ self.object:remove()
+ hitter:add_to_inventory('CraftItem testobject1 1')
+ end,
+})
+
+--
+-- More random stuff
+--
+
+minetest.register_on_respawnplayer(function(player)
+ print("on_respawnplayer")
+ -- player:setpos({x=0, y=30, z=0})
+ -- return true
+end)
+
+minetest.register_on_generated(function(minp, maxp)
+ --print("on_generated: minp="..dump(minp).." maxp="..dump(maxp))
+ --cp = {x=(minp.x+maxp.x)/2, y=(minp.y+maxp.y)/2, z=(minp.z+maxp.z)/2}
+ --minetest.env:add_node(cp, {name="sand"})
+end)
+
+-- Example setting get
+print("setting max_users = " .. dump(minetest.setting_get("max_users")))
+print("setting asdf = " .. dump(minetest.setting_get("asdf")))
+
+minetest.register_on_chat_message(function(name, message)
+ print("on_chat_message: name="..dump(name).." message="..dump(message))
+ local cmd = "/testcommand"
+ if message:sub(0, #cmd) == cmd then
+ print(cmd.." invoked")
+ return true
+ end
+ local cmd = "/help"
+ if message:sub(0, #cmd) == cmd then
+ print("script-overridden help command")
+ minetest.chat_send_all("script-overridden help command")
+ return true
+ end
+end)
+
+-- Grow papyrus on TNT every 10 seconds
+--[[minetest.register_abm({
+ nodenames = {"TNT"},
+ interval = 10.0,
+ chance = 1,
+ action = function(pos, node, active_object_count, active_object_count_wider)
+ print("TNT ABM action")
+ pos.y = pos.y + 1
+ minetest.env:add_node(pos, {name="papyrus"})
+ end,
+})]]
+
+-- Replace texts of alls signs with "foo" every 10 seconds
+--[[minetest.register_abm({
+ nodenames = {"sign_wall"},
+ interval = 10.0,
+ chance = 1,
+ action = function(pos, node, active_object_count, active_object_count_wider)
+ print("ABM: Sign text changed")
+ local meta = minetest.env:get_meta(pos)
+ meta:set_text("foo")
+ end,
+})]]
+
+--[[local ncpos = nil
+local ncq = 1
+local ncstuff = {
+ {2, 1, 0, 3}, {3, 0, 1, 2}, {4, -1, 0, 1}, {5, -1, 0, 1}, {6, 0, -1, 0},
+ {7, 0, -1, 0}, {8, 1, 0, 3}, {9, 1, 0, 3}, {10, 1, 0, 3}, {11, 0, 1, 2},
+ {12, 0, 1, 2}, {13, 0, 1, 2}, {14, -1, 0, 1}, {15, -1, 0, 1}, {16, -1, 0, 1},
+ {17, -1, 0, 1}, {18, 0, -1, 0}, {19, 0, -1, 0}, {20, 0, -1, 0}, {21, 0, -1, 0},
+ {22, 1, 0, 3}, {23, 1, 0, 3}, {24, 1, 0, 3}, {25, 1, 0, 3}, {10, 0, 1, 2}
+}
+local ncold = {}
+local nctime = nil
+
+minetest.register_abm({
+ nodenames = {"dirt_with_grass"},
+ interval = 100000.0,
+ chance = 1,
+ action = function(pos, node, active_object_count, active_object_count_wider)
+ if ncpos ~= nil then
+ return
+ end
+
+ if pos.x % 16 ~= 8 or pos.z % 16 ~= 8 then
+ return
+ end
+
+ pos.y = pos.y + 1
+ n = minetest.env:get_node(pos)
+ print(dump(n))
+ if n.name ~= "air" then
+ return
+ end
+
+ pos.y = pos.y + 2
+ ncpos = pos
+ nctime = os.clock()
+ minetest.env:add_node(ncpos, {name="nyancat"})
+ end
+})
+
+minetest.register_abm({
+ nodenames = {"nyancat"},
+ interval = 1.0,
+ chance = 1,
+ action = function(pos, node, active_object_count, active_object_count_wider)
+ if ncpos == nil then
+ return
+ end
+ if pos.x == ncpos.x and pos.y == ncpos.y and pos.z == ncpos.z then
+ clock = os.clock()
+ if clock - nctime < 0.1 then
+ return
+ end
+ nctime = clock
+
+ s0 = ncstuff[ncq]
+ ncq = s0[1]
+ s1 = ncstuff[ncq]
+ p0 = pos
+ p1 = {x = p0.x + s0[2], y = p0.y, z = p0.z + s0[3]}
+ p2 = {x = p1.x + s1[2], y = p1.y, z = p1.z + s1[3]}
+ table.insert(ncold, 1, p0)
+ while #ncold >= 10 do
+ minetest.env:add_node(ncold[#ncold], {name="air"})
+ table.remove(ncold, #ncold)
+ end
+ minetest.env:add_node(p0, {name="nyancat_rainbow"})
+ minetest.env:add_node(p1, {name="nyancat", param1=s0[4]})
+ minetest.env:add_node(p2, {name="air"})
+ ncpos = p1
+ end
+ end,
+})--]]
+
+