Reorganize mods

2 files changed, 542 insertions, 0 deletions

diff --git a/data/mods/experimental/depends.txt b/data/mods/experimental/depends.txt
new file mode 100644
index 000000000..3a7daa1d7
--- /dev/null
+++ b/data/mods/experimental/depends.txt
@@ -0,0 +1,2 @@
+default
+
diff --git a/data/mods/experimental/init.lua b/data/mods/experimental/init.lua
new file mode 100644
index 000000000..45f16738f
--- /dev/null
+++ b/data/mods/experimental/init.lua
@@ -0,0 +1,540 @@
+--
+-- 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,
+})--]]
+
+