Move games/minetest to games/minimal and update README.txt

3 files changed, 654 insertions, 0 deletions

diff --git a/games/minimal/mods/experimental/depends.txt b/games/minimal/mods/experimental/depends.txt
new file mode 100644
index 000000000..3a7daa1d7
--- /dev/null
+++ b/games/minimal/mods/experimental/depends.txt
@@ -0,0 +1,2 @@
+default
+
diff --git a/games/minimal/mods/experimental/init.lua b/games/minimal/mods/experimental/init.lua
new file mode 100644
index 000000000..e11086274
--- /dev/null
+++ b/games/minimal/mods/experimental/init.lua
@@ -0,0 +1,652 @@
+--
+-- Experimental things
+--
+
+-- For testing random stuff
+
+experimental = {}
+
+timers_to_add = {}
+timers = {}
+minetest.register_globalstep(function(dtime)
+  for indes, timer in ipairs(timers_to_add) do
+    table.insert(timers, timer)
+  end
+  timers_to_add = {}
+  for index, timer in ipairs(timers) do
+    timer.time = timer.time - dtime
+    if timer.time <= 0 then
+      timer.func()
+      timers[index] = nil
+    end
+  end
+end)
+
+after = function(time, func)
+  table.insert(timers_to_add, {time=time, func=func})
+end
+
+--[[
+stepsound = -1
+function test_sound()
+	print("test_sound")
+	stepsound = minetest.sound_play("default_grass_footstep", {gain=1.0})
+	after(2.0, test_sound)
+	--after(0.1, test_sound_stop)
+end
+function test_sound_stop()
+	print("test_sound_stop")
+	minetest.sound_stop(stepsound)
+	after(2.0, test_sound)
+end
+test_sound()
+--]]
+
+function on_step(dtime)
+	-- print("experimental on_step")
+	--[[
+	objs = minetest.env:get_objects_inside_radius({x=0,y=0,z=0}, 10)
+	for k, obj in pairs(objs) do
+		name = obj:get_player_name()
+		if name then
+			print(name.." at "..dump(obj:getpos()))
+			print(name.." dir: "..dump(obj:get_look_dir()))
+			print(name.." pitch: "..dump(obj:get_look_pitch()))
+			print(name.." yaw: "..dump(obj:get_look_yaw()))
+		else
+			print("Some object at "..dump(obj:getpos()))
+		end
+	end
+	--]]
+	--[[
+	if experimental.t1 == nil then
+		experimental.t1 = 0
+	end
+	experimental.t1 = experimental.t1 + dtime
+	if experimental.t1 >= 2 then
+		experimental.t1 = experimental.t1 - 2
+		minetest.log("time of day is "..minetest.env:get_timeofday())
+		if experimental.day then
+			minetest.log("forcing day->night")
+			experimental.day = false
+			minetest.env:set_timeofday(0.0)
+		else
+			minetest.log("forcing night->day")
+			experimental.day = true
+			minetest.env:set_timeofday(0.5)
+		end
+		minetest.log("time of day is "..minetest.env:get_timeofday())
+	end
+	--]]
+end
+minetest.register_globalstep(on_step)
+
+-- An example furnace-thing implemented in Lua
+
+--[[
+minetest.register_node("experimental:luafurnace", {
+	tile_images = {"default_lava.png", "default_furnace_side.png",
+		"default_furnace_side.png", "default_furnace_side.png",
+		"default_furnace_side.png", "default_furnace_front.png"},
+	--inventory_image = "furnace_front.png",
+	inventory_image = minetest.inventorycube("default_furnace_front.png"),
+	paramtype = "facedir_simple",
+	metadata_name = "generic",
+	material = minetest.digprop_stonelike(3.0),
+})
+
+minetest.register_on_placenode(function(pos, newnode, placer)
+	if newnode.name == "experimental:luafurnace" then
+		local meta = minetest.env:get_meta(pos)
+		meta:inventory_set_list("fuel", {""})
+		meta:inventory_set_list("src", {""})
+		meta:inventory_set_list("dst", {"","","",""})
+		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;
+		meta:set_string("total_cooked", total_cooked)
+		meta:set_infotext("Lua Furnace: total cooked: "..total_cooked)
+	end
+end)
+
+minetest.register_abm({
+	nodenames = {"experimental:luafurnace"},
+	interval = 1.0,
+	chance = 1,
+	action = function(pos, node, active_object_count, active_object_count_wider)
+		local meta = minetest.env:get_meta(pos)
+		for i, name in ipairs({
+				"fuel_totaltime",
+				"fuel_time",
+				"src_totaltime",
+				"src_time"
+		}) do
+			if not meta:get_string(name) then
+				meta:set_string(name, 0)
+			end
+		end
+
+		local inv = meta:get_inventory()
+		
+		local fuelitem = inv:get_stack("fuel", 1):peek_item()
+		local srcitem = inv:get_stack("src", 1):peek_item()
+		--print("fuelitem="..dump(fuelitem))
+		--print("srcitem="..dump(srcitem))
+		
+		local was_active = false
+
+		local src_cooktime = -1
+		local result_stackstring = nil
+		
+		if srcitem then
+			local prop = get_item_definition(srcitem)
+			if prop and prop.cookresult_itemstring ~= "" then
+				result_stackstring = prop.cookresult_itemstring
+				src_cooktime = prop.furnace_cooktime or 3
+			end
+		end
+
+		print("src_cooktime="..dump(src_cooktime))
+		print("result_stackstring="..dump(result_stackstring))
+
+		if tonumber(meta:get_string("fuel_time")) < tonumber(meta:get_string("fuel_totaltime")) then
+			was_active = true
+			meta:set_string("fuel_time", tonumber(meta:get_string("fuel_time")) + 1)
+			meta:set_string("src_time", tonumber(meta:get_string("src_time")) + 1)
+			--print("result_stackstring="..dump(result_stackstring))
+			--print('tonumber(meta:get_string("src_time"))='..dump(tonumber(meta:get_string("src_time"))))
+			--print("src_cooktime="..dump(src_cooktime))
+			if result_stackstring and tonumber(meta:get_string("src_time")) >= src_cooktime and src_cooktime >= 0 then
+				-- Put result in "dst" list
+				success = inv:autoinsert_stackstring("dst", result_stackstring)
+				if not success then
+					print("Could not autoinsert '"..result_stackstring.."'")
+				end
+				-- If succeeded, take stuff from "src" list
+				if success then
+					srcstack = inv:get_stack("src", 1)
+					srcstack:take_item()
+					inv:set_stack("src", 1, srcstack)
+				end
+				meta:set_string("src_time", 0)
+			end
+		end
+		
+		if tonumber(meta:get_string("fuel_time")) < tonumber(meta:get_string("fuel_totaltime")) then
+			meta:set_infotext("Furnace active: "..(tonumber(meta:get_string("fuel_time"))/tonumber(meta:get_string("fuel_totaltime"))*100).."%")
+			return
+		end
+
+		local srcitem = inv:get_stack("src", 1):peek_item()
+
+		local src_cooktime = 0
+		local result_stackstring = nil
+		
+		if srcitem then
+			local prop = get_item_definition(srcitem)
+			if prop and prop.cookresult_itemstring ~= "" then
+				result_stackstring = prop.cookresult_itemstring
+				src_cooktime = prop.furnace_cooktime or 3
+			end
+		end
+
+		local fuelitem = inv:get_stack("fuel", 1):peek_item()
+
+		if not result_stackstring or not fuelitem then
+			if was_active then
+				meta:set_infotext("Furnace is empty")
+			end
+			return
+		end
+
+		local burntime = -1
+		if fuelitem then
+			local prop = get_item_definition(fuelitem)
+			if prop then
+				burntime = prop.furnace_burntime or -1
+			end
+		end
+
+		if burntime <= 0 then
+			meta:set_infotext("Furnace out of fuel")
+			return
+		end
+
+		meta:set_string("fuel_totaltime", burntime)
+		meta:set_string("fuel_time", 0)
+		
+		local stack = inv:get_stack("fuel", 1)
+		stack:take_item()
+		inv:set_stack("fuel", 1, stack)
+	end,
+})
+minetest.register_abm({
+	nodenames = {"experimental: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 == "node" 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 == "node" 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 = 'node "experimental:luafurnace" 1',
+	recipe = {
+		{'node "default:cobble"', 'node "default:cobble"', 'node "default:cobble"'},
+		{'node "default:cobble"', 'node "default:steel_ingot"', 'node "default:cobble"'},
+		{'node "default:cobble"', 'node "default:cobble"', 'node "default:cobble"'},
+	}
+})
+--]]
+
+--
+-- Random stuff
+--
+
+--[[
+minetest.register_tool("experimental:horribletool", {
+	image = "default_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
+})
+--]]
+
+--
+-- TNT (not functional)
+--
+
+minetest.register_craft({
+	output = 'experimental:tnt',
+	recipe = {
+		{'default:wood'},
+		{'default:coal_lump'},
+		{'default:wood'}
+	}
+})
+
+minetest.register_node("experimental:tnt", {
+	tile_images = {"default_tnt_top.png", "default_tnt_bottom.png",
+			"default_tnt_side.png", "default_tnt_side.png",
+			"default_tnt_side.png", "default_tnt_side.png"},
+	inventory_image = minetest.inventorycube("default_tnt_top.png",
+			"default_tnt_side.png", "default_tnt_side.png"),
+	drop = '', -- Get nothing
+	material = {
+		diggability = "not",
+	},
+})
+
+minetest.register_on_punchnode(function(p, node)
+	if node.name == "experimental:tnt" then
+		minetest.env:remove_node(p)
+		minetest.env:add_entity(p, "experimental:tnt")
+		nodeupdate(p)
+	end
+end)
+
+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 = {"default_tnt_top.png", "default_tnt_bottom.png",
+			"default_tnt_side.png", "default_tnt_side.png",
+			"default_tnt_side.png", "default_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")
+	self.object:set_armor_groups({immortal=1})
+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:get_inventory():add_item("main", "experimental:tnt")
+		--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("experimental:tnt", TNT)
+
+-- Add TNT's old name also
+minetest.register_alias("TNT", "experimental:tnt")
+
+--
+-- The dummyball!
+--
+
+minetest.register_entity("experimental:dummyball", {
+	-- Static definition
+	hp_max = 20,
+	physical = false,
+	collisionbox = {-0.4,-0.4,-0.4, 0.4,0.4,0.4},
+	visual = "sprite",
+	visual_size = {x=1, y=1},
+	textures = {"experimental_dummyball.png"},
+	spritediv = {x=1, y=3},
+	initial_sprite_basepos = {x=0, y=0},
+	-- Dynamic variables
+	phase = 0,
+	phasetimer = 0,
+
+	on_activate = function(self, staticdata)
+		minetest.log("Dummyball activated!")
+	end,
+
+	on_step = function(self, dtime)
+		self.phasetimer = self.phasetimer + dtime
+		if self.phasetimer > 2.0 then
+			self.phasetimer = self.phasetimer - 2.0
+			self.phase = self.phase + 1
+			if self.phase >= 3 then
+				self.phase = 0
+			end
+			self.object:setsprite({x=0, y=self.phase})
+			phasearmor = {
+				[0]={cracky=3},
+				[1]={crumbly=3},
+				[2]={fleshy=3}
+			}
+			self.object:set_armor_groups(phasearmor[self.phase])
+		end
+	end,
+
+	on_punch = function(self, hitter)
+	end,
+})
+
+minetest.register_on_chat_message(function(name, message)
+	local cmd = "/dummyball"
+	if message:sub(0, #cmd) == cmd then
+		if not minetest.get_player_privs(name)["give"] then
+			minetest.chat_send_player(name, "you don't have permission to spawn (give)")
+			return true -- Handled chat message
+		end
+		if not minetest.get_player_privs(name)["interact"] then
+			minetest.chat_send_player(name, "you don't have permission to interact")
+			return true -- Handled chat message
+		end
+		local player = minetest.env:get_player_by_name(name)
+		if player == nil then
+			print("Unable to spawn entity, player is nil")
+			return true -- Handled chat message
+		end
+		local entityname = "experimental:dummyball"
+		local p = player:getpos()
+		p.y = p.y + 1
+		minetest.env:add_entity(p, entityname)
+		minetest.chat_send_player(name, '"'..entityname
+				..'" spawned.');
+		return true -- Handled chat message
+	end
+end)
+
+--
+-- A test entity for testing animated and yaw-modulated sprites
+--
+
+minetest.register_entity("experimental: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('craft 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,
+})--]]
+
+minetest.log("experimental modname="..dump(minetest.get_current_modname()))
+minetest.log("experimental modpath="..dump(minetest.get_modpath("experimental")))
+minetest.log("experimental worldpath="..dump(minetest.get_worldpath()))
+
+-- END
diff --git a/games/minimal/mods/experimental/textures/experimental_dummyball.png b/games/minimal/mods/experimental/textures/experimental_dummyball.png
new file mode 100644
index 000000000..084676552
--- /dev/null
+++ b/games/minimal/mods/experimental/textures/experimental_dummyball.png