Weather support

Author: proller

builtin/falling.lua

@@ -14,11 +14,11 @@ minetest.register_entity("__builtin:falling_node", {
 		visual_size = {x=0.667, y=0.667},
 	},
 
-	nodename = "",
+	node = {},
 
-	set_node = function(self, nodename)
-		self.nodename = nodename
-		local stack = ItemStack(nodename)
+	set_node = function(self, node)
+		self.node = node
+		local stack = ItemStack(node.name)
 		local itemtable = stack:to_table()
 		local itemname = nil
 		if itemtable then
@@ -32,20 +32,19 @@ minetest.register_entity("__builtin:falling_node", {
 		end
 		prop = {
 			is_visible = true,
-			textures = {nodename},
+			textures = {node.name},
 		}
 		self.object:set_properties(prop)
 	end,
 
 	get_staticdata = function(self)
-		return self.nodename
+		return self.node.name
 	end,
 
 	on_activate = function(self, staticdata)
-		self.nodename = staticdata
 		self.object:set_armor_groups({immortal=1})
 		--self.object:setacceleration({x=0, y=-10, z=0})
-		self:set_node(self.nodename)
+		self:set_node({name=staticdata})
 	end,
 
 	on_step = function(self, dtime)
@@ -57,8 +56,10 @@ minetest.register_entity("__builtin:falling_node", {
 		local bcn = minetest.get_node(bcp)
 		-- Note: walkable is in the node definition, not in item groups
 		if minetest.registered_nodes[bcn.name] and
-				minetest.registered_nodes[bcn.name].walkable then
-			if minetest.registered_nodes[bcn.name].buildable_to then
+				minetest.registered_nodes[bcn.name].walkable or
+				(minetest.get_node_group(self.node.name, "float") ~= 0 and minetest.registered_nodes[bcn.name].liquidtype ~= "none")
+			then
+			if minetest.registered_nodes[bcn.name].buildable_to and (minetest.get_node_group(self.node.name, "float") == 0 or minetest.registered_nodes[bcn.name].liquidtype == "none") then
 				minetest.remove_node(bcp)
 				return
 			end
@@ -83,7 +84,7 @@ minetest.register_entity("__builtin:falling_node", {
 				end
 			end
 			-- Create node and remove entity
-			minetest.add_node(np, {name=self.nodename})
+			minetest.add_node(np, self.node)
 			self.object:remove()
 			nodeupdate(np)
 		else
@@ -92,9 +93,9 @@ minetest.register_entity("__builtin:falling_node", {
 	end
 })
 
-function spawn_falling_node(p, nodename)
+function spawn_falling_node(p, node)
 	obj = minetest.add_entity(p, "__builtin:falling_node")
-	obj:get_luaentity():set_node(nodename)
+	obj:get_luaentity():set_node(node)
 end
 
 function drop_attached_node(p)
@@ -150,13 +151,14 @@ function nodeupdate_single(p, delay)
 		n_bottom = minetest.get_node(p_bottom)
 		-- Note: walkable is in the node definition, not in item groups
 		if minetest.registered_nodes[n_bottom.name] and
+				(minetest.get_node_group(n.name, "float") == 0 or minetest.registered_nodes[n_bottom.name].liquidtype == "none") and
 				(not minetest.registered_nodes[n_bottom.name].walkable or 
 					minetest.registered_nodes[n_bottom.name].buildable_to) then
 			if delay then
 				minetest.after(0.1, nodeupdate_single, {x=p.x, y=p.y, z=p.z}, false)
 			else
 				minetest.remove_node(p)
-				spawn_falling_node(p, n.name)
+				spawn_falling_node(p, n)
 				nodeupdate(p)
 			end
 		end
@@ -170,7 +172,7 @@ function nodeupdate_single(p, delay)
 	end
 end
 
-function nodeupdate(p)
+function nodeupdate(p, delay)
 	-- Round p to prevent falling entities to get stuck
 	p.x = math.floor(p.x+0.5)
 	p.y = math.floor(p.y+0.5)
@@ -179,7 +181,7 @@ function nodeupdate(p)
 	for x = -1,1 do
 	for y = -1,1 do
 	for z = -1,1 do
-		nodeupdate_single({x=p.x+x, y=p.y+y, z=p.z+z}, not (x==0 and y==0 and z==0))
+		nodeupdate_single({x=p.x+x, y=p.y+y, z=p.z+z}, delay or not (x==0 and y==0 and z==0))
 	end
 	end
 	end

doc/lua_api.txt

@@ -322,6 +322,8 @@ param2 is reserved for the engine when any of these are used:
     facedir modulo 4 = axisdir
     0 = y+    1 = z+    2 = z-    3 = x+    4 = x-    5 = y-
     facedir's two less significant bits are rotation around the axis
+  paramtype2 == "leveled"
+  ^ The drawn node level is read from param2, like flowingliquid
 
 Nodes can also contain extra data. See "Node Metadata".
 
@@ -353,7 +355,7 @@ Node selection boxes are defined using "node boxes"
 
 The "nodebox" node drawtype allows defining visual of nodes consisting of
 arbitrary number of boxes. It allows defining stuff like stairs. Only the
-"fixed" box type is supported for these.
+"fixed" and "leveled" box type is supported for these.
 ^ Please note that this is still experimental, and may be incompatibly
   changed in the future.
 
@@ -381,6 +383,8 @@ A box is defined as:
 A box of a regular node would look like:
   {-0.5, -0.5, -0.5, 0.5, 0.5, 0.5},
 
+type = "leveled" is same as "fixed", but y2 will be automaticaly setted to level from param2
+
 Ore types
 ---------------
 These tell in what manner the ore is generated.
@@ -1258,6 +1262,18 @@ minetest.find_path(pos1,pos2,searchdistance,max_jump,max_drop,algorithm)
 ^ algorithm: A*_noprefetch(default), A*, Dijkstra
 minetest.spawn_tree (pos, {treedef})
 ^ spawns L-System tree at given pos with definition in treedef table
+minetest.transforming_liquid_add(pos)
+^ add node to liquid update queue
+minetest.get_node_max_level(pos)
+^ get max available level for leveled node
+minetest.get_node_level(pos)
+^ get level of leveled node (water, snow)
+minetest.add_node_level(pos, level)
+^ increase level of leveled node by level, default level = 1, if totallevel > maxlevel returns rest (total-max). can be negative for decreasing
+minetest.get_heat(pos)
+^ heat at pos
+minetest.get_humidity(pos)
+^ humidity at pos
 
 Inventory:
 minetest.get_inventory(location) -> InvRef
@@ -1965,6 +1981,8 @@ Node definition (register_node)
     liquid_alternative_source = "", -- Source version of flowing liquid
     liquid_viscosity = 0, -- Higher viscosity = slower flow (max. 7)
     liquid_renewable = true, -- Can new liquid source be created by placing
+    freezemelt = "", -- water for snow/ice, ice/snow for water
+    leveled = 0, -- Block contain level in param2. value - default level, used for snow. Dont forget use "leveled" type nodebox
     liquid_range = 8, -- number of flowing nodes arround source (max. 8)
     drowning = true, -- Player will drown in these 
     two or more sources nearly?

minetest.conf.example

@@ -107,6 +107,8 @@
 #liquid_fast_flood = 1
 # Underground water and lava springs, its infnity sources if liquid_finite enabled
 #underground_springs = 1
+# Enable weather (cold-hot, water freeze-melt). use only with liquid_finite=1
+#weather = false
 # Enable nice leaves; disable for speed
 #new_style_leaves = true
 # Enable smooth lighting with simple ambient occlusion;
@@ -268,7 +270,9 @@
 # Interval of sending time of day to clients
 #time_send_interval = 5
 # Length of day/night cycle. 72=20min, 360=4min, 1=24hour, 0=day/night/whatever stays unchanged
-#time_speed = 96
+#time_speed = 72
+# Length of year in days for seasons change. With default time_speed 365 days = 5 real days for year. 30 days = 10 real hours
+#year_days = 30
 #server_unload_unused_data_timeout = 29
 # Interval of saving important changes in the world
 #server_map_save_interval = 5.3