adding mapgen spring clay. Mineclone2 and Mineclone5 both need to accept pull requests fixing bugs before this will work

default.lua

@@ -53,33 +53,18 @@ end
 
 -- Springs
 -----------------------------------------------------------------------------------------------------------------------
-local function deep_copy(table_in)
-	local table_out = {}
-	for index, value in pairs(table_in) do
-		if type(value) == "table" then
-			table_out[index] = deep_copy(value)
-		else
-			table_out[index] = value
-		end
-	end
-	return table_out
-end
 
-local duplicate_def = function (name)
-	local old_def = minetest.registered_nodes[name]
-	return deep_copy(old_def)
-end
 
 -- register damp clay whether we're going to set the ABM or not, if the user disables this feature we don't want existing
 -- spring clay to turn into unknown nodes.
-local clay_def = duplicate_def("default:clay")
+local clay_def = dynamic_liquid.duplicate_def("default:clay")
 clay_def.description = S("Damp Clay")
 if not springs then
 	clay_def.groups.not_in_creative_inventory = 1 -- take it out of creative inventory though
 end
 minetest.register_node("dynamic_liquid:clay", clay_def)
 
-local data = {}
+local data = dynamic_liquid.mapgen_data
 
 if springs then	
 	local c_clay = minetest.get_content_id("default:clay")

init.lua

@@ -21,6 +21,26 @@ dynamic_liquid.config.falling_obsidian = minetest.settings:get_bool("dynamic_liq
 dynamic_liquid.registered_liquids = {} -- used by the flow-through node abm
 dynamic_liquid.registered_liquid_neighbors = {}
 
+dynamic_liquid.mapgen_data = {} -- shared by various mapgens
+
+
+local function deep_copy(table_in)
+	local table_out = {}
+	for index, value in pairs(table_in) do
+		if type(value) == "table" then
+			table_out[index] = deep_copy(value)
+		else
+			table_out[index] = value
+		end
+	end
+	return table_out
+end
+-- utility function used when making clay into springs
+dynamic_liquid.duplicate_def = function (name)
+	local old_def = minetest.registered_nodes[name]
+	return deep_copy(old_def)
+end
+
 local modpath = minetest.get_modpath(minetest.get_current_modname())
 
 dofile(modpath.."/cooling_lava.lua")

mapgen_prefill.lua

@@ -1,4 +1,4 @@
-local data = {}
+local data = dynamic_liquid.mapgen_data
 
 dynamic_liquid.mapgen_prefill = function(def)
 

mineclone.lua

@@ -6,7 +6,8 @@ local lava_probability = dynamic_liquid.config.lava_probability
 local water_level = dynamic_liquid.config.water_level
 local springs = dynamic_liquid.config.springs
 
-
+-- Since lava cooling behaviour can't be overridden in Mineclone, disabling dynamic liquid behaviour for lava
+-- otherwise you get lava nodes wandering around on top of oceans covering the whole thing in stone.
 --if dynamic_liquid.config.lava then
 --	dynamic_liquid.liquid_abm("mcl_core:lava_source", "mcl_core:lava_flowing", lava_probability)
 --end
@@ -25,7 +26,41 @@ if dynamic_liquid.config.river_water then
 end
 
 if dynamic_liquid.config.springs then
-	--TODO: mapgen clay, this is a temporary measure for testing purposes
+	local clay_def = dynamic_liquid.duplicate_def("mcl_core:clay")
+	clay_def.description = S("Damp Clay")
+	minetest.register_node("dynamic_liquid:clay", clay_def)
+
+	local c_clay = minetest.get_content_id("mcl_core:clay")
+	local c_spring_clay = minetest.get_content_id("dynamic_liquid:clay")
+
+	local spring_placement = function(minp, maxp, data)
+		if minp.y >= water_level or maxp.y <= -15 then
+			return false
+		end
+		local placed_spring = false
+		for voxelpos, voxeldata in pairs(data) do
+			if voxeldata == c_clay then
+				data[voxelpos] = c_spring_clay
+				placed_spring = true
+			end
+		end
+		return placed_spring
+	end
+	
+	-- mineclone 5
+	if minetest.get_modpath("mcl_mapgen") and mcl_mapgen.register_on_generated then
+		mcl_mapgen.register_on_generated(function(vm_context)
+			if spring_placement(vm_context.minp, vm_context.maxp, vm_context.data) then
+				vm_context.write = true
+			end
+		end, 999999999+1)
+	end
+	--mineclone 2
+	if minetest.get_modpath("mcl_mapgen_core") and mcl_mapgen_core.register_generator then
+		mcl_mapgen_core.register_generator("dynamic_liquid_damp_clay", function(vm, data, data2, emin, emax, area, minp, maxp, blockseed)
+			return spring_placement(minp, maxp, data)
+		end, nil, 999999+1)
+	end
 
 	dynamic_liquid.spring({
 		nodenames = {"mcl_core:clay"},

mod.conf

@@ -1,3 +1,3 @@
 name = dynamic_liquid
-optional_depends = default, doc, xpanes, carts, mcl_core, mclx_core
+optional_depends = default, doc, xpanes, carts, mcl_core, mclx_core, mcl_mapgen_core, mcl_mapgen
 description = Flowing dynamic liquids and ocean-maintenance springs.