move remaining api code to mcl_structures/api.lua

the positions are available from the registered structure

mods/ITEMS/mcl_end/eye_of_ender.lua

@@ -87,7 +87,7 @@ minetest.register_craftitem("mcl_end:ender_eye", {
 		end
 		local origin = user:get_pos()
 		origin.y = origin.y + 1.5
-		local strongholds = mcl_structures.get_structure_data("stronghold")
+		local strongholds = mcl_structures.registered_structures["end_shrine"].static_pos
 		local dim = mcl_worlds.pos_to_dimension(origin)
 		local is_creative = minetest.is_creative_enabled(user:get_player_name())
 
@@ -105,7 +105,7 @@ minetest.register_craftitem("mcl_end:ender_eye", {
 		local closest_stronghold
 		local lowest_dist
 		for s=1, #strongholds do
-			local h_pos = table.copy(strongholds[s].pos)
+			local h_pos = table.copy(strongholds[s])
 			local h_origin = table.copy(origin)
 			h_pos.y = 0
 			h_origin.y = 0
@@ -128,14 +128,14 @@ minetest.register_craftitem("mcl_end:ender_eye", {
 		if lowest_dist <= 25 then
 			local velocity = 4
 			-- Stronghold is close: Fly directly to stronghold and take Y into account.
-			dir = vector.normalize(vector.direction(origin, closest_stronghold.pos))
+			dir = vector.normalize(vector.direction(origin, closest_stronghold))
 			obj:set_velocity({x=dir.x*velocity, y=dir.y*velocity, z=dir.z*velocity})
 		else
 			local velocity = 12
 			-- Don't care about Y if stronghold is still far away.
 			-- Fly to direction of X/Z, and always upwards so it can be seen easily.
 			local o = {x=origin.x, y=0, z=origin.z}
-			local s = {x=closest_stronghold.pos.x, y=0, z=closest_stronghold.pos.z}
+			local s = {x=closest_stronghold.x, y=0, z=closest_stronghold.z}
 			dir = vector.normalize(vector.direction(o, s))
 			obj:set_acceleration({x=dir.x*-3, y=4, z=dir.z*-3})
 			obj:set_velocity({x=dir.x*velocity, y=3, z=dir.z*velocity})

mods/MAPGEN/mcl_strongholds/init.lua

@@ -16,25 +16,17 @@ local stronghold_rings = {
 }
 
 local strongholds = {}
-local strongholds_inited = false
 
 local mg_name = minetest.get_mapgen_setting("mg_name")
 local superflat = mg_name == "flat" and minetest.get_mapgen_setting("mcl_superflat_classic") == "true"
+local seed = tonumber(minetest.get_mapgen_setting("seed"))
 
--- Determine the stronghold positions and store them into the strongholds table.
--- The stronghold positions are based on the world seed.
--- The actual position might be offset by a few blocks because it might be shifted
--- to make sure the end portal room is completely within the boundaries of a mapchunk.
 local function init_strongholds()
-	if strongholds_inited then
-		return
-	end
+	local stronghold_positions = {}
 	-- Don't generate strongholds in singlenode
 	if mg_name == "singlenode" then
-		strongholds_inited = true
-		return
+		return {}
 	end
-	local seed = tonumber(minetest.get_mapgen_setting("seed"))
 	local pr = PseudoRandom(seed)
 	for s=1, #stronghold_rings do
 		local ring = stronghold_rings[s]
@@ -53,17 +45,14 @@ local function init_strongholds()
 			end
 			local pos = { x = math.cos(angle) * dist, y = y, z = math.sin(angle) * dist }
 			pos = vector.round(pos)
-			table.insert(strongholds, { pos = pos, generated = false })
+			table.insert(stronghold_positions, pos)
 
 			-- Rotate angle by (360 / amount) degrees.
 			-- This will cause the angles to be evenly distributed in the stronghold ring
 			angle = math.fmod(angle + ((math.pi*2) / ring.amount), math.pi*2)
 		end
 	end
-
-	mcl_structures.register_structure_data("stronghold", table.copy(strongholds))
-
-	strongholds_inited = true
+	return stronghold_positions
 end
 
 -- Stronghold generation for register_on_generated.
@@ -94,13 +83,94 @@ local function generate_strongholds(minp, maxp, blockseed)
 					pos.z = maxp.z - 7
 				end
 
-				mcl_structures.call_struct(pos, "end_portal_shrine", nil, pr)
+				--mcl_structures.call_struct(pos, "end_portal_shrine", nil, pr)
 				strongholds[s].generated = true
 			end
 		end
 	end
 end
 
-init_strongholds()
+mcl_structures.register_structure("end_shrine",{
+	static_pos = init_strongholds(),
+	filenames = {
+		minetest.get_modpath("mcl_structures").."/schematics/mcl_structures_end_portal_room_simple.mts"
+	},
+	after_place = function(pos,def,pr,blockseed,p1,p2,size,rotation)
+		local p1 = vector.subtract(pos,size)
+		local p2 = vector.add(pos,size)
+		local spawners = minetest.find_nodes_in_area(p1, p2, "mcl_mobspawners:spawner")
+		for s=1, #spawners do
+			--local meta = minetest.get_meta(spawners[s])
+			mcl_mobspawners.setup_spawner(spawners[s], "mobs_mc:silverfish")
+		end
 
-mcl_mapgen_core.register_generator("strongholds", nil, generate_strongholds, 999999)
+		-- Shuffle stone brick types
+		local bricks = minetest.find_nodes_in_area(p1, p2, "mcl_core:stonebrick")
+		for b=1, #bricks do
+			local r_bricktype = pr:next(1, 100)
+			local r_infested = pr:next(1, 100)
+			local bricktype
+			if r_infested <= 5 then
+				if r_bricktype <= 30 then -- 30%
+					bricktype = "mcl_monster_eggs:monster_egg_stonebrickmossy"
+				elseif r_bricktype <= 50 then -- 20%
+					bricktype = "mcl_monster_eggs:monster_egg_stonebrickcracked"
+				else -- 50%
+					bricktype = "mcl_monster_eggs:monster_egg_stonebrick"
+				end
+			else
+				if r_bricktype <= 30 then -- 30%
+					bricktype = "mcl_core:stonebrickmossy"
+				elseif r_bricktype <= 50 then -- 20%
+					bricktype = "mcl_core:stonebrickcracked"
+				end
+				-- 50% stonebrick (no change necessary)
+			end
+			if bricktype then
+				minetest.set_node(bricks[b], { name = bricktype })
+			end
+		end
+
+		-- Also replace stairs
+		local stairs = minetest.find_nodes_in_area(p1, p2, {"mcl_stairs:stair_stonebrick", "mcl_stairs:stair_stonebrick_outer", "mcl_stairs:stair_stonebrick_inner"})
+		for s=1, #stairs do
+			local stair = minetest.get_node(stairs[s])
+			local r_type = pr:next(1, 100)
+			if r_type <= 30 then -- 30% mossy
+				if stair.name == "mcl_stairs:stair_stonebrick" then
+					stair.name = "mcl_stairs:stair_stonebrickmossy"
+				elseif stair.name == "mcl_stairs:stair_stonebrick_outer" then
+					stair.name = "mcl_stairs:stair_stonebrickmossy_outer"
+				elseif stair.name == "mcl_stairs:stair_stonebrick_inner" then
+					stair.name = "mcl_stairs:stair_stonebrickmossy_inner"
+				end
+				minetest.set_node(stairs[s], stair)
+			elseif r_type <= 50 then -- 20% cracky
+				if stair.name == "mcl_stairs:stair_stonebrick" then
+					stair.name = "mcl_stairs:stair_stonebrickcracked"
+				elseif stair.name == "mcl_stairs:stair_stonebrick_outer" then
+					stair.name = "mcl_stairs:stair_stonebrickcracked_outer"
+				elseif stair.name == "mcl_stairs:stair_stonebrick_inner" then
+					stair.name = "mcl_stairs:stair_stonebrickcracked_inner"
+				end
+				minetest.set_node(stairs[s], stair)
+			end
+			-- 50% no change
+		end
+
+		-- Randomly add ender eyes into end portal frames, but never fill the entire frame
+		local frames = minetest.find_nodes_in_area(p1, p2, "mcl_portals:end_portal_frame")
+		local eyes = 0
+		for f=1, #frames do
+			local r_eye = pr:next(1, 10)
+			if r_eye == 1 then
+				eyes = eyes + 1
+				if eyes < #frames then
+					local frame_node = minetest.get_node(frames[f])
+					frame_node.name = "mcl_portals:end_portal_frame_eye"
+					minetest.set_node(frames[f], frame_node)
+				end
+			end
+		end
+	end,
+})

mods/MAPGEN/mcl_structures/api.lua

@@ -6,10 +6,76 @@ else disabled_structures = {} end
 
 local logging = minetest.settings:get_bool("mcl_logging_structures",true)
 
+local rotations = {
+	"0",
+	"90",
+	"180",
+	"270"
+}
+
 function mcl_structures.is_disabled(structname)
 	return table.indexof(disabled_structures,structname) ~= -1
 end
 
+local function ecb_place(blockpos, action, calls_remaining, param)
+	if calls_remaining >= 1 then return end
+	minetest.place_schematic(param.pos, param.schematic, param.rotation, param.replacements, param.force_placement, param.flags)
+	if param.after_placement_callback and param.p1 and param.p2 then
+		param.after_placement_callback(param.p1, param.p2, param.size, param.rotation, param.pr, param.callback_param)
+	end
+end
+
+function mcl_structures.place_schematic(pos, schematic, rotation, replacements, force_placement, flags, after_placement_callback, pr, callback_param)
+	local s = loadstring(minetest.serialize_schematic(schematic, "lua", {lua_use_comments = false, lua_num_indent_spaces = 0}) .. " return schematic")()
+	if s and s.size then
+		local x, z = s.size.x, s.size.z
+		if rotation then
+			if rotation == "random" and pr then
+				rotation = rotations[pr:next(1,#rotations)]
+			end
+			if rotation == "random" then
+				x = math.max(x, z)
+				z = x
+			elseif rotation == "90" or rotation == "270" then
+				x, z = z, x
+			end
+		end
+		local p1 = {x=pos.x    , y=pos.y           , z=pos.z    }
+		local p2 = {x=pos.x+x-1, y=pos.y+s.size.y-1, z=pos.z+z-1}
+		minetest.log("verbose", "[mcl_structures] size=" ..minetest.pos_to_string(s.size) .. ", rotation=" .. tostring(rotation) .. ", emerge from "..minetest.pos_to_string(p1) .. " to " .. minetest.pos_to_string(p2))
+		local param = {pos=vector.new(pos), schematic=s, rotation=rotation, replacements=replacements, force_placement=force_placement, flags=flags, p1=p1, p2=p2, after_placement_callback = after_placement_callback, size=vector.new(s.size), pr=pr, callback_param=callback_param}
+		minetest.emerge_area(p1, p2, ecb_place, param)
+		return true
+	end
+end
+
+function mcl_structures.get_struct(file)
+	local localfile = modpath.."/schematics/"..file
+	local file, errorload = io.open(localfile, "rb")
+	if errorload then
+		minetest.log("error", "[mcl_structures] Could not open this struct: "..localfile)
+		return nil
+	end
+
+	local allnode = file:read("*a")
+	file:close()
+
+	return allnode
+end
+
+-- Call on_construct on pos.
+-- Useful to init chests from formspec.
+local function init_node_construct(pos)
+	local node = minetest.get_node(pos)
+	local def = minetest.registered_nodes[node.name]
+	if def and def.on_construct then
+		def.on_construct(pos)
+		return true
+	end
+	return false
+end
+mcl_structures.init_node_construct = init_node_construct
+
 function mcl_structures.fill_chests(p1,p2,loot,pr)
 	for it,lt in pairs(loot) do
 		local nodes = minetest.find_nodes_in_area(p1, p2, it)
@@ -140,8 +206,9 @@ local function foundation(ground_p1,ground_p2,pos,sidelen)
 	minetest.bulk_set_node(stone,{name=node_stone})
 end
 
-function mcl_structures.place_structure(pos, def, pr, blockseed)
+function mcl_structures.place_structure(pos, def, pr, blockseed,rot)
 	if not def then	return end
+	if not rot then rot = "random" end
 	local log_enabled = logging and not def.terrain_feature
 	local y_offset = 0
 	if type(def.y_offset) == "function" then
@@ -180,10 +247,10 @@ function mcl_structures.place_structure(pos, def, pr, blockseed)
 			local ap = function(pos,def,pr,blockseed) end
 			if def.after_place then ap = def.after_place  end
 
-			mcl_structures.place_schematic(pp, file, "random", nil, true, "place_center_x,place_center_z",function(p)
+			mcl_structures.place_schematic(pp, file, rot, def.replacements, true, "place_center_x,place_center_z",function(p1, p2, size, rotation)
 				if def.loot then generate_loot(pp,def,pr,blockseed) end
 				if def.construct_nodes then construct_nodes(pp,def,pr,blockseed) end
-				return ap(pp,def,pr,blockseed)
+				return ap(pp,def,pr,blockseed,p1,p2,size,rotation)
 			end,pr)
 			if log_enabled then
 				minetest.log("action","[mcl_structures] "..def.name.." placed at "..minetest.pos_to_string(pp))

mods/MAPGEN/mcl_structures/init.lua

@@ -4,216 +4,6 @@ local modpath = minetest.get_modpath(modname)
 
 mcl_structures = {}
 
-local rotations = {
-	"0",
-	"90",
-	"180",
-	"270"
-}
-
-local replacement = {
-	["mcl_farming:pumpkintige_linked_t"] = "mcl_farming:pumpkintige_unconnect",
-	["mcl_farming:melontige_linked_t"] = "mcl_farming:melontige_unconnect"
-}
-
-local function ecb_place(blockpos, action, calls_remaining, param)
-	if calls_remaining >= 1 then return end
-	minetest.place_schematic(param.pos, param.schematic, param.rotation, param.replacements, param.force_placement, param.flags)
-	if param.after_placement_callback and param.p1 and param.p2 then
-		param.after_placement_callback(param.p1, param.p2, param.size, param.rotation, param.pr, param.callback_param)
-	end
-end
-
-function mcl_structures.place_schematic(pos, schematic, rotation, replacements, force_placement, flags, after_placement_callback, pr, callback_param)
-	local s = loadstring(minetest.serialize_schematic(schematic, "lua", {lua_use_comments = false, lua_num_indent_spaces = 0}) .. " return schematic")()
-	if s and s.size then
-		local x, z = s.size.x, s.size.z
-		if rotation then
-			if rotation == "random" and pr then
-				rotation = rotations[pr:next(1,#rotations)]
-			end
-			if rotation == "random" then
-				x = math.max(x, z)
-				z = x
-			elseif rotation == "90" or rotation == "270" then
-				x, z = z, x
-			end
-		end
-		local p1 = {x=pos.x    , y=pos.y           , z=pos.z    }
-		local p2 = {x=pos.x+x-1, y=pos.y+s.size.y-1, z=pos.z+z-1}
-		minetest.log("verbose", "[mcl_structures] size=" ..minetest.pos_to_string(s.size) .. ", rotation=" .. tostring(rotation) .. ", emerge from "..minetest.pos_to_string(p1) .. " to " .. minetest.pos_to_string(p2))
-		local param = {pos=vector.new(pos), schematic=s, rotation=rotation, replacements=replacement, force_placement=force_placement, flags=flags, p1=p1, p2=p2, after_placement_callback = after_placement_callback, size=vector.new(s.size), pr=pr, callback_param=callback_param}
-		minetest.emerge_area(p1, p2, ecb_place, param)
-		return true
-	end
-end
-
-function mcl_structures.get_struct(file)
-	local localfile = modpath.."/schematics/"..file
-	local file, errorload = io.open(localfile, "rb")
-	if errorload then
-		minetest.log("error", "[mcl_structures] Could not open this struct: "..localfile)
-		return nil
-	end
-
-	local allnode = file:read("*a")
-	file:close()
-
-	return allnode
-end
-
--- Call on_construct on pos.
--- Useful to init chests from formspec.
-local function init_node_construct(pos)
-	local node = minetest.get_node(pos)
-	local def = minetest.registered_nodes[node.name]
-	if def and def.on_construct then
-		def.on_construct(pos)
-		return true
-	end
-	return false
-end
-mcl_structures.init_node_construct = init_node_construct
-
--- The call of Struct
-function mcl_structures.call_struct(pos, struct_style, rotation, pr)
-	minetest.log("action","[mcl_structures] call_struct " .. struct_style.." at "..minetest.pos_to_string(pos))
-	if not rotation then
-		rotation = "random"
-	end
-	if struct_style == "end_portal_shrine" then
-		return mcl_structures.generate_end_portal_shrine(pos, rotation, pr)
-	end
-end
-
-local function shrine_placement_callback(p1, p2, size, rotation, pr)
-	-- Find and setup spawner with silverfish
-	local spawners = minetest.find_nodes_in_area(p1, p2, "mcl_mobspawners:spawner")
-	for s=1, #spawners do
-		--local meta = minetest.get_meta(spawners[s])
-		mcl_mobspawners.setup_spawner(spawners[s], "mobs_mc:silverfish")
-	end
-
-	-- Shuffle stone brick types
-	local bricks = minetest.find_nodes_in_area(p1, p2, "mcl_core:stonebrick")
-	for b=1, #bricks do
-		local r_bricktype = pr:next(1, 100)
-		local r_infested = pr:next(1, 100)
-		local bricktype
-		if r_infested <= 5 then
-			if r_bricktype <= 30 then -- 30%
-				bricktype = "mcl_monster_eggs:monster_egg_stonebrickmossy"
-			elseif r_bricktype <= 50 then -- 20%
-				bricktype = "mcl_monster_eggs:monster_egg_stonebrickcracked"
-			else -- 50%
-				bricktype = "mcl_monster_eggs:monster_egg_stonebrick"
-			end
-		else
-			if r_bricktype <= 30 then -- 30%
-				bricktype = "mcl_core:stonebrickmossy"
-			elseif r_bricktype <= 50 then -- 20%
-				bricktype = "mcl_core:stonebrickcracked"
-			end
-			-- 50% stonebrick (no change necessary)
-		end
-		if bricktype then
-			minetest.set_node(bricks[b], { name = bricktype })
-		end
-	end
-
-	-- Also replace stairs
-	local stairs = minetest.find_nodes_in_area(p1, p2, {"mcl_stairs:stair_stonebrick", "mcl_stairs:stair_stonebrick_outer", "mcl_stairs:stair_stonebrick_inner"})
-	for s=1, #stairs do
-		local stair = minetest.get_node(stairs[s])
-		local r_type = pr:next(1, 100)
-		if r_type <= 30 then -- 30% mossy
-			if stair.name == "mcl_stairs:stair_stonebrick" then
-				stair.name = "mcl_stairs:stair_stonebrickmossy"
-			elseif stair.name == "mcl_stairs:stair_stonebrick_outer" then
-				stair.name = "mcl_stairs:stair_stonebrickmossy_outer"
-			elseif stair.name == "mcl_stairs:stair_stonebrick_inner" then
-				stair.name = "mcl_stairs:stair_stonebrickmossy_inner"
-			end
-			minetest.set_node(stairs[s], stair)
-		elseif r_type <= 50 then -- 20% cracky
-			if stair.name == "mcl_stairs:stair_stonebrick" then
-				stair.name = "mcl_stairs:stair_stonebrickcracked"
-			elseif stair.name == "mcl_stairs:stair_stonebrick_outer" then
-				stair.name = "mcl_stairs:stair_stonebrickcracked_outer"
-			elseif stair.name == "mcl_stairs:stair_stonebrick_inner" then
-				stair.name = "mcl_stairs:stair_stonebrickcracked_inner"
-			end
-			minetest.set_node(stairs[s], stair)
-		end
-		-- 50% no change
-	end
-
-	-- Randomly add ender eyes into end portal frames, but never fill the entire frame
-	local frames = minetest.find_nodes_in_area(p1, p2, "mcl_portals:end_portal_frame")
-	local eyes = 0
-	for f=1, #frames do
-		local r_eye = pr:next(1, 10)
-		if r_eye == 1 then
-			eyes = eyes + 1
-			if eyes < #frames then
-				local frame_node = minetest.get_node(frames[f])
-				frame_node.name = "mcl_portals:end_portal_frame_eye"
-				minetest.set_node(frames[f], frame_node)
-			end
-		end
-	end
-end
-
-function mcl_structures.generate_end_portal_shrine(pos, rotation, pr)
-	local offset = {x=6, y=4, z=6}
-	--local size = {x=13, y=8, z=13}
-	local newpos = { x = pos.x - offset.x, y = pos.y, z = pos.z - offset.z }
-
-	local path = modpath.."/schematics/mcl_structures_end_portal_room_simple.mts"
-	mcl_structures.place_schematic(newpos, path, rotation or "0", nil, true, nil, shrine_placement_callback, pr)
-end
-
-local structure_data = {}
-
---[[ Returns a table of structure of the specified type.
-Currently the only valid parameter is "stronghold".
-Format of return value:
-{
-	{ pos = <position>, generated=<true/false> }, -- first structure
-	{ pos = <position>, generated=<true/false> }, -- second structure
-	-- and so on
-}
-
-TODO: Implement this function for all other structure types as well.
-]]
-function mcl_structures.get_structure_data(structure_type)
-	if structure_data[structure_type] then
-		return table.copy(structure_data[structure_type])
-	else
-		return {}
-	end
-end
-
--- Register a structures table for the given type. The table format is the same as for
--- mcl_structures.get_structure_data.
-function mcl_structures.register_structure_data(structure_type, structures)
-	structure_data[structure_type] = structures
-end
-
-local function dir_to_rotation(dir)
-	local ax, az = math.abs(dir.x), math.abs(dir.z)
-	if ax > az then
-		if dir.x < 0 then
-			return "270"
-		end
-		return "90"
-	end
-	if dir.z < 0 then
-		return "180"
-	end
-	return "0"
-end
-
 dofile(modpath.."/api.lua")
 dofile(modpath.."/shipwrecks.lua")
 dofile(modpath.."/desert_temple.lua")
@@ -276,21 +66,32 @@ mcl_structures.register_structure("boulder",{
 		-- small boulder 3x as likely
 	},
 },true) --is spawned as a normal decoration. this is just for /spawnstruct
+
 mcl_structures.register_structure("ice_spike_small",{
-	filenames = {
-		modpath.."/schematics/mcl_structures_ice_spike_small.mts"
-	},
+	filenames = { modpath.."/schematics/mcl_structures_ice_spike_small.mts"	},
 },true) --is spawned as a normal decoration. this is just for /spawnstruct
 mcl_structures.register_structure("ice_spike_large",{
 	sidelen = 6,
-	filenames = {
-		modpath.."/schematics/mcl_structures_ice_spike_large.mts"
-	},
+	filenames = { modpath.."/schematics/mcl_structures_ice_spike_large.mts"	},
 },true) --is spawned as a normal decoration. this is just for /spawnstruct
 
 -- Debug command
+local function dir_to_rotation(dir)
+	local ax, az = math.abs(dir.x), math.abs(dir.z)
+	if ax > az then
+		if dir.x < 0 then
+			return "270"
+		end
+		return "90"
+	end
+	if dir.z < 0 then
+		return "180"
+	end
+	return "0"
+end
+
 minetest.register_chatcommand("spawnstruct", {
-	params = "end_portal_shrine | dungeon",
+	params = "dungeon",
 	description = S("Generate a pre-defined structure near your position."),
 	privs = {debug = true},
 	func = function(name, param)
@@ -304,9 +105,7 @@ minetest.register_chatcommand("spawnstruct", {
 		local pr = PseudoRandom(pos.x+pos.y+pos.z)
 		local errord = false
 		local message = S("Structure placed.")
-		if param == "end_portal_shrine" then
-			mcl_structures.generate_end_portal_shrine(pos, rot, pr)
-		elseif param == "dungeon" and mcl_dungeons and mcl_dungeons.spawn_dungeon then
+		if param == "dungeon" and mcl_dungeons and mcl_dungeons.spawn_dungeon then
 			mcl_dungeons.spawn_dungeon(pos, rot, pr)
 		elseif param == "" then
 			message = S("Error: No structure type given. Please use “/spawnstruct <type>”.")
@@ -314,7 +113,7 @@ minetest.register_chatcommand("spawnstruct", {
 		else
 			for n,d in pairs(mcl_structures.registered_structures) do
 				if n == param then
-					mcl_structures.place_structure(pos,d,pr,math.random())
+					mcl_structures.place_structure(pos,d,pr,math.random(),rot)
 					return true,message
 				end
 			end