From adbde60b10296004c853047333558b88f429a5c7 Mon Sep 17 00:00:00 2001
From: kay27 <kay27@bk.ru>
Date: Sat, 5 Feb 2022 06:27:23 +0400
Subject: [PATCH] #11 Spawn buds

---
 mods/ITEMS/mcl_amethyst/geode.lua |  6 +--
 mods/ITEMS/mcl_amethyst/grow.lua  | 77 ++++++++++++++++---------------
 mods/ITEMS/mcl_amethyst/mod.conf  |  2 +-
 3 files changed, 45 insertions(+), 40 deletions(-)

diff --git a/mods/ITEMS/mcl_amethyst/geode.lua b/mods/ITEMS/mcl_amethyst/geode.lua
index 4b6b2c7b7..029d339cd 100644
--- a/mods/ITEMS/mcl_amethyst/geode.lua
+++ b/mods/ITEMS/mcl_amethyst/geode.lua
@@ -78,14 +78,14 @@ mcl_structures.register_structure({
 })
 
 local decrease_scan_area = 1
-local mapblock_opacity_placement_threshold = 0.9
+local mapblock_opacity_placement_threshold = 0.98
 local threshold = math.floor(((mcl_mapgen.BS - 2 * decrease_scan_area)^3) * mapblock_opacity_placement_threshold)
 mcl_mapgen.register_mapgen_block(function(minp, maxp, blockseed)
 	local y = minp.y
 	if y < 0 then return end
 	local pr = PseudoRandom(blockseed + 143)
-	if pr:next(120) ~= 54 then return end
+	if pr:next(1, 120) ~= 54 then return end
 	local opacity_counter = #minetest.find_nodes_in_area(vector.add(minp, decrease_scan_area), vector.subtract(maxp, decrease_scan_area), "group:opaque")
 	if opacity_counter < threshold then return end
-	place(minp, nil,pr)
+	place(minp, nil, pr)
 end)
diff --git a/mods/ITEMS/mcl_amethyst/grow.lua b/mods/ITEMS/mcl_amethyst/grow.lua
index 059fede5a..97d379ba2 100644
--- a/mods/ITEMS/mcl_amethyst/grow.lua
+++ b/mods/ITEMS/mcl_amethyst/grow.lua
@@ -1,49 +1,54 @@
 local S = minetest.get_translator(minetest.get_current_modname())
 
-function mcl_amethyst.grow_amethyst_bud(pos, ignore_budding_amethyst)
-	local node = minetest.get_node(pos)
+local interval = 10
+local chance = 5
+
+local function grow(pos, node)
 	local def = minetest.registered_nodes[node.name]
-	if not (def and def.groups and def.groups.amethyst_buds) then return end
 	local next_gen = def._mcl_amethyst_next_grade
 	if not next_gen then return end
 
-	-- Check Budding Amethyst
-	if not ignore_budding_amethyst then
-		local dir = minetest.wallmounted_to_dir(node.param2)
-		local ba_pos = vector.add(pos, dir)
-		local ba_node = minetest.get_node(ba_pos)
-		if ba_node.name ~= "mcl_amethyst:budding_amethyst_block" then return end
-	end
+	local dir = minetest.wallmounted_to_dir(node.param2)
+	local ba_pos = vector.add(pos, dir)
+	local ba_node = minetest.get_node(ba_pos)
+	if ba_node.name ~= "mcl_amethyst:budding_amethyst_block" then return end
+
 	local swap_result = table.copy(node)
 	swap_result.name = next_gen
 	minetest.swap_node(pos, swap_result)
-	return true
 end
 
-local function get_growing_tool_handle(ignore)
-	return function(itemstack, user, pointed_thing)
-		if not user:is_player() then return end
-		local name = user:get_player_name()
-		local pos = minetest.get_pointed_thing_position(pointed_thing)
-		if minetest.is_protected(pos, name) then
-			minetest.record_protection_violation(pos, name)
-			minetest.chat_send_player(name, S("Not allowed to use Amethyst Growing Tool in a protected area!"))
-			return
-		end
-		if not mcl_amethyst.grow_amethyst_bud(pos, ignore) then
-			minetest.chat_send_player(name, S("Growing Failed"))
-		end
-	end
-end
-
-minetest.register_tool("mcl_amethyst:growing_tool",{
-	description = S("Amethyst Growing Tool"),
-	on_use = get_growing_tool_handle(true),
-	on_place = get_growing_tool_handle(false),
-	inventory_image = "amethyst_cluster.png^amethyst_shard.png",
-	groups = {
-		tool = 1,
-	},
+minetest.register_abm({
+	label = "Amethyst Bud Growth",
+	nodenames = {"group:amethyst_buds"},
+	neighbors = {"mcl_amethyst:budding_amethyst_block"},
+	interval = interval,
+	chance = chance,
+	action = grow,
 })
 
-mcl_wip.register_experimental_item("mcl_amethyst:growing_tool")
+local all_directions = {
+	vector.new(1,0,0),
+	vector.new(0,1,0),
+	vector.new(0,0,1),
+	vector.new(-1,0,0),
+	vector.new(0,-1,0),
+	vector.new(0,0,-1),
+}
+
+minetest.register_abm({
+	label = "Spawn Amethyst Bud",
+	nodenames = {"mcl_amethyst:budding_amethyst_block"},
+	neighbors = {"air", "group:water"},
+	interval = 20,
+	chance = 2,
+	action = function(pos)
+		local check_pos = vector.add(all_directions[math.random(1, #all_directions)], pos)
+		local check_node = minetest.get_node(check_pos)
+		local check_node_name = check_node.name
+		if check_node_name ~= "air" and minetest.get_item_group(check_node_name, "water") == 0 then return end
+		local param2 = minetest.dir_to_wallmounted(vector.subtract(pos, check_pos))
+		local new_node = {name = "mcl_amethyst:medium_amethyst_bud", param2 = param2}
+		minetest.swap_node(check_pos, new_node)
+	end,
+})
diff --git a/mods/ITEMS/mcl_amethyst/mod.conf b/mods/ITEMS/mcl_amethyst/mod.conf
index 333117482..28215a743 100644
--- a/mods/ITEMS/mcl_amethyst/mod.conf
+++ b/mods/ITEMS/mcl_amethyst/mod.conf
@@ -1,5 +1,5 @@
 name = mcl_amethyst
-author = Emojiminetest
+author = Emojiminetest, kay27
 description = Amethyst related stuff for MCL5
 depends = mcl_init, mcl_core, mcl_wip, mcl_mapgen, mcl_structures, mcl_blackstone
 optional_depends = mcl_spyglass, mcl_copper