Add falling node variants of seagrass

API.md

@@ -21,6 +21,7 @@ All nodes can have these fields:
 
 * `_mcl_hardness`: Hardness of the block, ranges from 0 to infinity (represented by -1). Determines digging times. Default: 0
 * `_mcl_blast_resistance`: How well this block blocks and resists explosions. Default: 0
+* `_mcl_falling_node_alternative`: If set to an itemstring, the node will turn into this node before it starts to fall.
 * `_mcl_after_falling(pos)`: Called after a falling node finished falling and turned into a node.
 
 Use the `mcl_sounds` mod for the sounds.

mods/ENTITIES/mcl_falling_nodes/init.lua

@@ -79,10 +79,14 @@ minetest.register_entity(":__builtin:falling_node", {
 	meta = {},
 
 	set_node = function(self, node, meta)
+		local def = core.registered_nodes[node.name]
+		-- Change falling node if definition tells us to
+		if def and def._mcl_falling_node_alternative then
+			node.name = def._mcl_falling_node_alternative
+		end
+		local glow
 		self.node = node
 		self.meta = meta or {}
-		local def = core.registered_nodes[node.name]
-		local glow
 		-- Set correct entity yaw
 		if def and node.param2 ~= 0 then
 			if (def.paramtype2 == "facedir" or def.paramtype2 == "colorfacedir") then

mods/ITEMS/mcl_ocean/corals.lua

@@ -110,7 +110,7 @@ for c=1, #corals do
 		node_placement_prediction = "",
 		node_dig_prediction = "mcl_ocean:"..id.."_coral_block",
 		on_place = coral_on_place,
-		after_destruct = function(pos)
+		after_dig_node = function(pos)
 			local node = minetest.get_node(pos)
 			if minetest.get_item_group(node.name, "coral") == 0 then
 				minetest.set_node(pos, {name="mcl_ocean:"..id.."_coral_block"})
@@ -140,7 +140,7 @@ for c=1, #corals do
 		node_placement_prediction = "",
 		node_dig_prediction = "mcl_ocean:dead_"..id.."_coral_block",
 		on_place = coral_on_place,
-		after_destruct = function(pos)
+		after_dig_node = function(pos)
 			local node = minetest.get_node(pos)
 			if minetest.get_item_group(node.name, "coral") == 0 then
 				minetest.set_node(pos, {name="mcl_ocean:dead_"..id.."_coral_block"})
@@ -173,7 +173,7 @@ for c=1, #corals do
 		node_placement_prediction = "",
 		node_dig_prediction = "mcl_ocean:"..id.."_coral_block",
 		on_place = coral_on_place,
-		after_destruct = function(pos)
+		after_dig_node = function(pos)
 			local node = minetest.get_node(pos)
 			if minetest.get_item_group(node.name, "coral") == 0 then
 				minetest.set_node(pos, {name="mcl_ocean:"..id.."_coral_block"})
@@ -203,7 +203,7 @@ for c=1, #corals do
 		node_placement_prediction = "",
 		node_dig_prediction = "mcl_ocean:dead_"..id.."_coral_block",
 		on_place = coral_on_place,
-		after_destruct = function(pos)
+		after_dig_node = function(pos)
 			local node = minetest.get_node(pos)
 			if minetest.get_item_group(node.name, "coral") == 0 then
 				minetest.set_node(pos, {name="mcl_ocean:dead_"..id.."_coral_block"})

mods/ITEMS/mcl_ocean/seagrass.lua

@@ -4,6 +4,9 @@ local S = minetest.get_translator("mcl_ocean")
 local surfaces = {
 	{ "dirt", "mcl_core:dirt" },
 	{ "clay", "mcl_core:clay" },
+	{ "sand", "mcl_core:sand", 1 },
+	{ "redsand", "mcl_core:redsand", 1 },
+	{ "gravel", "mcl_core:gravel", 1 },
 }
 
 local function seagrass_on_place(itemstack, placer, pointed_thing)
@@ -76,6 +79,10 @@ minetest.register_craftitem("mcl_ocean:seagrass", {
 
 for s=1, #surfaces do
 	local def = minetest.registered_nodes[surfaces[s][2]]
+	local alt
+	if surfaces[s][3] == 1 then
+		alt = surfaces[s][2]
+	end
 	minetest.register_node("mcl_ocean:seagrass_"..surfaces[s][1], {
 		drawtype = "plantlike_rooted",
 		paramtype = "light",
@@ -97,16 +104,14 @@ for s=1, #surfaces do
 				{ -0.5, 0.5, -0.5, 0.5, 1.3, 0.5 },
 			},
 		},
-		groups = { dig_immediate = 3, deco_block = 1, plant = 1, seagrass = 1, },
+		groups = { dig_immediate = 3, deco_block = 1, plant = 1, seagrass = 1, falling_node = surfaces[s][3] },
 		sounds = mcl_sounds.node_sound_leaves_defaults({footstep = mcl_sounds.node_sound_dirt_defaults().footstep}),
 		node_dig_prediction = surfaces[s][2],
-		after_destruct = function(pos)
-			local node = minetest.get_node(pos)
-			if minetest.get_item_group(node.name, "seagrass") == 0 then
+		after_dig_node = function(pos)
 			minetest.set_node(pos, {name=surfaces[s][2]})
-			end
 		end,
 		drop = "",
+		_mcl_falling_node_alternative = alt,
 		_mcl_shears_drop = true,
 		_mcl_hardness = 0,
 		_mcl_blast_resistance = 0,