End exit portal openng / closing on dragon death / spawn

mods/ENTITIES/mobs_mc/ender_dragon.lua

@@ -64,8 +64,12 @@ mobs:register_mob("mobs_mc:enderdragon", {
 	end,
 	on_die = function(self, pos)
 		if self._portal_pos then
-			mcl_experience.throw_experience(pos, 11500) -- 500 + 11500 = 12000
-			minetest.set_node(minetest.string_to_pos(self._portal_pos), {name = mobs_mc.items.dragon_egg})
+			local portal_pos = minetest.string_to_pos(self._portal_pos)
+			mcl_structures.call_struct(portal_pos, "end_exit_portal_open")
+			if self._initial then
+				mcl_experience.throw_experience(pos, 11500) -- 500 + 11500 = 12000
+				minetest.set_node(vector.add(portal_pos, vector.new(3, 5, 3)), {name = mobs_mc.items.dragon_egg})
+			end
 		end
 	end,
 	fire_resistant = true,

mods/ITEMS/mcl_end/end_crystal.lua

@@ -58,7 +58,9 @@ local function spawn_crystal(pos)
 	for _, crystal in pairs(crystals) do
 		crystal_explode(crystal)
 	end
-	minetest.add_entity(vector.add(portal_center, {x = 0, y = 10, z = 0}), "mobs_mc:enderdragon")
+	local portal_pos = vector.add(portal_center, vector.new(-3, -1, -3))
+	mcl_structures.call_struct(portal_pos, "end_exit_portal")
+	minetest.add_entity(vector.add(portal_pos, vector.new(3, 11, 3)), "mobs_mc:enderdragon"):get_luaentity()._portal_pos = minetest.pos_to_string(portal_pos)
 end
 
 minetest.register_entity("mcl_end:crystal", {

mods/MAPGEN/mcl_mapgen_core/init.lua

@@ -54,8 +54,7 @@ local superflat = mg_name == "flat" and minetest.get_mapgen_setting("mcl_superfl
 
 local WITCH_HUT_HEIGHT = 3 -- Exact Y level to spawn witch huts at. This height refers to the height of the floor
 
--- End exit portal position. This is temporary.
--- TODO: Remove the exit portal generation when the ender dragon has been implemented.
+-- End exit portal position
 local END_EXIT_PORTAL_POS = table.copy(mcl_vars.mg_end_platform_pos)
 END_EXIT_PORTAL_POS.x = END_EXIT_PORTAL_POS.x - 30
 END_EXIT_PORTAL_POS.z = END_EXIT_PORTAL_POS.z - 3
@@ -1251,6 +1250,13 @@ local function generate_clay(minp, maxp, blockseed, voxelmanip_data, voxelmanip_
 	return lvm_used
 end
 
+local function generate_end_exit_portal(pos)
+	local dragon_entity = minetest.add_entity(vector.add(pos, vector.new(3, 11, 3)), "mobs_mc:enderdragon"):get_luaentity()
+	dragon_entity._initial = true
+	dragon_entity._portal_pos = minetest.pos_to_string(pos)
+	mcl_structures.call_struct(pos, "end_exit_portal")
+end
+
 -- TODO: Try to use more efficient structure generating code
 local function generate_structures(minp, maxp, blockseed, biomemap)
 	local chunk_has_desert_well = false
@@ -1490,11 +1496,11 @@ local function generate_structures(minp, maxp, blockseed, biomemap)
 		for y=maxp.y, minp.y, -1 do
 			local p = {x=END_EXIT_PORTAL_POS.x, y=y, z=END_EXIT_PORTAL_POS.z}
 			if minetest.get_node(p).name == "mcl_end:end_stone" then
-				mcl_structures.call_struct(p, "end_exit_portal")
+				generate_end_exit_portal(p)
 				return
 			end
 		end
-		mcl_structures.call_struct(END_EXIT_PORTAL_POS, "end_exit_portal")
+		generate_end_exit_portal(END_EXIT_PORTAL_POS)
 	end
 end
 

mods/MAPGEN/mcl_structures/init.lua

@@ -87,6 +87,8 @@ mcl_structures.call_struct = function(pos, struct_style, rotation, pr)
 		return mcl_structures.generate_fossil(pos, rotation, pr)
 	elseif struct_style == "end_exit_portal" then
 		return mcl_structures.generate_end_exit_portal(pos, rotation)
+	elseif struct_style == "end_exit_portal_open" then
+		return mcl_structures.generate_end_exit_portal_open(pos, rotation)
 	elseif struct_style == "end_portal_shrine" then
 		return mcl_structures.generate_end_portal_shrine(pos, rotation, pr)
 	end
@@ -313,11 +315,15 @@ mcl_structures.generate_fossil = function(pos, rotation, pr)
 end
 
 mcl_structures.generate_end_exit_portal = function(pos, rot)
-	minetest.add_entity(vector.add(pos, vector.new(3, 11, 3)), "mobs_mc:enderdragon"):get_luaentity()._portal_pos = minetest.pos_to_string(vector.add(pos, vector.new(3, 5, 3)))
 	local path = minetest.get_modpath("mcl_structures").."/schematics/mcl_structures_end_exit_portal.mts"
 	return mcl_structures.place_schematic(pos, path, rot or "0", nil, true)
 end
 
+mcl_structures.generate_end_exit_portal_open = function(pos, rot)
+	local path = minetest.get_modpath("mcl_structures").."/schematics/mcl_structures_end_exit_portal_open.mts"
+	return mcl_structures.place_schematic(pos, path, rot or "0", nil, true)
+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")
@@ -535,7 +541,7 @@ end
 
 -- Debug command
 minetest.register_chatcommand("spawnstruct", {
-	params = "desert_temple | desert_well | igloo | witch_hut | boulder | ice_spike_small | ice_spike_large | fossil | end_exit_portal | end_portal_shrine | nether_portal | dungeon",
+	params = "desert_temple | desert_well | igloo | witch_hut | boulder | ice_spike_small | ice_spike_large | fossil | end_exit_portal | end_exit_portal_opens | end_portal_shrine | nether_portal | dungeon",
 	description = S("Generate a pre-defined structure near your position."),
 	privs = {debug = true},
 	func = function(name, param)
@@ -567,6 +573,8 @@ minetest.register_chatcommand("spawnstruct", {
 			mcl_structures.generate_ice_spike_large(pos, rot, pr)
 		elseif param == "end_exit_portal" then
 			mcl_structures.generate_end_exit_portal(pos, rot, pr)
+		elseif param == "end_exit_portal_open" then
+			mcl_structures.generate_end_exit_portal_open(pos, rot, pr)
 		elseif 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