Add End Spikes

mods/MAPGEN/mcl_structures/end_spawn.lua

@@ -28,3 +28,46 @@ mcl_structures.register_structure("end_exit_portal_open",{
 		modpath.."/schematics/mcl_structures_end_exit_portal.mts"
 	},
 })
+
+local function get_tower(p,h,tbl)
+	for i = 1,h do
+		table.insert(tbl,vector.offset(p,0,i,0))
+	end
+end
+
+local function make_endspike(pos,width,height)
+	local nn = minetest.find_nodes_in_area(vector.offset(pos,-width/2,0,-width/2),vector.offset(pos,width/2,0,width/2),{"air","group:solid"})
+	table.sort(nn,function(a, b)
+		return vector.distance(pos, a) < vector.distance(pos, b)
+	end)
+	local nodes = {}
+	for i = 1,math.ceil(#nn*0.55) do
+		get_tower(nn[i],height,nodes)
+	end
+	minetest.bulk_set_node(nodes,{ name="mcl_core:obsidian"} )
+	return vector.offset(pos,0,height,0)
+end
+
+local function get_points_on_circle(pos,r,n)
+	local rt = {}
+	for i=1, n do
+		table.insert(rt,vector.offset(pos,r * math.cos(((i-1)/n) * (2*math.pi)),0,  r* math.sin(((i-1)/n) * (2*math.pi)) ))
+	end
+	return rt
+end
+
+mcl_structures.register_structure("end_spike",{
+	static_pos =get_points_on_circle(vector.offset(mcl_vars.mg_end_exit_portal_pos,0,-20,0),43,10),
+	place_func = function(pos,def,pr)
+		local d = pr:next(6,12)
+		local h = d * pr:next(4,6)
+		local p1 = vector.add(pos,-d/2,0,-d/2)
+		local p2 = vector.add(pos,d/2,h+5,d/2)
+		minetest.emerge_area(p1, p2, function(blockpos, action, calls_remaining, param)
+			if calls_remaining ~= 0 then return end
+			local s = make_endspike(pos,d,h)
+			minetest.set_node(vector.offset(s,0,1,0),{name="mcl_core:bedrock"})
+			minetest.add_entity(vector.offset(s,0,2,0),"mcl_end:crystal")
+		end)
+	end,
+})