rand on new player, rename original random_spawn to spawnrand

* added minetest.register_on_joinplayer callback to randomized new player
* renaming to plan to use two kind of spawn mods.. this is for randown
* rename random_spawn to spawnrand
* reduce time wait to .1 second if no ground valid
* reduce time to search from 30 times cicle to 20

init.lua

@@ -1,15 +1,15 @@
-random_spawn = {}
+spawnrand = {}
 
-function random_spawn(player)
+function spawnrand(player)
    local elevation = 15
-   local radius = 1000
+   local radius = 500
    local posx = math.random(-radius, radius)
    local posz = math.random(-radius, radius)
    local new_spawn = {x = -174 + posx, y = elevation, z = 178 + posz}
    local node = minetest.get_node_or_nil(new_spawn)
    if not node or node.name == 'ignore' then
       minetest.emerge_area({x = new_spawn.x, y = new_spawn.y+30, z = new_spawn.z}, {x = new_spawn.x, y = new_spawn.y-30, z = new_spawn.z})
-      minetest.after(.5, find_ground, new_spawn, player)
+      minetest.after(.1, find_ground, new_spawn, player)
    else
       find_ground(new_spawn, player)
    end
@@ -23,13 +23,13 @@ function find_ground(pos, player)
       repeat
          local node = minetest.get_node({x = pos.x, y = pos.y - i, z = pos.z})
          i = i-1
-         if i == -30 then
-            random_spawn(player)
+         if i == -20 then
+            spawnrand(player)
          end
          if node.name ~= 'air' and node.name ~= 'ignore' then
             local protection = minetest.is_protected({x = pos.x, y = pos.y - i + 1, z = pos.z}, player)
             if protection then
-               random_spawn(player)
+               spawnrand(player)
 
             else
                player:setpos({x = pos.x, y = pos.y - i + 2, z = pos.z})
@@ -37,30 +37,31 @@ function find_ground(pos, player)
                finished = true
             end
          end
-      until finished == true or i < -30
+      until finished == true or i < -20
    elseif node.name ~= 'air' or node.name ~= 'ignore' then --Theoretically below ground
       local i = 1
       repeat
          local node = minetest.get_node({x = pos.x, y = pos.y + i, z = pos.z})
          i = i + 1
-         if i == 30 then
-            random_spawn(player)
+         if i == 20 then
+            spawnrand(player)
          end
          if node.name == 'air' then
            local protection = minetest.is_protected({x = pos.x, y = pos.y + i, z = pos.z}, player)
             if protection then
-               random_spawn(player)
+               spawnrand(player)
             else
                player:setpos({x = pos.x, y = pos.y + i, z = pos.z})
                minetest.set_node({x = pos.x, y = pos.y + i -1, z = pos.z}, {name = 'default:torch', param2 = 1})
-               i = 35
+               i = 25
             end
          end
       until node.name == 'air' or i >= 30
    end
 end
 
-minetest.register_node('random_spawn:node', {
+-- api and usage in game
+minetest.register_node('spawnrand:node', {
    description = 'tests the spawn function',
    inventory_image = 'default_gold_lump.png',
    tiles = {'default_gold_lump.png'},
@@ -68,6 +69,13 @@ minetest.register_node('random_spawn:node', {
    paramtype = 'light',
    light_source = 14,
    on_punch = function(pos, node, player)
-      random_spawn(player)
+      spawnrand(player)
    end
 })
+
+
+-- newspam in new player join
+minetest.register_on_newplayer(function(player)
+    spawnrand(player)
+end)
+