Add ability to specify coordinates for /spawnentity
[oweals/minetest.git] / builtin / game / misc.lua
index 82cc527cd821d71d0f04387e864e88f8f5d4fd9b..7fa95742e969a1896f4b654040405a8373b26192 100644 (file)
@@ -4,36 +4,72 @@
 -- Misc. API functions
 --
 
-minetest.timers_to_add = {}
-minetest.timers = {}
-minetest.register_globalstep(function(dtime)
-       for _, timer in ipairs(minetest.timers_to_add) do
-               table.insert(minetest.timers, timer)
-       end
-       minetest.timers_to_add = {}
-       for index, timer in ipairs(minetest.timers) do
-               timer.time = timer.time - dtime
+local timers = {}
+local mintime
+local function update_timers(delay)
+       mintime = false
+       local sub = 0
+       for index = 1, #timers do
+               index = index - sub
+               local timer = timers[index]
+               timer.time = timer.time - delay
                if timer.time <= 0 then
                        timer.func(unpack(timer.args or {}))
-                       table.remove(minetest.timers,index)
+                       table.remove(timers, index)
+                       sub = sub + 1
+               elseif mintime then
+                       mintime = math.min(mintime, timer.time)
+               else
+                       mintime = timer.time
                end
        end
+end
+
+local timers_to_add
+local function add_timers()
+       for _, timer in ipairs(timers_to_add) do
+               table.insert(timers, timer)
+       end
+       timers_to_add = false
+end
+
+local delay = 0
+core.register_globalstep(function(dtime)
+       if not mintime then
+               -- abort if no timers are running
+               return
+       end
+       if timers_to_add then
+               add_timers()
+       end
+       delay = delay + dtime
+       if delay < mintime then
+               return
+       end
+       update_timers(delay)
+       delay = 0
 end)
 
-function minetest.after(time, func, ...)
+function core.after(time, func, ...)
        assert(tonumber(time) and type(func) == "function",
-                       "Invalid minetest.after invocation")
-       table.insert(minetest.timers_to_add, {time=time, func=func, args={...}})
+                       "Invalid core.after invocation")
+       if not mintime then
+               mintime = time
+               timers_to_add = {{time=time+delay, func=func, args={...}}}
+               return
+       end
+       mintime = math.min(mintime, time)
+       timers_to_add = timers_to_add or {}
+       timers_to_add[#timers_to_add+1] = {time=time+delay, func=func, args={...}}
 end
 
-function minetest.check_player_privs(name, privs)
-       local player_privs = minetest.get_player_privs(name)
+function core.check_player_privs(name, privs)
+       local player_privs = core.get_player_privs(name)
        local missing_privileges = {}
        for priv, val in pairs(privs) do
-               if val then
-                       if not player_privs[priv] then
-                               table.insert(missing_privileges, priv)
-                       end
+               if val
+               and not player_privs[priv] then
+                       table.insert(missing_privileges, priv)
                end
        end
        if #missing_privileges > 0 then
@@ -44,15 +80,15 @@ end
 
 local player_list = {}
 
-minetest.register_on_joinplayer(function(player)
+core.register_on_joinplayer(function(player)
        player_list[player:get_player_name()] = player
 end)
 
-minetest.register_on_leaveplayer(function(player)
+core.register_on_leaveplayer(function(player)
        player_list[player:get_player_name()] = nil
 end)
 
-function minetest.get_connected_players()
+function core.get_connected_players()
        local temp_table = {}
        for index, value in pairs(player_list) do
                if value:is_player_connected() then
@@ -62,11 +98,11 @@ function minetest.get_connected_players()
        return temp_table
 end
 
-function minetest.hash_node_position(pos)
+function core.hash_node_position(pos)
        return (pos.z+32768)*65536*65536 + (pos.y+32768)*65536 + pos.x+32768
 end
 
-function minetest.get_position_from_hash(hash)
+function core.get_position_from_hash(hash)
        local pos = {}
        pos.x = (hash%65536) - 32768
        hash = math.floor(hash/65536)
@@ -76,59 +112,46 @@ function minetest.get_position_from_hash(hash)
        return pos
 end
 
-function minetest.get_item_group(name, group)
-       if not minetest.registered_items[name] or not
-                       minetest.registered_items[name].groups[group] then
+function core.get_item_group(name, group)
+       if not core.registered_items[name] or not
+                       core.registered_items[name].groups[group] then
                return 0
        end
-       return minetest.registered_items[name].groups[group]
-end
-
-function minetest.get_node_group(name, group)
-       minetest.log("deprecated", "Deprecated usage of get_node_group, use get_item_group instead")
-       return minetest.get_item_group(name, group)
+       return core.registered_items[name].groups[group]
 end
 
-function minetest.string_to_pos(value)
-       local p = {}
-       p.x, p.y, p.z = string.match(value, "^([%d.-]+)[, ] *([%d.-]+)[, ] *([%d.-]+)$")
-       if p.x and p.y and p.z then
-               p.x = tonumber(p.x)
-               p.y = tonumber(p.y)
-               p.z = tonumber(p.z)
-               return p
-       end
-       local p = {}
-       p.x, p.y, p.z = string.match(value, "^%( *([%d.-]+)[, ] *([%d.-]+)[, ] *([%d.-]+) *%)$")
-       if p.x and p.y and p.z then
-               p.x = tonumber(p.x)
-               p.y = tonumber(p.y)
-               p.z = tonumber(p.z)
-               return p
-       end
-       return nil
+function core.get_node_group(name, group)
+       core.log("deprecated", "Deprecated usage of get_node_group, use get_item_group instead")
+       return core.get_item_group(name, group)
 end
 
-assert(minetest.string_to_pos("10.0, 5, -2").x == 10)
-assert(minetest.string_to_pos("( 10.0, 5, -2)").z == -2)
-assert(minetest.string_to_pos("asd, 5, -2)") == nil)
-
-function minetest.setting_get_pos(name)
-       local value = minetest.setting_get(name)
+function core.setting_get_pos(name)
+       local value = core.setting_get(name)
        if not value then
                return nil
        end
-       return minetest.string_to_pos(value)
+       return core.string_to_pos(value)
 end
 
 -- To be overriden by protection mods
-function minetest.is_protected(pos, name)
+function core.is_protected(pos, name)
        return false
 end
 
-function minetest.record_protection_violation(pos, name)
-       for _, func in pairs(minetest.registered_on_protection_violation) do
+function core.record_protection_violation(pos, name)
+       for _, func in pairs(core.registered_on_protection_violation) do
                func(pos, name)
        end
 end
 
+local raillike_ids = {}
+local raillike_cur_id = 0
+function core.raillike_group(name)
+       local id = raillike_ids[name]
+       if not id then
+               raillike_cur_id = raillike_cur_id + 1
+               raillike_ids[name] = raillike_cur_id
+               id = raillike_cur_id
+       end
+       return id
+end