109 lines
2.8 KiB
Lua
109 lines
2.8 KiB
Lua
-- Defines the border of a world
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local world_border = tonumber(minetest.settings:get("world_border")) or 500
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-- Stop sign entities
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local north = nil
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local south = nil
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local west = nil
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local east = nil
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-- add_remove_border (stop sign)
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-- Adds entity if within 10 blocks of the player position
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function add_remove_border(entity, player_pos, entity_pos, is_rotated)
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if vector.distance(player_pos, entity_pos) < 10 then
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if not entity then
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entity = minetest.add_entity(entity_pos, "simpleworldborder:border", nil)
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if is_rotated then entity:set_rotation({x = 0, y = math.pi/2, z = 0 }) end
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else
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-- within range but entity already exists
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end
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else
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-- out of range
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if entity then
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-- remove entity
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entity:remove()
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return nil
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end
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end
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return entity
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end
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-- worldborder:border item
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-- represents "stop sign" for border
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minetest.register_entity("simpleworldborder:border", {
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initial_properties = {
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collide_with_objects = false,
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is_visible = true,
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visual = "upright_sprite",
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textures = {
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"simpleworldborder_stopsign.png",
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"simpleworldborder_stopsign.png"
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},
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visual_size = {
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x = 10,
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y = 10
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},
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backface_culling = false,
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glow = -1,
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shaded = false,
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static_save = false,
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use_texture_alpha = true
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}
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})
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minetest.register_globalstep(function(dtime)
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local players = minetest.get_connected_players()
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for i, player in ipairs(players) do
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local has_player_moved = false
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local name = player:get_player_name()
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local pos = vector.round(player:getpos())
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-- Check if player is close world border. If so, spawn worldborder entity!
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local northpos = vector.new(pos.x, pos.y, world_border)
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local southpos = vector.new(pos.x, pos.y, -world_border)
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local eastpos = vector.new(world_border, pos.y, pos.z)
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local westpos = vector.new(-world_border, pos.y, pos.z)
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north = add_remove_border(north, pos, northpos, false)
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south = add_remove_border(south, pos, southpos, false)
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east = add_remove_border(east, pos, eastpos, true)
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west = add_remove_border(west, pos, westpos, true)
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-- calculate new position of player
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if pos.x > world_border then
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pos.x = world_border
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has_player_moved = true
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elseif pos.x < -world_border then
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pos.x = -world_border
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has_player_moved = true
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end
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if pos.z > world_border then
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pos.z = world_border
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has_player_moved = true
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elseif pos.z < -world_border then
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pos.z = -world_border
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has_player_moved = true
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end
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-- move player if needed
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if pos and has_player_moved then
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player:setpos(pos)
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end
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-- move stop sign entities
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if east then
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east:moveto({x = world_border + 1, y = pos.y, z = pos.z})
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end
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if west then
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west:moveto({x = -world_border - 1, y = pos.y, z = pos.z})
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end
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if north then
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north:moveto({x = pos.x, y = pos.y, z = world_border + 1})
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end
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if south then
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south:moveto({x = pos.x, y = pos.y, z = -world_border - 1})
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end
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end
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end)
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