115 lines
3.6 KiB
Lua
115 lines
3.6 KiB
Lua
ropes.can_place_rope_in_node = function(target_node_name)
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if ropes.can_extend_into_nodes[target_node_name] == true then
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return true
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end
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local target_def = minetest.registered_nodes[target_node_name]
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if target_def then
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if target_def.drawtype == "airlike" and ropes.can_extend_into_airlike then
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return true
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end
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if target_def.groups and target_def.groups.ropes_can_extend_into then
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return true
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end
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end
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return false
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end
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ropes.make_rope_on_timer = function(rope_node_name)
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return function(pos, elapsed)
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local currentend = minetest.get_node(pos)
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local currentmeta = minetest.get_meta(pos)
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local currentlength = currentmeta:get_int("length_remaining")
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local placer_name = currentmeta:get_string("placer")
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local newpos = {x=pos.x, y=pos.y-1, z=pos.z}
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local newnode = minetest.get_node(newpos)
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local oldnode = minetest.get_node(pos)
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if currentlength > 1 and (not minetest.is_protected(newpos, placer_name)
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or minetest.check_player_privs(placer_name, "protection_bypass")) then
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if ropes.can_place_rope_in_node(newnode.name) then
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minetest.add_node(newpos, {name=currentend.name, param2=oldnode.param2})
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local newmeta = minetest.get_meta(newpos)
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newmeta:set_int("length_remaining", currentlength-1)
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newmeta:set_string("placer", placer_name)
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minetest.set_node(pos, {name=rope_node_name, param2=oldnode.param2})
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ropes.move_players_down(pos, 1)
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else
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local timer = minetest.get_node_timer( pos )
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timer:start( 1 )
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end
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end
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end
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end
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local data = {}
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local c_air = minetest.get_content_id("air")
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ropes.destroy_rope = function(pos, nodes)
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local top = pos.y
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local bottom = pos.y-15
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local voxel_manip = minetest.get_voxel_manip()
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local finished = false
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local ids_to_destroy = {}
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for _, node in pairs(nodes) do
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if minetest.registered_nodes[node] then
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ids_to_destroy[minetest.get_content_id(node)] = true
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end
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end
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while not finished do
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local emin, emax = voxel_manip:read_from_map({x=pos.x, y=bottom, z=pos.z}, {x=pos.x, y=top, z=pos.z})
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voxel_manip:get_data(data)
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local voxel_area = VoxelArea:new{MinEdge=emin, MaxEdge=emax}
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bottom = emin.y
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for y = top, bottom, -1 do
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local index = voxel_area:index(pos.x, y, pos.z)
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if ids_to_destroy[data[index]] then
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data[index] = c_air
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else
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finished = true
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break
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end
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end
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voxel_manip:set_data(data)
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voxel_manip:write_to_map()
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voxel_manip:update_map()
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top = bottom - 1
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bottom = bottom - 15
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end
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end
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ropes.hanging_after_destruct = function(pos, top_node, middle_node, bottom_node)
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local node = minetest.get_node(pos)
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if node.name == top_node or node.name == middle_node or node.name == bottom_node then
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return -- this was done by another ladder or rope node changing this one, don't react
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end
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pos.y = pos.y + 1 -- one up
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local node_above = minetest.get_node(pos)
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if node_above.name == middle_node then
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minetest.swap_node(pos, {name=bottom_node, param2=node_above.param2})
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end
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pos.y = pos.y - 2 -- one down
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local node_below = minetest.get_node(pos)
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if node_below.name == middle_node then
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ropes.destroy_rope(pos, {middle_node, bottom_node})
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elseif node_below.name == bottom_node then
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minetest.swap_node(pos, {name="air"})
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end
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end
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ropes.move_players_down = function(pos, radius)
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local all_objects = minetest.get_objects_inside_radius({x=pos.x, y=pos.y+radius, z=pos.z}, radius)
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local players = {}
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local _,obj
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for _,obj in pairs(all_objects) do
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if obj:is_player() then
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local obj_pos = obj:getpos()
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if math.abs(obj_pos.x-pos.x) < 0.5 and math.abs(obj_pos.z-pos.z) < 0.5 then
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obj:moveto({x=obj_pos.x, y=obj_pos.y-1, z=obj_pos.z}, true)
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end
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end
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end
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end
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