mirror of
https://github.com/sys4-fr/server-nalc.git
synced 2024-12-25 18:20:36 +01:00
18118226ab
- Calculate 3D cube from multiple markers instead of requiring a rectangle of 4 - Sort area lists nearest first - Increased number of markers (20 to 50) - Crashfix
554 lines
19 KiB
Lua
Executable File
554 lines
19 KiB
Lua
Executable File
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-- markers are useful for measuring distances and for marking areas
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-- markers are protected from digging by other players for one day
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-- (the protection for the *marker* auto-expires then, and it can be digged)
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markers = {}
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-- stores up to 4 marker positions for each player
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markers.positions = {}
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-- store the positions of that many markers for each player (until server restart)
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markers.MAX_MARKERS = 50;
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-- the protection against digging of the marker by other players expires after this time
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markers.EXPIRE_AFTER = 60*60*24;
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-- self-protected areas can not get higher than 100 blocks
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markers.MAX_HEIGHT = 100;
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-- only areas up to this size (in square meters) can be protected
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markers.MAX_SIZE = 1024; -- 32m * 32m = 1024 m^2
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dofile(minetest.get_modpath("markers").."/areas.lua");
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dofile(minetest.get_modpath("markers").."/marker_stone.lua");
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dofile(minetest.get_modpath("markers").."/land_title_register.lua");
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-- returns the first area found
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markers.get_area_by_pos1_pos2 = function(pos1, pos2)
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for id, area in pairs(areas.areas) do
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if( ((area.pos1.x == pos1.x and area.pos1.z == pos1.z )
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or (area.pos1.x == pos1.x and area.pos1.z == pos2.z )
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or (area.pos1.x == pos2.x and area.pos1.z == pos1.z )
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or (area.pos1.x == pos2.x and area.pos1.z == pos2.z ))
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and((area.pos2.x == pos1.x and area.pos2.z == pos1.z )
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or (area.pos2.x == pos1.x and area.pos2.z == pos2.z )
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or (area.pos2.x == pos2.x and area.pos2.z == pos1.z )
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or (area.pos2.x == pos2.x and area.pos2.z == pos2.z ))) then
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-- at least pos1 needs to have a hight value that fits in
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if( (area.pos1.y <= pos1.y and area.pos2.y >= pos1.y)
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or (area.pos1.y >= pos1.y and area.pos2.y <= pos1.y)) then
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local found = area;
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found[ 'id' ] = id;
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return found;
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end
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end
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end
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return nil;
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end
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-- this function is supposed to return a text string describing the price of the land between po1 and pos2
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-- You can return somethiing like "for free" or "the promise to build anything good" as well as any
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-- real prices in credits or materials - it's really just a text here.
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-- Make sure you do not charge the player more than what you ask here.
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markers.calculate_area_price_text = function( pos1, pos2, playername )
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local price = ( math.abs( pos1.x - pos2.x )+1 )
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* ( math.abs( pos1.z - pos2.z )+1 );
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-- * math.ceil( ( math.abs( pos1.y - pos2.y )+1 )/10);
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return tostring( price )..' credits';
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end
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markers.marker_placed = function( pos, placer, itemstack )
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if( not( pos ) or not( placer )) then
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return;
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end
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local meta = minetest.get_meta( pos );
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local name = placer:get_player_name();
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meta:set_string( 'infotext', 'Marker at '..minetest.pos_to_string( pos )..
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' (placed by '..tostring( name )..'). '..
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'Right-click to update.');
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meta:set_string( 'owner', name );
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-- this allows protection of this particular marker to expire
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meta:set_string( 'time', tostring( os.time()) );
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local txt = '';
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if( not( markers.positions[ name ] ) or #markers.positions[name]<1) then
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markers.positions[ name ] = {};
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markers.positions[ name ][ 1 ] = pos;
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minetest.chat_send_player( name,
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'First marker set to position '..
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minetest.pos_to_string( markers.positions[ name ][ 1 ] )..
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'. Please place a second marker to measure distance. '..
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'Place four markers in a square to define an area.');
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else
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table.insert( markers.positions[ name ], pos );
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local n = #markers.positions[ name ];
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local dx = markers.positions[ name ][ n ].x - markers.positions[ name ][ n-1 ].x;
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local dy = markers.positions[ name ][ n ].y - markers.positions[ name ][ n-1 ].y;
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local dz = markers.positions[ name ][ n ].z - markers.positions[ name ][ n-1 ].z;
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local dir_name = "unknown";
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local d = 0;
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if( dx == 0 and dz > 0 ) then dir_name = "north"; d = math.abs(dz);
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elseif( dx == 0 and dz < 0 ) then dir_name = "south"; d = math.abs(dz);
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elseif( dz == 0 and dx > 0 ) then dir_name = "east"; d = math.abs(dx);
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elseif( dz == 0 and dx < 0 ) then dir_name = "west"; d = math.abs(dx);
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elseif( dx == 0 and dz == 0 and dy > 0 ) then dir_name = "above"; d = math.abs(dy);
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elseif( dx == 0 and dz == 0 and dy < 0 ) then dir_name = "below"; d = math.abs(dy);
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else
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local area = (math.abs( dx )+1)
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* (math.abs( dz )+1);
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local volume = area * (math.abs( dy )+1);
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minetest.chat_send_player( name, 'This marker is at '..
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minetest.pos_to_string( markers.positions[ name ][ n ] )..', while the last one is at '..
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minetest.pos_to_string( markers.positions[ name ][ n-1 ] )..'. Distance (x/y/z): '..
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tostring(math.abs(dx))..'/'..
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tostring(math.abs(dy))..'/'..
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tostring(math.abs(dz))..
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'. Area: '..tostring( area )..' m^2. Volume: '..tostring( volume )..' m^3.');
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end
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-- this marker is aligned to the last one
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if( d > 0 ) then
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minetest.chat_send_player( name, 'Marker placed at '..minetest.pos_to_string( pos )..
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'. Relative to the marker you placed before, this one is '..
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tostring( d )..' m '..dir_name..'.');
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end
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-- make sure the list does not grow too large
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if( n > markers.MAX_MARKERS and minetest.get_player_privs(name)["megabuilder"] ~= true) then
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table.remove( markers.positions[ name ], 1 );
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end
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end
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end
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markers.marker_can_dig = function(pos,player)
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if( not( pos ) or not( player )) then
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return true;
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end
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local meta = minetest.get_meta( pos );
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local owner = meta:get_string( 'owner' );
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local time = meta:get_string( 'time' );
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-- can the marker be removed?
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if( not( owner )
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or owner==''
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or not( time )
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or time==''
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or (os.time() - tonumber( time )) > markers.EXPIRE_AFTER ) then
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return true;
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-- marker whose data got lost anyway
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elseif( not( markers.positions[ owner ] )
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or #markers.positions[ owner ] < 1 ) then
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return true;
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-- marker owned by someone else and still in use
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elseif( owner ~= player:get_player_name()) then
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minetest.chat_send_player( player:get_player_name(),
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'Sorry, this marker belongs to '..tostring( owner )..
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'. If you still want to remove it, try again in '..
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( tostring( markers.EXPIRE_AFTER + tonumber( time ) - os.time()))..' seconds.');
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return false;
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end
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return true;
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end
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markers.marker_after_dig_node = function(pos, oldnode, oldmetadata, digger)
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if( not(oldmetadata ) or not(oldmetadata['fields'])) then
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return;
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end
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local owner = oldmetadata['fields']['owner'];
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if( not( owner )
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or owner==''
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or not( markers.positions[ owner ] )
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or #markers.positions[ owner ] < 1 ) then
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return;
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end
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-- remove the markers position from our table of stored positions
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local found = 0;
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for i,v in ipairs( markers.positions[ owner ] ) do
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if( v.x == pos.x
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and v.y == pos.y
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and v.z == pos.z ) then
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found = i;
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end
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end
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if( found ~= 0 ) then
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table.remove( markers.positions[ owner ], found );
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end
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return true;
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end
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--this function returns a min_pos and max_pos that are the corners
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--of a box that contains ALL of the players active markers.
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markers.get_box_from_markers = function(name)
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if (not name) or (not (markers.positions[ name ][ 1 ] )) then
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return {x=0,y=0,z=0},{x=1,y=1,z=1}
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end
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local min_pos={}
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min_pos.x = markers.positions[ name ][ 1 ].x
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min_pos.y = markers.positions[ name ][ 1 ].y
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min_pos.z = markers.positions[ name ][ 1 ].z
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local max_pos={}
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max_pos.x = markers.positions[ name ][ 1 ].x
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max_pos.y = markers.positions[ name ][ 1 ].y
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max_pos.z = markers.positions[ name ][ 1 ].z
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for i,p in ipairs( markers.positions[ name ] ) do
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if p.x < min_pos.x then min_pos.x = p.x end
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if p.x > max_pos.x then max_pos.x = p.x end
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if p.y < min_pos.y then min_pos.y = p.y end
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if p.y > max_pos.y then max_pos.y = p.y end
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if p.z < min_pos.z then min_pos.z = p.z end
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if p.z > max_pos.z then max_pos.z = p.z end
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end
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--print("getbox: min_pos.x="..min_pos.x.." y="..min_pos.y.." z="..min_pos.z)
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--print(" : max_pos.x="..max_pos.x.." y="..max_pos.y.." z="..max_pos.z)
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return min_pos, max_pos
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end --get_box_from_markers
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markers.get_marker_formspec = function(player, pos, error_msg)
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local formspec = "";
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local meta = minetest.get_meta( pos );
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local owner = meta:get_string( 'owner' );
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local name = player:get_player_name();
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local formspec_info = "size[6,4]"..
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"button_exit[2,2.5;1,0.5;abort;OK]"..
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"textarea[1,1;4,2;info;Information;";
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if( owner ~= nil and owner ~= '' and owner ~= name ) then
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return formspec_info.."This marker\ncan only be used by\n"..tostring( owner )..", who\nplaced the markers.]";
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end
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if( not( markers.positions[ name ]) or #markers.positions[name]<1) then
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return formspec_info.."Information about the positions\nof your other markers\ngot lost.\nPlease dig and place\nyour markers again!]";
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end
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local n = #markers.positions[ name ];
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if ( n < 2 ) then
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return formspec_info.."Please place 2 or more markers\n - at least one in each corner\n of your area first]";
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end
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local coords={}
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coords[1],coords[2] = markers.get_box_from_markers(name)
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-- save data
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meta:set_string( 'coords', minetest.serialize( coords ) );
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if( not( coords ) or #coords < 2 or not( coords[1] ) or not( coords[2] )) then
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return formspec_info.."Error in markers.]";
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end
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-- the coordinates are set; we may present an input form now
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-- has the area already been defined?
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local area = markers.get_area_by_pos1_pos2( coords[1], coords[2] );
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local size = (math.abs( coords[1].x - coords[2].x )+1)
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* (math.abs( coords[1].z - coords[2].z )+1);
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-- check if area is too large
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if( markers.MAX_SIZE < size and minetest.get_player_privs(name)["megabuilder"] ~= true) then
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return formspec_info.."Error: You can only protect\nareas of up to "..tostring( markers.MAX_SIZE ).."m^2.\n"..
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"Your marked area is "..tostring( size ).." m^2 large.]";
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end
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local formspec = 'size[10,7]'..
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'label[0.5,1;The area you marked extends from]'..
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'label[4.7,1;'..minetest.pos_to_string( coords[ 1 ] )..' to '..minetest.pos_to_string( coords[ 2 ] )..'.]'..
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'label[4.7,1.5;It spans '..tostring( math.abs( coords[1].x - coords[2].x )+1 )..
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' x '..tostring( math.abs( coords[1].z - coords[2].z )+1 )..
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' = '..tostring( size )..' m^2.]';
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-- display the error message (if there is any)
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if( error_msg ~= nil ) then
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formspec = formspec..
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'label[0.5,0.0;Error: ]'..
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'textarea[5.0,0;4,1.5;info;;'..error_msg..']';
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end
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if( area and area['id'] ) then
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formspec = formspec..
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'label[0.5,2.0;This is area number ]'..
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'label[4.7,2.0;'..tostring( area['id'] )..'.]'..
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'label[0.5,2.5;It is owned by ]'..
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'label[4.7,2.5;'..tostring( area['owner'] )..'.]'..
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'label[0.5,3.0;The area is called ]'..
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'label[4.7,3.0;'..tostring( area['name'] )..'.]'..
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"button_exit[2,6.0;2,0.5;abort;OK]";
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else
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formspec = formspec..
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'label[0.5,2.0;Buying this area will cost you ]'..
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'label[4.7,2.0;'..markers.calculate_area_price_text( coords[1], coords[2], name )..'.]'..
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'label[0.5,3.0;Your area ought to go..]'..
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'label[0.5,3.5;this many blocks up:]'..
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'field[5.0,4.0;1,0.5;add_height;;40]'..
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'label[6.0,3.5;(above '..coords[2].y..' )]'..
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'label[0.5,4.0;and this many blocks down:]'..
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'field[5.0,4.5;1,0.5;add_depth;;10]'..
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'label[6.0,4.0;(below '..coords[1].y..' )]'..
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'label[0.5,4.5;The area shall be named]'..
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'field[5.0,5.0;6,0.5;set_area_name;;please enter a name]'..
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"button_exit[2,6.0;2,0.5;abort;Abort]"..
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-- code the position in the "Buy area" field
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"button_exit[6,6.0;2,0.5;"..minetest.pos_to_string(pos)..";Buy area]";
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end
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return formspec;
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end
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-- protect/buy an area
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markers.marker_on_receive_fields = function(pos, formname, fields, sender)
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if( not( pos )) then
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minetest.chat_send_player( name, 'Sorry, could not find the marker you where using to access this formspec.' );
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return;
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end
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local meta = minetest.get_meta( pos );
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local name = sender:get_player_name();
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local coords_string = meta:get_string( 'coords' );
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if( not( coords_string ) or coords_string == '' ) then
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minetest.chat_send_player( name, 'Could not find marked area. Please dig and place your markers again!');
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return;
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end
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local coords = minetest.deserialize( coords_string );
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-- do not protect areas twice
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local area = markers.get_area_by_pos1_pos2( coords[1], coords[2] );
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if( area ) then
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minetest.chat_send_player( name, 'This area is already protected.');
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return;
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end
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-- check input
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local add_height = tonumber( fields['add_height'] );
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local add_depth = tonumber( fields['add_depth'] );
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local error_msg = '';
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if( not( add_height ) or add_height < 0 or (add_height > markers.MAX_HEIGHT and minetest.get_player_privs(name)["megabuilder"] ~= true)) then
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minetest.chat_send_player( name, 'Please enter a number between 0 and '..tostring( markers.MAX_HEIGHT )..
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' in the field where the height of your area is requested. Your area will stretch that many blocks '..
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'up into the sky from the position of this marker onward.');
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error_msg = 'The height value\nhas to be larger than 0\nand smaller than '..tostring( markers.MAX_HEIGHT );
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elseif( not( add_depth ) or add_depth < 0 or (add_depth > markers.MAX_HEIGHT and minetest.get_player_privs(name)["megabuilder"] ~= true)) then
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minetest.chat_send_player( name, 'Please enter a number between 0 and '..tostring( markers.MAX_HEIGHT )..
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' in the field where the depth of your area is requested. Your area will stretch that many blocks '..
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'into the ground from the position of this marker onward.');
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error_msg = 'The depth value\nhas to be larger than 0\nand smaller than '..tostring( markers.MAX_HEIGHT );
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elseif( add_height + add_depth > markers.MAX_HEIGHT ) and minetest.get_player_privs(name)["megabuilder"] ~= true then
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minetest.chat_send_player( name, 'Sorry, your area exceeds the height limit. Height and depth added have to '..
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'be smaller than '..tostring( markers.MAX_HEIGHT )..'.');
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error_msg = 'height + depth has to\nbe smaller than '..tostring( markers.MAX_HEIGHT )..'.'
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elseif( not( fields[ 'set_area_name' ] ) or fields['set_area_name'] == 'please enter a name' ) then
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minetest.chat_send_player( name, 'Please provide a name for your area, i.e. \"'..
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tostring( name )..'s first house\" The name ought to describe what you intend to build here.');
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error_msg = 'Please provide a\nname for your area!';
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else
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error_msg = nil;
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end
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if( error_msg ~= nil ) then
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minetest.show_formspec( name, "markers:mark", markers.get_marker_formspec(sender, pos, error_msg));
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return;
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end
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-- those coords lack the height component
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local pos1 = coords[1];
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local pos2 = coords[2];
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-- apply height values from the formspeck
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pos1.y = pos1.y - add_depth;
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pos2.y = pos2.y + add_height;
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pos1, pos2 = areas:sortPos( pos1, pos2 );
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--minetest.chat_send_player('singleplayer','INPUT: '..minetest.serialize( pos1 )..' pos2: '..minetest.serialize( pos2 ));
|
|
minetest.log("action", "[markers] /protect invoked, owner="..name..
|
|
" areaname="..fields['set_area_name']..
|
|
" startpos="..minetest.pos_to_string(pos1)..
|
|
" endpos=" ..minetest.pos_to_string(pos2));
|
|
|
|
local canAdd, errMsg = areas:canPlayerAddArea(pos1, pos2, name)
|
|
if not canAdd then
|
|
minetest.chat_send_player(name, "You can't protect that area: "..errMsg)
|
|
minetest.show_formspec( name, "markers:mark", markers.get_marker_formspec(sender, pos, errMsg));
|
|
return
|
|
end
|
|
|
|
local id = areas:add(name, fields['set_area_name'], pos1, pos2, nil)
|
|
areas:save()
|
|
|
|
minetest.chat_send_player(name, "Area protected. ID: "..id)
|
|
|
|
minetest.show_formspec( name, "markers:mark", markers.get_marker_formspec(sender, pos, nil));
|
|
end
|
|
|
|
|
|
|
|
-- formspec input needs to be handled diffrently
|
|
markers.form_input_handler = function( player, formname, fields)
|
|
|
|
if( formname == "markers:mark" ) then
|
|
|
|
|
|
if( not(fields) or fields['abort']) then
|
|
return true;
|
|
end
|
|
|
|
--- decode the position of the marker (which is hidden in the Buy-buttons name
|
|
local pos = {};
|
|
for k, v in pairs( fields ) do
|
|
if( v == 'Buy area' ) then
|
|
pos = minetest.string_to_pos( k );
|
|
end
|
|
end
|
|
if( pos and pos.x and pos.y and pos.z ) then
|
|
markers.marker_on_receive_fields(pos, formname, fields, player);
|
|
end
|
|
return true;
|
|
|
|
|
|
elseif( formname == "markers:info"
|
|
and player
|
|
and markers.menu_data_by_player[ player:get_player_name() ] ) then
|
|
|
|
local res = markers.form_input_handler_areas( player, formname, fields);
|
|
if( res ) then
|
|
return true;
|
|
end
|
|
|
|
-- TODO
|
|
-- minetest.chat_send_player('singleplayer','MARKERS:INFO WITH '..minetest.serialize( fields ));
|
|
|
|
else
|
|
-- TODO
|
|
-- minetest.chat_send_player('singleplayer','YOU CALLED '..tostring( formname )..' WITH '..minetest.serialize( fields ));
|
|
|
|
end
|
|
|
|
return false;
|
|
|
|
end
|
|
|
|
minetest.register_on_player_receive_fields( markers.form_input_handler)
|
|
|
|
|
|
|
|
|
|
minetest.register_node("markers:mark", {
|
|
description = "Marker",
|
|
tiles = {"markers_mark.png"},
|
|
drawtype = "nodebox",
|
|
paramtype = "light",
|
|
paramtype2 = "facedir",
|
|
groups = {snappy=2,choppy=2,oddly_breakable_by_hand=1}, --fixed on both buttons dig client crash
|
|
light_source = 1,
|
|
node_box = {
|
|
type = "fixed",
|
|
fixed = {
|
|
{ -0.1, -0.5, -0.1, 0.1, 1.5, 0.1 },
|
|
},
|
|
},
|
|
|
|
after_place_node = function(pos, placer, itemstack)
|
|
markers.marker_placed( pos, placer, itemstack );
|
|
end,
|
|
|
|
-- the node is digged immediately, so we may as well do all the work in can_dig (any wrong digs are not that critical)
|
|
can_dig = function(pos,player)
|
|
return markers.marker_can_dig( pos, player );
|
|
end,
|
|
|
|
after_dig_node = function(pos, oldnode, oldmetadata, digger)
|
|
return markers.marker_after_dig_node( pos, oldnode, oldmetadata, digger );
|
|
end,
|
|
|
|
on_rightclick = function(pos, node, clicker)
|
|
|
|
minetest.show_formspec( clicker:get_player_name(),
|
|
"markers:mark",
|
|
markers.get_marker_formspec(clicker, pos, nil)
|
|
);
|
|
end,
|
|
})
|
|
|
|
|
|
minetest.register_craft({
|
|
output = "markers:mark 4",
|
|
recipe = { { "group:stick" },
|
|
{ "default:apple" },
|
|
{ "group:stick" },
|
|
} });
|
|
|