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Ralf Weinert 2019-05-07 15:41:20 +00:00 committed by GitHub
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7 changed files with 1461 additions and 298 deletions

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@ -1,3 +1,8 @@
This is work in progress.
April 2019 by downad
added support for raz (Regions, Areas and Zones for Minetest)
https://github.com/downad/raz

297
areas.lua
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@ -1,6 +1,135 @@
-- TODO: offer teleport button?
-- returns the first area found
markers.get_area_by_pos1_pos2 = function(pos1, pos2)
for id, area in pairs(areas.areas) do
if( ((area.pos1.x == pos1.x and area.pos1.z == pos1.z )
or (area.pos1.x == pos1.x and area.pos1.z == pos2.z )
or (area.pos1.x == pos2.x and area.pos1.z == pos1.z )
or (area.pos1.x == pos2.x and area.pos1.z == pos2.z ))
and((area.pos2.x == pos1.x and area.pos2.z == pos1.z )
or (area.pos2.x == pos1.x and area.pos2.z == pos2.z )
or (area.pos2.x == pos2.x and area.pos2.z == pos1.z )
or (area.pos2.x == pos2.x and area.pos2.z == pos2.z ))) then
-- at least pos1 needs to have a hight value that fits in
if( (area.pos1.y <= pos1.y and area.pos2.y >= pos1.y)
or (area.pos1.y >= pos1.y and area.pos2.y <= pos1.y)) then
local found = area;
found[ 'id' ] = id;
return found;
end
end
end
return nil;
end
-- protect/buy an area
markers.marker_on_receive_fields = function(pos, formname, fields, sender)
if( not( pos )) then
minetest.chat_send_player( name, 'Sorry, could not find the marker you where using to access this formspec.' );
return;
end
local meta = minetest.get_meta( pos );
local name = sender:get_player_name();
local coords_string = meta:get_string( 'coords' );
if( not( coords_string ) or coords_string == '' ) then
minetest.chat_send_player( name, 'Could not find marked area. Please dig and place your markers again!');
return;
end
local coords = minetest.deserialize( coords_string );
-- do not protect areas twice
local area = markers.get_area_by_pos1_pos2( coords[1], coords[2] );
if( area ) then
minetest.chat_send_player( name, 'This area is already protected.');
return;
end
-- check input
local add_height = tonumber( fields['add_height'] );
local add_depth = tonumber( fields['add_depth'] );
local error_msg = '';
if( not( add_height ) or add_height < 0 or add_height > markers.MAX_HEIGHT ) then
minetest.chat_send_player( name, 'Please enter a number between 0 and '..tostring( markers.MAX_HEIGHT )..
' in the field where the height of your area is requested. Your area will stretch that many blocks '..
'up into the sky from the position of this marker onward.');
error_msg = 'The height value\nhas to be larger than 0\nand smaller than '..tostring( markers.MAX_HEIGHT );
elseif( not( add_depth ) or add_depth < 0 or add_depth > markers.MAX_HEIGHT ) then
minetest.chat_send_player( name, 'Please enter a number between 0 and '..tostring( markers.MAX_HEIGHT )..
' in the field where the depth of your area is requested. Your area will stretch that many blocks '..
'into the ground from the position of this marker onward.');
error_msg = 'The depth value\nhas to be larger than 0\nand smaller than '..tostring( markers.MAX_HEIGHT );
elseif( add_height + add_depth > markers.MAX_HEIGHT ) then
minetest.chat_send_player( name, 'Sorry, your area exceeds the height limit. Height and depth added have to '..
'be smaller than '..tostring( markers.MAX_HEIGHT )..'.');
error_msg = 'height + depth has to\nbe smaller than '..tostring( markers.MAX_HEIGHT )..'.'
elseif( not( fields[ 'set_area_name' ] ) or fields['set_area_name'] == 'please enter a name' ) then
minetest.chat_send_player( name, 'Please provide a name for your area, i.e. \"'..
tostring( name )..'s first house\" The name ought to describe what you intend to build here.');
error_msg = 'Please provide a\nname for your area!';
else
error_msg = nil;
end
if( error_msg ~= nil ) then
minetest.show_formspec( name, "markers:mark", markers.get_marker_formspec(sender, pos, error_msg));
return;
end
-- those coords lack the height component
local pos1 = coords[1];
local pos2 = coords[2];
-- apply height values from the formspeck
pos1.y = pos1.y - add_depth;
pos2.y = pos2.y + add_height;
pos1, pos2 = areas:sortPos( pos1, pos2 );
--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
-- Temporary compatibility function - see minetest PR#1180
if not vector.interpolate then
vector.interpolate = function(pos1, pos2, factor)
@ -404,74 +533,6 @@ end
-- shows where the area (defined by pos1/pos2) is located relative to the given position pos
-- row_offset/col_offset are offsets for the formspec
markers.show_compass_marker = function( col_offset, row_offset, with_text, pos, pos1, pos2 )
local formspec = '';
-- TODO: show up/down information somehow
-- TODO: what if checked with a land claim register?
-- if possible, show how far the area streches into each direction relative to pos
if( pos.x >= pos1.x and pos.x <= pos2.x
and pos.y >= pos1.y and pos.y <= pos2.y
and pos.z >= pos1.z and pos.z <= pos2.z ) then
if( with_text ) then
formspec = formspec..
'label[0.5,5.5;Dimensions of the area in relation to..]'..
-- TODO: check if there is a marker; else write 'position you clicked on'
'label[4.7,5.5;the marker at '..minetest.pos_to_string( pos )..':]'..
'button_exit[8.0,5.5;2,0.5;list_areas_at;Local areas]';
end
formspec = formspec..
'image['..col_offset..','..row_offset..';1,1;markers_stone.png]'..
'label['..(col_offset-0.8)..','..(row_offset+0.05)..';'..tostring( pos.x - pos1.x )..' m W]'..
'label['..(col_offset+1.0)..','..(row_offset+0.05)..';'..tostring( pos2.x - pos.x )..' m E]'..
'label['..(col_offset+0.1)..','..(row_offset+0.80)..';'..tostring( pos.z - pos1.z )..' m S]'..
'label['..(col_offset+0.1)..','..(row_offset-0.80)..';'..tostring( pos2.z - pos.z )..' m N]';
-- else show how far the area is away
else
local starts_north = '';
local starts_south = '';
local starts_east = '';
local starts_west = '';
if( pos.z > pos2.z ) then
starts_north = '';
starts_south = tostring( pos.z - pos2.z )..' m S';
else
starts_north = tostring( pos1.z - pos.z )..' m N';
starts_south = '';
end
if( pos.x > pos2.x ) then
starts_east = '';
starts_west = tostring( pos.x - pos2.x )..' m W';
else
starts_east = tostring( pos1.x - pos.x )..' m E';
starts_west = '';
end
if( with_text ) then
formspec = formspec..
'label[0.5,5.5;Position of the area in relation to..]'..
-- TODO: check if there is a marker; else write 'position you clicked on'
'label[4.7,5.5;the marker at '..minetest.pos_to_string( pos )..':]'..
'button_exit[8.0,5.5;2,0.5;list_areas_at;Local areas]';
end
formspec = formspec..
'image['..col_offset..','..row_offset..';1,1;compass_side_top.png]'..
'label['..(col_offset-0.8)..','..(row_offset+0.05)..';'..starts_west..']'..
'label['..(col_offset+1.0)..','..(row_offset+0.05)..';'..starts_east..']'..
'label['..(col_offset+0.1)..','..(row_offset-0.80)..';'..starts_north..']'..
'label['..(col_offset+0.1)..','..(row_offset+0.80)..';'..starts_south..']';
end
return formspec;
end
-- formspec input needs to be handled diffrently
@ -863,3 +924,103 @@ markers.show_marker_stone_formspec = function( player, pos )
minetest.show_formspec( player:get_player_name(), "markers:info", formspec );
end
markers.get_marker_formspec = function(player, pos, error_msg)
local formspec = "";
local meta = minetest.get_meta( pos );
local owner = meta:get_string( 'owner' );
local name = player:get_player_name();
local formspec_info = "size[6,4]"..
"button_exit[2,2.5;1,0.5;abort;OK]"..
"textarea[1,1;4,2;info;Information;";
if( owner ~= nil and owner ~= '' and owner ~= name ) then
return formspec_info.."This marker\ncan only be used by\n"..tostring( owner )..", who\nplaced the markers.]";
end
if( not( markers.positions[ name ]) or #markers.positions[name]<1) then
return formspec_info.."Information about the positions\nof your other markers\ngot lost.\nPlease dig and place\nyour markers again!]";
end
local n = #markers.positions[ name ];
if ( n < 2 ) then
return formspec_info.."Please place 2 or more markers\n - at least one in each corner\n of your area first]";
end
local coords={}
coords[1],coords[2] = markers.get_box_from_markers(name)
-- save data
meta:set_string( 'coords', minetest.serialize( coords ) );
if( not( coords ) or #coords < 2 or not( coords[1] ) or not( coords[2] )) then
return formspec_info.."Error in markers.]";
end
-- the coordinates are set; we may present an input form now
-- has the area already been defined?
local area = markers.get_area_by_pos1_pos2( coords[1], coords[2] );
local size = (math.abs( coords[1].x - coords[2].x )+1)
* (math.abs( coords[1].z - coords[2].z )+1);
-- check if area is too large
if( markers.MAX_SIZE < size ) then
return formspec_info.."Error: You can only protect\nareas of up to "..tostring( markers.MAX_SIZE ).."m^2.\n"..
"Your marked area is "..tostring( size ).." m^2 large.]";
end
local formspec = 'size[10,7]'..
'label[0.5,1;The area you marked extends from]'..
'label[4.7,1;'..minetest.pos_to_string( coords[ 1 ] )..' to '..minetest.pos_to_string( coords[ 2 ] )..'.]'..
'label[4.7,1.5;It spans '..tostring( math.abs( coords[1].x - coords[2].x )+1 )..
' x '..tostring( math.abs( coords[1].z - coords[2].z )+1 )..
' = '..tostring( size )..' m^2.]';
-- display the error message (if there is any)
if( error_msg ~= nil ) then
formspec = formspec..
'label[0.5,0.0;Error: ]'..
'textarea[5.0,0;4,1.5;info;;'..error_msg..']';
end
if( area and area['id'] ) then
formspec = formspec..
'label[0.5,2.0;This is area number ]'..
'label[4.7,2.0;'..tostring( area['id'] )..'.]'..
'label[0.5,2.5;It is owned by ]'..
'label[4.7,2.5;'..tostring( area['owner'] )..'.]'..
'label[0.5,3.0;The area is called ]'..
'label[4.7,3.0;'..tostring( area['name'] )..'.]'..
"button_exit[2,6.0;2,0.5;abort;OK]";
else
formspec = formspec..
-- 'label[0.5,2.0;Buying this area will cost you ]'..
-- 'label[4.7,2.0;'..markers.calculate_area_price_text( coords[1], coords[2], name )..'.]'..
'label[0.5,3.0;Your area ought to go..]'..
'label[0.5,3.5;this many blocks up:]'..
'field[5.0,4.0;1,0.5;add_height;;40]'..
'label[6.0,3.5;(above '..coords[2].y..' )]'..
'label[0.5,4.0;and this many blocks down:]'..
'field[5.0,4.5;1,0.5;add_depth;;10]'..
'label[6.0,4.0;(below '..coords[1].y..' )]'..
'label[0.5,4.5;The area shall be named]'..
'field[5.0,5.0;6,0.5;set_area_name;;please enter a name]'..
"button_exit[2,6.0;2,0.5;abort;Abort]"..
-- code the position in the "Buy area" field
"button_exit[6,6.0;2,0.5;"..minetest.pos_to_string(pos)..";Protect area]";
end
return formspec;
end

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@ -19,12 +19,14 @@ markers.MAX_SIZE = 4096; -- 64m * 64m= 4096 m^2
-- set to something >60000 in order to view all areas; set to a smaller
-- value (i.e. 500) on multiplayer servers with many protected areas
if( #areas.areas > 1000 ) then
markers.AREA_RANGE = 100;
elseif( #areas.areas > 100 ) then
markers.AREA_RANGE = 1000;
else
markers.AREA_RANGE = 100000;
if markers.mod_areas_present then
if( #areas.areas > 1000 ) then
markers.AREA_RANGE = 100;
elseif( #areas.areas > 100 ) then
markers.AREA_RANGE = 1000;
else
markers.AREA_RANGE = 100000;
end
end
-- for most cases, the default values ought to work

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@ -1 +1,2 @@
areas
areas?
raz?

87
functions.lua Normal file
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@ -0,0 +1,87 @@
-- shows where the area (defined by pos1/pos2) is located relative to the given position pos
-- row_offset/col_offset are offsets for the formspec
markers.show_compass_marker = function( col_offset, row_offset, with_text, pos, pos1, pos2 )
local formspec = '';
-- TODO: show up/down information somehow
-- TODO: what if checked with a land claim register?
-- if possible, show how far the area streches into each direction relative to pos
if( pos.x >= pos1.x and pos.x <= pos2.x
and pos.y >= pos1.y and pos.y <= pos2.y
and pos.z >= pos1.z and pos.z <= pos2.z ) then
if( with_text ) then
formspec = formspec..
'label[0.5,5.5;Dimensions of the area in relation to..]'..
-- TODO: check if there is a marker; else write 'position you clicked on'
'label[4.7,5.5;the marker at '..minetest.pos_to_string( pos )..':]'..
'button_exit[8.0,5.5;2,0.5;list_areas_at;Local areas]';
end
formspec = formspec..
'image['..col_offset..','..row_offset..';1,1;markers_stone.png]'..
'label['..(col_offset-0.8)..','..(row_offset+0.05)..';'..tostring( pos.x - pos1.x )..' m W]'..
'label['..(col_offset+1.0)..','..(row_offset+0.05)..';'..tostring( pos2.x - pos.x )..' m E]'..
'label['..(col_offset+0.1)..','..(row_offset+0.80)..';'..tostring( pos.z - pos1.z )..' m S]'..
'label['..(col_offset+0.1)..','..(row_offset-0.80)..';'..tostring( pos2.z - pos.z )..' m N]';
-- else show how far the area is away
else
local starts_north = '';
local starts_south = '';
local starts_east = '';
local starts_west = '';
if( pos.z > pos2.z ) then
starts_north = '';
starts_south = tostring( pos.z - pos2.z )..' m S';
else
starts_north = tostring( pos1.z - pos.z )..' m N';
starts_south = '';
end
if( pos.x > pos2.x ) then
starts_east = '';
starts_west = tostring( pos.x - pos2.x )..' m W';
else
starts_east = tostring( pos1.x - pos.x )..' m E';
starts_west = '';
end
if( with_text ) then
formspec = formspec..
'label[0.5,5.5;Position of the area in relation to..]'..
-- TODO: check if there is a marker; else write 'position you clicked on'
'label[4.7,5.5;the marker at '..minetest.pos_to_string( pos )..':]'..
'button_exit[8.0,5.5;2,0.5;list_areas_at;Local areas]';
end
formspec = formspec..
'image['..col_offset..','..row_offset..';1,1;compass_side_top.png]'..
'label['..(col_offset-0.8)..','..(row_offset+0.05)..';'..starts_west..']'..
'label['..(col_offset+1.0)..','..(row_offset+0.05)..';'..starts_east..']'..
'label['..(col_offset+0.1)..','..(row_offset-0.80)..';'..starts_north..']'..
'label['..(col_offset+0.1)..','..(row_offset+0.80)..';'..starts_south..']';
end
return formspec;
end
-- from areas modified with namespace
-- Modifies positions `pos1` and `pos2` so that each component of `pos1`
-- is less than or equal to its corresponding component of `pos2`,
-- returning the two positions.
function markers:sortPos(pos1, pos2)
if pos1.x > pos2.x then
pos2.x, pos1.x = pos1.x, pos2.x
end
if pos1.y > pos2.y then
pos2.y, pos1.y = pos1.y, pos2.y
end
if pos1.z > pos2.z then
pos2.z, pos1.z = pos1.z, pos2.z
end
return pos1, pos2
end

257
init.lua
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@ -1,50 +1,54 @@
-- markers are useful for measuring distances and for marking areas
-- markers are useful for measuring distances and for marking areas, regions or zones
-- it should work with areas and raz
-- markers are protected from digging by other players for one day
-- (the protection for the *marker* auto-expires then, and it can be digged)
markers = {}
dofile(minetest.get_modpath("markers").."/config.lua");
dofile(minetest.get_modpath("markers").."/areas.lua");
dofile(minetest.get_modpath("markers").."/marker_stone.lua");
dofile(minetest.get_modpath("markers").."/land_title_register.lua");
markers = {
-- returns the first area found
markers.get_area_by_pos1_pos2 = function(pos1, pos2)
for id, area in pairs(areas.areas) do
-- Paths and infos to the mod
worlddir = minetest.get_worldpath(),
modname = minetest.get_current_modname(),
modpath = minetest.get_modpath(minetest.get_current_modname()),
mod_areas_present = nil,
mod_raz_present = nil,
}
if( ((area.pos1.x == pos1.x and area.pos1.z == pos1.z )
or (area.pos1.x == pos1.x and area.pos1.z == pos2.z )
or (area.pos1.x == pos2.x and area.pos1.z == pos1.z )
or (area.pos1.x == pos2.x and area.pos1.z == pos2.z ))
and((area.pos2.x == pos1.x and area.pos2.z == pos1.z )
or (area.pos2.x == pos1.x and area.pos2.z == pos2.z )
or (area.pos2.x == pos2.x and area.pos2.z == pos1.z )
or (area.pos2.x == pos2.x and area.pos2.z == pos2.z ))) then
-- load the .luas
dofile(markers.modpath.."/config.lua")
dofile(markers.modpath.."/functions.lua")
-- at least pos1 needs to have a hight value that fits in
if( (area.pos1.y <= pos1.y and area.pos2.y >= pos1.y)
or (area.pos1.y >= pos1.y and area.pos2.y <= pos1.y)) then
-- check if areas or raz is installed
markers.mod_areas_present = minetest.get_modpath("areas")
markers.mod_raz_present = minetest.get_modpath("raz")
local found = area;
found[ 'id' ] = id;
return found;
end
end
end
return nil;
if markers.mod_areas_present and markers.mod_raz_present then
minetest.log("error", "[" .. markers.modname .. "] areas and raz is installed - what shall be used!!!!!!")
elseif markers.mod_areas_present and not markers.mod_raz_present then
dofile(markers.modpath.."/areas.lua")
minetest.log("action", "[" .. markers.modname .. "] areas is installed - load areas.lua")
elseif markers.mod_raz_present and not markers.mod_areas_present then
dofile(markers.modpath.."/raz.lua")
minetest.log("action", "[" .. markers.modname .. "] raz is installed - load raz.lua")
else
minetest.log("error", "[" .. markers.modname .. "] I fond no installed version of areas or raz - what shall be used!!!!!!")
end
dofile(markers.modpath.."/marker_stone.lua")
dofile(markers.modpath.."/land_title_register.lua")
-- this function is supposed to return a text string describing the price of the land between po1 and pos2
-- this function is supposed to return a text string describing the price of the land between pos1 and pos2
-- You can return somethiing like "for free" or "the promise to build anything good" as well as any
-- real prices in credits or materials - it's really just a text here.
-- Make sure you do not charge the player more than what you ask here.
@ -238,204 +242,11 @@ end --get_box_from_markers
markers.get_marker_formspec = function(player, pos, error_msg)
local formspec = "";
local meta = minetest.get_meta( pos );
local owner = meta:get_string( 'owner' );
local name = player:get_player_name();
local formspec_info = "size[6,4]"..
"button_exit[2,2.5;1,0.5;abort;OK]"..
"textarea[1,1;4,2;info;Information;";
if( owner ~= nil and owner ~= '' and owner ~= name ) then
return formspec_info.."This marker\ncan only be used by\n"..tostring( owner )..", who\nplaced the markers.]";
end
if( not( markers.positions[ name ]) or #markers.positions[name]<1) then
return formspec_info.."Information about the positions\nof your other markers\ngot lost.\nPlease dig and place\nyour markers again!]";
end
local n = #markers.positions[ name ];
if ( n < 2 ) then
return formspec_info.."Please place 2 or more markers\n - at least one in each corner\n of your area first]";
end
local coords={}
coords[1],coords[2] = markers.get_box_from_markers(name)
-- save data
meta:set_string( 'coords', minetest.serialize( coords ) );
if( not( coords ) or #coords < 2 or not( coords[1] ) or not( coords[2] )) then
return formspec_info.."Error in markers.]";
end
-- the coordinates are set; we may present an input form now
-- has the area already been defined?
local area = markers.get_area_by_pos1_pos2( coords[1], coords[2] );
local size = (math.abs( coords[1].x - coords[2].x )+1)
* (math.abs( coords[1].z - coords[2].z )+1);
-- check if area is too large
if( markers.MAX_SIZE < size ) then
return formspec_info.."Error: You can only protect\nareas of up to "..tostring( markers.MAX_SIZE ).."m^2.\n"..
"Your marked area is "..tostring( size ).." m^2 large.]";
end
local formspec = 'size[10,7]'..
'label[0.5,1;The area you marked extends from]'..
'label[4.7,1;'..minetest.pos_to_string( coords[ 1 ] )..' to '..minetest.pos_to_string( coords[ 2 ] )..'.]'..
'label[4.7,1.5;It spans '..tostring( math.abs( coords[1].x - coords[2].x )+1 )..
' x '..tostring( math.abs( coords[1].z - coords[2].z )+1 )..
' = '..tostring( size )..' m^2.]';
-- display the error message (if there is any)
if( error_msg ~= nil ) then
formspec = formspec..
'label[0.5,0.0;Error: ]'..
'textarea[5.0,0;4,1.5;info;;'..error_msg..']';
end
if( area and area['id'] ) then
formspec = formspec..
'label[0.5,2.0;This is area number ]'..
'label[4.7,2.0;'..tostring( area['id'] )..'.]'..
'label[0.5,2.5;It is owned by ]'..
'label[4.7,2.5;'..tostring( area['owner'] )..'.]'..
'label[0.5,3.0;The area is called ]'..
'label[4.7,3.0;'..tostring( area['name'] )..'.]'..
"button_exit[2,6.0;2,0.5;abort;OK]";
else
formspec = formspec..
-- 'label[0.5,2.0;Buying this area will cost you ]'..
-- 'label[4.7,2.0;'..markers.calculate_area_price_text( coords[1], coords[2], name )..'.]'..
'label[0.5,3.0;Your area ought to go..]'..
'label[0.5,3.5;this many blocks up:]'..
'field[5.0,4.0;1,0.5;add_height;;40]'..
'label[6.0,3.5;(above '..coords[2].y..' )]'..
'label[0.5,4.0;and this many blocks down:]'..
'field[5.0,4.5;1,0.5;add_depth;;10]'..
'label[6.0,4.0;(below '..coords[1].y..' )]'..
'label[0.5,4.5;The area shall be named]'..
'field[5.0,5.0;6,0.5;set_area_name;;please enter a name]'..
"button_exit[2,6.0;2,0.5;abort;Abort]"..
-- code the position in the "Buy area" field
"button_exit[6,6.0;2,0.5;"..minetest.pos_to_string(pos)..";Protect area]";
end
return formspec;
end
-- protect/buy an area
markers.marker_on_receive_fields = function(pos, formname, fields, sender)
if( not( pos )) then
minetest.chat_send_player( name, 'Sorry, could not find the marker you where using to access this formspec.' );
return;
end
local meta = minetest.get_meta( pos );
local name = sender:get_player_name();
local coords_string = meta:get_string( 'coords' );
if( not( coords_string ) or coords_string == '' ) then
minetest.chat_send_player( name, 'Could not find marked area. Please dig and place your markers again!');
return;
end
local coords = minetest.deserialize( coords_string );
-- do not protect areas twice
local area = markers.get_area_by_pos1_pos2( coords[1], coords[2] );
if( area ) then
minetest.chat_send_player( name, 'This area is already protected.');
return;
end
-- check input
local add_height = tonumber( fields['add_height'] );
local add_depth = tonumber( fields['add_depth'] );
local error_msg = '';
if( not( add_height ) or add_height < 0 or add_height > markers.MAX_HEIGHT ) then
minetest.chat_send_player( name, 'Please enter a number between 0 and '..tostring( markers.MAX_HEIGHT )..
' in the field where the height of your area is requested. Your area will stretch that many blocks '..
'up into the sky from the position of this marker onward.');
error_msg = 'The height value\nhas to be larger than 0\nand smaller than '..tostring( markers.MAX_HEIGHT );
elseif( not( add_depth ) or add_depth < 0 or add_depth > markers.MAX_HEIGHT ) then
minetest.chat_send_player( name, 'Please enter a number between 0 and '..tostring( markers.MAX_HEIGHT )..
' in the field where the depth of your area is requested. Your area will stretch that many blocks '..
'into the ground from the position of this marker onward.');
error_msg = 'The depth value\nhas to be larger than 0\nand smaller than '..tostring( markers.MAX_HEIGHT );
elseif( add_height + add_depth > markers.MAX_HEIGHT ) then
minetest.chat_send_player( name, 'Sorry, your area exceeds the height limit. Height and depth added have to '..
'be smaller than '..tostring( markers.MAX_HEIGHT )..'.');
error_msg = 'height + depth has to\nbe smaller than '..tostring( markers.MAX_HEIGHT )..'.'
elseif( not( fields[ 'set_area_name' ] ) or fields['set_area_name'] == 'please enter a name' ) then
minetest.chat_send_player( name, 'Please provide a name for your area, i.e. \"'..
tostring( name )..'s first house\" The name ought to describe what you intend to build here.');
error_msg = 'Please provide a\nname for your area!';
else
error_msg = nil;
end
if( error_msg ~= nil ) then
minetest.show_formspec( name, "markers:mark", markers.get_marker_formspec(sender, pos, error_msg));
return;
end
-- those coords lack the height component
local pos1 = coords[1];
local pos2 = coords[2];
-- apply height values from the formspeck
pos1.y = pos1.y - add_depth;
pos2.y = pos2.y + add_height;
pos1, pos2 = areas:sortPos( pos1, pos2 );
--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

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