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when placing elevator show where nearest one is

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Sokomine 2017-12-17 17:56:36 +01:00
parent 4aa4cf8966
commit 11de2c34b7
2 changed files with 86 additions and 0 deletions
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84
elevator.lua
View File

@ -2,6 +2,89 @@
-- The network name is determined automaticly from the position (x/z coordinates).
-- >utor: Sokomine
travelnet.show_nearest_elevator = function( pos, owner_name, param2 )
if( not( pos ) or not(pos.x) or not(pos.z) or not( owner_name )) then
return;
end
if( not( travelnet.targets[ owner_name ] )) then
minetest.chat_send_player( owner_name, "Congratulations! This is your first elevator."..
"You can build an elevator network by placing further elevators somewhere above "..
"or below this one. Just make sure that the x and z coordinate are the same.");
return;
end
local network_name = tostring( pos.x )..','..tostring( pos.z );
-- will this be an elevator that will be added to an existing network?
if( travelnet.targets[ owner_name ][ network_name ]
-- does the network have any members at all?
and next( travelnet.targets[ owner_name ][ network_name ], nil )) then
minetest.chat_send_player( owner_name, "This elevator will automaticly connect to the "..
"other elevators you have placed at diffrent heights. Just enter a station name "..
"and click on \"store\" to set it up. Or just punch it to set the height as station "..
"name.");
return;
end
local nearest_name = "";
local nearest_dist = 100000000;
local nearest_dist_x = 0;
local nearest_dist_z = 0;
for network_name, data in pairs( travelnet.targets[ owner_name ] ) do
local station_name = next( data, nil );
if( station_name and data[ station_name ][ "nr" ] and data[ station_name ].pos) then
local station_pos = data[ station_name ].pos;
local dist = math.ceil(math.sqrt(
( station_pos.x - pos.x ) * ( station_pos.x - pos.x )
+ ( station_pos.z - pos.z ) * ( station_pos.z - pos.z )));
-- find the nearest one; store network_name and (minimal) distance
if( dist < nearest_dist ) then
nearest_dist = dist;
nearest_dist_x = station_pos.x - pos.x;
nearest_dist_z = station_pos.z - pos.z;
nearest_name = network_name;
end
end
end
if( nearest_name ~= "" ) then
local text = "Your nearest elevator network is located ";
-- in front of/behind
if( (param2==0 and nearest_dist_z>=0)or (param2==2 and nearest_dist_z<=0)) then
text = text..tostring( math.abs(nearest_dist_z )).." m behind this elevator and ";
elseif((param2==1 and nearest_dist_x>=0)or (param2==3 and nearest_dist_x<=0)) then
text = text..tostring( math.abs(nearest_dist_x )).." m behind this elevator and ";
elseif((param2==0 and nearest_dist_z< 0)or (param2==2 and nearest_dist_z> 0)) then
text = text..tostring( math.abs(nearest_dist_z )).." m in front of this elevator and ";
elseif((param2==1 and nearest_dist_x< 0)or (param2==3 and nearest_dist_x> 0)) then
text = text..tostring( math.abs(nearest_dist_x )).." m in front of this elevator and ";
else text = text.." ERROR ";
end
-- right/left
if( (param2==0 and nearest_dist_x< 0)or (param2==2 and nearest_dist_x> 0)) then
text = text..tostring( math.abs(nearest_dist_x )).." m to the left";
elseif((param2==1 and nearest_dist_z>=0)or (param2==3 and nearest_dist_z<=0)) then
text = text..tostring( math.abs(nearest_dist_z )).." m to the left";
elseif((param2==0 and nearest_dist_x>=0)or (param2==2 and nearest_dist_x<=0)) then
text = text..tostring( math.abs(nearest_dist_x )).." m to the right";
elseif((param2==1 and nearest_dist_z< 0)or (param2==3 and nearest_dist_z> 0)) then
text = text..tostring( math.abs(nearest_dist_z )).." m to the right";
else text = text.." ERROR ";
end
minetest.chat_send_player( owner_name, text..
", located at x="..tostring( pos.x+nearest_dist_x)..
", z="..tostring( pos.z+nearest_dist_z)..
" This elevator here will start a new shaft/network." );
else
minetest.chat_send_player( owner_name, "This is your first elevator. It differs from "..
"travelnet networks by only allowing movement in vertical direction (up or down). "..
"All further elevators which you will place at the same x,z coordinates at differnt "..
"heights will be able to connect to this elevator.");
end
end
minetest.register_node("travelnet:elevator", {
description = "Elevator",
drawtype = "mesh",
@ -59,6 +142,7 @@ minetest.register_node("travelnet:elevator", {
local p = {x=pos.x, y=pos.y+1, z=pos.z}
local p2 = minetest.dir_to_facedir(placer:get_look_dir())
minetest.add_node(p, {name="travelnet:elevator_top", paramtype2="facedir", param2=p2})
travelnet.show_nearest_elevator( pos, placer:get_player_name(), p2 );
end,
on_receive_fields = travelnet.on_receive_fields,

2
init.lua
View File

@ -26,6 +26,8 @@
TNT and DungeonMasters ought to leave travelnets and elevators untouched now.
Added function to register elevator doors.
Added elevator doors made out of tin ingots.
Provide information about the nearest elevator network when placing a new elevator. This
ought to make it easier to find the right spot.
16.07.17 - Merged several PR from others (Typo, screenshot, documentation, mesecon support, bugfix).
Added buttons to move stations up or down in the list, independent on when they where added.
Fixed undeclared globals.