[Lua Function] determination of the nearest town (to which the town closest to us)

[Seminari]

function getNajblizej(pos)
local miasta = {
["carlin"] = {x=200,y=380,z=7},
["venore"] = {x=1200,y=2380,z=7},
["thais"] = {x=200,y=17000,z=7},
["edron"] = {x=250, y=600, z=7},
}
local city = ''
local distance = 0
for k,v in pairs(miasta) do
local dist = ((pos.x-v.x)^2+(pos.y-v.y)^2)^(1/2)
 if (dist < 0) then
  dist = 0-dist
 end
 if city == '' then
  city = k
  distance = dist
 elseif (distance > dist)then
  city = k
  distance = dist
 end 
end
return {city, distance} 
end

example:

local poz = {x=340, y=800, z=7}
lol = getNajblizej(poz)
print(lol[1], lol[2])

in talkaction:

function onSay(cid, words, param, channel)
        if(param == '') then
            return doPlayerSendTextMessage(cid, MESSAGE_STATUS_CONSOLE_BLUE, "Command requires param.")
        end
 
        local t = string.explode(param, ",")
		if((not t[1]) or (not t[2]) or (not t[3])) then
            return doPlayerSendTextMessage(cid, MESSAGE_STATUS_CONSOLE_BLUE, "Command requires param.")
		end
		poz = getPlayerPosition(cid)
		lol = getNajblizej(poz)
		doPlayerSendTextMessage(cid, MESSAGE_STATUS_CONSOLE_BLUE, "The nearest town is: ".. lol[1] ..", distance is: ".. lol[2] .."")
		
	return true
end

thx for help Azi

 

[Azi]

nice and usefull : )
np. x d

 

[Seminari]

# changed distance formula from:

local dist = (pos.x-v.x)+(pos.y-v.y)

to:

local dist = ((pos.x-v.x)^2+(pos.y-v.y)^2)^(1/2)

 

[kito2]

Very very very nice.

 

[Azi]

Very very very nice.

i know, my functions always are great. seminari noob only add new formula xd
but he is parcel with label in the ass ^^

 

[Seminari]

new script, which using this function:

http://otland.net/f81/advanced-exiva-how-many-squares-our-target-town-he-nearest-153798/

 

[Badoo]

sorry where do i put this lua file in talkactions? a bit cunfused

function getNajblizej(pos)
local miasta = {
["carlin"] = {x=200,y=380,z=7},
["venore"] = {x=1200,y=2380,z=7},
["thais"] = {x=200,y=17000,z=7},
["edron"] = {x=250, y=600, z=7},
}
local city = ''
local distance = 0
for k,v in pairs(miasta) do
local dist = ((pos.x-v.x)^2+(pos.y-v.y)^2)^(1/2)
if (dist < 0) then
dist = 0-dist
end
if city == '' then
city = k
distance = dist
elseif (distance > dist)then
city = k
distance = dist
end
end
return {city, distance}
end

 

[Seminari]

sorry where do i put this lua file in talkactions? a bit cunfused

function getNajblizej u must put in LIB

for example

data --> lib --> constant.lua and paste to him

 

[manerinhu]

if (dist < 0) then
dist = 0-dist
end

that's not necessary
you are using a distant between 2-point formula, which will always return a positive value (as distances can only be positive)

 

[Seminari]

if (dist < 0) then
dist = 0-dist
end

that's not necessary
you are using a distant between 2-point formula, which will always return a positive value (as distances can only be positive)

smartas, ok, remove this line, and test ;s

do you read my script or only 1 line hm? look again.

 

[Santi]

smartas, ok, remove this line, and test ;s

do you read my script or only 1 line hm? look again.

He's right, dist will always be positive (- * - = + / + * + = +)