unpack = unpack or table.unpack
local a = {}
local function add(...)
local arg = {...}
if arg[2]=='brusheditor_window' then
arg[1][arg[3]]={}
arg[1][arg[3]]['params']={}
arg[1][arg[3]]['params']['show']=false
arg[1][arg[3]]['params']['Type']=arg[2]
arg[1][arg[3]]['params']['x1']=arg[4]
arg[1][arg[3]]['params']['y1']=arg[5]
arg[1][arg[3]]['params']['w']=arg[6]
arg[1][arg[3]]['params']['h']=arg[7]
arg[1][arg[3]]['params']['name']=arg[3]
arg[1][arg[3]]['params']['movable']=arg[8]
arg[1][arg[3]]['params']['active']=true
arg[1][arg[3]]['items']={}
else
_G[arg[2]](2,arg)
end
end

function brusheditor_button(a,x,y,mx,my,e)
if a==0 then
graphics.fillRect(x.x1+y.x1,x.y1+y.y1,x.w,x.h,100,100,100)
graphics.fillRect(x.x1+y.x1,x.y1+y.y1,x.w-1,x.h-1,200,200,200)
if x.pressed==1 then
graphics.fillRect(x.x1+y.x1+1,x.y1+y.y1+1,x.w-2,x.h-2,230,230,230)
else
graphics.fillRect(x.x1+y.x1+1,x.y1+y.y1+1,x.w-2,x.h-2,200,200,200)
end
graphics.drawText(x.x1 +(x.w-graphics.textSize(x.name))/2+y.x1, x.y1+y.y1+3 ,x.name,0,0,0)
elseif a==1 then
if x.pressed==1 and e==2 then
x.pressed=0
end
if y.x1+x.x1<mx and y.x1+x.x1+x.w>mx and y.y1+x.y1<my and y.y1+x.y1+x.h>my then
if e==2 then
x.action(x.p1,x.p2)
x.pressed=0
elseif e==1 then
x.pressed=1
end
end
elseif a==2 then
x[1][x[3]]['items'][x[4]]={}
x[1][x[3]]['items'][x[4]]['params']={}
x[1][x[3]]['items'][x[4]]['params']['Type']=x[2]
x[1][x[3]]['items'][x[4]]['params']['show']=false
x[1][x[3]]['items'][x[4]]['params']['x1']=x[5]
x[1][x[3]]['items'][x[4]]['params']['y1']=x[6]
x[1][x[3]]['items'][x[4]]['params']['w']=x[7]
x[1][x[3]]['items'][x[4]]['params']['h']=x[8]
x[1][x[3]]['items'][x[4]]['params']['action']=x[9]
x[1][x[3]]['items'][x[4]]['params']['p1']=x[10]
x[1][x[3]]['items'][x[4]]['params']['p2']=x[11]
x[1][x[3]]['items'][x[4]]['params']['name']=x[4]
elseif a==3 then
end
end

function brusheditor_window(a,x,mx,my,e)
if a==0 then
graphics.fillRect(x.x1,x.y1,x.w-1,x.h-1,200,200,200)
graphics.fillRect(x.x1+1,x.y1+1,x.w-1,x.h-1,100,100,100)
graphics.fillRect(x.x1+1,x.y1,x.w-2,x.h-2)
if x.movable==true then
graphics.fillRect(x.x1,x.y1,x.w,10,150,150,255)
graphics.drawText(x.x1 +(x.w-graphics.textSize(x.name))/2 ,x.y1+2,x.name,0,0,0)
end
elseif a==1 then
if x.pressed==1 and e==2 then
x.pressed=0
end
if x.x1<mx and x.x1+x.w>mx and x.y1<my and x.y1+10>my and x.movable==true then
if e==1 then
x.pressed=1
x.px=mx
x.py=my
end
end
if x.pressed==1 and e==3 then
local nx=x.x1-x.px+mx
local ny=x.y1-x.py+my
if nx>-1 and nx+x.w<642 then
x.x1=nx
x.px=mx
end
if ny>0 and ny+x.h<424 then
x.y1=ny
x.py=my
end
end
elseif a==2 then
elseif a==3 then
end
end

function brusheditor_text(a,x,y)
if a==0 then
graphics.drawText(x.x1+y.x1,x.y1+y.y1,x.name,0,0,0)
elseif a==1 then
elseif a==2 then
x[1][x[3]]['items'][x[4]]={}
x[1][x[3]]['items'][x[4]]['params']={}
x[1][x[3]]['items'][x[4]]['params']['Type']=x[2]
x[1][x[3]]['items'][x[4]]['params']['show']=false
x[1][x[3]]['items'][x[4]]['params']['x1']=x[5]
x[1][x[3]]['items'][x[4]]['params']['y1']=x[6]x[1][x[3]]['items'][x[4]]['params']['name']=x[4]
elseif a==3 then
end
end

function brusheditor_checkbox( a,x,y,mx,my,e )
if a==0 then
graphics.fillRect(x.x1+y.x1,x.y1+y.y1,10,10)
graphics.drawRect(x.x1+y.x1,x.y1+y.y1,10,10,0,0,0)
graphics.drawText(x.x1+y.x1+15,x.y1+y.y1+1,x.name,0,0,0)
if x.checked==true then
graphics.fillRect(x.x1+y.x1+2,x.y1+y.y1+2,6,6,80,200,80)
end
elseif a==1 then
if x.x1+y.x1<mx and x.x1+y.x1+10>mx and x.y1+y.y1<my and x.y1+y.y1+10>my then
if e==2 and x.checked==true then
x.checked=false
elseif e==2 and x.checked~=true then
x.checked=true
end
end
elseif a==2 then
x[1][x[3]]['items'][x[4]]={}
x[1][x[3]]['items'][x[4]]['params']={}
x[1][x[3]]['items'][x[4]]['params']['Type']=x[2]
x[1][x[3]]['items'][x[4]]['params']['show']=false
x[1][x[3]]['items'][x[4]]['params']['x1']=x[5]
x[1][x[3]]['items'][x[4]]['params']['y1']=x[6]x[1][x[3]]['items'][x[4]]['params']['action']=x[7]
x[1][x[3]]['items'][x[4]]['params']['checked']=x[8]
x[1][x[3]]['items'][x[4]]['params']['name']=x[4]
elseif a==3 then
end
end

function brusheditor_textbox( a,x,y,mx,my,e,k )
if a==0 then
if x.pressed == 1 then
graphics.drawRect(x.x1+y.x1,x.y1+y.y1,x.w,x.h,255,0,0)
else
graphics.drawRect(x.x1+y.x1,x.y1+y.y1,x.w,x.h,0,0,0)
end
graphics.drawText(x.x1+y.x1+2,x.y1+y.y1+3,x.text,0,0,0)
elseif a==1 then
if x.pressed==1 and e==1 then
x.pressed=0
end
if y.x1+x.x1<mx and y.x1+x.x1+x.w>mx and y.y1+x.y1<my and y.y1+x.y1+x.h>my then
if e==2 then
x.active=true
elseif e==1 then
x.pressed=1
end
end
elseif a==2 then
x[1][x[3]]['items'][x[4]]={}
x[1][x[3]]['items'][x[4]]['params']={}
x[1][x[3]]['items'][x[4]]['params']['Type']=x[2]
x[1][x[3]]['items'][x[4]]['params']['show']=false
x[1][x[3]]['items'][x[4]]['params']['x1']=x[5]
x[1][x[3]]['items'][x[4]]['params']['y1']=x[6]
x[1][x[3]]['items'][x[4]]['params']['w']=x[7]
x[1][x[3]]['items'][x[4]]['params']['h']=x[8]
x[1][x[3]]['items'][x[4]]['params']['max']=x[9]
x[1][x[3]]['items'][x[4]]['params']['name']=x[4]
x[1][x[3]]['items'][x[4]]['params']['text']=''
elseif a==3 then
if string.len(x.text)<x.max and my>47 and my <123 and k==1 and my~=8 then
x.text=x.text..mx
elseif my==8 and k==1 then
x.text=string.sub(x.text,0,string.len(x.text)-1)
elseif my==13 and k==1 then
x.active=false
x.pressed=0
end
end 
end

function brusheditor_brushtable( a,x,y,mx,my,e,b )
if a==0 then
local l=math.sqrt( #x.table )
local j=1
local i=1
xw=l*x.cellsize+1
graphics.fillRect(x.x1+y.x1,x.y1+y.y1,xw,xw,0,0,0)
for k=1,#x.table do
i=i+1
if x.table[k]==0 then
graphics.fillRect(x.x1+y.x1+i*x.cellsize-x.cellsize*2+1,x.y1+y.y1+j*x.cellsize-x.cellsize+1,x.cellsize-1,x.cellsize-1,255,255,255)
else
graphics.fillRect(x.x1+y.x1+i*x.cellsize-x.cellsize*2+1,x.y1+y.y1+j*x.cellsize-x.cellsize+1,x.cellsize-1,x.cellsize-1,0,0,0)
end
if k%l==0 then
j=j+1
i=1
end
end
elseif a==1 then
if x.x1+y.x1<mx and x.x1+y.x1+xw>mx and x.y1+y.y1<my and x.y1+y.y1+xw>my then
local click = math.floor((mx-x.x1)/x.cellsize)+math.sqrt( #x.table )*math.floor((my-x.y1)/x.cellsize)+1
if x.tool=='brush0' and e==3 and x.press==1 then
  if b==1 and click <= #x.table then
    x.table[click]=255
  elseif b==4 and click <= #x.table then
    x.table[click]=0
  end
elseif x.tool=='brush0' and e==1 then
x.history={unpack(x.table)}
x.historyL=1
x.press=1
elseif x.tool=='brush0' and e==2 then
x.press=0
elseif (x.tool=="brush1" or x.tool=="brush2") and e==1 then
local l=math.sqrt( #x.table )
 if x.f~=true then
  x.history={unpack(x.table)}
  x.historyL=1
  if b==1 and click <= #x.table then
    x.f=true
    x.f1= math.floor((mx-x.x1)/x.cellsize)
    x.f2= math.floor((my-x.y1)/x.cellsize)
  elseif b==4 and click <= #x.table then
    x.f=true
    x.f1= math.floor((mx-x.x1)/x.cellsize)
    x.f2= math.floor((my-x.y1)/x.cellsize)
  end
 elseif x.f==true then
  x.f=false
  local cx=math.floor((mx-x.x1)/x.cellsize)
  local cy=math.floor((my-x.y1)/x.cellsize)
  if x.f1 < cx then
  x.f1,cx=cx,x.f1
  end
  if x.f2 < cy then
  x.f2,cy=cy,x.f2
  end
  if b==1 and click <= #x.table then
    for i=0, math.sqrt( #x.table )-1 do
    for j=0, math.sqrt( #x.table )-1 do
if x.tool=="brush1" then
     if cx<j+1 and x.f1+1>=j+1  and cy-1<i and x.f2>=i then
       x.table[i*l+j+1]=255
     end
else
if (cx<=j and x.f1>=j and (i==cy or i==x.f2))  or ( cy-1<i and x.f2>=i and ( cx==j or j==x.f1) ) then
       x.table[i*l+j+1]=255
     end
     
end
    end
    end
  elseif b==4 and click <= #x.table then

   for i=0, math.sqrt( #x.table )-1 do
    for j=0, math.sqrt( #x.table )-1 do
if x.tool=="brush1" then
     if cx<j+1 and x.f1+1>=j+1  and cy-1<i and x.f2>=i then
       x.table[i*l+j+1]=0
     end
else
if (cx<=j and x.f1>=j and (i==cy or i==x.f2))  or ( cy-1<i and x.f2>=i and ( cx==j or j==x.f1) ) then
       x.table[i*l+j+1]=0
     end
     
end
    end
    end
  end
 end
end
end
elseif a==2 then
x[1][x[3]]['items'][x[4]]={}
x[1][x[3]]['items'][x[4]]['params']={}
x[1][x[3]]['items'][x[4]]['params']['Type']=x[2]
x[1][x[3]]['items'][x[4]]['params']['show']=false
x[1][x[3]]['items'][x[4]]['params']['x1']=x[5]
x[1][x[3]]['items'][x[4]]['params']['y1']=x[6]
x[1][x[3]]['items'][x[4]]['params']['w']=x[7]
x[1][x[3]]['items'][x[4]]['params']['h']=x[8]
x[1][x[3]]['items'][x[4]]['params']['action']=x[9]
x[1][x[3]]['items'][x[4]]['params']['name']=x[4]
x[1][x[3]]['items'][x[4]]['params']['filename']=""
x[1][x[3]]['items'][x[4]]['params']['table']={}
for t=1,121 do
x[1][x[3]]['items'][x[4]]['params']['table'][t]=0
end
x[1][x[3]]['items'][x[4]]['params']['history']={}
x[1][x[3]]['items'][x[4]]['params']['historyR']={}
x[1][x[3]]['items'][x[4]]['params']['historyL']=0
x[1][x[3]]['items'][x[4]]['params']['tool']="brush0"
x[1][x[3]]['items'][x[4]]['params']['cellsize']=11
elseif a==3 then
end
end

local function hide(...)
local arg = {...}
if #arg==2 then
arg[1][arg[2]].params.show=false
elseif #arg==3 then
arg[1][arg[2]].items[arg[3]].params.show=false
end
end

local function show(...)
local arg = {...}
if #arg==2 then
arg[1][arg[2]].params.show=true
elseif #arg==3 then
arg[1][arg[2]].items[arg[3]].params.show=true
end
end

local function ShowAll(a,x)
for i in pairs(a) do
a[i].params.active=false
end
show(a,x)
a[x].params.active=true
for i in pairs(a[x].items) do
show(a,x,i)
end
end

local function HideAll(a,x)
for i in pairs(a) do
if i~='name1' then
hide(a,i)
end
end
a[x].params.active=false
a['name1'].params.active=true
end


local function screen()
for i in pairs(a) do
	if a[i].params.show==true and a[i].params.active==false then

		_G[a[i].params.Type](0,a[i].params)
		for p in pairs(a[i].items) do
			_G[a[i].items[p].params.Type] (0,a[i].items[p].params,a[i].params )
		end
	end
end
for i in pairs(a) do
	if a[i].params.show==true and a[i].params.active==true then

		_G[a[i].params.Type](0,a[i].params)
		for p in pairs(a[i].items) do
			_G[a[i].items[p].params.Type] (0,a[i].items[p].params,a[i].params )
		end
	end
end
end

local function keypress( mousex, mousey, button, event )
for i in pairs(a) do
if a[i].params.show==true and a[i].params.active==true then
_G[a[i].params.Type](1,a[i].params,mousex,mousey,event)
for j in pairs(a[i].items) do
if a[i].items[j].params.show==true then
_G[a[i].items[j].params.Type]( 1,a[i].items[j].params,a[i].params,mousex,mousey,event,button )
end
end
end
end
return false
end

local function keyp( key, nkey, modifier, event )
for i in pairs(a) do
if a[i].params.show==true and a[i].params.active==true then
for j in pairs(a[i].items) do
if a[i].items[j].params.show==true and a[i].items[j].params.pressed==1 then
_G[a[i].items[j].params.Type]( 3,a[i].items[j].params,a[i].params,key,nkey,modifer,event )
end
end
end
end
return false
end

local function load(b,k)
HideAll(a,"Open")
local name = "Brushes/"..b.text..".ptb"
local f=io.open(name,"r")
if f==nil then
tpt.throw_error("Cannot open file")
else
local t = {}
ii = 1
repeat
current_byte = f:read(1)
if current_byte~= nil then
t[ii]= string.byte(current_byte)
ii=ii+1
end
until current_byte == nil
k.params['table']=t
end
end

local function createnew(x,y)
HideAll(a,'New Brush')
a['name1'].items.bt.params['table']={}
for t=1,tonumber(x.text)*tonumber(x.text) do
a['name1'].items.bt.params['table'][t]=0
end
a['name1'].items.bt.params['cellsize']=y.text
end

local save

local function SaveAs(k,d)
d.params.filename=k.text..".ptb"
save(d)
HideAll(a,'Save As')
end

save = function(t)
if t.params.filename~="" and t.params.filename~=nil then
fs.makeDirectory("Brushes")
local out = io.open("Brushes/"..t.params.filename, "wb")
local str = string.char(unpack(t.params.table))
out:write(str)
out:close()
else
ShowAll(a,'Save As')
end
end

local function changeb(x,y)
x.tool=y
x.f=false
end

local function Undo(x)
if x.params.historyL==1 then
x.params.historyR={unpack(x.params.table)}
x.params.table = {unpack(x.params.history)}
x.params.historyL=2
end
end

local function Redo(x)
if x.params.historyL==2 then
x.params.history={unpack(x.params.table)}
x.params.table = {unpack(x.params.historyR)}
x.params.historyL=1
end
end

function BrushEditor()
tpt.register_step(screen)
tpt.register_mouseclick(keypress)
tpt.register_keypress(keyp)
ShowAll(a,'name1')
end

local function ExitEditor()
tpt.unregister_step(screen)
tpt.unregister_mouseclick(keypress)
tpt.unregister_keypress(keyp)
for i in pairs(a) do
hide(a,i)
end
end

add(a,'brusheditor_window','name1',-1,0,643,426,false)
add(a,'brusheditor_window','File_dialog',0,12,50,72,false)
add(a,'brusheditor_window','Edit_dialog',29,12,50,36,false)
add(a,'brusheditor_window','About_dialog',58,12,50,24,false)
add(a,'brusheditor_window','New Brush',200,200,100,70,true)
add(a,'brusheditor_window','Tools',50,50,30,100,true)
add(a,'brusheditor_window','Open',200,200,100,70,true)
add(a,'brusheditor_window','Save As',200,200,100,70,true)
add(a,'brusheditor_window','Info',200,200,150,150,true)
------------------------------------------
--		Main			--
------------------------------------------
add(a,'brusheditor_button','name1','File',0,0,30,12,ShowAll,a,'File_dialog')
add(a,'brusheditor_brushtable','name1','bt',100,0)
add(a,'brusheditor_button','name1','Edit',30,0,30,12,ShowAll,a,'Edit_dialog')
add(a,'brusheditor_button','name1','About',60,0,30,12,ShowAll,a,'About_dialog')
add(a,'brusheditor_text','name1','Tools',10,40)
add(a,'brusheditor_button','name1','Filled\nSquare',10,55,35,30,changeb,a['name1'].items.bt.params,'brush1')
add(a,'brusheditor_button','name1','Square',10,90,35,15, changeb,a['name1'].items.bt.params,'brush2')
add(a,'brusheditor_button','name1','Point',10,110,35,15, changeb,a['name1'].items.bt.params,'brush0')
------------------------------------------
--		New dialog		--
------------------------------------------
add(a,'brusheditor_textbox','New Brush','File1',60,16,30,12,4,3)
add(a,'brusheditor_textbox','New Brush','size',60,31,30,12,4,3)
add(a,'brusheditor_button','New Brush','Ok',10,50,35,13,createnew,a['New Brush'].items.File1.params,a['New Brush'].items.size.params)
add(a,'brusheditor_button','New Brush','Cancel',55,50,35,13,HideAll,a,'New Brush')
add(a,'brusheditor_text','New Brush','Width',10,19)
add(a,'brusheditor_text','New Brush','Cell size',10,34)
------------------------------------------
--		File dialog         	--
------------------------------------------
add(a,'brusheditor_button','File_dialog','New',0,0,50,12,ShowAll,a,'New Brush')
add(a,'brusheditor_button','File_dialog','Open',0,12,50,12,ShowAll,a,'Open')
add(a,'brusheditor_button','File_dialog','Save',0,24,50,12,save,a['name1'].items.bt)
add(a,'brusheditor_button','File_dialog','Save As',0,36,50,12,ShowAll,a,'Save As')
add(a,'brusheditor_button','File_dialog','Exit',0,48,50,12,ExitEditor)
add(a,'brusheditor_button','File_dialog','Close',0,60,50,12,HideAll,a,'File_dialog')
------------------------------------------
--		Edit dialog         	--
------------------------------------------
add(a,'brusheditor_button','Edit_dialog','Undo',0,0,50,12,Undo,a['name1'].items.bt)
add(a,'brusheditor_button','Edit_dialog','Redo',0,12,50,12,Redo,a['name1'].items.bt)
add(a,'brusheditor_button','Edit_dialog','Close',0,24,50,12,HideAll,a,'Edit_dialog')
------------------------------------------
--		About dialog         	--
------------------------------------------
add(a,'brusheditor_button','About_dialog','Info',0,0,50,12,ShowAll,a,'Info')
add(a,'brusheditor_button','About_dialog','Close',0,12,50,12,HideAll,a,'About_dialog')
------------------------------------------
--		Info			--
------------------------------------------
add(a,'brusheditor_text','Info','Tpt ingame brush editor\nVersion: 1\nAuthor: ssccsscc\n\nIf you have question post it\nin the thread on the tpt\nforum.',10,24)
add(a,'brusheditor_button','Info','Go to tpt forum',5,111,140,13,platform.openLink,"http://powdertoy.co.uk/Discussions/Thread/View.html?Thread=21788")
add(a,'brusheditor_button','Info','Ok',5,130,140,13,HideAll,a,'Info')
------------------------------------------
--		Open			--
------------------------------------------
add(a,'brusheditor_textbox','Open','File1',52,16,45,12,8,3)
add(a,'brusheditor_button','Open','Ok',10,50,35,13,load,a['Open'].items.File1.params, a['name1'].items.bt )
add(a,'brusheditor_button','Open','Cancel',55,50,35,13,HideAll,a,'Open')
add(a,'brusheditor_text','Open','Filename\nWithout ".ptb"',10,19)
------------------------------------------
--		Save As			--
------------------------------------------
add(a,'brusheditor_textbox','Save As','File1',52,16,45,12,8,3)
add(a,'brusheditor_button','Save As','Ok',10,50,35,13,SaveAs,a['Save As'].items.File1.params, a['name1'].items.bt )
add(a,'brusheditor_button','Save As','Cancel',55,50,35,13,HideAll,a,'Save As')
add(a,'brusheditor_text','Save As','Filename\nWithout ".ptb"',10,19)
------------------------------------------