Draw tool

players = game.Players
user=players.LocalPlayer;
uname=user.Name;
guis=user.PlayerGui;
pack=user.Backpack;

keyDowns={};
freeKeys={};
shortcuts={};

_G.mine=_G.mine or{};

name='Draw3D';
url='http://www.roblox.com/asset/?id=%d';

iconNormal=url:format(96578285);
iconOnDown=url:format(96584484);

ver=0;
drawPixel=0.10;
_G.drawLimit=_G.drawLimit or 1000;

_G.drawColor=_G.drawColor or Color3.new();





destroy=game.remove;
find=game.findFirstChild;
new=Instance.new;
with=function(c)
	return function(p)
		local o=type(c)=='string'and new(c)or c;
		local x=p.Parent;p.Parent=nil;
		for i,v in next,p do
			o[i]=v;
		end;
		if(x)then
			o.Parent=x;
		end;
		return o;
	end;
end;
getPlace=function()
	if(find(workspace,'draw')==nil)then
		new('Model',workspace).Name='draw';
	end;
	if(find(workspace.draw,uname)==nil)then
		new('Model',workspace.draw).Name=uname;
	end;
	return workspace.draw[uname];
end;
drawLine=function(start,target)
	local gui=with'BlockMesh'{
		Parent=with'Part'{
			CFrame=CFrame.new(start,target)*CFrame.new(0,0,-(start-target).magnitude/2);
			Size=Vector3.new(drawPixel,drawPixel,(start-target).magnitude+.325*drawPixel);
			Parent=getPlace();
			Color=_G.drawColor;
			BottomSurface=0;
			Anchored=true;
			TopSurface=0;
			formFactor=3;
			Name=name;
	}}.Parent;
	table.insert(_G.mine,gui);
	return gui;
end;
onDown=function()
	if(drawing)then
		return nil;
	end;
	if(selectGui.Adornee)then
		destroy(selectGui.Adornee);
	end;

	drawing=true;

	mouse.Icon=iconOnDown;
	ver=ver+1;


	local cVer,start,target=ver,mouse.hit.p;

	local group={};
	repeat
		Wait(0.02);

		if(mouse.target and mouse.target.Name~=name and mouse.hit.p~=start)then

			target=mouse.hit.p;

			table.insert(group,drawLine(start,target));

			start=target;
		end;
	until ver~=cVer;
	drawing=false;

	local groupM=new('Model',getPlace());
	for i,v in next,group do
		if(v:IsDescendantOf(Workspace))then
			v.Parent=groupM;
		end;
	end;
	if(next(groupM:children())==nil)then
		destroy(groupM);
	end;
end;
onUp=function()
	mouse.Icon=iconNormal;
	ver=ver+1;
end;
onKeyDown=function(k)
	if(freeKeys[k]==false)then
		return false;
	end;
	freeKeys[k]=false;
	Wait(0.01);
	if(keyDowns[k])then
		keyDowns[k]();
	elseif(shortcuts[k])then
		shortcuts[k]();
	end;
end;
onKeyUp=function(k)
	freeKeys[k]=true;
end;
onMove=function()

end;
onSelect=function(lmouse)
	frame.Visible=true;

	mouse=lmouse;

	mouse.Icon=iconNormal;

	mouse.Button1Down:connect(onDown);
	mouse.KeyDown:connect(onKeyDown);
	mouse.Button1Up:connect(onUp);
	mouse.KeyUp:connect(onKeyUp);
	mouse.Move:connect(onMove);
end;
onDeselect=function()
	ver=ver+1;
	frame.Visible=false;
	selectGui.Adornee=nil;
	mouse.Icon=iconNormal;
	for i,v in next,freeKeys do
		freeKeys[i]=true;
	end;
end;
addButton=function(title,shortcut,fun)
	with'TextButton'{
		Text=string.format(' %s (%s)',title,shortcut);
		TextXAlignment=0;
		Parent=frame;
	}.MouseButton1Up:connect(fun);

	shortcuts[shortcut]=fun;

	local c=#frame:children();
	for i,v in next,frame:children()do
		v.Position=UDim2.new(0,0,0,20*(i-1));
		v.Size=UDim2.new(1,0,0,20);
	end;

	frame.Position=UDim2.new(1,-152,.5,-c*10);
	frame.Size=UDim2.new(0,150,0,c*20);
end;








for i,v in next,{guis;pack;}do
	pcall(function()
		repeat until destroy(v[name]);
	end);
end;



tool=with'HopperBin'{
	Parent=pack;
	Name=name;
};
tool.Deselected:connect(onDeselect);
tool.Selected:connect(onSelect);




screen=with'ScreenGui'{
	Parent=guis;
	Name=name;
};
frame=with'Frame'{
	Parent=screen;
	Visible=false;
};
clframe=with'Frame'{
	Position=UDim2.new(.5,-50,.5,-50);
	Size=UDim2.new(0,100,0,100);
	Visible=false;
	Parent=screen;
};
selectGui=with'SelectionBox'{
	Parent=screen;
};

local c=0;
for y=0,7 do
	for x=0,7 do
		local color=BrickColor.palette(c).Color;

		with'ImageButton'{
			Position=UDim2.new(.125*x,0,.125*y);
			Size=UDim2.new(.125,0,.125);
			BackgroundColor3=color;
			Parent=clframe;
		}.MouseButton1Up:connect(function()
			clframe.Visible=false;
			_G.drawColor=color;
		end);

		c=c+1;
	end;
end;

addButton('Color','c',function()
	clframe.Visible=true;
end);
addButton('Remove your draws','r',function()
	repeat
		destroy(_G.mine[1]);
		table.remove(_G.mine,1);
		Wait(0.01);
	until nil;
end);
addButton('Remove global draws','k',function()
	destroy(workspace.draw);
	while(_G.mine[1])do
		destroy(_G.mine[1]);
		table.remove(_G.mine,1);
	end;
end);
addButton('Remove selected','x',function()
	repeat
		if(find(workspace,'draw'))then
			local dt=mouse.target;
			if(dt and dt:IsDescendantOf(workspace.draw))then
				selectGui.Adornee=dt.Parent;
			else
				selectGui.Adornee=nil;
			end;
		else
			selectGui.Adornee=nil;
		end;
		Wait(0.01);
	until freeKeys.x;
	selectGui.Adornee=nil;
end);




repeat
	Wait(0.01);
	if(next(_G.mine)and _G.mine[_G.drawLimit])then
		destroy(_G.mine[1]);
		table.remove(_G.mine,1);
	end;
until script.Parent==nil or tool.Parent==nil;
script.Disabled=true;
destroy(screen);