-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
--
-- OrbitBot, a simple robot that finds the nearest TestItem and orbits it
-- Note that this relies on line-of-sight navigation, so only good for open levels
--
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------


-------------------------------------------------------------------------------
-- Setup; all vars declared here are global unless declared with "local" keyword

function main()
    orbitAng = 0
    orbitRadius = 900
    isInOrbit = false
    targetItem = nil
end


-------------------------------------------------------------------------------
-- This function is called once and should return the robot's name

function getName()
    return( "OrbitBot" )
end


-------------------------------------------------------------------------------
-- This is called by the robot's idle routine each tick.
-- This function must be present for the robot to work!

items = { }

function onTick(deltaTime)

   -- if(targetItem == nil) then
    --    table.clear(items)
     --   targetItem = findClosest(findGlobalObjects(items, ObjType.SoccerBallItem))
    --end



   local targetItems = findGlobalObjects(items, ObjType.SoccerBallItem);
  -- table.insert(targetItems,0,bot:getShip());

   local count = 0;
   for key, targetItem in pairs(targetItems) do
   		local cent = point.new(0,0);
   		local pos = targetItem:getLoc();
   		local delt = pos-cent;
   		local deltdir = point.normalize(delt);

		local ang = point.angleTo(cent, pos);
		local nang = ang+(math.pi/2);
		local ndir = point.new(math.cos(nang), math.sin(nang));

		local force = -2000;
		local nvel = ndir * -1000 + deltdir*force;
		local cvel = targetItem:getVel();
		local p = 0.05;--TODO use a time delta for this later
		local lerped = (((nvel-cvel)*p)+cvel);

		local dst = point.length(delt)
		if (dst < 470) then
			if (dst > 280) then
				targetItem:setLoc(deltdir*270);
			elseif (dst < 150) then
				targetItem:setLoc(deltdir*5000);
			end
		end



		--targetItem:setLoc(point.new(100,100));
		targetItem:setVel(lerped);

   end





   -- bot:setThrustToPt( dest )                         -- Travel towards calculated point
    --bot:setAngle( point.angleTo( botLoc, itemLoc ) )  -- Aim ship that way too
end