// Credit to Archaicvirus for the updated code. I modified it a tiny bit.
// I also changed some variable & function names to make it more easily readable and added simple comments.

// If you spot any optimizations that could be made let me know, at a glance it seems fine.

function init()
{
	// Get all the entities with the targetname "shootable_trigger" then assign them to a variable.
	triggerArray = GetEntArray("shootable_trigger", "targetname");

	// Create the shootablesNeeded level variable then set it to the amount of entities in the triggerArray variable.
	level.shootablesNeeded = triggerArray.size;

	// Create the shootablesCollected level variable and set it to 0.
	level.shootablesCollected = 0;

	// Loop through all the entites in triggerArray
	foreach(trigger in triggerArray)
	{
		// Set the HintString to "".
		trigger SetHintString("");

		// Set the CursorHint to "HINT_NOICON".
		trigger SetCursorHint("HINT_NOICON");

		// Create a new property on the trigger named "bottle".
		// Get the target entity then assign it to "bottle".
		trigger.bottle = GetEnt(trigger.target, "targetname");

		// Call the trigger_wait function on this trigger entity.
		trigger thread trigger_wait();
	}
}

function trigger_wait()
{
	// Wait for the trigger to be activated.
	self waittill("trigger");

	// Delete the bottle(AKA model).
	self.bottle Delete();

	// Increment the shootablesCollected variable.
	level.shootablesCollected++;

	// Check if shootablesCollected is greater than or equal to shootablesNeeded.
	if (level.shootablesCollected >= level.shootablesNeeded)
	{
		// Call the give_reward function on the level.
		level thread give_reward();
	}

	// Print info to the screen.
	IPrintLnBold("Shootables Collected = [" + level.shootablesCollected + "]");
}

function give_reward()
{
	// Print info to the screen.
	IPrintLnBold("Reward Given");

	// Insert reward code here
}