Create onready variables for access

to the AudioStreamPlayer and 

the Timer

Preload three pop sound files into an array.

preload loads them into memory immediately, which is faster during gameplay.

This variable keeps track of how many pops are left to play. 

_ready() is called when the scene is loaded.

randomize() initializes the random number generator so that results aren’t always the same each time the game runs.

Create the fire function to fire the cannon

The fire() function activates the particles from 6 different emitters (Blue, Orange, etc.) by setting their emitting property to true. 

Chooses a random number of pops (between 3 to 5) to play and stores it in pops_remaining.

Manually calls the function that plays the first pop immediately, instead of waiting for the timer. 

If there are no pops left to play, the function exits early. 

Picks a random sound from the pop_sounds list.

Sets that sound as the stream for the pop_player.

Plays the sound.

Decreases the number of remaining pops by 1. 

If there are still pops to play, it starts the timer to call _on_pop_timer_timeout() again after a random short delay (between 0.05 and 0.2 seconds). 

In the check_point script

Check if the level is complete

and if it is, fire the Confetti_Cannon