When players merge fruits to make a bigger fruit we should keep track of which is the biggest fruit they have made so far.
Add a helper variable for this.
Add a new function to the functions group
Add a number parameter called justSpawned
Add two conditions to the function:
If the value of the fruit which justSpawned is greater
than the current bestFruit
If the animation fames match
The best fruit is the one which has just spawned
Then you tween (smoothly move) the star to position it under the best fruit so far.
This is essentially an algorithm to find the biggest number.
Call this function after fruits have merged. Update the end of the processCollision function as shown by passing the animation frame name as the justSpawned number.