Freezing and pulling 100% at a CPU typically means you're running circles while computing something and never finish. One such case is in the spawn food code:

/*Choses a position at random anywhere on the play grid, execpt for the edges or the space which the
 * snake head occupies.*/
do { foodGridP…

There are many ways to do this…I will tell you of one using: smoothstep

• I'm assuming that your screen Y coordinates go from 0 at the top down to MAXY at the bottom of your screen
• Let's assume that at the bottom of your screen i.e. at Y = MAXY you want 10 platforms and at the top i.e. at Y = 0 of your…