A little quick experiment I've made tinkering with normals. Control the Black Hole with your mouse. Enable it using Space See more at https://scratch.mit.edu/studios/51685755 ! Try pressing a set of keys... -- < HOW IT WORKS > ------------------------------------------ The matter needs to get sucked in the black hole using X and Y velocities, but we don't know how to get the value of the velocities to change to yet. That's where Normals come in! Normals can calculate the axis at a perpendicular line! So we insert the direction value! ------------------------------------------------------------------------- [ Point towards ( Black hole ) ] [ Change variable X by ((Cos of ( Direction ))) ] [ Change variable Y by ((Sin of ( Direction ))) ] ------------------------------------------------------------------------- But there's a problem right away... The matter actively pushes away from the black hole! That's because the normal is actually flipped, outputting the values that we don't want. So, we change the X Direction by 240 and the Y by 90. ------------------------------------------------------------------------- [ Point towards ( Black hole ) ] [ Change variable X by ((Cos of ((Direction) + (240)))) ] [ Change variable Y by ((Sin of ((Direction) + (90))) ] ------------------------------------------------------------------------- Now, we should be seeing the matter getting pulled inside the black hole! ------------------------------------------------------------------------- Used SFX from Kirby's Dream Land Kirby by HAL Labratories and Nintendo #experiment #math #hole #explore #all
