how do i collide two circles?

i have a character(not a sprite) that i can move with buttons and a enemy that moves randomly. how do i do collision?

lol this game is funny.

What does "V" on SPANIM is useful for? like on the HELP it says...value for internal variable but it doesnt say nothing else......anyway if i use SPANIM 0,"V",-20,1,-20,1,0 ...WHAT am i doing with SPANIM?

can someone explain to me how to use this?

DO I have to define everysingle sprite i want to flip?? if so how can i define the second sprite?

WHY IT DOES NOT FLIP? what am i doing wrong?

I need a little help here. How can i define my sprite looking to the left?

ok so on EXJUMP the program flips a sprite by writing 8 on SPCHR. why it doesn't work for me?

How can Flip a sprite using SPCHR without having to write a bunch of commas and words? like for example SPCHR 0,,,,,SPSHOW+SPREVH

Hello can someone help on this? i want mario to animate when i press the right button. but i want the animation to start from sprite 1 to sprite 3, not from sprite 0 to sprite 3. the thing is that i want to create a simple engine kinda like mario i have made all the movements the only thing i need is the animation if someone want to help and look at the code here is the key. E3C3N2NE

FIRST OF ALL MARIO IS NINTENDO PROPERTY THIS IS JUST FOR EDUCATIONAL PORPUSE. lol now that, that is out of the way...so i made mario bounce and lose velocity each time it goes down the y axis. and i have a bounce counter. the thing is that the bounce counts each time it goes down to the y axis. how can i make it stop counting when it stops jumping? here is the public key if someone want to help.

Hello i need a little help here. so i made my character but it bounce the same distance everytime. how can i make my character bounce a certain number of times? if so plz show me a example in code and explain?