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DrVonKitty · 2010-06-29 21:40:11

Hi, I have an AI project, which I've just updated. I wanted to add the abillity to decrease and increase attack, so I created it. However, there was a problem. The Script, is basically If touching enemy and enemy costume equals attack, Change health by -1. So, I added a variable there, but I can't make a negative variable! If anyone knows how, please tell me, so the attack can be changed. Thanks! (here's a link to the project if you want to see it) http://scratch.mit.edu/projects/DrVonKitty/1161086

12three · 2010-06-29 21:44:53

I'll take a look. smile

coolstuff · 2010-06-29 21:48:56

Hm... Variables should by default be allowed to go into the positive and negative... Is there something you've done to limit this?

DrVonKitty · 2010-06-30 09:37:27

Well, you see, the block has a DIFFERENT variable, with the plain variable in there. I'll show you.

[blocks]<change{ai health}by( <{ attack }>[/blocks]

DrVonKitty · 2010-06-30 09:39:46

That turned out as a miserable block. Well, you get the point still?

MaxtheWeirdo · 2010-06-30 09:42:54

positive * negative = negative
negative * negative = postive

That should help.

DrVonKitty · 2010-06-30 09:49:09

I know that math, but I don't know how that would make that negative. I need the Attack to be negative. If you can explain a little further, that would be nice.

DrVonKitty · 2010-06-30 09:54:41

wait... could [0-attack] work?

coolstuff · 2010-06-30 10:35:09

DrVonKitty wrote:
wait... could [0-attack] work?

Yes, you can either use "0 - attack" or "attack * -1" and it should work just fine.

Hope that helps!

Paddle2See made a comment earlier that it might be milliseconds faster to do a subtraction than a multiplication. He didn't seem too sure about it, though.

I commonly use "attack * -1."

DrVonKitty · 2010-06-30 10:51:55

Okay, I'll try that. I'll get to work on a V3 for my game now! Thanks guys!

coolstuff · 2010-06-30 11:02:37

DrVonKitty wrote:
Okay, I'll try that. I'll get to work on a V3 for my game now! Thanks guys!

No problem! Glad things are working out for you smile

DrVonKitty · 2010-06-30 11:57:52

All right! V3 is out!

Scratch

archived forums

#1 2010-06-29 21:40:11

How to Make a Negative Number

#2 2010-06-29 21:44:53

Re: How to Make a Negative Number

#3 2010-06-29 21:48:56

Re: How to Make a Negative Number

#4 2010-06-30 09:37:27

Re: How to Make a Negative Number

#5 2010-06-30 09:39:46

Re: How to Make a Negative Number

#6 2010-06-30 09:42:54

Re: How to Make a Negative Number

#7 2010-06-30 09:49:09

Re: How to Make a Negative Number

#8 2010-06-30 09:54:41

Re: How to Make a Negative Number

#9 2010-06-30 10:35:09

Re: How to Make a Negative Number

DrVonKitty wrote:

#10 2010-06-30 10:51:55

Re: How to Make a Negative Number

#11 2010-06-30 11:02:37

Re: How to Make a Negative Number

DrVonKitty wrote:

#12 2010-06-30 11:57:52

Re: How to Make a Negative Number

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