Astroids help?

[dxfan101010]

Ok so i am making an **Astroids game ** and its an the home screen. iv got the flight "engine" working and the laser but i cant figure out how to make 5 astroids float around until they get shot heres my code
I have read all the topics i could but i couldnt find what i needed

[tr1p1ea]

Have you thought about using a list to keep track of your asteroids X,Y's etc?

[dxfan101010]

Sort of i am not all that great with list yet. i thought about using variables but that would take up 2 much room. how would you make the astroids float like they do in the game. i could use randint to start the positions and L1 for X and L2 gor Y but how would you add or subtract based on the direction they are going.

[Weregoose]

Here's one you might try, since those For( loops are so similar:

If Q=24 or Q=26
Then
Y→B
For(A,B,1+15(Q=26),1-2(Q=24
Output(X,A,"-
End
End

(But then, I'm not sure if we have to store to B on that one.)

The first line can be tempered further. Imagine that 24 and 26 are the only two numbers that'll leave a "one" after they are reduced by 25. One of those values will be negative, and the other will be positive:

If Q-25=-1 or Q-25=1

To fix that, we can take the absolute value of both sides (on both equations):

If abs(Q-25)=abs(-1) or abs(Q-25)=abs(1)

Simplify:

If abs(Q-25)=1 or abs(Q-25)=1

Since we are now basically testing something against itself with or, we can remove the redundancy:

If abs(Q-25)=1

Finally, bringing the 1 to the other side of the equation allows us to drop an ending parenthesis:

If 1=abs(Q-25

This is the exact same test as If Q=24 or Q=26!

[dxfan101010]

Omfg I had to read that like 4 times to get is

If 1=abs(Q-25
Then
Y→B
For(A,B,1+15(Q=26),1-2(Q=24
Output(X,A,"-
End
End

Replaces all this


If Q=24:Then
Y/->/B
For(A,B,1,-1)
Output(X,A,"-
End
End
If Q=26:Then
Y/->/B
For(A,B,16)
Output(X,A,"-
End
End

so could you do

If 1=abs(Q-26
Then
X→B
For(A,B,1+7(Q=34),1-2(Q=25
Output(Y,A,"'
End
End

ok so this is not doing what its supposed to its giving me a domain err what did i do wrong i think its right here

[Weregoose]

If not post make sense of ounce, note please its drawing was in night's middle after day not short.

You swapped A and Y in the output. The combining of the loops was done brilliantly, but there's the small matter of getting the first condition to work the way it should... Starting off with If Q=25 or Q=34, we want to find a number that will produce the same result (ignoring sign, positive or negative) whether it was subtracted from 25 or from 34. The target number in any case will always turn out to be the midpoint between the two values, or the average.

Looking at 1=abs(Q-25)—the one I wrote—the 1 on the left-hand side of the equation is the absolute distance between either of 24 or 26, and their average (which is 25). abs(24-25) equals 1, and abs(26-25) equals 1. 24 and 26 are the only two numbers where subtracting 25 and taking the absolute value is going to equal 1 – this is why 1 needs to be the number that we compare with in the optimized form!

For 25 and 34, the number will be different. Subtracting the average (29.5) from either one of these numbers will give the same answer between them, but it won't be 1 like it was last time. As both abs(25-29.5) and abs(34-29.5) equal 4.5, the "optimized" form should be If 4.5=abs(Q-29.5). But, if we were trying to save space with this, then the decimals have ruined it already: the original form was smaller. We can manage to salvage a byte by multiplying both sides by 2 to get 9=2abs(Q-29.5, but there is nothing that we can do about the 29.5 inside in the function.

Well, there is .1>fPart(Q[font="verdana"]³√(3

[dxfan101010]

Thank you Weregoose it was relly late but after fixing that first conditonial and changing Y and A it looks good and works great it saved about 30 byts
Her is the cod ewith the replaced loops

[ztrumpet]

[cssc]

A better way to fill a list with random numbers A through B. C is how many numbers you want

randInt(A,B,C ->L1

[woodswolf]

Randint is slightly faster from experience

When considering randInt(A,B,C
rand can do exactly the same
A+int(Brand(C

however, after 15 seconds the randint part says MEMORY ERROR when C = 999
and rand says MEMORY ERROR after 17 seconds when C = 999

[ztrumpet]

@cssc
Duh!
I forgot...

@woodswolf
Wow, Let me find DarkerLine's command info for on rand.
Edit: Here they are: http://www.unitedti.org/index.php?showtopic=6883


Kinda like Weregoose said:
It's best to do 1=abs(K-25 but what if you have three or more numbers?
Do this: max(K={24,25,26,34 (Numbers here are an example)
This is also better when the difference between two numbers is odd. ( max(K={21,22 is smaller than .5=abs(K-21.5 )

[dxfan101010]

[ztrumpet]

You could do L1+1->L1. It adds everything in L1 by one.

[dxfan101010]

so could i do a for loop like
For(X,1,3)
1+L1(X/->/L1(X
End

this would add 1 to the first three elements of list one right

[ztrumpet]

Yes. You might want to use two lists so you could use L1+1 and L2-1. This would be quicker and smaller.

[dxfan101010]

Ok thats kinda what i was thinking ill work on the astroids part after dinner and deadliest warrior thank you for all the help again.

[ztrumpet]

Ur Welcome.
Are you are going to post the finished game here? (I know your not finished yet, but...)

[dxfan101010]

Yes when i finish or when i need more help ill post the new code up here. but my link port is broken so it will just be hand typed code.

[ztrumpet]

Cool. It sounds like a fun game.

[dxfan101010]

Yeah iv had fun making it it took me like 3 days to get the laser loop to fire in onl one direction but it will probley take me a while to finish because i have camp and then i am going to alaska but ill work on it as much as i can