Author Topic: [Axe] Gravity Walls (Read 12822 times)

Hayleia · « **Reply #15 on:** August 10, 2012, 05:29:52 am »

Quote from: Progammer on August 10, 2012, 04:57:20 am

But what about right and left arrows ? cant use :

0->I
[xxx]->Pic0
[xxx]
.the two sprites are the same!!
While(xxx)
I=I+1%8
Pt-On(0,0,Pic0+I)
End

Two possibilities:
- use Matrefeytontias' Axiom, with bit operations
- use the same method, with sprites but adapted, see below

Code: [Select]

[XXXX]->Str0
[XXXX]
[XXXX]
[XXXX]
[XXXX]
[XXXX]
[XXXX]
[XXXX]
.8 frames for the arrow sprite
.the first one is a simple arrow
.the next one is the previous one shifted by one pixel
.the next one is the previous one shifted by one pixel
.etc
While meh
 I++
 Pt-Off(..,..,I^8*8+Str0)
End

Also, I don't know which language Eiyeron used but that is not Axe

Progammer · « **Reply #16 on:** August 10, 2012, 05:45:01 am »

Is this what you means ?

if I = 0 , Pt-Off(,,Str0)
if I = 1 , Pt-Off(,,Str0+8)
if I = 2 , Pt-Off(,,Str0+16)

you won't use 8 sprites for a single animation ! Must exist a better way ..

Matrefeytontias · « **Reply #17 on:** August 10, 2012, 05:52:49 am »

My ASM code will be faster than every Axe routine you can do for scrolling sprite, I recommend you to use it instead of doing the same thing in Axe, which will be heavier and slower.

Also : now I have the collisions working !

Next, I'll implement the arrows, and it'll be them which change the gravity. I'll also add a door in order to have a fully functional first level

EDIT : I joined the Axiom in *.8xv format.

Hayleia · « **Reply #18 on:** August 10, 2012, 05:55:35 am »

Quote from: Progammer on August 10, 2012, 05:45:01 am

Is this what you mean ?

if I = 0 , Pt-Off(,,Str0)
if I = 1 , Pt-Off(,,Str0+8)
if I = 2 , Pt-Off(,,Str0+16)

you won't use 8 sprites for a single animation ! Must exist a better way ..

Yes, that is what I mean, but my code is more efficient than all your Ifs

Quote from: Matrefeytontias on August 10, 2012, 05:52:49 am

My ASM code will be faster than every Axe routine you can do for scrolling sprite, I recommend you to use it instead of doing the same thing in Axe, which will be heavier and slower.

Release the 8xv then

Matrefeytontias · « **Reply #19 on:** August 10, 2012, 05:58:42 am »

Yeah, you're right sorry ^^'

Progammer · « **Reply #20 on:** August 10, 2012, 06:45:04 am »

cant manipulate bytezs with axe ? because to scroll , you just have to /2 or *2 and add the "neigbour byte"

Matrefeytontias · « **Reply #21 on:** August 10, 2012, 06:46:54 am »

Of course you can, but it'll be slow since you can't use bit rotations and shift (what my ASM code does).

Hayleia · « **Reply #22 on:** August 10, 2012, 06:48:35 am »

Quote from: Progammer on August 10, 2012, 06:45:04 am

cant manipulate bytezs with axe ? because to scroll , you just have to /2 or *2 and add the "neigbour byte"

Yes, you can. But the problem is not the possibility but the speed and the difficulty. It is also possible to make a raycaster in TI-Basic or a math program in ASM but it is much more convenient to do a raycaster in ASM and a math program in TI-Basic. And shifting a sprite with ASM will probably be faster and smaller than doing it in Axe.

edit: ninja'd

Progammer · « **Reply #23 on:** August 10, 2012, 07:49:10 am »

Yes but I don't know Asm well :p What is shift ?

Matrefeytontias · « **Reply #24 on:** August 10, 2012, 08:03:15 am »

For left and right scrolling, I use respectively the rlc and rrc commands. They are shifting commands, for example you have 10110101. You apply rlc on it ;the command shifts ("décaler" en Français) the bits once on the left, and previous bit 7 is stored into bit 0. So, if you do :

Code: [Select]

rlc %10110101 ; % says that it's a binary number
you get
01101011

Same for rrc, but for the right.

Progammer · « **Reply #25 on:** August 10, 2012, 08:13:39 am »

I got it thank you

Matrefeytontias · « **Reply #26 on:** August 10, 2012, 08:17:04 am »

Since this is just one ASM command repeated, it's way faster than Axe code, which use a lot of routines for it

V1mes · « **Reply #27 on:** August 10, 2012, 09:36:21 am »

Just out of interest, what kind of routines?

Matrefeytontias · « **Reply #28 on:** August 10, 2012, 09:44:06 am »

Here is something in Axe which has the same effect as RLC. Here, I want to do RLC on the address $90D3 :

Code: [Select]

{E90D3}e7 or ({E90D3}*2}→{E90D3}I let you imagine what does Axe, when we can do it in ASM with only two commands :

Code: [Select]

ld hl,$90D3
rlc (hl)

Hayleia · « **Reply #29 on:** August 10, 2012, 09:47:38 am »

Here is how to do it in Axe:

Code: [Select]

E90D3
Asm(CB06)

Author Topic: [Axe] Gravity Walls (Read 12822 times)

Hayleia

Re: [Axe] Gravity Walls

Progammer

Re: [Axe] Gravity Walls

Matrefeytontias

Re: [Axe] Gravity Walls

Hayleia

Re: [Axe] Gravity Walls

Matrefeytontias

Re: [Axe] Gravity Walls

Progammer

Re: [Axe] Gravity Walls

Matrefeytontias

Re: [Axe] Gravity Walls

Hayleia

Re: [Axe] Gravity Walls

Progammer

Re: [Axe] Gravity Walls

Matrefeytontias

Re: [Axe] Gravity Walls

Progammer

Re: [Axe] Gravity Walls

Matrefeytontias

Re: [Axe] Gravity Walls

V1mes

Re: [Axe] Gravity Walls

Matrefeytontias

Re: [Axe] Gravity Walls

Hayleia

Re: [Axe] Gravity Walls