| Making screen call layer 2 Y position for a second and then return to other code |
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Forum Index - SMW Hacking - General SMW Hacking Help - ASM & Related Topics - Making screen call layer 2 Y position for a second and then return to other code |
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| Posted on 2012-03-03 07:58:14 AM |
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I have a concept:
LDA #$FF
LDA #$00
STA $1468
But I don't know how to add one second and then change to 00 back.
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| Posted on 2012-03-03 08:19:18 AM |
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Sometimes I wonder if you're being purposefully obtuse.
It seems you want to change layer 2... somehow... for 1 second. For that, you'll need to make a timer. Find some free ram, and count down for 60 frames. 60 frames = 1 second.
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| Posted on 2012-03-03 08:24:16 AM |
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Count down for 60 frames? How to do that?
?????????
STA $0DD4
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| Posted on 2012-03-03 12:44:52 PM |
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You need to use free RAM, increase it every frame, and check if it's #$3C (60 in dec).
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| Posted on 2012-03-03 04:42:53 PM |
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I guess I got it.
LDA $0DD4
CMP #$3C
BEQ Left
...
Is it OK or is it wrong?
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| Last edited on 2012-03-03 04:43:40 PM by Luigi370. |
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| Posted on 2012-03-03 05:43:40 PM |
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Nope, the free RAM never changes, it's always #$00. You need to increase it (INC) and then check.
Code INC $0DD4
LDA $0DD4
CMP #$3C
[...]
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| Last edited on 2012-03-03 05:43:57 PM by New Hacker. |
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| Posted on 2012-03-03 06:11:20 PM |
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I'm a bit confused.
I guess it sould be:
CodeINC $0DD4
LDA $0DD4
CMP #$3C
BNE FLASH
LDA $76
CMP #$01
BNE FLASH
BEQ Right
;;;;;;;;;;;;;;;;;;;;;;;;;;
INC $0DD4
LDA $0DD4
CMP #$3C
BNE FLASH
LDA $76
CMP #$01
BNE FLASH
BEQ Left
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| Posted on 2012-03-03 06:40:00 PM |
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Hmm... there's something wrong with it...
Code INC $0DD4
LDA $0DD4
CMP #$3C
BNE FLASH
LDA $76
CMP #$01
BNE FLASH
BEQ Right
Increase $0DD4 and compare its current value with #$3C, if it's not #$3C (any other value), then go to "FLASH", if it's #$3C, then continue. Check where Mario's facing, if he's facing left, go to "FLASH", and if he's facing right, then continue. You should put an RTL/S instead of semicolons, they don't work that way.
Code INC $0DD4
LDA $0DD4
#$3C
BNE FLASH
LDA $76
CMP #$01
BNE FLASH
BEQ Left
You'll never be able to jump to this part of the code, since it doesn't have a label.
Hint: use semicolons (;) to comment the code, that can help you to know what you are doing, for example:
Code LDA #$01 ;\ Make Mario
STA $19 ;/ big.
RTS ; And return.
Anyways, what exactly do you want to do?
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| Last edited on 2012-03-03 06:43:30 PM by New Hacker. |
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| Posted on 2012-03-03 06:55:04 PM |
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I wanna remake DKC2 flashlight fish effect with layer 2. I know it can be hard, but I wanna try. All I need now is just the flash effect when he is turning.
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| Posted on 2012-03-03 07:30:58 PM |
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The problem is, that I haven't played that game XD, and I don't now what it does. Sorry.
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| Posted on 2012-03-04 03:32:11 PM |
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Um... I think it would require HDMA and a lot of ASM. This is not possible to do for me, I mean, I can't do that kind of effects with my ASM knowledge... Sorry.
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| Posted on 2012-03-04 10:09:07 PM |
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That's definitely HDMA.
Could be reproduced with layer 3 or something but that means you'd have to sacrifice a layer.
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| Posted on 2012-03-05 08:20:30 AM |
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If you just wanted to make the screen flash white when Mario turns, then you could probably do that with some color math.
If you wanted to do the whole fish effect, then yeah, that would require HDMA.
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| Posted on 2012-03-06 10:31:45 AM |
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I wanna REMAKE. Not rip it off, but make a simpler remake. I need a timer countdown, but I don't know how to do this. And I wanna make flash, with just layer 2 Y position change.
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Forum Index - SMW Hacking - General SMW Hacking Help - ASM & Related Topics - Making screen call layer 2 Y position for a second and then return to other code |
