Display 1-up text?

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Please chime in on a proposed restructuring of the ROM hacking sections.

05-02-24 02:06 PM

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Main - SMW Hacking - Display 1-up text?

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pieguy1732

Posted on 01-04-08 11:24 PM

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Since: 01-04-08

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I'm working on a block that can sometimes give an extra life. How would I make it so that when it does, it displays the red 1-up text that displays when you get five Yoshi Coins?

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blackhole89

Posted on 01-04-08 11:44 PM

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You might be able to exploit the routine that gives you a 1UP for stomping 8 enemies consecutively.

LDA $18D2
PHA           ;save old contents of consecutive stomp counter...
LDA #$08
STA $18D2     ;...max it out...
JSL $02ACE5   ;...call the gain points routine...
PLA
STA $18D2     ;...and restore the counter again.

The problem with this is that, I'd assume, it positions the effect based on the position of the current sprite as determined by the X accumulator. Of course, you might work around that as well by saving the X (high: $14E0, low: $E4) and Y (high: $14D4, low: $D8) locations of sprite 0, replacing them with the X/Y of your block, setting X to 0, triggering the above code and then restoring them, but that would be very hackish... there's probably a more dedicated routine (or even a block-based one) for that somewhere, but I am too lazy to look it up.

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Main - SMW Hacking - Display 1-up text?

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