XeO3 - The Ultimate Plus/4 Shoot'Em'Up

PLAYSOUND EffectNumber

Args:

EffectNumber: 1. shooting sfx; 2. explosion; 3. ting!

This function taps directly into the sound system (TED on the Plus/4) and lets you play a sound effect. The value passed is loaded in the to accumulator (A register) whereby it then calls PlaySFX. There are currently only 3 sound effects on the Plus/4. Shooting, Explosions and a Ting! for when you pick up a coin.

Example: coin, coin!

Coin falls after an explosion:

FallingPath_BigCoin:
        DRIFT 0                                ; cancel any drift
        PLAYSOUND 1                    ; play BOOM sound effect
        SETANIM BoomAnim           ; set animation
        PAUSE 1+6*2                       ; wait for animation to finish
        SETANIM CoinBigAnim        ; set animation
        MOVE 0,-4
        MOVE 0,-3
        MOVE 0,-2
        MOVE 0,-2
        MOVE 0,-1
        MOVE 0,-1
        MOVE 0,-1
        MOVE 0,0
        MOVE 0,1
        MOVE 0,1
        MOVE 0,1
        MOVE 0,2
        MOVE 0,2
        MOVE 0,3
        MOVE 0,4
        PFOR 50
                MOVE 0,5
        PNEXT
        KILLSPRITE