Routines
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AFAC: Accelerate Player
Used by the routine at GamePlay_Start.
Adds an acceleration to the velocity of the player in both directions and limits the result to the top speed (see LimitPlayerVelocity).
Input
D Y acceleration
E X acceleration
IX Actor record of the player
AcceleratePlayer AFAC LD A,E Fetch the X acceleration.
AFAD ADD A,(IX+$06) Add the X velocity of the player.
AFB0 CALL LimitPlayerVelocity Limit the X velocity.
AFB3 LD (IX+$06),A Set the new X velocity of the player.
AFB6 LD A,D Fetch the Y acceleration.
AFB7 ADD A,(IX+$07) Add the Y velocity of the player.
AFBA CALL LimitPlayerVelocity Limit the Y velocity.
AFBD LD (IX+$07),A Set the new Y velocity of the player.
AFC0 RET Return.
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