Routines
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29072: Handler: Frogs Check Egg Collision
Used by the routine at Handler_Frogs.
Return if an egg isn't being dropped at this point.
HandlerFrog01_CheckEggCollision 29072 LD A,(24489) Return if *EggDropFlag is unset.
29075 OR A
29076 RET Z
Check the first frog.
29077 LD HL,29161 HL=Frog1_StunCountdown.
29080 LD IY,56032 IY=Egg_X_Position.
29084 LD IX,56008 IX=Sprite02_3Wide_X_Position.
29088 CALL CheckEggCollision Call CheckEggCollision.
29091 JR C,HandlerFrog02_CheckEggCollision Jump to HandlerFrog02_CheckEggCollision if the egg isn't colliding with the first frog.
Item hit the first frog.
29093 LD A,(HL) Jump to HandlerEggCollision_Destroy01 if the frog is already stunned.
29094 OR A
29095 JR NZ,HandlerEggCollision_Destroy01
Stun the frog and set a random stun timer/ award points.
29097 LD A,R A=the contents of the Memory Refresh Register.
29099 OR %01000000 Set bit 6 (ensure a minimum stun duration).
29101 LD (HL),A Write the stun duration to the first frogs stun countdown.
29102 LD A,10 Call AddToScore to add 10 points to the score.
29104 CALL AddToScore
29107 CALL PlayHitSound Call PlayHitSound.
HandlerEggCollision_Destroy01 29110 CALL CancelEggDrop Call CancelEggDrop.
Check if the second frog is active (level above 1).
HandlerFrog02_CheckEggCollision 29113 LD A,(24497) Return if *CurrentLevel is equal to 1.
29116 CP 1
29118 RET Z
Check the second frog.
29119 LD IX,56012 IX=Sprite03_3Wide_X_Position.
29123 LD HL,29164 HL=Frog2_StunCountdown.
29126 CALL CheckEggCollision Call CheckEggCollision.
29129 RET C Return if the egg isn't colliding with the second frog.
Item hit the second frog.
29130 LD A,(HL) Jump to HandlerEggCollision_Destroy02 if the frog is already stunned.
29131 OR A
29132 JR NZ,HandlerEggCollision_Destroy02
Stun the second frog and award points.
29134 LD A,R A=the contents of the Memory Refresh Register.
29136 OR %00011111 Set bits 0-4 (ensure minimum stun duration).
29138 AND %01111111 Clear bit 7 (cap the maximum duration).
29140 LD (HL),A Write the stun duration to the second frogs stun countdown.
29141 LD A,10 Call AddToScore to add 10 points to the score.
29143 CALL AddToScore
HandlerEggCollision_Destroy02 29146 CALL CancelEggDrop Call CancelEggDrop.
29149 CALL PlayHitSound Call PlayHitSound.
29152 RET Return.
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