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A C64 Game - Step 92

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Poor Sam was left out again. Now he can kill the boss too.


Since the boss is a special beast you wouldn't want Sam just to stand there and kill him without any reaction.

We add a new variable BOSS_HELD, similar to the SPRITE_HELD value.
So if SAM hurts the enemy, and it's the boss, the boss is released from Sam's grip: dec SPRITE_HP,x beq .EnemyKilled ;enemy was hurt lda BOSS_HELD beq .EnemyWasHurt ;release if end boss jmp .SamNotFirePushed

BOSS_HELD is set to 1 if Sam has the boss in his force grip. We check if the sprite caught is the last boss or one of his parts:.EnemyHit ;enemy hit! stx SPRITE_HELD ldy SPRITE_HELD inc SPRITE_HELD lda SPRITE_ACTIVE,y cmp #TYPE_BOSS7 beq .HoldingBoss cmp #TYPE_BOSS_PART beq .HoldingBoss jmp .NotHoldingBoss .HoldingBoss sty BOSS_HELD inc BOSS_HELD.NotHoldingBoss

Therefore we also need to clear the bit in case the enemy or Sam is killed:!zone KillEnemyKillEnemy ;is the enemy currently held? ldy SPRITE_HELD dey sty PARAM4 cpx PARAM4 bne .WasNotHeld lda #0 sta SPRITE_HELD sta BOSS_HELD

Obviously the boss should not move when being caught, so in BehaviourBoss7 we add an early bail out:.NoHitBack lda BOSS_HELD beq + rts+

The step also adds a few bug fixes, as in the boss not auto-moving the bats he spawned (as if they were body parts).

Have fun!

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