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49274: Intro sequence lightning - flashing & sound effects
49274 LD A,6 There are 6 lightning flashes between Maroc's sprite movement segments
49276 LD (60111),A
49279 CALL 58896 Toggle sky colour between blue and yellow colour
49282 LD A,128 Length/frequency of sound effect
49284 LD (60246),A Store length/frequency counter
49287 LD (60103),A Also store as sound effect repeat counter
49290 CALL 57815 Play sound effect
49293 LD A,(60103)
49296 DEC A Inner loop - decrement counter and repeat sound effect (128 iterations)
49297 JR NZ,49287
49299 LD A,(60111) Outer loop - decrement counter and repeat lightning effect (6 flashes)
49302 DEC A
49303 JR NZ,49276 Repeat 6 times
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