Chris Taylor / Mbed 2 deprecated RETRO-CaveDweller Featured

Platform game written for the GHI/OutrageousCircuits RETRO game device. Navigate the caves collecting all the pickups and avoiding the creatures and haunted mine carts that patrol the caves. Oh and remember to watch out for the poisonous plants... This game demonstrates the ability to have multiple animated sprites where the sprites can overlap the background environment. See how the player moves past the fence and climbs the wall in the 3rd screen.

Dependencies:   mbed

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Show/hide line numbers SoundBlock.h Source File

SoundBlock.h

00001 #ifndef __SOUNDBLOCK_H__
00002 #define __SOUNDBLOCK_H__
00003 
00004 #define US_PER_BIT  32
00005 
00006 // Fix16 representation of 1000000/32
00007 #define FREQ_NUMERATOR 0x7a120000
00008 
00009 #define TONE(stepCount, stepDuration, pitch, pitchSlide, duty, dutySlide) SoundBlock(SoundBlock::Tone, stepCount, stepDuration, pitch, pitchSlide, duty, dutySlide)
00010 #define NOISE(stepCount, stepDuration, pitch, pitchSlide) SoundBlock(SoundBlock::Noise, stepCount, stepDuration, pitch, pitchSlide, 128, 0)
00011 #define PAUSE(stepCount, stepDuration) SoundBlock(SoundBlock::Pause, stepCount, stepDuration, 0, 0, 0, 0)
00012 
00013 #define CREATE_EFFECT(name) \
00014 static const SoundBlock name[] = \
00015 { \
00016 
00017 #define END_EFFECT \
00018 };
00019 
00020 #define EFFECT(name) name, sizeof(name)/sizeof(SoundBlock)
00021 
00022 class SoundChannel;
00023 
00024 class SoundBlock
00025 {
00026     public:
00027         enum ToneType {Tone, Noise, Pause};
00028         
00029     public:
00030         SoundBlock(ToneType toneType, uint16_t stepCount, uint16_t stepDuration, uint16_t pitch, int16_t pitchSlide, uint8_t duty, int8_t dutySlide);
00031         SoundBlock(ToneType toneType, uint16_t stepCount, uint16_t stepDuration);
00032         
00033     protected:
00034         SoundBlock();
00035     
00036     private:
00037         void initialize(ToneType toneType, uint16_t stepCount, uint16_t stepDuration, uint16_t pitch, int16_t pitchSlide, uint8_t duty, int8_t dutySlide);
00038         
00039     protected:
00040         inline ToneType getToneType() { return _toneType; }
00041         inline uint16_t getStepCount() { return _stepCount; }
00042         inline uint16_t getStepDuration() { return _stepDuration; }
00043         inline fix16_t getPitch(fix16_t offset) { return fix16_div(FREQ_NUMERATOR, _pitch + offset); }
00044         inline fix16_t getPitchSlide() {return _pitchSlide; }
00045         inline uint8_t getDuty(int8_t offset) { return (uint8_t)(_duty + offset); }
00046         inline int8_t getDutySlide() { return _dutySlide; }
00047         
00048     private:
00049         ToneType    _toneType;
00050         uint16_t    _stepCount;
00051         uint16_t    _stepDuration;
00052         fix16_t     _pitch;
00053         fix16_t     _pitchSlide;
00054         uint8_t     _duty;
00055         int8_t      _dutySlide;
00056         
00057     friend class SoundChannel;
00058 };
00059 #endif //__SOUNDBLOCK_H__
00060 
00061
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