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https://github.com/thestk/stk
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Version 3.0
This commit is contained in:
committed by
Stephen Sinclair
parent
7c0ee03d60
commit
868787a5f9
116
STK/Marimba.cpp
Normal file
116
STK/Marimba.cpp
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/*******************************************/
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/* Marimba SubClass of Modal4 Instrument, */
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/* by Perry R. Cook, 1995-96 */
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/* */
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/* Controls: CONTROL1 = stickHardness */
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/* CONTROL2 = strikePosition*/
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/* CONTROL3 = vibFreq */
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/* MOD_WHEEL= vibAmt */
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/*******************************************/
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#include "Marimba.h"
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#include "SKINI11.msg"
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Marimba :: Marimba() : Modal4()
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{
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// Concatenate the STK RAWWAVE_PATH to the rawwave file
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char file[128];
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strcpy(file, RAWWAVE_PATH);
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wave = new RawWvIn(strcat(file,"rawwaves/marmstk1.raw"),"oneshot");
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wave->normalize();
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wave->setRate((MY_FLOAT) 0.5); /* normal stick */
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this->setRatioAndReson(0, (MY_FLOAT) 1.00,(MY_FLOAT) 0.9996); /* Set all 132.0 */
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this->setRatioAndReson(1, (MY_FLOAT) 3.99,(MY_FLOAT) 0.9994); /* of our 523.0 */
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this->setRatioAndReson(2,(MY_FLOAT) 10.65,(MY_FLOAT) 0.9994); /* default 1405.0 */
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this->setRatioAndReson(3,-(MY_FLOAT) 2443.0,(MY_FLOAT) 0.999); /* resonances 2443.0 */
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this->setFiltGain(0,(MY_FLOAT) 0.04); /* and */
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this->setFiltGain(1,(MY_FLOAT) 0.01); /* gains */
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this->setFiltGain(2,(MY_FLOAT) 0.01); /* for each */
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this->setFiltGain(3,(MY_FLOAT) 0.008); /* resonance */
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directGain = (MY_FLOAT) 0.1;
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multiStrike = 0;
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}
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Marimba :: ~Marimba()
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{
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delete wave;
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}
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void Marimba :: setStickHardness(MY_FLOAT hardness)
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{
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stickHardness = hardness;
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wave->setRate((MY_FLOAT) (0.25 * (MY_FLOAT) pow(4.0,stickHardness)));
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masterGain = (MY_FLOAT) 0.1 + ((MY_FLOAT) 1.8 * stickHardness);
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}
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void Marimba :: setStrikePosition(MY_FLOAT position)
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{
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MY_FLOAT temp,temp2;
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temp2 = position * PI;
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strikePosition = position; /* Hack only first three modes */
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temp = (MY_FLOAT) sin(temp2);
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this->setFiltGain(0,(MY_FLOAT) 0.12 * temp); /* 1st mode function of pos. */
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temp = (MY_FLOAT) sin(0.05 + (3.9 * temp2));
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this->setFiltGain(1,(MY_FLOAT) -0.03 * temp); /* 2nd mode function of pos. */
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temp = (MY_FLOAT) sin(-0.05 + (11 * temp2));
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this->setFiltGain(2,(MY_FLOAT) 0.11 * temp); /* 3rd mode function of pos. */
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}
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void Marimba :: setModulationSpeed(MY_FLOAT mSpeed)
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{
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/* don't bother here, marimba decay so fast, mod doesn't make sense */
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}
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void Marimba :: setModulationDepth(MY_FLOAT mDepth)
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{
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}
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void Marimba :: strike(MY_FLOAT amplitude)
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{
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int temp;
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temp = rand() >> 10;
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if (temp < 2) {
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multiStrike = 1;
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#if defined(_debug_)
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printf("striking twice here!!\n");
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#endif
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}
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else if (temp < 1) {
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multiStrike = 2;
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#if defined(_debug_)
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printf("striking three times here!!!\n");
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#endif
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}
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else multiStrike = 0;
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Modal4::strike(amplitude);
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}
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void Marimba :: controlChange(int number, MY_FLOAT value)
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{
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#if defined(_debug_)
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printf("Marimba : ControlChange: Number=%i Value=%f\n",number,value);
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#endif
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if (number == __SK_StickHardness_)
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this->setStickHardness(value * NORM_7);
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else if (number == __SK_StrikePosition_)
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this->setStrikePosition(value * NORM_7);
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else if (number == __SK_ModFrequency_)
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vibr->setFreq((value * NORM_7 * (MY_FLOAT) 12.0));
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else if (number == __SK_ModWheel_)
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vibrGain = (value * NORM_7);
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else if (number == __SK_AfterTouch_Cont_)
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this->strike(value * NORM_7);
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else {
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printf("Marimba : Undefined Control Number!!\n");
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}
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}
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MY_FLOAT Marimba :: tick()
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{
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if (multiStrike>0)
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if (wave->isFinished()) {
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wave->reset();
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multiStrike -= 1;
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}
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return Modal4::tick();
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}
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