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/*
* keyvar.cpp
generalised cushioned keyboard controller
*/
#include "keyVar.h"
void keyVar::set(char _keyInc,char _keyDec,float _val,float _speed,float _accel,float _accelTime){
keyInc=_keyInc;
keyDec=_keyDec;
val=_val; //initial value
speed=_speed;
accel=_accel;
accelTime=_accelTime;
state=0;
timePressed=timeCalc=0;
}
void keyVar::keyPressed(char _key){
//need to deal with key repeat: OSX anyway
if (_key==keyInc&&state!=1) {
state=1;
timePressed=timeCalc=ofGetElapsedTimef();
printf("pressed %i\n",_key);
}
if (_key==keyDec&&state!=-1) {
state=-1;
timePressed=timeCalc=ofGetElapsedTimef();
printf("pressed %i\n",_key);
}
}
void keyVar::keyReleased(char _key){
if (_key==keyInc&&state==1) {
state=0;
printf("released %i\n",_key);
}
if (_key==keyDec&&state==-1) {
state=0;
printf("released %i\n",_key);
}
}
float keyVar::getVal(){
float segment = min(1.0f,(ofGetElapsedTimef()-timePressed)/accelTime);
if (state) val+=pow(segment,accel)*(ofGetElapsedTimef()-timeCalc)*speed*state;
timeCalc=ofGetElapsedTimef();
return val;
}
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