rotate.h

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#pragma once
 
#include "gesturelib.h"
#include "recognizer.h"
 
typedef struct rotate {
    // recognizer state
    state_t state;
    // user id of tracked group
    int uid;
    // number of tracked strokes
    int size;
    // rotation counterclockwise in radians
    float rotation;
    // has rotated at some point during the gesture
    char rotated;
} rotate_t;
 
void init_rotate();
 
void recognize_rotate(const touch_event_t* event);
 
const rotate_t* get_rotate();
 
int set_on_rotate(void (*listener)(const rotate_t*));