49 lines
991 B
C++
49 lines
991 B
C++
#include "input/input_state.h"
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#include "math/geom2d.h"
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// WIP - doesn't do much yet
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// Mainly for detecting (multi-)touch gestures but also useable for left button mouse dragging etc.
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enum Gesture {
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GESTURE_DRAG_VERTICAL = 1,
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GESTURE_DRAG_HORIZONTAL = 2,
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GESTURE_TWO_FINGER_ZOOM = 4,
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GESTURE_TWO_FINGER_ZOOM_ROTATE = 8,
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};
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// May track multiple gestures at the same time. You simply call GetGestureInfo
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// with the gesture you are interested in.
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class GestureDetector {
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public:
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GestureDetector();
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TouchInput Update(const TouchInput &touch, const Bounds &bounds);
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bool IsGestureActive(Gesture gesture) const;
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void GetGestureInfo(Gesture gesture, float info[4]);
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private:
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Bounds bounds_;
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// jazzhands!
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enum Locals {
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MAX_PTRS = 10
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};
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struct Pointer {
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bool down;
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double downTime;
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float lastX;
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float lastY;
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float downX;
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float downY;
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float deltaX;
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float deltaY;
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float distanceX;
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float distanceY;
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};
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Pointer pointers[MAX_PTRS];
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uint32_t active_;
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};
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