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Reviewed some compilation issues #1997

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This commit is contained in:
raysan5 2021-09-21 15:06:06 +02:00
commit 1627f34032
1 changed files with 112 additions and 96 deletions
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157
src/gestures.h
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@ -61,36 +61,45 @@
// Types and Structures Definition
// NOTE: Below types are required for GESTURES_STANDALONE usage
//----------------------------------------------------------------------------------
#if defined(GESTURES_STANDALONE)
#ifndef __cplusplus
// Boolean type
typedef enum { false, true } bool;
#endif
// Vector2 type
typedef struct Vector2 {
float x;
float y;
} Vector2;
// Gestures type
// NOTE: It could be used as flags to enable only some gestures
typedef enum {
GESTURE_NONE = 0,
GESTURE_TAP = 1,
GESTURE_DOUBLETAP = 2,
GESTURE_HOLD = 4,
GESTURE_DRAG = 8,
GESTURE_SWIPE_RIGHT = 16,
GESTURE_SWIPE_LEFT = 32,
GESTURE_SWIPE_UP = 64,
GESTURE_SWIPE_DOWN = 128,
GESTURE_PINCH_IN = 256,
GESTURE_PINCH_OUT = 512
} Gestures;
// Boolean type
#if defined(__STDC__) && __STDC_VERSION__ >= 199901L
#include <stdbool.h>
#elif !defined(__cplusplus) && !defined(bool)
typedef enum bool { false, true } bool;
#endif
typedef enum { TOUCH_UP, TOUCH_DOWN, TOUCH_MOVE } TouchAction;
#if !defined(RL_VECTOR2_TYPE)
// Vector2 type
typedef struct Vector2 {
float x;
float y;
} Vector2;
#endif
#if defined(GESTURES_STANDALONE)
// Gestures type
// NOTE: It could be used as flags to enable only some gestures
typedef enum {
GESTURE_NONE = 0,
GESTURE_TAP = 1,
GESTURE_DOUBLETAP = 2,
GESTURE_HOLD = 4,
GESTURE_DRAG = 8,
GESTURE_SWIPE_RIGHT = 16,
GESTURE_SWIPE_LEFT = 32,
GESTURE_SWIPE_UP = 64,
GESTURE_SWIPE_DOWN = 128,
GESTURE_PINCH_IN = 256,
GESTURE_PINCH_OUT = 512
} Gesture;
#endif
typedef enum {
TOUCH_ACTION_UP = 0,
TOUCH_ACTION_DOWN,
TOUCH_ACTION_MOVE,
TOUCH_ACTION_CANCEL
} TouchAction;
// Gesture event
typedef struct {
@ -115,11 +124,12 @@ extern "C" { // Prevents name mangling of functions
void ProcessGestureEvent(GestureEvent event); // Process gesture event and translate it into gestures
void UpdateGestures(void); // Update gestures detected (must be called every frame)
#if defined(GESTURES_STANDALONE)
void SetGesturesEnabled(unsigned int flags); // Enable a set of gestures using flags
bool IsGestureDetected(int gesture); // Check if a gesture have been detected
int GetGestureDetected(void); // Get latest detected gesture
int GetTouchPointCount(void); // Get touch points count
float GetGestureHoldDuration(void); // Get gesture hold time in milliseconds
Vector2 GetGestureDragVector(void); // Get gesture drag vector
float GetGestureDragAngle(void); // Get gesture drag angle
@ -194,7 +204,7 @@ typedef struct {
Vector2 downDragPosition; // Touch drag position
Vector2 moveDownPositionA; // First touch down position on move
Vector2 moveDownPositionB; // Second touch down position on move
int tapCounter; // TAP counter (one tap implies TOUCH_DOWN and TOUCH_UP actions)
int tapCounter; // TAP counter (one tap implies TOUCH_ACTION_DOWN and TOUCH_ACTION_UP actions)
} Touch;
struct {
bool resetRequired; // HOLD reset to get first touch point again
@ -222,19 +232,16 @@ typedef struct {
//----------------------------------------------------------------------------------
static GesturesData GESTURES = {
.Touch.firstId = -1,
.current = GESTURE_NONE, // No current gesture detected
.current = GESTURE_NONE, // No current gesture detected
.enabledFlags = 0b0000001111111111 // All gestures supported by default
};
//----------------------------------------------------------------------------------
// Module specific Functions Declaration
//----------------------------------------------------------------------------------
#if defined(GESTURES_STANDALONE)
// Some required math functions provided by raymath.h
static float Vector2Angle(Vector2 initialPosition, Vector2 finalPosition);
static float Vector2Distance(Vector2 v1, Vector2 v2);
#endif
static double GetCurrentTime(void);
static float rgVector2Angle(Vector2 initialPosition, Vector2 finalPosition);
static float rgVector2Distance(Vector2 v1, Vector2 v2);
static double rgGetCurrentTime(void);
//----------------------------------------------------------------------------------
// Module Functions Definition
@ -259,14 +266,14 @@ void ProcessGestureEvent(GestureEvent event)
// Reset required variables
GESTURES.Touch.pointCount = event.pointCount; // Required on UpdateGestures()
if (GESTURES.Touch.pointCount < 2)
if (GESTURES.Touch.pointCount == 1) // One touch point
{
if (event.touchAction == TOUCH_DOWN)
if (event.touchAction == TOUCH_ACTION_DOWN)
{
GESTURES.Touch.tapCounter++; // Tap counter
// Detect GESTURE_DOUBLE_TAP
if ((GESTURES.current == GESTURE_NONE) && (GESTURES.Touch.tapCounter >= 2) && ((GetCurrentTime() - GESTURES.Touch.eventTime) < TAP_TIMEOUT) && (Vector2Distance(GESTURES.Touch.downPositionA, event.position[0]) < DOUBLETAP_RANGE))
if ((GESTURES.current == GESTURE_NONE) && (GESTURES.Touch.tapCounter >= 2) && ((rgGetCurrentTime() - GESTURES.Touch.eventTime) < TAP_TIMEOUT) && (rgVector2Distance(GESTURES.Touch.downPositionA, event.position[0]) < DOUBLETAP_RANGE))
{
GESTURES.current = GESTURE_DOUBLETAP;
GESTURES.Touch.tapCounter = 0;
@ -281,19 +288,19 @@ void ProcessGestureEvent(GestureEvent event)
GESTURES.Touch.downDragPosition = event.position[0];
GESTURES.Touch.upPosition = GESTURES.Touch.downPositionA;
GESTURES.Touch.eventTime = GetCurrentTime();
GESTURES.Touch.eventTime = rgGetCurrentTime();
GESTURES.Touch.firstId = event.pointId[0];
GESTURES.Drag.vector = (Vector2){ 0.0f, 0.0f };
}
else if (event.touchAction == TOUCH_UP)
else if (event.touchAction == TOUCH_ACTION_UP)
{
if (GESTURES.current == GESTURE_DRAG) GESTURES.Touch.upPosition = event.position[0];
// NOTE: GESTURES.Drag.intensity dependend on the resolution of the screen
GESTURES.Drag.distance = Vector2Distance(GESTURES.Touch.downPositionA, GESTURES.Touch.upPosition);
GESTURES.Drag.intensity = GESTURES.Drag.distance/(float)((GetCurrentTime() - GESTURES.Swipe.timeDuration));
GESTURES.Drag.distance = rgVector2Distance(GESTURES.Touch.downPositionA, GESTURES.Touch.upPosition);
GESTURES.Drag.intensity = GESTURES.Drag.distance/(float)((rgGetCurrentTime() - GESTURES.Swipe.timeDuration));
GESTURES.Swipe.start = false;
@ -301,7 +308,7 @@ void ProcessGestureEvent(GestureEvent event)
if ((GESTURES.Drag.intensity > FORCE_TO_SWIPE) && (GESTURES.Touch.firstId == event.pointId[0]))
{
// NOTE: Angle should be inverted in Y
GESTURES.Drag.angle = 360.0f - Vector2Angle(GESTURES.Touch.downPositionA, GESTURES.Touch.upPosition);
GESTURES.Drag.angle = 360.0f - rgVector2Angle(GESTURES.Touch.downPositionA, GESTURES.Touch.upPosition);
if ((GESTURES.Drag.angle < 30) || (GESTURES.Drag.angle > 330)) GESTURES.current = GESTURE_SWIPE_RIGHT; // Right
else if ((GESTURES.Drag.angle > 30) && (GESTURES.Drag.angle < 120)) GESTURES.current = GESTURE_SWIPE_UP; // Up
@ -321,13 +328,13 @@ void ProcessGestureEvent(GestureEvent event)
GESTURES.Touch.downDragPosition = (Vector2){ 0.0f, 0.0f };
GESTURES.Touch.pointCount = 0;
}
else if (event.touchAction == TOUCH_MOVE)
else if (event.touchAction == TOUCH_ACTION_MOVE)
{
if (GESTURES.current == GESTURE_DRAG) GESTURES.Touch.eventTime = GetCurrentTime();
if (GESTURES.current == GESTURE_DRAG) GESTURES.Touch.eventTime = rgGetCurrentTime();
if (!GESTURES.Swipe.start)
{
GESTURES.Swipe.timeDuration = GetCurrentTime();
GESTURES.Swipe.timeDuration = rgGetCurrentTime();
GESTURES.Swipe.start = true;
}
@ -340,9 +347,9 @@ void ProcessGestureEvent(GestureEvent event)
GESTURES.Hold.resetRequired = false;
// Detect GESTURE_DRAG
if (Vector2Distance(GESTURES.Touch.downPositionA, GESTURES.Touch.moveDownPositionA) >= MINIMUM_DRAG)
if (rgVector2Distance(GESTURES.Touch.downPositionA, GESTURES.Touch.moveDownPositionA) >= MINIMUM_DRAG)
{
GESTURES.Touch.eventTime = GetCurrentTime();
GESTURES.Touch.eventTime = rgGetCurrentTime();
GESTURES.current = GESTURE_DRAG;
}
}
@ -351,24 +358,24 @@ void ProcessGestureEvent(GestureEvent event)
GESTURES.Drag.vector.y = GESTURES.Touch.moveDownPositionA.y - GESTURES.Touch.downDragPosition.y;
}
}
else // Two touch points
else if (GESTURES.Touch.pointCount == 2) // Two touch points
{
if (event.touchAction == TOUCH_DOWN)
if (event.touchAction == TOUCH_ACTION_DOWN)
{
GESTURES.Touch.downPositionA = event.position[0];
GESTURES.Touch.downPositionB = event.position[1];
//GESTURES.Pinch.distance = Vector2Distance(GESTURES.Touch.downPositionA, GESTURES.Touch.downPositionB);
//GESTURES.Pinch.distance = rgVector2Distance(GESTURES.Touch.downPositionA, GESTURES.Touch.downPositionB);
GESTURES.Pinch.vector.x = GESTURES.Touch.downPositionB.x - GESTURES.Touch.downPositionA.x;
GESTURES.Pinch.vector.y = GESTURES.Touch.downPositionB.y - GESTURES.Touch.downPositionA.y;
GESTURES.current = GESTURE_HOLD;
GESTURES.Hold.timeDuration = GetCurrentTime();
GESTURES.Hold.timeDuration = rgGetCurrentTime();
}
else if (event.touchAction == TOUCH_MOVE)
else if (event.touchAction == TOUCH_ACTION_MOVE)
{
GESTURES.Pinch.distance = Vector2Distance(GESTURES.Touch.moveDownPositionA, GESTURES.Touch.moveDownPositionB);
GESTURES.Pinch.distance = rgVector2Distance(GESTURES.Touch.moveDownPositionA, GESTURES.Touch.moveDownPositionB);
GESTURES.Touch.downPositionA = GESTURES.Touch.moveDownPositionA;
GESTURES.Touch.downPositionB = GESTURES.Touch.moveDownPositionB;
@ -379,21 +386,21 @@ void ProcessGestureEvent(GestureEvent event)
GESTURES.Pinch.vector.x = GESTURES.Touch.moveDownPositionB.x - GESTURES.Touch.moveDownPositionA.x;
GESTURES.Pinch.vector.y = GESTURES.Touch.moveDownPositionB.y - GESTURES.Touch.moveDownPositionA.y;
if ((Vector2Distance(GESTURES.Touch.downPositionA, GESTURES.Touch.moveDownPositionA) >= MINIMUM_PINCH) || (Vector2Distance(GESTURES.Touch.downPositionB, GESTURES.Touch.moveDownPositionB) >= MINIMUM_PINCH))
if ((rgVector2Distance(GESTURES.Touch.downPositionA, GESTURES.Touch.moveDownPositionA) >= MINIMUM_PINCH) || (rgVector2Distance(GESTURES.Touch.downPositionB, GESTURES.Touch.moveDownPositionB) >= MINIMUM_PINCH))
{
if ((Vector2Distance(GESTURES.Touch.moveDownPositionA, GESTURES.Touch.moveDownPositionB) - GESTURES.Pinch.distance) < 0) GESTURES.current = GESTURE_PINCH_IN;
if ((rgVector2Distance(GESTURES.Touch.moveDownPositionA, GESTURES.Touch.moveDownPositionB) - GESTURES.Pinch.distance) < 0) GESTURES.current = GESTURE_PINCH_IN;
else GESTURES.current = GESTURE_PINCH_OUT;
}
else
{
GESTURES.current = GESTURE_HOLD;
GESTURES.Hold.timeDuration = GetCurrentTime();
GESTURES.Hold.timeDuration = rgGetCurrentTime();
}
// NOTE: Angle should be inverted in Y
GESTURES.Pinch.angle = 360.0f - Vector2Angle(GESTURES.Touch.moveDownPositionA, GESTURES.Touch.moveDownPositionB);
GESTURES.Pinch.angle = 360.0f - rgVector2Angle(GESTURES.Touch.moveDownPositionA, GESTURES.Touch.moveDownPositionB);
}
else if (event.touchAction == TOUCH_UP)
else if (event.touchAction == TOUCH_ACTION_UP)
{
GESTURES.Pinch.distance = 0.0f;
GESTURES.Pinch.angle = 0.0f;
@ -403,6 +410,10 @@ void ProcessGestureEvent(GestureEvent event)
GESTURES.current = GESTURE_NONE;
}
}
else if (GESTURES.Touch.pointCount > 2) // More than two touch points
{
// TODO.
}
}
// Update gestures detected (must be called every frame)
@ -414,13 +425,13 @@ void UpdateGestures(void)
if (((GESTURES.current == GESTURE_TAP) || (GESTURES.current == GESTURE_DOUBLETAP)) && (GESTURES.Touch.pointCount < 2))
{
GESTURES.current = GESTURE_HOLD;
GESTURES.Hold.timeDuration = GetCurrentTime();
GESTURES.Hold.timeDuration = rgGetCurrentTime();
}
if (((GetCurrentTime() - GESTURES.Touch.eventTime) > TAP_TIMEOUT) && (GESTURES.current == GESTURE_DRAG) && (GESTURES.Touch.pointCount < 2))
if (((rgGetCurrentTime() - GESTURES.Touch.eventTime) > TAP_TIMEOUT) && (GESTURES.current == GESTURE_DRAG) && (GESTURES.Touch.pointCount < 2))
{
GESTURES.current = GESTURE_HOLD;
GESTURES.Hold.timeDuration = GetCurrentTime();
GESTURES.Hold.timeDuration = rgGetCurrentTime();
GESTURES.Hold.resetRequired = true;
}
@ -445,7 +456,7 @@ float GetGestureHoldDuration(void)
double time = 0.0;
if (GESTURES.current == GESTURE_HOLD) time = GetCurrentTime() - GESTURES.Hold.timeDuration;
if (GESTURES.current == GESTURE_HOLD) time = rgGetCurrentTime() - GESTURES.Hold.timeDuration;
return (float)time;
}
@ -453,7 +464,7 @@ float GetGestureHoldDuration(void)
// Get drag vector (between initial touch point to current)
Vector2 GetGestureDragVector(void)
{
// NOTE: drag vector is calculated on one touch points TOUCH_MOVE
// NOTE: drag vector is calculated on one touch points TOUCH_ACTION_MOVE
return GESTURES.Drag.vector;
}
@ -462,7 +473,7 @@ Vector2 GetGestureDragVector(void)
// NOTE: Angle in degrees, horizontal-right is 0, counterclock-wise
float GetGestureDragAngle(void)
{
// NOTE: drag angle is calculated on one touch points TOUCH_UP
// NOTE: drag angle is calculated on one touch points TOUCH_ACTION_UP
return GESTURES.Drag.angle;
}
@ -471,7 +482,7 @@ float GetGestureDragAngle(void)
Vector2 GetGesturePinchVector(void)
{
// NOTE: The position values used for GESTURES.Pinch.distance are not modified like the position values of [core.c]-->GetTouchPosition(int index)
// NOTE: pinch distance is calculated on two touch points TOUCH_MOVE
// NOTE: pinch distance is calculated on two touch points TOUCH_ACTION_MOVE
return GESTURES.Pinch.vector;
}
@ -480,7 +491,7 @@ Vector2 GetGesturePinchVector(void)
// NOTE: Angle in degrees, horizontal-right is 0, counterclock-wise
float GetGesturePinchAngle(void)
{
// NOTE: pinch angle is calculated on two touch points TOUCH_MOVE
// NOTE: pinch angle is calculated on two touch points TOUCH_ACTION_MOVE
return GESTURES.Pinch.angle;
}
@ -488,9 +499,8 @@ float GetGesturePinchAngle(void)
//----------------------------------------------------------------------------------
// Module specific Functions Definition
//----------------------------------------------------------------------------------
#if defined(GESTURES_STANDALONE)
// Get angle from two-points vector with X-axis
static float Vector2Angle(Vector2 v1, Vector2 v2)
static float rgVector2Angle(Vector2 v1, Vector2 v2)
{
float angle = atan2f(v2.y - v1.y, v2.x - v1.x)*(180.0f/PI);
@ -500,7 +510,7 @@ static float Vector2Angle(Vector2 v1, Vector2 v2)
}
// Calculate distance between two Vector2
static float Vector2Distance(Vector2 v1, Vector2 v2)
static float rgVector2Distance(Vector2 v1, Vector2 v2)
{
float result;
@ -511,10 +521,9 @@ static float Vector2Distance(Vector2 v1, Vector2 v2)
return result;
}
#endif
// Time measure returned are milliseconds
static double GetCurrentTime(void)
static double rgGetCurrentTime(void)
{
double time = 0;