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Reviewed Android inputs and gestures system

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Corrected Android processing for some inputs (BACK button, VOLUME
buttons)
Redesigned Gestures system (some work still required)
SetEnabledGestures() - Only support desired gestures (requires some
review)
This commit is contained in:
raysan5 2016-01-03 13:01:21 +01:00
parent f269fb46ea
commit d32feaa668
4 changed files with 297 additions and 306 deletions
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230
src/core.c
View File

@ -66,7 +66,7 @@
#include <jni.h> // Java native interface
#include <android/sensor.h> // Android sensors functions
#include <android/window.h> // Defines AWINDOW_FLAG_FULLSCREEN and others
//#include <android_native_app_glue.h> // Defines basic app state struct and manages activity
#include <android_native_app_glue.h> // Defines basic app state struct and manages activity
#include <EGL/egl.h> // Khronos EGL library - Native platform display device control functions
#include <GLES2/gl2.h> // Khronos OpenGL ES 2.0 library
@ -103,7 +103,6 @@
//----------------------------------------------------------------------------------
// Defines and Macros
//----------------------------------------------------------------------------------
#define MAX_TOUCH_POINTS 256
//----------------------------------------------------------------------------------
// Types and Structures Definition
@ -121,7 +120,8 @@ static struct android_app *app; // Android activity
static struct android_poll_source *source; // Android events polling source
static int ident, events;
static bool windowReady = false; // Used to detect display initialization
static bool appEnabled = true; // Used to detec if app is active
static bool contextRebindRequired = false; // Used to know context rebind required
#elif defined(PLATFORM_RPI)
static EGL_DISPMANX_WINDOW_T nativeWindow; // Native window (graphic device)
@ -149,6 +149,7 @@ static int gamepadStream = -1; // Gamepad device file descripto
static EGLDisplay display; // Native display device (physical screen connection)
static EGLSurface surface; // Surface to draw on, framebuffers (connected to context)
static EGLContext context; // Graphic context, mode in which drawing can be done
static EGLConfig config; // Graphic config
static uint64_t baseTime; // Base time measure for hi-res timer
static bool windowShouldClose = false; // Flag to set window for closing
#endif
@ -254,10 +255,12 @@ static void TakeScreenshot(void);
#if defined(PLATFORM_ANDROID)
static void AndroidCommandCallback(struct android_app *app, int32_t cmd); // Process Android activity lifecycle commands
static int32_t AndroidInputCallback(struct android_app *app, AInputEvent *event); // Process Android inputs
#endif
#if defined(PLATFORM_WEB)
static EM_BOOL EmscriptenFullscreenChangeCallback(int eventType, const EmscriptenFullscreenChangeEvent *e, void *userData);
static EM_BOOL EmscriptenInputCallback(int eventType, const EmscriptenTouchEvent *touchEvent, void *userData);
#endif
//----------------------------------------------------------------------------------
@ -293,9 +296,15 @@ void InitWindow(int width, int height, const char *title)
#endif
#if defined(PLATFORM_WEB)
InitGesturesSystem();
emscripten_set_fullscreenchange_callback(0, 0, 1, EmscriptenFullscreenChangeCallback);
// NOTE: Some code examples
//emscripten_set_touchstart_callback(0, NULL, 1, Emscripten_HandleTouch);
//emscripten_set_touchend_callback("#canvas", data, 0, Emscripten_HandleTouch);
emscripten_set_touchstart_callback("#canvas", NULL, 1, EmscriptenInputCallback);
emscripten_set_touchend_callback("#canvas", NULL, 1, EmscriptenInputCallback);
emscripten_set_touchmove_callback("#canvas", NULL, 1, EmscriptenInputCallback);
emscripten_set_touchcancel_callback("#canvas", NULL, 1, EmscriptenInputCallback);
#endif
mousePosition.x = screenWidth/2;
@ -350,24 +359,23 @@ void InitWindow(int width, int height, struct android_app *state)
//state->userData = &engine;
app->onAppCmd = AndroidCommandCallback;
InitAssetManager(app->activity->assetManager);
app->onInputEvent = AndroidInputCallback;
InitGesturesSystem(app);
InitAssetManager(app->activity->assetManager);
TraceLog(INFO, "Android app initialized successfully");
// Wait for window to be initialized (display and context)
while (!windowReady)
{
// Wait for window to be initialized (display and context)
// Process events loop
while ((ident = ALooper_pollAll(0, NULL, &events,(void**)&source)) >= 0)
{
// Process this event
if (source != NULL) source->process(app, source);
// Check if we are exiting
if (app->destroyRequested != 0) windowShouldClose = true;
// NOTE: Never close window, native activity is controlled by the system!
//if (app->destroyRequested != 0) windowShouldClose = true;
}
}
}
@ -1221,7 +1229,6 @@ static void InitDisplay(int width, int height)
};
EGLint numConfigs;
EGLConfig config;
// Get an EGL display connection
display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
@ -1455,30 +1462,62 @@ static void AndroidCommandCallback(struct android_app *app, int32_t cmd)
if (app->window != NULL)
{
// Init device display (monitor, LCD, ...)
InitDisplay(screenWidth, screenHeight);
// Init OpenGL graphics
InitGraphics();
// Load default font for convenience
// NOTE: External function (defined in module: text)
LoadDefaultFont();
// Init hi-res timer
InitTimer();
// raylib logo appearing animation (if enabled)
if (showLogo)
if (contextRebindRequired)
{
SetTargetFPS(60);
LogoAnimation();
// Reset screen scaling to full display size
EGLint displayFormat;
eglGetConfigAttrib(display, config, EGL_NATIVE_VISUAL_ID, &displayFormat);
ANativeWindow_setBuffersGeometry(app->window, renderWidth, renderHeight, displayFormat);
// Recreate display surface and re-attach OpenGL context
surface = eglCreateWindowSurface(display, config, app->window, NULL);
eglMakeCurrent(display, surface, surface, context);
contextRebindRequired = false;
}
else
{
// Init device display (monitor, LCD, ...)
InitDisplay(screenWidth, screenHeight);
// Init OpenGL graphics
InitGraphics();
// Load default font for convenience
// NOTE: External function (defined in module: text)
LoadDefaultFont();
// TODO: GPU assets reload in case of lost focus (lost context)
// NOTE: This problem has been solved just unbinding and rebinding context from display
/*
if (assetsReloadRequired)
{
for (int i = 0; i < assetsCount; i++)
{
// TODO: Unload old asset if required
// Load texture again to pointed texture
(*textureAsset + i) = LoadTexture(assetPath[i]);
}
}
*/
// Init hi-res timer
InitTimer();
// raylib logo appearing animation (if enabled)
if (showLogo)
{
SetTargetFPS(60); // Not required on Android
LogoAnimation();
}
}
}
} break;
case APP_CMD_GAINED_FOCUS:
{
TraceLog(INFO, "APP_CMD_GAINED_FOCUS");
appEnabled = true;
//ResumeMusicStream();
} break;
case APP_CMD_PAUSE:
@ -1489,11 +1528,18 @@ static void AndroidCommandCallback(struct android_app *app, int32_t cmd)
{
//DrawFrame();
TraceLog(INFO, "APP_CMD_LOST_FOCUS");
appEnabled = false;
//PauseMusicStream();
} break;
case APP_CMD_TERM_WINDOW:
{
// TODO: Do display destruction here? -> Yes but only display, don't free buffers!
// Dettach OpenGL context and destroy display surface
// NOTE 1: Detaching context before destroying display surface avoids losing our resources (textures, shaders, VBOs...)
// NOTE 2: In some cases (too many context loaded), OS could unload context automatically... :(
eglMakeCurrent(display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
eglDestroySurface(display, surface);
contextRebindRequired = true;
TraceLog(INFO, "APP_CMD_TERM_WINDOW");
} break;
@ -1524,6 +1570,61 @@ static void AndroidCommandCallback(struct android_app *app, int32_t cmd)
default: break;
}
}
// Android: Get input events
static int32_t AndroidInputCallback(struct android_app *app, AInputEvent *event)
{
//http://developer.android.com/ndk/reference/index.html
int type = AInputEvent_getType(event);
if (type == AINPUT_EVENT_TYPE_MOTION)
{
touchPosition.x = AMotionEvent_getX(event, 0);
touchPosition.y = AMotionEvent_getY(event, 0);
}
else if (type == AINPUT_EVENT_TYPE_KEY)
{
int32_t keycode = AKeyEvent_getKeyCode(event);
//int32_t AKeyEvent_getMetaState(event);
//if (keycode == AKEYCODE_HOME) { }
//if (keycode == AKEYCODE_POWER) { }
if (keycode == AKEYCODE_BACK)
{
// Eat BACK_BUTTON, just do nothing... and don't let to be handled by OS!
return 1;
}
else if ((keycode == AKEYCODE_VOLUME_UP) || (keycode == AKEYCODE_VOLUME_DOWN))
{
// Set default OS behaviour
return 0;
}
}
int32_t action = AMotionEvent_getAction(event);
unsigned int flags = action & AMOTION_EVENT_ACTION_MASK;
GestureEvent gestureEvent;
// Register touch actions
if (flags == AMOTION_EVENT_ACTION_DOWN) gestureEvent.touchAction = TOUCH_DOWN;
else if (flags == AMOTION_EVENT_ACTION_UP) gestureEvent.touchAction = TOUCH_UP;
else if (flags == AMOTION_EVENT_ACTION_MOVE) gestureEvent.touchAction = TOUCH_MOVE;
// Register touch points count
gestureEvent.pointCount = AMotionEvent_getPointerCount(event);
// Register touch points position
// NOTE: Only two points registered
gestureEvent.position[0] = (Vector2){ AMotionEvent_getX(event, 0), AMotionEvent_getY(event, 0) };
gestureEvent.position[1] = (Vector2){ AMotionEvent_getX(event, 1), AMotionEvent_getY(event, 1) };
// Gesture data is sent to gestures system for processing
ProcessGestureEvent(gestureEvent);
return 0; // return 1;
}
#endif
#if defined(PLATFORM_DESKTOP) || defined(PLATFORM_RPI)
@ -1613,9 +1714,8 @@ static bool GetMouseButtonStatus(int button)
static void PollInputEvents(void)
{
#if defined(PLATFORM_ANDROID) || defined(PLATFORM_WEB)
// Touch events reading (requires gestures module)
touchPosition = GetRawTouchPosition();
// TODO: Remove this requirement...
UpdateGestures();
#endif
@ -1645,23 +1745,18 @@ static void PollInputEvents(void)
glfwPollEvents(); // Register keyboard/mouse events... and window events!
#elif defined(PLATFORM_ANDROID)
// TODO: Check virtual keyboard (?)
// Poll Events (registered events)
// TODO: Enable/disable activityMinimized to block activity if minimized
//while ((ident = ALooper_pollAll(activityMinimized ? 0 : -1, NULL, &events,(void**)&source)) >= 0)
while ((ident = ALooper_pollAll(0, NULL, &events, (void**)&source)) >= 0)
// NOTE: Activity is paused if not enabled (appEnabled)
while ((ident = ALooper_pollAll(appEnabled ? 0 : -1, NULL, &events,(void**)&source)) >= 0)
{
// Process this event
if (source != NULL) source->process(app, source);
// Check if we are exiting
// NOTE: Never close window, native activity is controlled by the system!
if (app->destroyRequested != 0)
{
// NOTE: Never close window, native activity is controlled by the system!
//TraceLog(INFO, "Closing Window...");
//windowShouldClose = true;
//ANativeActivity_finish(app->activity);
}
}
@ -2035,6 +2130,59 @@ static EM_BOOL EmscriptenFullscreenChangeCallback(int eventType, const Emscripte
return 0;
}
// Web: Get input events
static EM_BOOL EmscriptenInputCallback(int eventType, const EmscriptenTouchEvent *touchEvent, void *userData)
{
/*
for (int i = 0; i < touchEvent->numTouches; i++)
{
long x, y, id;
if (!touchEvent->touches[i].isChanged) continue;
id = touchEvent->touches[i].identifier;
x = touchEvent->touches[i].canvasX;
y = touchEvent->touches[i].canvasY;
}
printf("%s, numTouches: %d %s%s%s%s\n", emscripten_event_type_to_string(eventType), event->numTouches,
event->ctrlKey ? " CTRL" : "", event->shiftKey ? " SHIFT" : "", event->altKey ? " ALT" : "", event->metaKey ? " META" : "");
for(int i = 0; i < event->numTouches; ++i)
{
const EmscriptenTouchPoint *t = &event->touches[i];
printf(" %ld: screen: (%ld,%ld), client: (%ld,%ld), page: (%ld,%ld), isChanged: %d, onTarget: %d, canvas: (%ld, %ld)\n",
t->identifier, t->screenX, t->screenY, t->clientX, t->clientY, t->pageX, t->pageY, t->isChanged, t->onTarget, t->canvasX, t->canvasY);
}
*/
GestureEvent gestureEvent;
// Register touch actions
if (eventType == EMSCRIPTEN_EVENT_TOUCHSTART) gestureEvent.touchAction = TOUCH_DOWN;
else if (eventType == EMSCRIPTEN_EVENT_TOUCHEND) gestureEvent.touchAction = TOUCH_UP;
else if (eventType == EMSCRIPTEN_EVENT_TOUCHMOVE) gestureEvent.touchAction = TOUCH_MOVE;
// Register touch points count
gestureEvent.pointCount = touchEvent->numTouches;
// Register touch points position
// NOTE: Only two points registered
// TODO: Touch data should be scaled accordingly!
//gestureEvent.position[0] = (Vector2){ touchEvent->touches[0].canvasX, touchEvent->touches[0].canvasY };
//gestureEvent.position[1] = (Vector2){ touchEvent->touches[1].canvasX, touchEvent->touches[1].canvasY };
gestureEvent.position[0] = (Vector2){ touchEvent->touches[0].targetX, touchEvent->touches[0].targetY };
gestureEvent.position[1] = (Vector2){ touchEvent->touches[1].targetX, touchEvent->touches[1].targetY };
touchPosition = gestureEvent.position[0];
// Gesture data is sent to gestures system for processing
ProcessGestureEvent(gestureEvent); // Process obtained gestures data
return 1;
}
#endif
// Plays raylib logo appearing animation

332
src/gestures.c
View File

@ -42,23 +42,12 @@
#include <time.h> // Used for clock functions
#endif
#if defined(PLATFORM_ANDROID)
#include <jni.h> // Java native interface
#include <android/sensor.h> // Android sensors functions
#include <android/window.h> // Defines AWINDOW_FLAG_FULLSCREEN and others
#endif
#if defined(PLATFORM_WEB)
#include <emscripten/emscripten.h>
#include <emscripten/html5.h>
#endif
//----------------------------------------------------------------------------------
// Defines and Macros
//----------------------------------------------------------------------------------
#define FORCE_TO_SWIPE 20
#define TAP_TIMEOUT 300
#define MAX_TOUCH_POINTS 4
//#define MAX_TOUCH_POINTS 4
//----------------------------------------------------------------------------------
// Types and Structures Definition
@ -69,20 +58,6 @@ typedef enum {
TYPE_DUAL_INPUT
} GestureType;
typedef enum {
UP,
DOWN,
MOVE
} ActionType;
typedef struct {
ActionType action;
int pointCount;
int pointerId[MAX_TOUCH_POINTS];
Vector2 position[MAX_TOUCH_POINTS];
} GestureEvent;
//----------------------------------------------------------------------------------
// Global Variables Definition
//----------------------------------------------------------------------------------
@ -119,133 +94,24 @@ static float pinchDelta = 0; // Pinch delta displacement
static int previousGesture = GESTURE_NONE;
static int currentGesture = GESTURE_NONE;
static unsigned int enabledGestures = 0; // TODO: Currently not in use...
static Vector2 rawTouchPosition;
// Enabled gestures flags, all gestures enabled by default
static unsigned int enabledGestures = 0b0000011111111111;
//----------------------------------------------------------------------------------
// Module specific Functions Declaration
//----------------------------------------------------------------------------------
static void ProcessMotionEvent(GestureEvent event);
static void InitPinchGesture(Vector2 posA, Vector2 posB);
static float CalculateAngle(Vector2 initialPosition, Vector2 actualPosition, float magnitude);
static float VectorDistance(Vector2 v1, Vector2 v2);
static float VectorDotProduct(Vector2 v1, Vector2 v2);
static double GetCurrentTime();
#if defined(PLATFORM_WEB)
static EM_BOOL EmscriptenInputCallback(int eventType, const EmscriptenTouchEvent *touchEvent, void *userData);
#endif
#if defined(PLATFORM_ANDROID)
static int32_t AndroidInputCallback(struct android_app *app, AInputEvent *event);
#endif
//----------------------------------------------------------------------------------
// Module Functions Definition
//----------------------------------------------------------------------------------
// Get touch position (could require further processing depending on display size)
Vector2 GetRawTouchPosition(void)
{
return rawTouchPosition;
}
// Check if a gesture have been detected
bool IsGestureDetected(void)
{
if (currentGesture != GESTURE_NONE) return true;
else return false;
}
// Check gesture type
int GetGestureType(void)
{
return currentGesture;
}
void SetGesturesEnabled(unsigned int gestureFlags)
{
enabledGestures = gestureFlags;
}
// Get drag intensity (pixels per frame)
float GetGestureDragIntensity(void)
{
return intensity;
}
// Get drag angle
// NOTE: Angle in degrees, horizontal-right is 0, counterclock-wise
float GetGestureDragAngle(void)
{
return angle;
}
// Get drag vector (between initial and final position)
Vector2 GetGestureDragVector(void)
{
return dragVector;
}
// Hold time measured in frames
int GetGestureHoldDuration(void)
{
return 0;
}
// Get magnitude between two pinch points
float GetGesturePinchDelta(void)
{
return pinchDelta;
}
// Get angle beween two pinch points
// NOTE: Angle in degrees, horizontal-right is 0, counterclock-wise
float GetGesturePinchAngle(void)
{
return 0;
}
#if defined(PLATFORM_WEB)
// Init gestures system (web)
void InitGesturesSystem(void)
{
// Init gestures system web (emscripten)
// NOTE: Some code examples
//emscripten_set_touchstart_callback(0, NULL, 1, Emscripten_HandleTouch);
//emscripten_set_touchend_callback("#canvas", data, 0, Emscripten_HandleTouch);
emscripten_set_touchstart_callback("#canvas", NULL, 1, EmscriptenInputCallback);
emscripten_set_touchend_callback("#canvas", NULL, 1, EmscriptenInputCallback);
emscripten_set_touchmove_callback("#canvas", NULL, 1, EmscriptenInputCallback);
emscripten_set_touchcancel_callback("#canvas", NULL, 1, EmscriptenInputCallback);
}
#elif defined(PLATFORM_ANDROID)
// Init gestures system (android)
void InitGesturesSystem(struct android_app *app)
{
app->onInputEvent = AndroidInputCallback;
// TODO: Receive frameBuffer data: displayWidth/displayHeight, renderWidth/renderHeight, screenWidth/screenHeight
}
#endif
// Update gestures detected (must be called every frame)
void UpdateGestures(void)
{
// NOTE: Gestures are processed through system callbacks on touch events
if ((previousGesture == GESTURE_TAP) && (currentGesture == GESTURE_TAP)) currentGesture = GESTURE_HOLD;
else if (currentGesture != GESTURE_HOLD) currentGesture = GESTURE_NONE;
}
//----------------------------------------------------------------------------------
// Module specific Functions Definition
//----------------------------------------------------------------------------------
static void ProcessMotionEvent(GestureEvent event)
// Process gesture event and translate it into gestures
void ProcessGestureEvent(GestureEvent event)
{
// Resets
dragVector = (Vector2){ 0, 0 };
@ -257,7 +123,7 @@ static void ProcessMotionEvent(GestureEvent event)
{
case TYPE_MOTIONLESS: // Detect TAP, DOUBLE_TAP and HOLD events
{
if (event.action == DOWN)
if (event.touchAction == TOUCH_DOWN)
{
if (event.pointCount > 1) InitPinchGesture(event.position[0], event.position[1]);
else
@ -279,7 +145,7 @@ static void ProcessMotionEvent(GestureEvent event)
else currentGesture = GESTURE_TAP;
}
}
else if (event.action == UP)
else if (event.touchAction == TOUCH_UP)
{
currentGesture = GESTURE_NONE;
@ -297,7 +163,7 @@ static void ProcessMotionEvent(GestureEvent event)
eventTime = GetCurrentTime();
}
// Begin dragging
else if (event.action == MOVE)
else if (event.touchAction == TOUCH_MOVE)
{
if (event.pointCount > 1) InitPinchGesture(event.position[0], event.position[1]);
else
@ -316,7 +182,7 @@ static void ProcessMotionEvent(GestureEvent event)
case TYPE_DRAG: // Detect DRAG and SWIPE events
{
// end of the drag
if (event.action == UP)
if (event.touchAction == TOUCH_UP)
{
// Return Swipe if we have enough sensitivity
if (intensity > FORCE_TO_SWIPE)
@ -334,14 +200,13 @@ static void ProcessMotionEvent(GestureEvent event)
gestureType = TYPE_MOTIONLESS;
}
// Update while we are dragging
else if (event.action == MOVE)
else if (event.touchAction == TOUCH_MOVE)
{
if (event.pointCount > 1) InitPinchGesture(event.position[0], event.position[1]);
else
{
lastDragPosition = endDragPosition;
endDragPosition = rawTouchPosition;
endDragPosition = event.position[0];
//endDragPosition.x = AMotionEvent_getX(event, 0);
//endDragPosition.y = AMotionEvent_getY(event, 0);
@ -359,7 +224,7 @@ static void ProcessMotionEvent(GestureEvent event)
} break;
case TYPE_DUAL_INPUT:
{
if (event.action == UP)
if (event.touchAction == TOUCH_UP)
{
if (event.pointCount == 1)
{
@ -368,7 +233,7 @@ static void ProcessMotionEvent(GestureEvent event)
}
gestureType = TYPE_MOTIONLESS;
}
else if (event.action == MOVE)
else if (event.touchAction == TOUCH_MOVE)
{
// Adapt the ending position of the inputs
firstEndPinchPosition = event.position[0];
@ -410,9 +275,78 @@ static void ProcessMotionEvent(GestureEvent event)
}
} break;
}
//--------------------------------------------------------------------
}
// Check if a gesture have been detected
bool IsGestureDetected(void)
{
if (currentGesture != GESTURE_NONE) return true;
else return false;
}
// Check gesture type
int GetGestureType(void)
{
// Get current gesture only if enabled
return (enabledGestures & currentGesture);
}
void SetGesturesEnabled(unsigned int gestureFlags)
{
enabledGestures = enabledGestures | gestureFlags;
}
// Get drag intensity (pixels per frame)
float GetGestureDragIntensity(void)
{
return intensity;
}
// Get drag angle
// NOTE: Angle in degrees, horizontal-right is 0, counterclock-wise
float GetGestureDragAngle(void)
{
return angle;
}
// Get drag vector (between initial and final position)
Vector2 GetGestureDragVector(void)
{
return dragVector;
}
// Hold time measured in frames
int GetGestureHoldDuration(void)
{
return 0;
}
// Get magnitude between two pinch points
float GetGesturePinchDelta(void)
{
return pinchDelta;
}
// Get angle beween two pinch points
// NOTE: Angle in degrees, horizontal-right is 0, counterclock-wise
float GetGesturePinchAngle(void)
{
return 0;
}
// Update gestures detected (must be called every frame)
void UpdateGestures(void)
{
// NOTE: Gestures are processed through system callbacks on touch events
if ((previousGesture == GESTURE_TAP) && (currentGesture == GESTURE_TAP)) currentGesture = GESTURE_HOLD;
else if (currentGesture != GESTURE_HOLD) currentGesture = GESTURE_NONE;
}
//----------------------------------------------------------------------------------
// Module specific Functions Definition
//----------------------------------------------------------------------------------
static float CalculateAngle(Vector2 initialPosition, Vector2 finalPosition, float magnitude)
{
float angle;
@ -520,103 +454,3 @@ static double GetCurrentTime()
return time;
}
#if defined(PLATFORM_ANDROID)
// Android: Get input events
static int32_t AndroidInputCallback(struct android_app *app, AInputEvent *event)
{
int type = AInputEvent_getType(event);
if (type == AINPUT_EVENT_TYPE_MOTION)
{
rawTouchPosition.x = AMotionEvent_getX(event, 0);
rawTouchPosition.y = AMotionEvent_getY(event, 0);
}
else if (type == AINPUT_EVENT_TYPE_KEY)
{
int32_t keycode = AKeyEvent_getKeyCode(event);
int32_t AKeyEvent_getMetaState(event);
// If we are in active mode, we eat the back button and move into pause mode.
// If we are already in pause mode, we allow the back button to be handled by the OS, which means we'll be shut down.
if ((keycode == AKEYCODE_BACK)) // && mActiveMode)
{
//setActiveMode(false);
//return 1;
}
}
int32_t action = AMotionEvent_getAction(event);
unsigned int flags = action & AMOTION_EVENT_ACTION_MASK;
GestureEvent gestureEvent;
// Action
if (flags == AMOTION_EVENT_ACTION_DOWN) gestureEvent.action = DOWN;
else if (flags == AMOTION_EVENT_ACTION_UP) gestureEvent.action = UP;
else if (flags == AMOTION_EVENT_ACTION_MOVE) gestureEvent.action = MOVE;
// Points
gestureEvent.pointCount = AMotionEvent_getPointerCount(event);
// Position
gestureEvent.position[0] = (Vector2){ AMotionEvent_getX(event, 0), AMotionEvent_getY(event, 0) };
gestureEvent.position[1] = (Vector2){ AMotionEvent_getX(event, 1), AMotionEvent_getY(event, 1) };
ProcessMotionEvent(gestureEvent);
return 0; // return 1;
}
#endif
#if defined(PLATFORM_WEB)
// Web: Get input events
static EM_BOOL EmscriptenInputCallback(int eventType, const EmscriptenTouchEvent *touchEvent, void *userData)
{
/*
for (int i = 0; i < touchEvent->numTouches; i++)
{
long x, y, id;
if (!touchEvent->touches[i].isChanged) continue;
id = touchEvent->touches[i].identifier;
x = touchEvent->touches[i].canvasX;
y = touchEvent->touches[i].canvasY;
}
printf("%s, numTouches: %d %s%s%s%s\n", emscripten_event_type_to_string(eventType), event->numTouches,
event->ctrlKey ? " CTRL" : "", event->shiftKey ? " SHIFT" : "", event->altKey ? " ALT" : "", event->metaKey ? " META" : "");
for(int i = 0; i < event->numTouches; ++i)
{
const EmscriptenTouchPoint *t = &event->touches[i];
printf(" %ld: screen: (%ld,%ld), client: (%ld,%ld), page: (%ld,%ld), isChanged: %d, onTarget: %d, canvas: (%ld, %ld)\n",
t->identifier, t->screenX, t->screenY, t->clientX, t->clientY, t->pageX, t->pageY, t->isChanged, t->onTarget, t->canvasX, t->canvasY);
}
*/
GestureEvent gestureEvent;
// Action
if (eventType == EMSCRIPTEN_EVENT_TOUCHSTART) gestureEvent.action = DOWN;
else if (eventType == EMSCRIPTEN_EVENT_TOUCHEND) gestureEvent.action = UP;
else if (eventType == EMSCRIPTEN_EVENT_TOUCHMOVE) gestureEvent.action = MOVE;
// Points
gestureEvent.pointCount = touchEvent->numTouches;
// Position
//gestureEvent.position[0] = (Vector2){ touchEvent->touches[0].canvasX, touchEvent->touches[0].canvasY };
//gestureEvent.position[1] = (Vector2){ touchEvent->touches[1].canvasX, touchEvent->touches[1].canvasY };
gestureEvent.position[0] = (Vector2){ touchEvent->touches[0].targetX, touchEvent->touches[0].targetY };
gestureEvent.position[1] = (Vector2){ touchEvent->touches[1].targetX, touchEvent->touches[1].targetY };
printf("EVENT DETECTED!\n");
rawTouchPosition = gestureEvent.position[0];
ProcessMotionEvent(gestureEvent);
return 1;
}
#endif

21
src/gestures.h
View File

@ -67,6 +67,17 @@ typedef enum {
GESTURE_PINCH_OUT = 1024
} Gestures;
typedef enum { TOUCH_UP, TOUCH_DOWN, TOUCH_MOVE } TouchAction;
// Gesture events
// NOTE: MAX_TOUCH_POINTS fixed to 4
typedef struct {
int touchAction;
int pointCount;
int pointerId[4];
Vector2 position[4];
} GestureEvent;
#ifdef __cplusplus
extern "C" { // Prevents name mangling of functions
#endif
@ -79,19 +90,11 @@ extern "C" { // Prevents name mangling of functions
//----------------------------------------------------------------------------------
// Module Functions Declaration
//----------------------------------------------------------------------------------
int GetTouchX(void); // Returns touch position X (relative to screen size)
int GetTouchY(void); // Returns touch position Y (relative to screen size)
Vector2 GetTouchPosition(void); // Returns touch position XY (relative to screen size)
#if defined(PLATFORM_WEB)
void InitGesturesSystem(void); // Init gestures system (web)
#elif defined(PLATFORM_ANDROID)
void InitGesturesSystem(struct android_app *app); // Init gestures system (android)
#endif
void UpdateGestures(void); // Update gestures detected (must be called every frame)
bool IsGestureDetected(void); // Check if a gesture have been detected
int GetGestureType(void); // Get latest detected gesture
void SetGesturesEnabled(unsigned int gestureFlags); // Enable a set of gestures using flags
void ProcessGestureEvent(GestureEvent event); // Process gesture event and translate it into gestures
float GetGestureDragIntensity(void); // Get gesture drag intensity
float GetGestureDragAngle(void); // Get gesture drag angle

20
src/raylib.h
View File

@ -70,7 +70,7 @@
#endif
#if defined(PLATFORM_ANDROID)
#include <android_native_app_glue.h> // Defines android_app struct
typedef struct android_app; // Define android_app struct (android_native_app_glue.h)
#endif
//----------------------------------------------------------------------------------
@ -432,6 +432,17 @@ typedef enum {
GESTURE_PINCH_OUT = 1024
} Gestures;
typedef enum { TOUCH_UP, TOUCH_DOWN, TOUCH_MOVE } TouchAction;
// Gesture events
// NOTE: MAX_TOUCH_POINTS fixed to 4
typedef struct {
int touchAction;
int pointCount;
int pointerId[4];
Vector2 position[4];
} GestureEvent;
// Camera system modes
typedef enum { CAMERA_CUSTOM = 0, CAMERA_FREE, CAMERA_ORBITAL, CAMERA_FIRST_PERSON, CAMERA_THIRD_PERSON } CameraMode;
@ -571,16 +582,11 @@ Vector2 GetTouchPosition(void); // Returns touch positio
//------------------------------------------------------------------------------------
// Gestures and Touch Handling Functions (Module: gestures)
//------------------------------------------------------------------------------------
Vector2 GetRawTouchPosition(void); // Get touch position (raw)
#if defined(PLATFORM_WEB)
void InitGesturesSystem(void); // Init gestures system (web)
#elif defined(PLATFORM_ANDROID)
void InitGesturesSystem(struct android_app *app); // Init gestures system (android)
#endif
void UpdateGestures(void); // Update gestures detected (must be called every frame)
bool IsGestureDetected(void); // Check if a gesture have been detected
int GetGestureType(void); // Get latest detected gesture
void SetGesturesEnabled(unsigned int gestureFlags); // Enable a set of gestures using flags
void ProcessGestureEvent(GestureEvent event); // Process gesture event and translate it into gestures
float GetGestureDragIntensity(void); // Get gesture drag intensity
float GetGestureDragAngle(void); // Get gesture drag angle