rayjs/examples/core/core_input_gestures.c

119 lines
5.2 KiB
C

/*******************************************************************************************
*
* raylib [core] example - Input Gestures Detection
*
* Example originally created with raylib 1.4, last time updated with raylib 4.2
*
* Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,
* BSD-like license that allows static linking with closed source software
*
* Copyright (c) 2016-2023 Ramon Santamaria (@raysan5)
*
********************************************************************************************/
#include "raylib.h"
#define MAX_GESTURE_STRINGS 20
//------------------------------------------------------------------------------------
// Program main entry point
//------------------------------------------------------------------------------------
int main(void)
{
// Initialization
//--------------------------------------------------------------------------------------
const int screenWidth = 800;
const int screenHeight = 450;
InitWindow(screenWidth, screenHeight, "raylib [core] example - input gestures");
Vector2 touchPosition = { 0, 0 };
Rectangle touchArea = { 220, 10, screenWidth - 230.0f, screenHeight - 20.0f };
int gesturesCount = 0;
char gestureStrings[MAX_GESTURE_STRINGS][32];
int currentGesture = GESTURE_NONE;
int lastGesture = GESTURE_NONE;
//SetGesturesEnabled(0b0000000000001001); // Enable only some gestures to be detected
SetTargetFPS(60); // Set our game to run at 60 frames-per-second
//--------------------------------------------------------------------------------------
// Main game loop
while (!WindowShouldClose()) // Detect window close button or ESC key
{
// Update
//----------------------------------------------------------------------------------
lastGesture = currentGesture;
currentGesture = GetGestureDetected();
touchPosition = GetTouchPosition(0);
if (CheckCollisionPointRec(touchPosition, touchArea) && (currentGesture != GESTURE_NONE))
{
if (currentGesture != lastGesture)
{
// Store gesture string
switch (currentGesture)
{
case GESTURE_TAP: TextCopy(gestureStrings[gesturesCount], "GESTURE TAP"); break;
case GESTURE_DOUBLETAP: TextCopy(gestureStrings[gesturesCount], "GESTURE DOUBLETAP"); break;
case GESTURE_HOLD: TextCopy(gestureStrings[gesturesCount], "GESTURE HOLD"); break;
case GESTURE_DRAG: TextCopy(gestureStrings[gesturesCount], "GESTURE DRAG"); break;
case GESTURE_SWIPE_RIGHT: TextCopy(gestureStrings[gesturesCount], "GESTURE SWIPE RIGHT"); break;
case GESTURE_SWIPE_LEFT: TextCopy(gestureStrings[gesturesCount], "GESTURE SWIPE LEFT"); break;
case GESTURE_SWIPE_UP: TextCopy(gestureStrings[gesturesCount], "GESTURE SWIPE UP"); break;
case GESTURE_SWIPE_DOWN: TextCopy(gestureStrings[gesturesCount], "GESTURE SWIPE DOWN"); break;
case GESTURE_PINCH_IN: TextCopy(gestureStrings[gesturesCount], "GESTURE PINCH IN"); break;
case GESTURE_PINCH_OUT: TextCopy(gestureStrings[gesturesCount], "GESTURE PINCH OUT"); break;
default: break;
}
gesturesCount++;
// Reset gestures strings
if (gesturesCount >= MAX_GESTURE_STRINGS)
{
for (int i = 0; i < MAX_GESTURE_STRINGS; i++) TextCopy(gestureStrings[i], "\0");
gesturesCount = 0;
}
}
}
//----------------------------------------------------------------------------------
// Draw
//----------------------------------------------------------------------------------
BeginDrawing();
ClearBackground(RAYWHITE);
DrawRectangleRec(touchArea, GRAY);
DrawRectangle(225, 15, screenWidth - 240, screenHeight - 30, RAYWHITE);
DrawText("GESTURES TEST AREA", screenWidth - 270, screenHeight - 40, 20, Fade(GRAY, 0.5f));
for (int i = 0; i < gesturesCount; i++)
{
if (i%2 == 0) DrawRectangle(10, 30 + 20*i, 200, 20, Fade(LIGHTGRAY, 0.5f));
else DrawRectangle(10, 30 + 20*i, 200, 20, Fade(LIGHTGRAY, 0.3f));
if (i < gesturesCount - 1) DrawText(gestureStrings[i], 35, 36 + 20*i, 10, DARKGRAY);
else DrawText(gestureStrings[i], 35, 36 + 20*i, 10, MAROON);
}
DrawRectangleLines(10, 29, 200, screenHeight - 50, GRAY);
DrawText("DETECTED GESTURES", 50, 15, 10, GRAY);
if (currentGesture != GESTURE_NONE) DrawCircleV(touchPosition, 30, MAROON);
EndDrawing();
//----------------------------------------------------------------------------------
}
// De-Initialization
//--------------------------------------------------------------------------------------
CloseWindow(); // Close window and OpenGL context
//--------------------------------------------------------------------------------------
}