Add simple side to side ui controller example

examples/core/core_input_ui.c

@@ -0,0 +1,113 @@
+/*******************************************************************************************
+*
+*   raylib [core] example - UI input
+*
+*   Example complexity rating: [★☆☆☆] 1/4
+*
+*   Example originally created with raylib 5.6, last time updated with raylib 5.6
+*
+*   Example contributed by Maicon Santana (@maiconpintoabreu) and reviewed by Ramon Santamaria (@raysan5)
+*
+*   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) 2018-2025 Maicon Santana (@maiconpintoabreu)
+*
+********************************************************************************************/
+
+#include "raylib.h"
+
+//----------------------------------------------------------------------------------
+// Module Functions Declaration
+//----------------------------------------------------------------------------------
+static bool UIButtomIcon(Vector2 position, Texture2D icon); // Check if button clicked
+
+//------------------------------------------------------------------------------------
+// Program main entry point
+//------------------------------------------------------------------------------------
+int main(void)
+{
+    // Initialization
+    //--------------------------------------------------------------------------------------
+    const int screenWidth = 800;
+    const int screenHeight = 450;
+
+    InitWindow(screenWidth, screenHeight, "raylib [core] example - ui input");
+    Image arrowImage = GenImageColor(64, 64, BLANK);
+    ImageDrawTriangle(&arrowImage, (Vector2){4, 31}, (Vector2){37, 4}, (Vector2){37, 59}, GRAY);
+    Texture2D leftArrow = LoadTextureFromImage(arrowImage);
+    ImageRotate(&arrowImage, 180);
+    Texture2D rightArrow = LoadTextureFromImage(arrowImage);
+    UnloadImage(arrowImage);
+
+    Vector2 ballPosition = { (float)screenWidth/2, (float)screenHeight/3 };
+
+    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
+        //----------------------------------------------------------------------------------
+        if (IsKeyDown(KEY_RIGHT)) ballPosition.x += 2.0f;
+        if (IsKeyDown(KEY_LEFT)) ballPosition.x -= 2.0f;
+        if (IsKeyDown(KEY_UP)) ballPosition.y -= 2.0f;
+        if (IsKeyDown(KEY_DOWN)) ballPosition.y += 2.0f;
+        //----------------------------------------------------------------------------------
+
+        // Draw
+        //----------------------------------------------------------------------------------
+        BeginDrawing();
+
+            ClearBackground(RAYWHITE);
+
+            DrawText("move the ball with ui buttons", 10, 10, 20, DARKGRAY);
+            
+            if (UIButtomIcon((Vector2){250, screenHeight - 120}, rightArrow)) ballPosition.x += 2.0f;
+            if (UIButtomIcon((Vector2){100, screenHeight - 120}, leftArrow)) ballPosition.x -= 2.0f;
+
+            DrawCircleV(ballPosition, 50, MAROON);
+
+        EndDrawing();
+        //----------------------------------------------------------------------------------
+    }
+
+    // De-Initialization
+    //--------------------------------------------------------------------------------------
+    
+    UnloadTexture(rightArrow);
+    UnloadTexture(leftArrow);
+
+    CloseWindow();        // Close window and OpenGL context
+    //--------------------------------------------------------------------------------------
+
+    return 0;
+}
+
+static bool UIButtomIcon(Vector2 position, Texture2D icon) {
+    // Check for Houver and Draw the button
+    //--------------------------------------------------------------------------------------
+    bool checkHouver = CheckCollisionPointCircle(GetMousePosition(), position, icon.width);
+    DrawCircle(position.x, position.y, icon.width, checkHouver ? LIGHTGRAY : DARKGRAY);
+    DrawTexture(icon, position.x - icon.width / 2, position.y - icon.width / 2, WHITE);
+    //--------------------------------------------------------------------------------------
+
+    // Check Mouse Left Button
+    //--------------------------------------------------------------------------------------
+    if (checkHouver && IsMouseButtonDown(MOUSE_BUTTON_LEFT)) {
+        return true;
+    }
+    //--------------------------------------------------------------------------------------
+
+    // Check All Current Touch Points
+    //--------------------------------------------------------------------------------------
+    int touchCount = GetTouchPointCount();
+    for (int i = 0; i < touchCount; i++) {
+        if (CheckCollisionPointCircle(GetTouchPosition(i), position, icon.width)) {
+            return true;
+        }
+    }
+    //--------------------------------------------------------------------------------------
+    return false;
+}