Add virtual touch buttons for Monopoly game and centralize configuration in ModalButtonHelper

lib/input_manager.cpp

@@ -93,6 +93,14 @@ InputEvent InputManager::process_touch_input(uint32_t* last_time) {
     // Determine event type
     if (*last_time == 0) {
         event.type = INPUT_TOUCH_DOWN;
+
+        // Check for virtual buttons
+        InputType virtual_type;
+        if (check_virtual_buttons(event.x, event.y, virtual_type)) {
+            event.type = virtual_type;
+            event.button_id = (virtual_type == INPUT_BUTTON_0) ? 0 : 1;
+            printf("Virtual button %d pressed via touch\n", event.button_id);
+        }
     } else {
         event.type = INPUT_TOUCH_MOVE;
     }
@@ -164,3 +172,38 @@ const char* InputManager::get_gesture_name(uint8_t gesture_code) {
         default: return "Unknown";
     }
 }
+
+void InputManager::get_virtual_button_regions(int* a_rect, int* b_rect) const {
+    for (int i = 0; i < 4; i++) {
+        a_rect[i] = v_button_a[i];
+        b_rect[i] = v_button_b[i];
+    }
+}
+
+void InputManager::set_virtual_button_regions(int ax, int ay, int aw, int ah, int bx, int by, int bw, int bh) {
+    v_button_a[0] = ax; v_button_a[1] = ay; v_button_a[2] = aw; v_button_a[3] = ah;
+    v_button_b[0] = bx; v_button_b[1] = by; v_button_b[2] = bw; v_button_b[3] = bh;
+    v_buttons_active = true;
+}
+
+void InputManager::clear_virtual_button_regions() {
+    v_buttons_active = false;
+}
+
+bool InputManager::check_virtual_buttons(int16_t x, int16_t y, InputType& out_type) const {
+    if (!v_buttons_active) return false;
+
+    if (x >= v_button_a[0] && x <= v_button_a[0] + v_button_a[2] && 
+        y >= v_button_a[1] && y <= v_button_a[1] + v_button_a[3]) {
+        out_type = INPUT_BUTTON_0;
+        return true;
+    }
+    
+    if (x >= v_button_b[0] && x <= v_button_b[0] + v_button_b[2] && 
+        y >= v_button_b[1] && y <= v_button_b[1] + v_button_b[3]) {
+        out_type = INPUT_BUTTON_1;
+        return true;
+    }
+    
+    return false;
+}

lib/input_manager.h

@@ -48,6 +48,32 @@ public:
      * @return InputEvent (valid=false if no valid input)
      */
     InputEvent process_button_input();
+
+    /**
+     * @brief Get virtual button regions for drawing
+     * @param a_rect Pointer to rectangle for Button A [x, y, w, h]
+     * @param b_rect Pointer to rectangle for Button B [x, y, w, h]
+     */
+    void get_virtual_button_regions(int* a_rect, int* b_rect) const;
+
+    /**
+     * @brief Set virtual button regions
+     */
+    void set_virtual_button_regions(int ax, int ay, int aw, int ah, int bx, int by, int bw, int bh);
+
+    /**
+     * @brief Clear virtual button regions (disables detection)
+     */
+    void clear_virtual_button_regions();
+
+    /**
+     * @brief Check if a touch event hits a virtual button
+     * @param x Touch X coordinate
+     * @param y Touch Y coordinate
+     * @param out_type Output parameter for the button type if hit
+     * @return true if a virtual button was hit
+     */
+    bool check_virtual_buttons(int16_t x, int16_t y, InputType& out_type) const;
     
     /**
      * @brief Get human-readable gesture name
@@ -71,6 +97,11 @@ public:
 private:
     LowLevelTouch* touch;
     const GameConfig* config;
+    
+    // Virtual button regions
+    int v_button_a[4] = {0, 0, 0, 0}; // [x, y, w, h]
+    int v_button_b[4] = {0, 0, 0, 0};
+    bool v_buttons_active = false;
 };
 
 #endif // INPUT_MANAGER_H