Committing current progress.

src/ui/menu.c

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+/**
+ * Copyright (c) 2021 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "menu.h"
+
+void menuInit(menu_t *menu, int32_t columns, int32_t rows) {
+  int32_t i;
+  menu->columns = columns;
+  menu->rows = rows;
+  menu->holdAllow = true;
+  menu->direction = 0x00;
+  for(i = 0; i < MENU_ITEMS_MAX; i++) menu->items[i] = NULL;
+}
+
+void menuUpdate(menu_t *menu, engine_t *engine) {
+  inputbind_t bind;
+  float heldTime, heldDue;
+
+  // Handle press binds.
+  if(inputIsPressed(&engine->input, INPUT_DOWN)) {
+    menu->y = (menu->y + 1) % menu->rows;
+    menu->direction = MENU_DIRECTION_DOWN;
+  } else if(inputIsPressed(&engine->input, INPUT_UP)) {
+    menu->y = (menu->y - 1) % menu->rows;
+    menu->direction = MENU_DIRECTION_DOWN;
+  } else if(inputIsPressed(&engine->input, INPUT_LEFT)) {
+    menu->x = (menu->x - 1) % menu->columns;
+    menu->direction = MENU_DIRECTION_DOWN;
+  } else if(inputIsPressed(&engine->input, INPUT_RIGHT)) {
+    menu->x = (menu->x + 1) % menu->columns;
+    menu->direction = MENU_DIRECTION_DOWN;
+  }
+
+  // Handle held
+  if(menu->holdAllow && menu->direction != 0x00) {
+    bind = (
+      menu->direction == MENU_DIRECTION_DOWN ? INPUT_DOWN :
+      menu->direction == MENU_DIRECTION_UP ? INPUT_UP :
+      menu->direction == MENU_DIRECTION_LEFT ? INPUT_LEFT :
+      menu->direction == MENU_DIRECTION_RIGHT ? INPUT_RIGHT :
+      INPUT_NULL
+    );
+
+    if(inputIsDown(&engine->input, bind)) {
+      heldTime = engine->time.current - inputGetAccuated(&engine->input, bind);
+      heldDue = engine->time.current - menu->holdLast;
+      
+      // Have we held long enough?
+      if(heldTime >= MENU_HOLD_DURATION) {
+        
+        menu->holdLast = engine->time.current;
+      }
+    } else {
+      menu->holdLast = engine->time.current;
+    }
+  }
+
+  // Handle Mouse
+
+}

src/ui/menu.h

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+/**
+ * Copyright (c) 2021 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include <dawn/dawn.h>
+#include "../input/input.h"
+#include "../epoch/epoch.h"
+
+/**
+ * Initialize a menu.
+ * 
+ * @param menu Menu to initialize.
+ * @param columns Count of rows.
+ * @param rows Count of columns.
+ */
+void menuInit(menu_t *menu, int32_t columns, int32_t rows);
+
+/**
+ * Updates the menu to handle inputs.
+ * 
+ * @param menu Menu to update.
+ * @param engine Engine to update from.
+ */
+void menuUpdate(menu_t *menu, engine_t *engine);