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engines/crab/input/input.h

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/*
+ * This code is based on the CRAB engine
+ *
+ * Copyright (c) Arvind Raja Yadav
+ *
+ * Licensed under MIT
+ *
+ */
+
+#ifndef CRAB_INPUT_H
+#define CRAB_INPUT_H
+
+#include "backends/keymapper/action.h"
+#include "backends/keymapper/keymapper.h"
+#include "backends/keymapper/standard-actions.h"
+
+namespace Crab {
+
+namespace pyrodactyl {
+namespace input {
+enum InputType {
+	IT_NONE = -1,
+
+	// Game related input values
+	IG_UP,
+	IG_DOWN,
+	IG_RIGHT,
+	IG_LEFT,
+	IG_TALK,
+	IG_MAP,
+	IG_JOURNAL,
+	IG_INVENTORY,
+	IG_CHARACTER,
+	IG_PAUSE,
+	IG_QUICKSAVE,
+	IG_QUICKLOAD,
+	IG_ATTACK,
+	IG_BLOCK,
+
+	// UI related input values
+	IU_UP,
+	IU_DOWN,
+	IU_RIGHT,
+	IU_LEFT,
+	IU_ACCEPT,
+	IU_BACK,
+	IU_NEXT,
+	IU_PREV,
+	IU_REPLY_0,
+	IU_REPLY_1,
+	IU_REPLY_2,
+	IU_REPLY_3,
+	IU_REPLY_4,
+	IU_REPLY_5,
+	IU_PAGE_NEXT,
+	IU_PAGE_PREV,
+
+	IT_TOTAL
+};
+
+enum KeyBindingMode {
+	KBM_NONE = 0,
+	KBM_GAME = 1,
+	KBM_UI = 2
+};
+
+// Constants related to menu size
+const int IG_START = IG_UP, IG_SIZE = IG_BLOCK - IG_START + 1;
+const int IU_START = IU_UP, IU_SIZE = IT_TOTAL - IU_START;
+
+class InputManager {
+	// Load key configuration from file
+	void load(const Common::String &filename);
+
+	// The current version of the input scheme
+	uint _version;
+
+	// The current mode of keymap applied
+	KeyBindingMode _keyMode;
+
+	// The keybinds in string format for hotkeys and other places
+	Common::String _keyDescs[IT_TOTAL];
+
+public:
+	InputManager() {
+		_version = 0;
+		_keyMode = KBM_GAME;
+
+		clearInputs();
+	}
+
+	~InputManager() {}
+
+	static Common::Keymap *getDefaultKeyMapsForGame();
+	static Common::Keymap *getDefaultKeyMapsForUI();
+	static Common::Keymap *getDefaultKeyMapsForHUD();
+
+	void clearInputs() {
+		for (int i = 0; i < IT_TOTAL; i++)
+			_ivState[i] = false;
+	}
+
+	void populateKeyTable();
+
+	void setKeyBindingMode(KeyBindingMode mode);
+
+	KeyBindingMode getKeyBindingMode() const {
+		return _keyMode;
+	}
+
+	// NOTE: The lower level arrays can have buttons in common, but buttons cannot be common within these arrays
+	// Ex. UI and Fight can have buttons in common, but not two keys within UI
+
+	// Inputs used in the game
+	Common::String _iv[IT_TOTAL];
+	bool _ivState[IT_TOTAL];
+
+	// These functions return true if key is pressed, false otherwise
+	bool state(const InputType &val);
+
+	Common::String getAssociatedKey(const InputType &type);
+
+	// Save and flush the keymaps to disk
+	void save();
+};
+
+} // End of namespace input
+} // End of namespace pyrodactyl
+
+} // End of namespace Crab
+
+#endif // CRAB_INPUT_H