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engines/crab/ai/spriteai.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_SPRITEAI_H
+#define CRAB_SPRITEAI_H
+
+#include "crab/ai/movement.h"
+#include "crab/PathfindingAgent.h"
+
+namespace Crab {
+
+// class PathfindingAgent;
+namespace pyrodactyl {
+namespace ai {
+
+// States of a fighting sprite
+enum AIFightState {
+	FIGHTSTATE_GETNEXTMOVE,
+	FIGHTSTATE_GETINRANGE,
+	FIGHTSTATE_EXECUTEMOVE,
+	FIGHTSTATE_CANTFIGHT
+};
+
+// States of a fleeing sprite
+enum AIFleeState {
+	FLEESTATE_GETNEARESTEXIT,
+	FLEESTATE_RUNTOEXIT,
+	FLEESTATE_DISAPPEAR,
+	FLEESTATE_CANTFLEE
+};
+
+struct SpriteAIData {
+	// Data required for fighting
+	struct FightData {
+		// The state of the sprite
+		AIFightState _state;
+
+		// Used to count down the time NPCs wait before their next move
+		// Usually varies per move which is why we don't load target for it
+		Timer _delay;
+
+		// The list of moves that can be performed while attacking
+		Common::Array<uint> _attack;
+
+		FightData() {
+			_state = FIGHTSTATE_GETNEXTMOVE;
+		}
+	} _fight;
+
+	// The pattern a peaceful sprite walks in
+	MovementSet _walk;
+
+	// Data required to flee
+	struct FleeData {
+		AIFleeState _state;
+
+		FleeData() {
+			_state = FLEESTATE_GETNEARESTEXIT;
+		}
+	} _flee;
+
+	// The next location the sprite has to reach
+	// PLAYER: Used for adventure game style point-n-click movement
+	// AI: Used for path-finding (usually to the player's location)
+	struct Destination : public Vector2i {
+		// Are we trying to reach the destination?
+		bool _active;
+
+		Destination() {
+			_active = false;
+		}
+	} _dest;
+
+	SpriteAIData() {}
+
+	void dest(const int &x, const int &y, const bool &active = true) {
+		_dest.x = x;
+		_dest.y = y;
+		_dest._active = active;
+	}
+
+	void dest(const Vector2i &v, const bool &active = true) {
+		dest(v.x, v.y, active);
+	}
+};
+} // End of namespace ai
+} // End of namespace pyrodactyl
+
+} // End of namespace Crab
+
+#endif // CRAB_SPRITEAI_H