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engines/grim/animation.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/>.
+ *
+ */
+
+#ifndef GRIM_ANIMATION_H
+#define GRIM_ANIMATION_H
+
+#include "engines/grim/keyframe.h"
+
+namespace Grim {
+
+class SaveGame;
+class AnimManager;
+
+class Animation {
+public:
+	enum RepeatMode {
+		Once = 0,
+		Looping = 1,
+		PauseAtEnd = 2,
+		FadeAtEnd = 3
+	};
+	enum FadeMode {
+		None = 0,
+		FadeIn = 1,
+		FadeOut = 2
+	};
+
+	Animation(const Common::String &keyframe, AnimManager *manager, int pr1, int pr2);
+	~Animation();
+	void activate();
+	void deactivate();
+	void play(RepeatMode repeatMode);
+	void fade(FadeMode fadeMode, int fadeLength);
+	void pause(bool pause);
+	void stop();
+	bool getIsActive() const;
+	FadeMode getFadeMode() const;
+
+	int update(uint time);
+
+	void saveState(SaveGame *state) const;
+	void restoreState(SaveGame *state);
+
+private:
+	AnimManager *_manager;
+	ObjectPtr<KeyframeAnim> _keyframe;
+	int _priority1;
+	int _priority2;
+	bool _paused;
+	bool _active;
+	int _time;
+	float _fade;
+	RepeatMode _repeatMode;
+	FadeMode _fadeMode;
+	int _fadeLength;
+
+	friend class AnimManager;
+};
+
+class AnimManager {
+public:
+	AnimManager();
+	~AnimManager();
+	void addAnimation(Animation *anim, int pr1, int pr2);
+	void removeAnimation(const Animation *anim);
+
+	void animate(ModelNode *hier, int numNodes);
+
+private:
+	struct AnimationEntry {
+		Animation *_anim;
+		int _priority;
+		bool _tagged;
+	};
+
+	Common::List<AnimationEntry> _activeAnims;
+};
+
+}
+
+#endif