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engines/titanic/star_control/base_stars.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 TITANIC_BASE_STARS_H
+#define TITANIC_BASE_STARS_H
+
+#include "titanic/star_control/frange.h"
+#include "common/array.h"
+
+namespace Common {
+class SeekableReadStream;
+}
+
+namespace Titanic {
+
+enum StarMode { MODE_STARFIELD = 0, MODE_PHOTO = 1 };
+
+class CCamera;
+class CStarCloseup;
+class CString;
+class CSurfaceArea;
+class SimpleFile;
+
+struct CBaseStarEntry {
+	byte _red;
+	byte _green;
+	byte _blue;
+	byte _thickness;
+	double _value;
+	FVector _position;
+	uint _data[5];
+
+	CBaseStarEntry();
+
+	/**
+	 * Loads the data for a star
+	 */
+	void load(Common::SeekableReadStream &s);
+
+	bool operator==(const CBaseStarEntry &s) const;
+};
+
+struct CStarPosition : public Common::Point {
+	int _index1;
+	int _index2;
+	CStarPosition() : _index1(0), _index2(0) {}
+
+	bool operator==(const CStarPosition &sp) const {
+		return x == sp.x && y == sp.y && _index1 == sp._index1 && _index2 == sp._index2;
+	}
+};
+
+/**
+ * Base class for views that draw a set of stars in simulated 3D space
+ */
+class CBaseStars {
+private:
+	void draw1(CSurfaceArea *surfaceArea, CCamera *camera, CStarCloseup *closeup);
+	void draw2(CSurfaceArea *surfaceArea, CCamera *camera, CStarCloseup *closeup);
+	void draw3(CSurfaceArea *surfaceArea, CCamera *camera, CStarCloseup *closeup);
+	void draw4(CSurfaceArea *surfaceArea, CCamera *camera, CStarCloseup *closeup);
+protected:
+	FRange _minMax;
+	double _minVal;
+	double _maxVal;
+	double _range;
+	double _value1, _value2;
+	double _value3, _value4;
+protected:
+	/**
+	 * Load entry data from a passed stream
+	 */
+	void loadData(Common::SeekableReadStream &s);
+
+	/**
+	 * Load entry data from a specified resource
+	 */
+	void loadData(const CString &resName);
+
+	/**
+	 * Reset the data for an entry
+	 */
+	void resetEntry(CBaseStarEntry &entry);
+public:
+	Common::Array<CBaseStarEntry> _data;
+public:
+	CBaseStars();
+	virtual ~CBaseStars() {}
+
+	/**
+	 * Draw the item
+	 */
+	virtual void draw(CSurfaceArea *surfaceArea, CCamera *camera, CStarCloseup *closeup);
+
+	virtual bool loadYale(int v1) { return true; }
+
+	/**
+	 * Selects a star
+	 */
+	virtual bool selectStar(CSurfaceArea *surfaceArea, CCamera *camera,
+		const Common::Point &pt, void *handler = nullptr) { return false; }
+
+	/**
+	 * Adds a new star, or removes one if already present at the given co-ordinates
+	 */
+	virtual bool addStar(const CBaseStarEntry *entry) { return false; }
+
+	virtual bool loadStar() { return false; }
+
+	/**
+	 * Load the item's data
+	 */
+	virtual void load(SimpleFile *file) {}
+
+	/**
+	 * Save the item's data
+	 */
+	virtual void save(SimpleFile *file, int indent) {}
+
+	/**
+	 * Clear allocated data
+	 */
+	void clear();
+
+	void initialize();
+
+	int size() const { return _data.size(); }
+
+	/**
+	 * Get a pointer to a data entry
+	 */
+	const CBaseStarEntry *getDataPtr(int index) const;
+
+	/**
+	 * Checks for the presence of a star at a given position on the
+	 * screen given the specified camera view, and returns it's index
+	 */
+	int findStar(CSurfaceArea *surfaceArea, CCamera *camera,
+		const Common::Point &pt);
+
+	int baseFn2(CSurfaceArea *surfaceArea, CCamera *camera);
+};
+
+} // End of namespace Titanic
+
+#endif /* TITANIC_BASE_STARS_H */