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engines/twp/actorswitcher.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 TWP_ACTORSWITCHER_H
+#define TWP_ACTORSWITCHER_H
+
+#include "common/func.h"
+#include "twp/scenegraph.h"
+
+namespace Twp {
+
+#define asNone 0
+#define asOn 0x1
+#define asTemporaryUnselectable 0x2
+
+typedef void SelectFunc(int id);
+
+// This is where all the information about the actor icon stands
+struct ActorSwitcherSlot {
+	ActorSwitcherSlot(const Common::String &icon_, const Color &back_, const Color &frame_, SelectFunc *selectFunc_, int id_ = 0);
+
+	void select();
+
+	Common::String icon;
+	Color back, frame;
+	SelectFunc *selectFunc;
+	int id;
+};
+
+// This allows to change the selected actors or to display the options (gear icon)
+class ActorSwitcher : public Node {
+public:
+	ActorSwitcher();
+
+	void update(const Common::Array<ActorSwitcherSlot> &slots, float elapsed);
+	bool isMouseOver() const { return _mouseOver; }
+	void setFlash(int flash) { _flash = flash; }
+
+protected:
+	void drawCore(const Math::Matrix4 &trsf) override final;
+	void drawSprite(const SpriteSheetFrame &sf, Texture *texture, const Color &color, const Math::Matrix4 &trsf);
+	void drawIcon(const Common::String &icon, const Color &backColor, const Color &frameColor, const Math::Matrix4 &trsf, int index);
+	Math::Matrix4 transform(const Math::Matrix4 &trsf, int index);
+	float getAlpha(size_t index) const;
+	float height() const;
+	int iconIndex(const Math::Vector2d &pos) const;
+	Common::Rect rect() const;
+
+public:
+	int _mode = asNone; // current mode
+
+private:
+	bool _mouseOver = false;                  // true when mouse is over the icons
+	bool _down = false;                       // true when mouse button is down
+	float _alpha = 0.f;                       // alpha value for the icon when flash is ON (flash != 0)
+	int _flash = 0;                           // flash = 0: disable, flash = -1: enable, other values: time to flash
+	float _flashElapsed = 0.f;                // flash time elapsed in seconds
+	float _animElapsed = 0.f, _animPos = 0.f; // animation time elapsed in seconds and current position in the animation [0f-1f]
+	Common::Array<ActorSwitcherSlot> _slots;  // list of slots containing icon, colors and select function
+};
+
+} // namespace Twp
+
+#endif