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engines/cge/game.cpp

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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 original Soltys source code
+ * Copyright (c) 1994-1995 Janusz B. Wisniewski and L.K. Avalon
+ */
+
+#include "cge/game.h"
+#include "cge/events.h"
+
+namespace CGE {
+
+Fly::Fly(CGEEngine *vm, Bitmap **shpl)
+	: Sprite(vm, shpl), _tx(0), _ty(0), _vm(vm) {
+	step(_vm->newRandom(2));
+	gotoxy(kFlyL + _vm->newRandom(kFlyR - kFlyL - _w), kFlyT + _vm->newRandom(kFlyB - kFlyT - _h));
+}
+
+void Fly::tick() {
+	step();
+	if (_flags._kept)
+		return;
+	if (_vm->newRandom(10) < 1) {
+		_tx = _vm->newRandom(3) - 1;
+		_ty = _vm->newRandom(3) - 1;
+	}
+	if (_x + _tx < kFlyL || _x + _tx + _w > kFlyR)
+		_tx = -_tx;
+	if (_y + _ty < kFlyT || _y + _ty + _h > kFlyB)
+		_ty = -_ty;
+	gotoxy(_x + _tx, _y + _ty);
+}
+
+} // End of namespace CGE