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engines/ags/tests/test_math.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/>.
+ *
+ */
+
+#include "ags/shared/core/platform.h"
+//#include "ags/shared/debugging/assert.h"
+// File not present??
+#include "common/scummsys.h"
+#include "ags/shared/util/scaling.h"
+
+namespace AGS3 {
+
+using namespace AGS::Shared;
+//using namespace AGS::Engine;
+
+void Test_Scaling(int src, int dst) {
+	int x;
+	AxisScaling sc;
+	sc.Init(src, dst);
+	x = sc.ScalePt(0);
+	assert(x == 0);
+	x = sc.ScalePt(src);
+	assert(x == dst);
+	x = sc.UnScalePt(dst);
+	assert(x == src);
+}
+
+void Test_Math() {
+	Test_Scaling(100, 100);
+
+	Test_Scaling(100, 1000);
+	Test_Scaling(320, 1280);
+	Test_Scaling(200, 400);
+
+	Test_Scaling(1000, 100);
+	Test_Scaling(1280, 320);
+	Test_Scaling(400, 200);
+
+	Test_Scaling(300, 900);
+	Test_Scaling(100, 700);
+	Test_Scaling(200, 2200);
+
+	Test_Scaling(900, 300);
+	Test_Scaling(700, 100);
+	Test_Scaling(2200, 200);
+
+	for (int i = 250; i < 2000; i += 25) {
+		Test_Scaling(200, i);
+		Test_Scaling(i, 200);
+	}
+}
+
+} // namespace AGS3