Initial commit

engines/bladerunner/rect_float.h

@@ -0,0 +1,75 @@
+/* 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 BLADERUNNER_RECT_FLOAT_H
+#define BLADERUNNER_RECT_FLOAT_H
+
+#include "common/debug.h"
+#include "common/types.h"
+#include "common/util.h"
+#include "math/utils.h"
+
+namespace BladeRunner {
+
+struct RectFloat {
+	float x0;
+	float y0;
+	float x1;
+	float y1;
+
+	RectFloat()
+		: x0(0.0f), y0(0.0f), x1(0.0f), y1(0.0f)
+	{}
+	RectFloat(float x0_, float y0_, float x1_, float y1_)
+		: x0(x0_), y0(y0_), x1(x1_), y1(y1_)
+	{}
+
+	void expand(float d) {
+		x0 -= d;
+		y0 -= d;
+		x1 += d;
+		y1 += d;
+	}
+
+	void trunc_2_decimals() {
+		x0 = Math::trunc(x0 * 100.0f) / 100.0f;
+		y0 = Math::trunc(y0 * 100.0f) / 100.0f;
+		x1 = Math::trunc(x1 * 100.0f) / 100.0f;
+		y1 = Math::trunc(y1 * 100.0f) / 100.0f;
+	}
+};
+
+inline bool overlaps(const RectFloat &a, const RectFloat &b) {
+	return !(a.y1 < b.y0 || a.y0 > b.y1 || a.x0 > b.x1 || a.x1 < b.x0);
+}
+
+inline RectFloat merge(const RectFloat &a, const RectFloat &b) {
+	RectFloat c;
+	c.x0 = MIN(a.x0, b.x0);
+	c.y0 = MIN(a.y0, b.y0);
+	c.x1 = MAX(a.x1, b.x1);
+	c.y1 = MAX(a.y1, b.y1);
+	return c;
+}
+
+} // End of namespace BladeRunner
+
+#endif