Initial size handling

Math/public/Range.hpp

@@ -0,0 +1,39 @@
+
+#pragma once
+
+#include "Common.hpp"
+
+namespace tp {
+	template <typename Type>
+	class Range {
+	public:
+		Range() = default;
+		Range(Type v1, Type v2) : start(v1), end(v2) {}
+
+		Type mid() const { return (start + end) / 2.f; }
+		Type size() const { return (end - start); }
+
+		void resizeFromCenter(Type newSize) {
+			const auto middle = mid();
+			const auto len = newSize / 2;
+			start = middle - len;
+			end = middle + len;
+		}
+
+		void clamp(const Range& inside, const Range& outside) {
+			start = tp::clamp(start, outside.start, inside.start);
+			end = tp::clamp(end, inside.end, outside.end);
+		}
+
+		void clamp(const Range& outside) {
+			start = tp::clamp(start, outside.start, outside.end);
+			end = tp::clamp(end, outside.start, outside.end);
+		}
+
+	public:
+		Type start{};
+		Type end{};
+	};
+
+	using RangeF = Range<halnf>;
+}