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>;
+}

Math/public/Rect.hpp

@@ -2,6 +2,7 @@
 #pragma once
 
 #include "Vec.hpp"
+#include "Range.hpp"
 
 #include "Intersections.hpp"
 
@@ -35,6 +36,11 @@ namespace tp {
 			this->size = size;
 		}
 
+		Rect(const Range<Type>& rx, const Range<Type>& ry) {
+			this->pos = { rx.start, ry.start };
+			this->size = { rx.size(), ry.size() };
+		}
+
 		Rect(Type aPosX, Type posy, Type aSizeX, Type aSizeY) {
 			pos.assign(aPosX, posy);
 			size.assign(aSizeX, aSizeY);
@@ -64,7 +70,7 @@ namespace tp {
 			return *this;
 		}
 
-		bool operator==(Rect<Type>& rect) const { return (pos == rect.pos && size == rect.size); }
+		bool operator==(const Rect<Type>& rect) const { return (pos == rect.pos && size == rect.size); }
 
 		bool isEnclosedIn(const Rect<Type>& rect, bool aParent = false) const {
 			if (aParent) {
@@ -102,6 +108,11 @@ namespace tp {
 
 		void invertY(Type scr_y) { pos.y = scr_y - pos.y - size.y; }
 
+		Rect& move(Vec2<Type> delta) {
+			move(delta.x, delta.y);
+			return *this;
+		}
+
 		void move(Type dx, Type dy) {
 			pos.x += dx;
 			pos.y += dy;
@@ -119,6 +130,9 @@ namespace tp {
 			return *this;
 		}
 
+		Range<Type> getRangeX() const { return { x, x + z }; }
+		Range<Type> getRangeY() const { return { y, y + w }; }
+
 		// pos
 		Vec2<Type> p1() const { return pos; }
 

Math/public/Vec.hpp

@@ -226,8 +226,8 @@ namespace tp {
 		Type y;
 
 		Vec() :
-			x(0),
-			y(0) {}
+			x{},
+			y{} {}
 
 		// Initialization
 		template <typename TypeIn>