diff options
Diffstat (limited to 'Runtime/Math/Rect.h')
| -rw-r--r-- | Runtime/Math/Rect.h | 152 |
1 files changed, 4 insertions, 148 deletions
diff --git a/Runtime/Math/Rect.h b/Runtime/Math/Rect.h index dbd147c..4725375 100644 --- a/Runtime/Math/Rect.h +++ b/Runtime/Math/Rect.h @@ -1,150 +1,6 @@ -#ifndef RECT_H -#define RECT_H +#pragma once -#include "Vector2.h" - -// A rectangle. -template <typename T> -class RectT -{ -public: - typedef RectT<T> RectType; - typedef float BaseType; - - T x; //< Rectangle x coordinate. - T y; //< Rectangle y coordinate. - T width; //< Rectangle width. - T height; //< Rectangle height. - - inline static const char* GetTypeString(); - inline static bool IsAnimationChannel() { return false; } - inline static bool MightContainPPtr() { return false; } - // Create a empty rectangle. - RectT() - { - Reset(); - } - - // Create a new rectangle. - RectT(T inX, T inY, T iWidth, T iHeight) - { - x = inX; width = iWidth; - y = inY; height = iHeight; - } - - T GetRight() const { return x + width; } - T GetBottom() const { return y + height; } - void SetLeft(T l) { T oldXMax = GetXMax(); x = l; width = oldXMax - x; } - void SetTop(T t) { T oldYMax = GetYMax(); y = t; height = oldYMax - y; } - void SetRight(T r) { width = r - x; } - void SetBottom(T b) { height = b - y; } - - - T GetXMax() const { return x + width; } - T GetYMax() const { return y + height; } - - // Return true if rectangle is empty. - inline bool IsEmpty() const { return width <= 0 || height <= 0; } - - inline void SetPosition(const Vector2f& position) { x = position.x; y = position.y; } - inline Vector2f GetPosition() const { return Vector2f(x, y); } - - inline void SetSize(const Vector2f& size) { width = size.x; height = size.y; } - inline Vector2f GetSize() const { return Vector2f(width, height); } - // Resets the rectangle - inline void Reset() { x = y = width = height = 0; } - - // Sets the rectangle - inline void Set(T inX, T inY, T iWidth, T iHeight) - { - x = inX; width = iWidth; - y = inY; height = iHeight; - } - - inline void Scale(T dx, T dy) { x *= dx; width *= dx; y *= dy; height *= dy; } - - // Set Center position of rectangle (size stays the same) - void SetCenterPos(T cx, T cy) { x = cx - width / 2; y = cy - height / 2; } - Vector2f GetCenterPos() const { return Vector2f(x + (BaseType)width / 2, y + (BaseType)height / 2); } - - // Ensure this is inside the rect r. - void Clamp(const RectType &r) - { - T x2 = x + width; - T y2 = y + height; - T rx2 = r.x + r.width; - T ry2 = r.y + r.height; - - if (x < r.x) x = r.x; - if (x2 > rx2) x2 = rx2; - if (y < r.y) y = r.y; - if (y2 > ry2) y2 = ry2; - - width = x2 - x; - if (width < 0) width = 0; - - height = y2 - y; - if (height < 0) height = 0; - } - - // Move rectangle by deltaX, deltaY. - inline void Move(T dX, T dY) { x += dX; y += dY; } - - // Return the width of rectangle. - inline T Width() const { return width; } - - // Return the height of rectangle. - inline T Height() const { return height; } - - // Return true if a point lies within rectangle bounds. - inline bool Contains(T px, T py) const { return (px >= x) && (px < x + width) && (py >= y) && (py < y + height); } - inline bool Contains(const Vector2f& p) const { return Contains(p.x, p.y); } - // Return true if a relative point lies within rectangle bounds. - inline bool ContainsRel(T x, T y) const - { - return (x >= 0) && (x < Width()) && (y >= 0) && (y < Height()); - } - - inline bool Intersects(const RectType& r) const - { - // Rects are disjoint if there's at least one separating axis - bool disjoint = x + width < r.x; - disjoint |= r.x + r.width < x; - disjoint |= y + height < r.y; - disjoint |= r.y + r.height < y; - return !disjoint; - } - - // Normalize a rectangle such that xmin <= xmax and ymin <= ymax. - inline void Normalize() - { - width = std::max<T>(width, 0); - height = std::max<T>(height, 0); - } - - bool operator == (const RectType& r)const { return x == r.x && y == r.y && width == r.width && height == r.height; } - bool operator != (const RectType& r)const { return x != r.x || y != r.y || width != r.width || height != r.height; } -}; - -typedef RectT<float> Rectf; -typedef RectT<int> RectInt; - -template<> inline const char* Rectf::GetTypeString() { return "Rectf"; } -template<> inline const char* RectInt::GetTypeString() { return "RectInt"; } - -inline bool CompareApproximately(const Rectf& lhs, const Rectf& rhs) +struct Rect { - return CompareApproximately(lhs.x, rhs.x) && CompareApproximately(lhs.y, rhs.y) && - CompareApproximately(lhs.width, rhs.width) && CompareApproximately(lhs.height, rhs.height); -} - -// Make a rect with width & height -template<typename T> -inline RectT<T> MinMaxRect(T minx, T miny, T maxx, T maxy) { return RectT<T>(minx, miny, maxx - minx, maxy - miny); } - -// RectT<float> specialization -template<> -inline bool Rectf::IsEmpty() const { return width <= 0.00001F || height <= 0.00001F; } - - -#endif + int x, y, width, height; +};
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