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authorchai <chaifix@163.com>2020-11-10 18:46:11 +0800
committerchai <chaifix@163.com>2020-11-10 18:46:11 +0800
commit59e6235113a4d933811aa2cf6fdc8282ce394b9d (patch)
tree12410a230c5339ca88be6842c0dc811d5c6ec0ba /Runtime/Math/Vector2.h
parentf0807fc44dde14531759306317611bab87c8fccf (diff)
*window
Diffstat (limited to 'Runtime/Math/Vector2.h')
-rw-r--r--Runtime/Math/Vector2.h111
1 files changed, 103 insertions, 8 deletions
diff --git a/Runtime/Math/Vector2.h b/Runtime/Math/Vector2.h
index 7bf3987..01fa015 100644
--- a/Runtime/Math/Vector2.h
+++ b/Runtime/Math/Vector2.h
@@ -1,17 +1,112 @@
#ifndef VECTOR2_H
#define VECTOR2_H
-class Vector2
+#include "FloatConversion.h"
+
+class Vector2f
{
-public:
- float x, y;
+public:
+ float x, y;
+
+
+ Vector2f() : x(0.f), y(0.f) {}
+ Vector2f(float inX, float inY) { x = inX; y = inY; }
+ explicit Vector2f(const float* p) { x = p[0]; y = p[1]; }
+
+ void Set(float inX, float inY) { x = inX; y = inY; }
+
+ float* GetPtr() { return &x; }
+ const float* GetPtr()const { return &x; }
+ float& operator[] (int i) { DebugAssertIf(i < 0 || i > 1); return (&x)[i]; }
+ const float& operator[] (int i)const { DebugAssertIf(i < 0 || i > 1); return (&x)[i]; }
- inline void Set(float x, float y)
- {
- this->x = x;
- this->y = y;
- }
+ Vector2f& operator += (const Vector2f& inV) { x += inV.x; y += inV.y; return *this; }
+ Vector2f& operator -= (const Vector2f& inV) { x -= inV.x; y -= inV.y; return *this; }
+ Vector2f& operator *= (const float s) { x *= s; y *= s; return *this; }
+ Vector2f& operator /= (const float s) { DebugAssertIf(CompareApproximately(s, 0.0F)); x /= s; y /= s; return *this; }
+ bool operator == (const Vector2f& v)const { return x == v.x && y == v.y; }
+ bool operator != (const Vector2f& v)const { return x != v.x || y != v.y; }
+
+ Vector2f operator - () const { return Vector2f(-x, -y); }
+
+ Vector2f& Scale(const Vector2f& inV) { x *= inV.x; y *= inV.y; return *this; }
+
+ static const float epsilon;
+ static const float infinity;
+ static const Vector2f infinityVec;
+ static const Vector2f zero;
+ static const Vector2f xAxis;
+ static const Vector2f yAxis;
};
+//inline Vector2f Scale(const Vector2f& lhs, const Vector2f& rhs) { return Vector2f(lhs.x * rhs.x, lhs.y * rhs.y); }
+//
+//inline Vector2f operator + (const Vector2f& lhs, const Vector2f& rhs) { return Vector2f(lhs.x + rhs.x, lhs.y + rhs.y); }
+//inline Vector2f operator - (const Vector2f& lhs, const Vector2f& rhs) { return Vector2f(lhs.x - rhs.x, lhs.y - rhs.y); }
+//inline float Dot(const Vector2f& lhs, const Vector2f& rhs) { return lhs.x * rhs.x + lhs.y * rhs.y; }
+//
+//inline float SqrMagnitude(const Vector2f& inV) { return Dot(inV, inV); }
+//inline float Magnitude(const Vector2f& inV) { return SqrtImpl(Dot(inV, inV)); }
+//
+//inline float Angle(const Vector2f& lhs, const Vector2f& rhs) { return acos(std::min(1.0f, std::max(-1.0f, Dot(lhs, rhs) / (Magnitude(lhs) * Magnitude(rhs))))); }
+//
+//inline Vector2f operator * (const Vector2f& inV, float s) { return Vector2f(inV.x * s, inV.y * s); }
+//inline Vector2f operator * (const float s, const Vector2f& inV) { return Vector2f(inV.x * s, inV.y * s); }
+//inline Vector2f operator / (const Vector2f& inV, float s) { Vector2f temp(inV); temp /= s; return temp; }
+//inline Vector2f Inverse(const Vector2f& inVec) { return Vector2f(1.0F / inVec.x, 1.0F / inVec.y); }
+//
+//// Normalizes a vector, asserts if the vector can be normalized
+//inline Vector2f Normalize(const Vector2f& inV) { return inV / Magnitude(inV); }
+//// Normalizes a vector, returns default vector if it can't be normalized
+//inline Vector2f NormalizeSafe(const Vector2f& inV, const Vector2f& defaultV = Vector2f::zero);
+//
+//inline Vector2f Lerp(const Vector2f& from, const Vector2f& to, float t) { return to * t + from * (1.0f - t); }
+//
+//// Returns a vector with the smaller of every component from v0 and v1
+//inline Vector2f min(const Vector2f& lhs, const Vector2f& rhs) { return Vector2f(std::min(lhs.x, rhs.x), std::min(lhs.y, rhs.y)); }
+//// Returns a vector with the larger of every component from v0 and v1
+//inline Vector2f max(const Vector2f& lhs, const Vector2f& rhs) { return Vector2f(std::max(lhs.x, rhs.x), std::max(lhs.y, rhs.y)); }
+//
+//bool CompareApproximately(const Vector2f& inV0, const Vector2f& inV1, float inMaxDist = Vector2f::epsilon);
+//
+//inline bool CompareApproximately(const Vector2f& inV0, const Vector2f& inV1, float inMaxDist)
+//{
+// return SqrMagnitude(inV1 - inV0) < inMaxDist * inMaxDist;
+//}
+//
+//inline bool IsNormalized(const Vector2f& vec, float epsilon = Vector2f::epsilon)
+//{
+// return CompareApproximately(SqrMagnitude(vec), 1.0F, epsilon);
+//}
+//
+///// Returns the abs of every component of the vector
+//inline Vector2f Abs(const Vector2f& v) { return Vector2f(Abs(v.x), Abs(v.y)); }
+//
+//inline bool IsFinite(const Vector2f& f)
+//{
+// return IsFinite(f.x) & IsFinite(f.y);
+//}
+//
+//inline Vector2f NormalizeFast(const Vector2f& inV)
+//{
+// float m = SqrMagnitude(inV);
+// // GCC version of __frsqrte:
+// // static inline double __frsqrte (double x) {
+// // double y;
+// // asm ( "frsqrte %0, %1" : /*OUT*/ "=f" (y) : /*IN*/ "f" (x) );
+// // return y;
+// // }
+// return inV * FastInvSqrt(m);
+//}
+//
+//inline Vector2f NormalizeSafe(const Vector2f& inV, const Vector2f& defaultV)
+//{
+// float mag = Magnitude(inV);
+// if (mag > Vector2f::epsilon)
+// return inV / Magnitude(inV);
+// else
+// return defaultV;
+//}
+
#endif \ No newline at end of file