vec2 & rect code cleanup

include/blah.h

@@ -45,6 +45,7 @@
 #include "blah/math/rectI.h"
 #include "blah/math/stopwatch.h"
 #include "blah/math/vec2.h"
+#include "blah/math/vec3.h"
 #include "blah/math/vec4.h"
 	
 #include "blah/streams/bufferstream.h"

include/blah/core/log.h

@@ -1,7 +1,7 @@
 #pragma once
 
 // error / abort
-#ifdef DEBUG
+#if defined(DEBUG) || defined(_DEBUG)
 
 	#include <stdlib.h>
 	#define BLAH_ERROR(message) \

include/blah/math/rectI.h

@@ -17,12 +17,12 @@ namespace Blah
 		RectI(int rx, int ry, int rw, int rh);
 		RectI(Point pos, Point size);
 
-		int left() const { return x; }
-		int right() const { return x + w; }
-		int top() const { return y; }
-		int bottom() const { return y + h; }
-		int centerX() const { return x + w / 2; }
-		int centerY() const { return y + h / 2; }
+		int left() const;
+		int right() const;
+		int top() const;
+		int bottom() const;
+		int center_x() const;
+		int center_y() const;
 
 		Point center() const;
 		Point top_left() const;
@@ -30,14 +30,7 @@ namespace Blah
 		Point bottom_left() const;
 		Point bottom_right() const;
 
-		bool overlaps(const RectI& other) const
-		{
-			return x < other.x + other.w
-				&& other.x < x + w
-				&& y < other.y + other.h
-				&& other.y < y + h;
-		}
-
+		bool overlaps(const RectI& other) const;
 		bool contains(const Point& pt) const;
 		bool contains(const Vec2& pt) const;
 
@@ -51,14 +44,14 @@ namespace Blah
 		char get_sector(const Point& pt) const;
 		char get_sector(const Vec2& pt) const;
 
-		bool operator==(const RectI& rhs) const { return x == rhs.x && y == rhs.y && w == rhs.w && h == rhs.h; }
-		bool operator!=(const RectI& rhs) const { return !(*this == rhs); }
+		bool operator==(const RectI& rhs) const;
+		bool operator!=(const RectI& rhs) const;
 
 		RectI operator+(const Point& rhs) const;
 		RectI operator-(const Point& rhs) const;
+		RectI operator*(const int& rhs) const;
+		RectI operator/(const int& rhs) const;
 		RectI& operator+=(const Point& rhs);
 		RectI& operator-=(const Point& rhs);
-
-		RectI operator*(const int& rhs) const { return RectI(x * rhs, y * rhs, w * rhs, h * rhs); }
 	};
 }

include/blah/math/vec2.h

@@ -34,38 +34,107 @@ namespace Blah
 		bool operator ==(const Vec2& rhs) const;
 		bool operator !=(const Vec2& rhs) const;
 
+		// Returns the absolute value of the Vector
+		Vec2 abs() const;
+
+		// Returns the Normalized Vector
+		// If the length is 0, the resulting Vector is 0,0
 		Vec2 normal() const;
+
+		// Rotates the Vector 90 degrees right (y, -x)
 		Vec2 turn_right() const;
+
+		// Rotates the Vector 90 degrees left (-y, x)
 		Vec2 turn_left() const;
+
+		// Returns the length of the Vector
 		float length() const;
+
+		// Returns the squared length of the Vector
 		float length_squared() const;
+
+		// Gets the perpendicular Vector (-y, x)
 		Vec2 perpendicular() const;
+
+		// Gets the angle, in radians, of the Vector
 		float angle() const;
 		
+		// Calculates the Dot Product between two vectors
 		static float dot(Vec2 a, Vec2 b);
+
+		// Calculates the Dot Product between two vectors
 		static float dot(float x, float y, Vec2 b);
+
+		// Calculates the Dot Product between two vectors
 		static float dot(float x1, float y1, float x2, float y2);
 
+		// Transforms a Vector by the given Matrix
 		static Vec2 transform(const Vec2& vec, const Mat3x2& matrix);
+
+		// Transforms a Vector by the given Matrix
 		static Vec2 transform(float x, float y, const Mat3x2& matrix);
-		static Vec2 from_angle(float radians, float length);
-		static Vec2 from_angle(float radians);
+
+		// Transforms a Vector Normal by the given Matrix
+		static Vec2 transform_normal(const Vec2& vec, const Mat3x2& matrix);
+
+		// Transforms a Vector Normal by the given Matrix
+		static Vec2 transform_normal(float x, float y, const Mat3x2& matrix);
+
+		// Calculates a Vector value from the given radians
+		static Vec2 from_angle(float radians, float length = 1.0f);
+
+		// Lerps between two Vectors
 		static Vec2 lerp(Vec2 start, Vec2 end, float t);
-		static Vec2 bezier_lerp(Vec2 start, Vec2 b, Vec2 end, float t);
-		static Vec2 bezier_lerp(Vec2 start, Vec2 b, Vec2 c, Vec2 end, float t);
+
+		// Lerps between two Vectors along a Bezier curve
+		static Vec2 lerp_bezier(Vec2 start, Vec2 b, Vec2 end, float t);
+
+		// Lerps between two Vectors along a Bezier curve
+		static Vec2 lerp_bezier(Vec2 start, Vec2 b, Vec2 c, Vec2 end, float t);
+
+		// Reflects a vector along the given Normal
 		static Vec2 reflect(const Vec2& vector, const Vec2& normal);
 
+		// Gets the minimum between two vectors
+		static Vec2 min(const Vec2& a, const Vec2& b);
+
+		// Gets the maximum between two vectors
+		static Vec2 max(const Vec2& a, const Vec2& b);
+
+		// (1, 0)
 		static const Vec2 unit_x;
+
+		// (0, 1)
 		static const Vec2 unit_y;
+
+		// (1, 0)
 		static const Vec2 right;
+
+		// (0, -1)
 		static const Vec2 up;
+
+		// (0, 1)
 		static const Vec2 down;
+
+		// (-1, 0)
 		static const Vec2 left;
+
+		// (0, 0)
 		static const Vec2 zero;
+
+		// (1, 1)
 		static const Vec2 one;
+
+		// (0.707, -0.707)
 		static const Vec2 up_right;
+
+		// (-0.707, -0.707)
 		static const Vec2 up_left;
+
+		// (0.707, 0.707)
 		static const Vec2 down_right;
+
+		// (-0.707, 0.707)
 		static const Vec2 down_left;
 	};
 	

src/drawing/batch.cpp

@@ -507,7 +507,7 @@ void Batch::bezier_line(const Vec2& from, const Vec2& b, const Vec2& to, int ste
 
 	for (int i = 1; i < steps; i++)
 	{
-		Vec2 at = Vec2::bezier_lerp(from, b, to, add * i);
+		Vec2 at = Vec2::lerp_bezier(from, b, to, add * i);
 		line(prev, at, t, color);
 		prev = at;
 	}
@@ -522,7 +522,7 @@ void Batch::bezier_line(const Vec2& from, const Vec2& b, const Vec2& c, const Ve
 
 	for (int i = 1; i < steps; i++)
 	{
-		Vec2 at = Vec2::bezier_lerp(from, b, c, to, add * i);
+		Vec2 at = Vec2::lerp_bezier(from, b, c, to, add * i);
 		line(prev, at, t, color);
 		prev = at;
 	}
@@ -668,8 +668,8 @@ void Batch::rect_rounded(const Rect& rect, float rtl, int rtl_steps, float rtr,
 	{
 		// get corners
 		Rect tl = Rect(rect.top_left(), Vec2(rtl, rtl));
-		Rect tr = Rect(rect.top_right() + Vec2(-rtr, 0), Vec2(rtr, rtr));
-		Rect bl = Rect(rect.bottom_left() + Vec2(0, -rbl), Vec2(rbl, rbl));
+		Rect tr = Rect(rect.top_right() + Vec2(-rtr, 0.0f), Vec2(rtr, rtr));
+		Rect bl = Rect(rect.bottom_left() + Vec2(0.0f, -rbl), Vec2(rbl, rbl));
 		Rect br = Rect(rect.bottom_right() + Vec2(-rbr, -rbr), Vec2(rbr, rbr));
 
 		// rounded corners

src/math/rectI.cpp

@@ -26,11 +26,68 @@ RectI::RectI(Point pos, Point size)
 	h = size.y;
 }
 
-Point RectI::center() const { return Point(centerX(), centerY()); }
-Point RectI::top_left() const { return Point(left(), top()); }
-Point RectI::top_right() const { return Point(right(), top()); }
-Point RectI::bottom_left() const { return Point(left(), bottom()); }
-Point RectI::bottom_right() const { return Point(right(), bottom()); }
+int RectI::left() const
+{
+	return x;
+}
+
+int RectI::right() const
+{
+	return x + w;
+}
+
+int RectI::top() const
+{
+	return y;
+}
+
+int RectI::bottom() const
+{
+	return y + h;
+}
+
+int RectI::center_x() const
+{
+	return x + w / 2;
+}
+
+int RectI::center_y() const
+{
+	return y + h / 2;
+}
+
+Point RectI::center() const
+{
+	return Point(x + w / 2, y + h / 2);
+}
+
+Point RectI::top_left() const
+{
+	return Point(x, y);
+}
+
+Point RectI::top_right() const
+{
+	return Point(x + w, y);
+}
+
+Point RectI::bottom_left() const
+{
+	return Point(x, y + h);
+}
+
+Point RectI::bottom_right() const
+{
+	return Point(x + w, y + h);
+}
+
+bool RectI::overlaps(const RectI& other) const
+{
+	return x < other.x + other.w
+		&& other.x < x + w
+		&& y < other.y + other.h
+		&& other.y < y + h;
+}
 
 bool RectI::contains(const Point& point) const
 {
@@ -84,7 +141,42 @@ char RectI::get_sector(const Vec2& pt) const
 	return h | v;
 }
 
-RectI RectI::operator+(const Point& rhs) const { return RectI(x + rhs.x, y + rhs.y, w, h); }
-RectI RectI::operator-(const Point& rhs) const { return RectI(x - rhs.x, y - rhs.y, w, h); }
-RectI& RectI::operator+=(const Point& rhs) { x += rhs.x; y += rhs.y; return *this; }
-RectI& RectI::operator-=(const Point& rhs) { x -= rhs.x; y -= rhs.y; return *this; }
+bool RectI::operator==(const RectI& rhs) const
+{
+	return x == rhs.x && y == rhs.y && w == rhs.w && h == rhs.h;
+}
+
+bool RectI::operator!=(const RectI& rhs) const
+{
+	return !(*this == rhs);
+}
+
+RectI RectI::operator+(const Point& rhs) const
+{
+	return RectI(x + rhs.x, y + rhs.y, w, h);
+}
+
+RectI RectI::operator-(const Point& rhs) const
+{
+	return RectI(x - rhs.x, y - rhs.y, w, h);
+}
+
+RectI RectI::operator*(const int& rhs) const
+{
+	return RectI(x * rhs, y * rhs, w * rhs, h * rhs);
+}
+
+RectI RectI::operator/(const int& rhs) const
+{
+	return RectI(x / rhs, y / rhs, w / rhs, h / rhs);
+}
+
+RectI& RectI::operator+=(const Point& rhs)
+{
+	x += rhs.x; y += rhs.y; return *this;
+}
+
+RectI& RectI::operator-=(const Point& rhs)
+{
+	x -= rhs.x; y -= rhs.y; return *this;
+}

src/math/vec2.cpp

@@ -5,28 +5,100 @@
 
 using namespace Blah;
 
-Vec2::Vec2() { x = y = 0; }
-Vec2::Vec2(float vx, float vy) { x = vx; y = vy; }
-Vec2::Vec2(int vx, float vy) { x = (float)vx; y = vy; }
-Vec2::Vec2(float vx, int vy) { x = vx; y = (float)vy; }
-Vec2::Vec2(int vx, int vy) { x = (float)vx; y = (float)vy; }
-Vec2::Vec2(Point p) { x = (float)p.x; y = (float)p.y; }
+Vec2::Vec2() 
+	: x(0)
+	, y(0)
+{}
 
-Vec2 Vec2::operator +(const Vec2 rhs) const { return Vec2(x + rhs.x, y + rhs.y); }
-Vec2 Vec2::operator -(const Vec2 rhs) const { return Vec2(x - rhs.x, y - rhs.y); }
-Vec2 Vec2::operator /(const float rhs) const { return Vec2(x / rhs, y / rhs); }
-Vec2 Vec2::operator *(const float rhs) const { return Vec2(x * rhs, y * rhs); }
-Vec2 Vec2::operator-() const { return Vec2(-x, -y); }
+Vec2::Vec2(float vx, float vy)
+	: x(vx)
+	, y(vy)
+{}
 
-Vec2& Vec2::operator +=(const Vec2& rhs) { x += rhs.x; y += rhs.y; return *this; }
-Vec2& Vec2::operator -=(const Vec2& rhs) { x -= rhs.x; y -= rhs.y; return *this; }
-Vec2& Vec2::operator /=(const Vec2& rhs) { x /= rhs.x; y /= rhs.y; return *this; }
-Vec2& Vec2::operator *=(const Vec2& rhs) { x *= rhs.x; y *= rhs.y; return *this; }
-Vec2& Vec2::operator/=(float rhs) { x /= rhs; y /= rhs; return *this; }
-Vec2& Vec2::operator*=(float rhs) { x *= rhs; y *= rhs; return *this; }
+Vec2::Vec2(int vx, float vy)
+	: x(static_cast<float>(vx))
+	, y(vy)
+{}
 
-bool Vec2::operator ==(const Vec2& rhs) const { return x == rhs.x && y == rhs.y; }
-bool Vec2::operator !=(const Vec2& rhs) const { return x != rhs.x || y != rhs.y; }
+Vec2::Vec2(float vx, int vy)
+	: x(vx)
+	, y(static_cast<float>(vy))
+{}
+
+Vec2::Vec2(int vx, int vy)
+	: x(static_cast<float>(vx))
+	, y(static_cast<float>(vy))
+{}
+
+Vec2::Vec2(Point p)
+	: x(static_cast<float>(p.x))
+	, y(static_cast<float>(p.y))
+{}
+
+Vec2 Vec2::operator +(const Vec2 rhs) const
+{
+	return Vec2(x + rhs.x, y + rhs.y);
+}
+
+Vec2 Vec2::operator -(const Vec2 rhs) const
+{
+	return Vec2(x - rhs.x, y - rhs.y);
+}
+
+Vec2 Vec2::operator /(const float rhs) const
+{
+	return Vec2(x / rhs, y / rhs);
+}
+
+Vec2 Vec2::operator *(const float rhs) const
+{
+	return Vec2(x * rhs, y * rhs);
+}
+
+Vec2 Vec2::operator-() const
+{
+	return Vec2(-x, -y);
+}
+
+Vec2& Vec2::operator +=(const Vec2& rhs)
+{
+	x += rhs.x; y += rhs.y; return *this;
+}
+
+Vec2& Vec2::operator -=(const Vec2& rhs)
+{
+	x -= rhs.x; y -= rhs.y; return *this;
+}
+
+Vec2& Vec2::operator /=(const Vec2& rhs)
+{
+	x /= rhs.x; y /= rhs.y; return *this;
+}
+
+Vec2& Vec2::operator *=(const Vec2& rhs)
+{
+	x *= rhs.x; y *= rhs.y; return *this;
+}
+
+Vec2& Vec2::operator/=(float rhs)
+{
+	x /= rhs; y /= rhs; return *this;
+}
+
+Vec2& Vec2::operator*=(float rhs)
+{
+	x *= rhs; y *= rhs; return *this;
+}
+
+bool Vec2::operator ==(const Vec2& rhs) const
+{
+	return x == rhs.x && y == rhs.y;
+}
+
+bool Vec2::operator !=(const Vec2& rhs) const
+{
+	return x != rhs.x || y != rhs.y;
+}
 
 Vec2 Vec2::normal() const
 {
@@ -46,8 +118,15 @@ Vec2 Vec2::turn_left() const
 	return Vec2(-y, x);
 }
 
-float Vec2::length() const { return sqrtf(x * x + y * y); }
-float Vec2::length_squared() const { return x * x + y * y; }
+float Vec2::length() const
+{
+	return sqrtf(x * x + y * y);
+}
+
+float Vec2::length_squared() const
+{
+	return x * x + y * y;
+}
 
 Vec2 Vec2::perpendicular() const
 {
@@ -59,9 +138,20 @@ float Vec2::angle() const
 	return Calc::atan2(y, x);
 }
 
-float Vec2::dot(Vec2 a, Vec2 b) { return (a.x * b.x + a.y * b.y); }
-float Vec2::dot(float x, float y, Vec2 b) { return (x * b.x + y * b.y); }
-float Vec2::dot(float x1, float y1, float x2, float y2) { return (x1 * x2 + y1 * y2); }
+float Vec2::dot(Vec2 a, Vec2 b)
+{
+	return (a.x * b.x + a.y * b.y);
+}
+
+float Vec2::dot(float x, float y, Vec2 b)
+{
+	return (x * b.x + y * b.y);
+}
+
+float Vec2::dot(float x1, float y1, float x2, float y2)
+{
+	return (x1 * x2 + y1 * y2);
+}
 
 Vec2 Vec2::transform(const Vec2& vec, const Mat3x2& matrix)
 {
@@ -77,16 +167,25 @@ Vec2 Vec2::transform(float x, float y, const Mat3x2& matrix)
 		(x * matrix.m12) + (y * matrix.m22) + matrix.m32);
 }
 
+Vec2 transform_normal(const Vec2& vec, const Mat3x2& matrix)
+{
+	return Vec2(
+		vec.x * matrix.m11 + vec.y * matrix.m21,
+		vec.x * matrix.m12 + vec.y * matrix.m22);
+}
+
+Vec2 transform_normal(float x, float y, const Mat3x2& matrix)
+{
+	return Vec2(
+		x * matrix.m11 + y * matrix.m21,
+		x * matrix.m12 + y * matrix.m22);
+}
+
 Vec2 Vec2::from_angle(float radians, float length)
 {
 	return Vec2((float)cos(radians) * length, (float)sin(radians) * length);
 }
 
-Vec2 Vec2::from_angle(float radians)
-{
-	return from_angle(radians, 1);
-}
-
 Vec2 Vec2::lerp(Vec2 a, Vec2 b, float t)
 {
 	if (t == 0)
@@ -97,14 +196,14 @@ Vec2 Vec2::lerp(Vec2 a, Vec2 b, float t)
 		return a + (b - a) * t;
 }
 
-Vec2 Vec2::bezier_lerp(Vec2 start, Vec2 b, Vec2 end, float t)
+Vec2 Vec2::lerp_bezier(Vec2 start, Vec2 b, Vec2 end, float t)
 {
 	return lerp(lerp(start, b, t), lerp(b, end, t), t);
 }
 
-Vec2 Vec2::bezier_lerp(Vec2 start, Vec2 b, Vec2 c, Vec2 end, float t)
+Vec2 Vec2::lerp_bezier(Vec2 start, Vec2 b, Vec2 c, Vec2 end, float t)
 {
-	return bezier_lerp(lerp(start, b, t), lerp(b, c, t), lerp(c, end, t), t);
+	return lerp_bezier(lerp(start, b, t), lerp(b, c, t), lerp(c, end, t), t);
 }
 
 Vec2 Vec2::reflect(const Vec2& vector, const Vec2& normal)
@@ -116,6 +215,20 @@ Vec2 Vec2::reflect(const Vec2& vector, const Vec2& normal)
 		vector.y - 2.0f * dot * normal.y);
 }
 
+Vec2 Vec2::min(const Vec2& a, const Vec2& b)
+{
+	return Vec2(
+		a.x < b.x ? a.x : b.x,
+		a.y < b.y ? a.y : b.y);
+}
+
+Vec2 Vec2::max(const Vec2& a, const Vec2& b)
+{
+	return Vec2(
+		a.x > b.x ? a.x : b.x,
+		a.y > b.y ? a.y : b.y);
+}
+
 const Vec2 Vec2::unit_x = Vec2(1, 0);
 const Vec2 Vec2::unit_y = Vec2(0, 1);
 const Vec2 Vec2::right = Vec2(1, 0);