FPOINT -> Math::Point & other math functions

- changed FPOINT to Math::Point and some functions
  from math module to the new implementation
- moved old function and FPOINT struct declarations to math3d.cpp
- removed some unused functions in math module
- fixed some #include dependencies
- moved #define STRICT and #define D3D_OVERLOADS to compile options

1 files changed, 131 insertions, 27 deletions

diff --git a/src/math/old/math3d.cpp b/src/math/old/math3d.cpp
index ad380af..c9eb608 100644
--- a/src/math/old/math3d.cpp
+++ b/src/math/old/math3d.cpp
@@ -30,12 +30,116 @@
 #include "math/old/math3d.h"

 

 

+// Old defines

+#define MATH3D_PI				3.14159265358979323846f

+#define MATH3D_CHOUIA			1e-6f

+#define MATH3D_BEAUCOUP		1e6f

+

+

+// Old FPOINT struct

+struct FPOINT

+{

+	float	x;

+	float	y;

+

+	FPOINT() { }

+	FPOINT(float _x, float _y)

+	{

+		x = _x;

+		y = _y;

+	}

+};

+

+

+// === Functions already replaced by new implementation ===

+

+//>>> func.h IsEqual()

+bool		IsEqual(float a, float b);

+

+//>>> func.h Min()

+float		Min(float a, float b);

+float		Min(float a, float b, float c);

+float		Min(float a, float b, float c, float d);

+float		Min(float a, float b, float c, float d, float e);

+

+//>>> func.h Max()

+float		Max(float a, float b);

+float		Max(float a, float b, float c);

+float		Max(float a, float b, float c, float d);

+float		Max(float a, float b, float c, float d, float e);

+

+//>>> func.h Norm()

+float		Norm(float a);

+//>>> fabs()

+float		Abs(float a);

+

+//>>> func.h Swap()

+void		Swap(int &a, int &b);

+//>>> func.h Swap()

+void		Swap(float &a, float &b);

+//>>> point.h Swap()

+void		Swap(FPOINT &a, FPOINT &b);

+

+//>>> func.h Mod()

+float		Mod(float a, float m);

+//>>> func.h NormAngle()

+float		NormAngle(float angle);

+//>>> func.h TestAngle()

+bool		TestAngle(float angle, float min, float max);

+

+//>>> geometry.h RotateAngle()

+float		RotateAngle(FPOINT center, FPOINT p1, FPOINT p2);

+

+//>>> func.h Direction()

+float		Direction(float a, float g);

+

+//>>> geometry.h RotatePoint()

+FPOINT		RotatePoint(FPOINT center, float angle, FPOINT p);

+//>>> geometry.h RotatePoint()

+FPOINT		RotatePoint(float angle, FPOINT p);

+//>>> geometry.h RotatePoint()

+FPOINT		RotatePoint(float angle, float dist);

+//>>> geometry.h RotateAngle()

+float		RotateAngle(float x, float y);

+//>>> geometry.h RotatePoint()

+void		RotatePoint(float cx, float cy, float angle, float &px, float &py);

+

+//>>> geometry.h IsInsideTriangle()

+bool			IsInsideTriangle(FPOINT a, FPOINT b, FPOINT c, FPOINT p);

+

+//>>> point.h Distance()

+float		Length(FPOINT a, FPOINT b);

+

+//>>> point.h Point::Length()

+float		Length(float x, float y);

+

+//>>> func.h Rand()

+float		Rand();

+//>>> func.h Neutral()

+float		Neutral(float value, float dead);

+

+//>>> func.h PropAngle()

+float		Prop(int a, int b, float p);

+//>>> func.h Smooth()

+float		Smooth(float actual, float hope, float time);

+//>>> func.h Bounce()

+float		Bounce(float progress, float middle=0.3f, float bounce=0.4f);

+

+

+// UNUSED

+float		MidPoint(FPOINT a, FPOINT b, float px);

+

+// UNUSED

+bool		LineFunction(FPOINT p1, FPOINT p2, float &a, float &b);

+

+

+

 

 // Returns true if two numbers are nearly equal.

 

 bool IsEqual(float a, float b)

 {

-	return Abs(a-b) < CHOUIA;

+	return Abs(a-b) < MATH3D_CHOUIA;

 }

 

 

@@ -147,14 +251,14 @@ float Mod(float a, float m)
 	return a - ((int)(a/m))*m;

 }

 

-// Returns a normalized angle, that is in other words between 0 and 2 * PI.

+// Returns a normalized angle, that is in other words between 0 and 2 * MATH3D_PI.

 

 float NormAngle(float angle)

 {

-	angle = Mod(angle, PI*2.0f);

+	angle = Mod(angle, MATH3D_PI*2.0f);

 	if ( angle < 0.0f )

 	{

-		return PI*2.0f + angle;

+		return MATH3D_PI*2.0f + angle;

 	}

 	else

 	{

@@ -191,11 +295,11 @@ float Direction(float a, float g)
 

 	if ( a < g )

 	{

-		if ( a+PI*2.0f-g < g-a )  a += PI*2.0f;

+		if ( a+MATH3D_PI*2.0f-g < g-a )  a += MATH3D_PI*2.0f;

 	}

 	else

 	{

-		if ( g+PI*2.0f-a < a-g )  g += PI*2.0f;

+		if ( g+MATH3D_PI*2.0f-a < a-g )  g += MATH3D_PI*2.0f;

 	}

 	return (g-a);

 }

@@ -249,7 +353,7 @@ FPOINT RotatePoint(float angle, float dist)
 }

 

 // Calculates the angle of a right triangle.

-// The angle is counterclockwise (CCW), between 0 and 2 * PI.

+// The angle is counterclockwise (CCW), between 0 and 2 * MATH3D_PI.

 // For an angle clockwise (CW), just go ahead.

 //

 //      ^

@@ -271,25 +375,25 @@ float RotateAngle(float x, float y)
 		if ( y >= 0.0f )

 		{

 			if ( x > y )  return           atanf(y/x);

-			else          return PI*0.5f - atanf(x/y);

+			else          return MATH3D_PI*0.5f - atanf(x/y);

 		}

 		else

 		{

-			if ( x > -y )  return PI*2.0f + atanf(y/x);

-			else           return PI*1.5f - atanf(x/y);

+			if ( x > -y )  return MATH3D_PI*2.0f + atanf(y/x);

+			else           return MATH3D_PI*1.5f - atanf(x/y);

 		}

 	}

 	else

 	{

 		if ( y >= 0.0f )

 		{

-			if ( -x > y )  return PI*1.0f + atanf(y/x);

-			else           return PI*0.5f - atanf(x/y);

+			if ( -x > y )  return MATH3D_PI*1.0f + atanf(y/x);

+			else           return MATH3D_PI*0.5f - atanf(x/y);

 		}

 		else

 		{

-			if ( -x > -y )  return PI*1.0f + atanf(y/x);

-			else            return PI*1.5f - atanf(x/y);

+			if ( -x > -y )  return MATH3D_PI*1.0f + atanf(y/x);

+			else            return MATH3D_PI*1.5f - atanf(x/y);

 		}

 	}

 #else

@@ -299,11 +403,11 @@ float RotateAngle(float x, float y)
 	{

 		if ( y > 0.0f )

 		{

-			return 90.0f*PI/180.0f;

+			return 90.0f*MATH3D_PI/180.0f;

 		}

 		else

 		{

-			return 270.0f*PI/180.0f;

+			return 270.0f*MATH3D_PI/180.0f;

 		}

 	}

 	else

@@ -311,7 +415,7 @@ float RotateAngle(float x, float y)
 		angle = atanf(y/x);

 		if ( x < 0.0f )

 		{

-			angle += PI;

+			angle += MATH3D_PI;

 		}

 		return angle;

 	}

@@ -335,11 +439,11 @@ float RotateAngle(FPOINT center, FPOINT p1, FPOINT p2)
 	a1 = asinf((p1.y-center.y)/Length(p1,center));

 	a2 = asinf((p2.y-center.y)/Length(p2,center));

 

-	if ( p1.x < center.x )  a1 = PI-a1;

-	if ( p2.x < center.x )  a2 = PI-a2;

+	if ( p1.x < center.x )  a1 = MATH3D_PI-a1;

+	if ( p2.x < center.x )  a2 = MATH3D_PI-a2;

 

 	a = a2-a1;

-	if ( a < 0 )  a += PI*2;

+	if ( a < 0 )  a += MATH3D_PI*2;

 	return a;

 }

 

@@ -347,10 +451,10 @@ float RotateAngle(FPOINT center, FPOINT p1, FPOINT p2)
 

 float MidPoint(FPOINT a, FPOINT b, float px)

 {

-	if ( Abs(a.x-b.x) < CHOUIA )

+	if ( Abs(a.x-b.x) < MATH3D_CHOUIA )

 	{

-		if ( a.y < b.y )  return  BEAUCOUP;

-		else              return -BEAUCOUP;

+		if ( a.y < b.y )  return  MATH3D_BEAUCOUP;

+		else              return -MATH3D_BEAUCOUP;

 	}

 	return (b.y-a.y)*(px-a.x)/(b.x-a.x)+a.y;

 }

@@ -850,8 +954,8 @@ float Prop(int a, int b, float p)
 {

 	float	aa, bb;

 

-	aa = (float)a*PI/180.0f;

-	bb = (float)b*PI/180.0f;

+	aa = (float)a*MATH3D_PI/180.0f;

+	bb = (float)b*MATH3D_PI/180.0f;

 

 	return aa+p*(bb-aa);

 }

@@ -896,12 +1000,12 @@ float Bounce(float progress, float middle, float bounce)
 	if ( progress < middle )

 	{

 		progress = progress/middle;  // 0..1

-		return 0.5f+sinf(progress*PI-PI/2.0f)/2.0f;

+		return 0.5f+sinf(progress*MATH3D_PI-MATH3D_PI/2.0f)/2.0f;

 	}

 	else

 	{

 		progress = (progress-middle)/(1.0f-middle);  // 0..1

-		return (1.0f-bounce/2.0f)+sinf((0.5f+progress*2.0f)*PI)*(bounce/2.0f);

+		return (1.0f-bounce/2.0f)+sinf((0.5f+progress*2.0f)*MATH3D_PI)*(bounce/2.0f);

 	}

 }