svn -> git Migration

utils/deprecated/apathing/gpoint.cpp

@@ -0,0 +1,113 @@
+#include <math.h>
+#include <stdio.h>
+#include "gpoint.h"
+
+
+GPoint::GPoint() {
+	x = 0;
+	y = 0;
+	z = 0;
+}
+
+GPoint::GPoint(VERTEX &v) {
+	x = v.x;
+	y = v.y;
+	z = v.z;
+}
+
+GPoint::GPoint(float ix, float iy, float iz) {
+	x = ix;
+	y = iy;
+	z = iz;
+}
+
+GPoint::GPoint(const GPoint &them) {
+	x = them.x;
+	y = them.y;
+	z = them.z;
+}
+
+//dot of x,y,z
+float GPoint::dot3(const GPoint &them) const {
+	return((x * them.x) + (y * them.y) +
+			 (z * them.z));
+}
+
+//cross product
+GPoint GPoint::cross(const GPoint &them) const {
+	return(GPoint(y * them.z - z * them.y,
+					 z * them.x - x * them.z,
+					 x * them.y - y * them.x));
+}
+
+
+const GPoint &GPoint::operator+=(const GPoint &them) {
+	x += them.x;
+	y += them.y;
+	z += them.z;
+	return(*this);
+}
+const GPoint &GPoint::operator*=(const float num) {
+	x *= num;
+	y *= num;
+	z *= num;
+	return(*this);
+}
+
+GPoint operator-(const GPoint &v1, const GPoint &v2) {
+	return(GPoint(v1.x - v2.x, v1.y - v2.y, v1.z - v2.z));
+}
+
+//ordering on X only
+bool operator<(const GPoint &v1, const GPoint &v2) {
+	return(v1.x < v2.x);
+}
+
+//ordering on X only
+bool operator>(const GPoint &v1, const GPoint &v2) {
+	return(v1.x > v2.x);
+}
+
+
+GVector::GVector() : GPoint() {
+	W = 0;
+}
+
+GVector::GVector(const GPoint &them) : GPoint(them) {
+	W = 1.0f;
+}
+
+GVector::GVector(const GPoint &from, const GPoint &to)
+: GPoint(to.x - from.x, to.y - from.y, to.z - from.z)
+{
+	W = 1.0f;
+}
+
+GVector::GVector(float x, float y, float z, float w) : GPoint(x, y, z) {
+	W = w;
+}
+
+//dot product of x,y,z,w
+float GVector::dot4(const GVector &them) const {
+	return((x * them.x) + (y * them.y) +
+			 (z * them.z) + (W * them.W));
+}
+
+//dot product of x,y,z+w
+float GVector::dot4(const GPoint &them) const {
+	return((x * them.x) + (y * them.y) +
+			 (z * them.z) + W);
+}
+
+float GVector::length() {
+	return(sqrt((x * x) + (y * y) + (z * z)));
+}
+
+void GVector::normalize() {
+	float len = length();	//stupid square roots take forever
+	x /= len;
+	y /= len;
+	z /= len;
+}
+
+