Mega Code Archive
Vector3
<![CDATA[
//package dkgles.math;
import org.xml.sax.Attributes;
import android.util.FloatMath;
class Vector3 implements Cloneable
{
public float x;
public float y;
public float z;
public Vector3()
{
x = 0.0f;
y = 0.0f;
z = 0.0f;
}
public Vector3(float x, float y, float z)
{
this.x = x;
this.y = y;
this.z = z;
}
public Vector3 add(Vector3 rhs)
{
return new Vector3(
this.x + rhs.x, this.y + rhs.y, this.z + rhs.z);
}
public Vector3 sub(Vector3 rhs)
{
return new Vector3(
this.x - rhs.x, this.y - rhs.y, this.z - rhs.z);
}
public void subFromSelf(Vector3 rhs)
{
x -= rhs.x;
y -= rhs.y;
x -= rhs.z;
}
public void normalize()
{
float l = length();
x /= l;
y /= l;
z /= l;
}
public float length()
{
return FloatMath.sqrt(x*x + y*y + z*z);
}
public Vector3 mul(float fScaler)
{
return new Vector3(
x*fScaler, y*fScaler, z*fScaler);
}
public void copy(Vector3 rhs)
{
x = rhs.x;
y = rhs.y;
z = rhs.z;
}
public void mulSelf(float fScaler)
{
x *= fScaler;
y *= fScaler;
z *= fScaler;
}
public Vector3 crossProduct(Vector3 rhs)
{
return new Vector3(
y*rhs.z - z*rhs.y,
z*rhs.x - x*rhs.z,
x*rhs.y - y*rhs.x);
}
public float dot(Vector3 rhs)
{
return x*rhs.x + y*rhs.y + z*rhs.z;
}
public Object clone()
{
return new Vector3(x, y, z);
}
public String toString()
{
StringBuilder result = new StringBuilder();
result.append("(" + x + ", " + y + ", " + z + ")" );
return result.toString();
}
}
]]>