/*
* Iris is a World Generator for Minecraft Bukkit Servers
* Copyright (c) 2021 Arcane Arts (Volmit Software)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see .
*/
package com.volmit.iris.util;
/**
* A 4 element tuple represented by double precision floating point
* x,y,z,w coordinates.
*/
public abstract class Tuple4d implements java.io.Serializable, Cloneable {
static final long serialVersionUID = -4748953690425311052L;
/**
* The x coordinate.
*/
public double x;
/**
* The y coordinate.
*/
public double y;
/**
* The z coordinate.
*/
public double z;
/**
* The w coordinate.
*/
public double w;
/**
* Constructs and initializes a Tuple4d from the specified xyzw coordinates.
*
* @param x the x coordinate
* @param y the y coordinate
* @param z the z coordinate
* @param w the w coordinate
*/
public Tuple4d(double x, double y, double z, double w) {
this.x = x;
this.y = y;
this.z = z;
this.w = w;
}
/**
* Constructs and initializes a Tuple4d from the coordinates contained
* in the array.
*
* @param t the array of length 4 containing xyzw in order
*/
public Tuple4d(double[] t) {
this.x = t[0];
this.y = t[1];
this.z = t[2];
this.w = t[3];
}
/**
* Constructs and initializes a Tuple4d from the specified Tuple4d.
*
* @param t1 the Tuple4d containing the initialization x y z w data
*/
public Tuple4d(Tuple4d t1) {
this.x = t1.x;
this.y = t1.y;
this.z = t1.z;
this.w = t1.w;
}
/**
* Constructs and initializes a Tuple4d from the specified Tuple4f.
*
* @param t1 the Tuple4f containing the initialization x y z w data
*/
public Tuple4d(Tuple4f t1) {
this.x = t1.x;
this.y = t1.y;
this.z = t1.z;
this.w = t1.w;
}
/**
* Constructs and initializes a Tuple4d to (0,0,0,0).
*/
public Tuple4d() {
this.x = 0.0;
this.y = 0.0;
this.z = 0.0;
this.w = 0.0;
}
/**
* Sets the value of this tuple to the specified xyzw coordinates.
*
* @param x the x coordinate
* @param y the y coordinate
* @param z the z coordinate
* @param w the w coordinate
*/
public final void set(double x, double y, double z, double w) {
this.x = x;
this.y = y;
this.z = z;
this.w = w;
}
/**
* Sets the value of this tuple to the specified xyzw coordinates.
*
* @param t the array of length 4 containing xyzw in order
*/
public final void set(double[] t) {
this.x = t[0];
this.y = t[1];
this.z = t[2];
this.w = t[3];
}
/**
* Sets the value of this tuple to the value of tuple t1.
*
* @param t1 the tuple to be copied
*/
public final void set(Tuple4d t1) {
this.x = t1.x;
this.y = t1.y;
this.z = t1.z;
this.w = t1.w;
}
/**
* Sets the value of this tuple to the value of tuple t1.
*
* @param t1 the tuple to be copied
*/
public final void set(Tuple4f t1) {
this.x = t1.x;
this.y = t1.y;
this.z = t1.z;
this.w = t1.w;
}
/**
* Gets the value of this tuple and places it into the array t of
* length four in x,y,z,w order.
*
* @param t the array of length four
*/
public final void get(double[] t) {
t[0] = this.x;
t[1] = this.y;
t[2] = this.z;
t[3] = this.w;
}
/**
* Gets the value of this tuple and places it into the Tuple4d
* argument of
* length four in x,y,z,w order.
*
* @param t the Tuple into which the values will be copied
*/
public final void get(Tuple4d t) {
t.x = this.x;
t.y = this.y;
t.z = this.z;
t.w = this.w;
}
/**
* Sets the value of this tuple to the tuple sum of tuples t1 and t2.
*
* @param t1 the first tuple
* @param t2 the second tuple
*/
public final void add(Tuple4d t1, Tuple4d t2) {
this.x = t1.x + t2.x;
this.y = t1.y + t2.y;
this.z = t1.z + t2.z;
this.w = t1.w + t2.w;
}
/**
* Sets the value of this tuple to the sum of itself and tuple t1.
*
* @param t1 the other tuple
*/
public final void add(Tuple4d t1) {
this.x += t1.x;
this.y += t1.y;
this.z += t1.z;
this.w += t1.w;
}
/**
* Sets the value of this tuple to the difference
* of tuples t1 and t2 (this = t1 - t2).
*
* @param t1 the first tuple
* @param t2 the second tuple
*/
public final void sub(Tuple4d t1, Tuple4d t2) {
this.x = t1.x - t2.x;
this.y = t1.y - t2.y;
this.z = t1.z - t2.z;
this.w = t1.w - t2.w;
}
/**
* Sets the value of this tuple to the difference of itself
* and tuple t1 (this = this - t1).
*
* @param t1 the other tuple
*/
public final void sub(Tuple4d t1) {
this.x -= t1.x;
this.y -= t1.y;
this.z -= t1.z;
this.w -= t1.w;
}
/**
* Sets the value of this tuple to the negation of tuple t1.
*
* @param t1 the source tuple
*/
public final void negate(Tuple4d t1) {
this.x = -t1.x;
this.y = -t1.y;
this.z = -t1.z;
this.w = -t1.w;
}
/**
* Negates the value of this tuple in place.
*/
public final void negate() {
this.x = -this.x;
this.y = -this.y;
this.z = -this.z;
this.w = -this.w;
}
/**
* Sets the value of this tuple to the scalar multiplication
* of the scale factor with the tuple t1.
*
* @param s the scalar value
* @param t1 the source tuple
*/
public final void scale(double s, Tuple4d t1) {
this.x = s * t1.x;
this.y = s * t1.y;
this.z = s * t1.z;
this.w = s * t1.w;
}
/**
* Sets the value of this tuple to the scalar multiplication
* of the scale factor with this.
*
* @param s the scalar value
*/
public final void scale(double s) {
this.x *= s;
this.y *= s;
this.z *= s;
this.w *= s;
}
/**
* Sets the value of this tuple to the scalar multiplication by s
* of tuple t1 plus tuple t2 (this = s*t1 + t2).
*
* @param s the scalar value
* @param t1 the tuple to be multipled
* @param t2 the tuple to be added
*/
public final void scaleAdd(double s, Tuple4d t1, Tuple4d t2) {
this.x = s * t1.x + t2.x;
this.y = s * t1.y + t2.y;
this.z = s * t1.z + t2.z;
this.w = s * t1.w + t2.w;
}
/**
* @deprecated Use scaleAdd(double,Tuple4d) instead
*/
public final void scaleAdd(float s, Tuple4d t1) {
scaleAdd((double) s, t1);
}
/**
* Sets the value of this tuple to the scalar multiplication
* of itself and then adds tuple t1 (this = s*this + t1).
*
* @param s the scalar value
* @param t1 the tuple to be added
*/
public final void scaleAdd(double s, Tuple4d t1) {
this.x = s * this.x + t1.x;
this.y = s * this.y + t1.y;
this.z = s * this.z + t1.z;
this.w = s * this.w + t1.w;
}
/**
* Returns a string that contains the values of this Tuple4d.
* The form is (x,y,z,w).
*
* @return the String representation
*/
public String toString() {
return "(" + this.x + ", " + this.y + ", " + this.z + ", " + this.w + ")";
}
/**
* Returns true if all of the data members of Tuple4d t1 are
* equal to the corresponding data members in this Tuple4d.
*
* @param t1 the tuple with which the comparison is made
* @return true or false
*/
public boolean equals(Tuple4d t1) {
try {
return (this.x == t1.x && this.y == t1.y && this.z == t1.z
&& this.w == t1.w);
} catch (NullPointerException e2) {
return false;
}
}
/**
* Returns true if the Object t1 is of type Tuple4d and all of the
* data members of t1 are equal to the corresponding data members in
* this Tuple4d.
*
* @param t1 the object with which the comparison is made
* @return true or false
*/
public boolean equals(Object t1) {
try {
Tuple4d t2 = (Tuple4d) t1;
return (this.x == t2.x && this.y == t2.y &&
this.z == t2.z && this.w == t2.w);
} catch (NullPointerException e2) {
return false;
} catch (ClassCastException e1) {
return false;
}
}
/**
* Returns true if the L-infinite distance between this tuple
* and tuple t1 is less than or equal to the epsilon parameter,
* otherwise returns false. The L-infinite
* distance is equal to
* MAX[abs(x1-x2), abs(y1-y2), abs(z1-z2), abs(w1-w2)].
*
* @param t1 the tuple to be compared to this tuple
* @param epsilon the threshold value
* @return true or false
*/
public boolean epsilonEquals(Tuple4d t1, double epsilon) {
double diff;
diff = x - t1.x;
if (Double.isNaN(diff)) return false;
if ((diff < 0 ? -diff : diff) > epsilon) return false;
diff = y - t1.y;
if (Double.isNaN(diff)) return false;
if ((diff < 0 ? -diff : diff) > epsilon) return false;
diff = z - t1.z;
if (Double.isNaN(diff)) return false;
if ((diff < 0 ? -diff : diff) > epsilon) return false;
diff = w - t1.w;
if (Double.isNaN(diff)) return false;
return !((diff < 0 ? -diff : diff) > epsilon);
}
/**
* Returns a hash code value based on the data values in this
* object. Two different Tuple4d objects with identical data values
* (i.e., Tuple4d.equals returns true) will return the same hash
* code value. Two objects with different data members may return the
* same hash value, although this is not likely.
*
* @return the integer hash code value
*/
public int hashCode() {
long bits = 1L;
bits = 31L * bits + VecMathUtil.doubleToLongBits(x);
bits = 31L * bits + VecMathUtil.doubleToLongBits(y);
bits = 31L * bits + VecMathUtil.doubleToLongBits(z);
bits = 31L * bits + VecMathUtil.doubleToLongBits(w);
return (int) (bits ^ (bits >> 32));
}
/**
* @deprecated Use clamp(double,double,Tuple4d) instead
*/
public final void clamp(float min, float max, Tuple4d t) {
clamp(min, (double) max, t);
}
/**
* Clamps the tuple parameter to the range [low, high] and
* places the values into this tuple.
*
* @param min the lowest value in the tuple after clamping
* @param max the highest value in the tuple after clamping
* @param t the source tuple, which will not be modified
*/
public final void clamp(double min, double max, Tuple4d t) {
if (t.x > max) {
x = max;
} else if (t.x < min) {
x = min;
} else {
x = t.x;
}
if (t.y > max) {
y = max;
} else if (t.y < min) {
y = min;
} else {
y = t.y;
}
if (t.z > max) {
z = max;
} else if (t.z < min) {
z = min;
} else {
z = t.z;
}
if (t.w > max) {
w = max;
} else if (t.w < min) {
w = min;
} else {
w = t.w;
}
}
/**
* @deprecated Use clampMin(double,Tuple4d) instead
*/
public final void clampMin(float min, Tuple4d t) {
clampMin((double) min, t);
}
/**
* Clamps the minimum value of the tuple parameter to the min
* parameter and places the values into this tuple.
*
* @param min the lowest value in the tuple after clamping
* @param t the source tuple, which will not be modified
*/
public final void clampMin(double min, Tuple4d t) {
if (t.x < min) {
x = min;
} else {
x = t.x;
}
if (t.y < min) {
y = min;
} else {
y = t.y;
}
if (t.z < min) {
z = min;
} else {
z = t.z;
}
if (t.w < min) {
w = min;
} else {
w = t.w;
}
}
/**
* @deprecated Use clampMax(double,Tuple4d) instead
*/
public final void clampMax(float max, Tuple4d t) {
clampMax((double) max, t);
}
/**
* Clamps the maximum value of the tuple parameter to the max
* parameter and places the values into this tuple.
*
* @param max the highest value in the tuple after clamping
* @param t the source tuple, which will not be modified
*/
public final void clampMax(double max, Tuple4d t) {
if (t.x > max) {
x = max;
} else {
x = t.x;
}
if (t.y > max) {
y = max;
} else {
y = t.y;
}
if (t.z > max) {
z = max;
} else {
z = t.z;
}
if (t.w > max) {
w = max;
} else {
w = t.z;
}
}
/**
* Sets each component of the tuple parameter to its absolute
* value and places the modified values into this tuple.
*
* @param t the source tuple, which will not be modified
*/
public final void absolute(Tuple4d t) {
x = Math.abs(t.x);
y = Math.abs(t.y);
z = Math.abs(t.z);
w = Math.abs(t.w);
}
/**
* @deprecated Use clamp(double,double) instead
*/
public final void clamp(float min, float max) {
clamp(min, (double) max);
}
/**
* Clamps this tuple to the range [low, high].
*
* @param min the lowest value in this tuple after clamping
* @param max the highest value in this tuple after clamping
*/
public final void clamp(double min, double max) {
if (x > max) {
x = max;
} else if (x < min) {
x = min;
}
if (y > max) {
y = max;
} else if (y < min) {
y = min;
}
if (z > max) {
z = max;
} else if (z < min) {
z = min;
}
if (w > max) {
w = max;
} else if (w < min) {
w = min;
}
}
/**
* @deprecated Use clampMin(double) instead
*/
public final void clampMin(float min) {
clampMin((double) min);
}
/**
* Clamps the minimum value of this tuple to the min parameter.
*
* @param min the lowest value in this tuple after clamping
*/
public final void clampMin(double min) {
if (x < min) x = min;
if (y < min) y = min;
if (z < min) z = min;
if (w < min) w = min;
}
/**
* @deprecated Use clampMax(double) instead
*/
public final void clampMax(float max) {
clampMax((double) max);
}
/**
* Clamps the maximum value of this tuple to the max parameter.
*
* @param max the highest value in the tuple after clamping
*/
public final void clampMax(double max) {
if (x > max) x = max;
if (y > max) y = max;
if (z > max) z = max;
if (w > max) w = max;
}
/**
* Sets each component of this tuple to its absolute value.
*/
public final void absolute() {
x = Math.abs(x);
y = Math.abs(y);
z = Math.abs(z);
w = Math.abs(w);
}
/**
* @deprecated Use interpolate(Tuple4d,Tuple4d,double) instead
*/
public void interpolate(Tuple4d t1, Tuple4d t2, float alpha) {
interpolate(t1, t2, (double) alpha);
}
/**
* Linearly interpolates between tuples t1 and t2 and places the
* result into this tuple: this = (1-alpha)*t1 + alpha*t2.
*
* @param t1 the first tuple
* @param t2 the second tuple
* @param alpha the alpha interpolation parameter
*/
public void interpolate(Tuple4d t1, Tuple4d t2, double alpha) {
this.x = (1 - alpha) * t1.x + alpha * t2.x;
this.y = (1 - alpha) * t1.y + alpha * t2.y;
this.z = (1 - alpha) * t1.z + alpha * t2.z;
this.w = (1 - alpha) * t1.w + alpha * t2.w;
}
/**
* @deprecated Use interpolate(Tuple4d,double) instead
*/
public void interpolate(Tuple4d t1, float alpha) {
interpolate(t1, (double) alpha);
}
/**
* Linearly interpolates between this tuple and tuple t1 and
* places the result into this tuple: this = (1-alpha)*this + alpha*t1.
*
* @param t1 the first tuple
* @param alpha the alpha interpolation parameter
*/
public void interpolate(Tuple4d t1, double alpha) {
this.x = (1 - alpha) * this.x + alpha * t1.x;
this.y = (1 - alpha) * this.y + alpha * t1.y;
this.z = (1 - alpha) * this.z + alpha * t1.z;
this.w = (1 - alpha) * this.w + alpha * t1.w;
}
/**
* Creates a new object of the same class as this object.
*
* @return a clone of this instance.
* @throws OutOfMemoryError if there is not enough memory.
* @see java.lang.Cloneable
* @since vecmath 1.3
*/
public Object clone() {
// Since there are no arrays we can just use Object.clone()
try {
return super.clone();
} catch (CloneNotSupportedException e) {
// this shouldn't happen, since we are Cloneable
throw new InternalError();
}
}
/**
* Get the x coordinate.
*
* @return the x coordinate.
* @since vecmath 1.5
*/
public final double getX() {
return x;
}
/**
* Set the x coordinate.
*
* @param x value to x coordinate.
* @since vecmath 1.5
*/
public final void setX(double x) {
this.x = x;
}
/**
* Get the y coordinate.
*
* @return the y coordinate.
* @since vecmath 1.5
*/
public final double getY() {
return y;
}
/**
* Set the y coordinate.
*
* @param y value to y coordinate.
* @since vecmath 1.5
*/
public final void setY(double y) {
this.y = y;
}
/**
* Get the z coordinate.
*
* @return the z coordinate.
* @since vecmath 1.5
*/
public final double getZ() {
return z;
}
/**
* Set the z coordinate.
*
* @param z value to z coordinate.
* @since vecmath 1.5
*/
public final void setZ(double z) {
this.z = z;
}
/**
* Get the w coordinate.
*
* @return the w coordinate.
* @since vecmath 1.5
*/
public final double getW() {
return w;
}
/**
* Set the w coordinate.
*
* @param w value to w coordinate.
* @since vecmath 1.5
*/
public final void setW(double w) {
this.w = w;
}
}