001/* 002Copyright 2006 Jerry Huxtable 003 004Licensed under the Apache License, Version 2.0 (the "License"); 005you may not use this file except in compliance with the License. 006You may obtain a copy of the License at 007 008 http://www.apache.org/licenses/LICENSE-2.0 009 010Unless required by applicable law or agreed to in writing, software 011distributed under the License is distributed on an "AS IS" BASIS, 012WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013See the License for the specific language governing permissions and 014limitations under the License. 015*/ 016 017package com.jhlabs.vecmath; 018 019/** 020 * Vector math package, converted to look similar to javax.vecmath. 021 */ 022public class Tuple4f { 023 public float x, y, z, w; 024 025 public Tuple4f() { 026 this( 0, 0, 0, 0 ); 027 } 028 029 public Tuple4f( float[] x ) { 030 this.x = x[0]; 031 this.y = x[1]; 032 this.z = x[2]; 033 this.w = x[2]; 034 } 035 036 public Tuple4f( float x, float y, float z, float w ) { 037 this.x = x; 038 this.y = y; 039 this.z = z; 040 this.w = w; 041 } 042 043 public Tuple4f( Tuple4f t ) { 044 this.x = t.x; 045 this.y = t.y; 046 this.z = t.z; 047 this.w = t.w; 048 } 049 050 public void absolute() { 051 x = Math.abs(x); 052 y = Math.abs(y); 053 z = Math.abs(z); 054 w = Math.abs(w); 055 } 056 057 public void absolute( Tuple4f t ) { 058 x = Math.abs(t.x); 059 y = Math.abs(t.y); 060 z = Math.abs(t.z); 061 w = Math.abs(t.w); 062 } 063 064 public void clamp( float min, float max ) { 065 if ( x < min ) 066 x = min; 067 else if ( x > max ) 068 x = max; 069 if ( y < min ) 070 y = min; 071 else if ( y > max ) 072 y = max; 073 if ( z < min ) 074 z = min; 075 else if ( z > max ) 076 z = max; 077 if ( w < min ) 078 w = min; 079 else if ( w > max ) 080 w = max; 081 } 082 083 public void set( float x, float y, float z, float w ) { 084 this.x = x; 085 this.y = y; 086 this.z = z; 087 this.w = w; 088 } 089 090 public void set( float[] x ) { 091 this.x = x[0]; 092 this.y = x[1]; 093 this.z = x[2]; 094 this.w = x[2]; 095 } 096 097 public void set( Tuple4f t ) { 098 x = t.x; 099 y = t.y; 100 z = t.z; 101 w = t.w; 102 } 103 104 public void get( Tuple4f t ) { 105 t.x = x; 106 t.y = y; 107 t.z = z; 108 t.w = w; 109 } 110 111 public void get( float[] t ) { 112 t[0] = x; 113 t[1] = y; 114 t[2] = z; 115 t[3] = w; 116 } 117 118 public void negate() { 119 x = -x; 120 y = -y; 121 z = -z; 122 w = -w; 123 } 124 125 public void negate( Tuple4f t ) { 126 x = -t.x; 127 y = -t.y; 128 z = -t.z; 129 w = -t.w; 130 } 131 132 public void interpolate( Tuple4f t, float alpha ) { 133 float a = 1-alpha; 134 x = a*x + alpha*t.x; 135 y = a*y + alpha*t.y; 136 z = a*z + alpha*t.z; 137 w = a*w + alpha*t.w; 138 } 139 140 public void scale( float s ) { 141 x *= s; 142 y *= s; 143 z *= s; 144 w *= s; 145 } 146 147 public void add( Tuple4f t ) { 148 x += t.x; 149 y += t.y; 150 z += t.z; 151 w += t.w; 152 } 153 154 public void add( Tuple4f t1, Tuple4f t2 ) { 155 x = t1.x+t2.x; 156 y = t1.y+t2.y; 157 z = t1.z+t2.z; 158 w = t1.w+t2.w; 159 } 160 161 public void sub( Tuple4f t ) { 162 x -= t.x; 163 y -= t.y; 164 z -= t.z; 165 w -= t.w; 166 } 167 168 public void sub( Tuple4f t1, Tuple4f t2 ) { 169 x = t1.x-t2.x; 170 y = t1.y-t2.y; 171 z = t1.z-t2.z; 172 w = t1.w-t2.w; 173 } 174 175 public String toString() { 176 return "["+x+", "+y+", "+z+", "+w+"]"; 177 } 178 179}