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/*
* Copyright 2018 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package androidx.ui.vectormath64
data class Vector2(var x: Float = 0.0f, var y: Float = 0.0f) {
constructor(v: Vector2) : this(v.x, v.y)
inline val v2storage: List<Float>
get() = listOf(x, y)
inline var r: Float
get() = x
set(value) {
x = value
}
inline var g: Float
get() = y
set(value) {
y = value
}
inline var s: Float
get() = x
set(value) {
x = value
}
inline var t: Float
get() = y
set(value) {
y = value
}
inline var xy: Vector2
get() = Vector2(x, y)
set(value) {
x = value.x
y = value.y
}
inline var rg: Vector2
get() = Vector2(x, y)
set(value) {
x = value.x
y = value.y
}
inline var st: Vector2
get() = Vector2(x, y)
set(value) {
x = value.x
y = value.y
}
operator fun get(index: VectorComponent) = when (index) {
VectorComponent.X, VectorComponent.R, VectorComponent.S -> x
VectorComponent.Y, VectorComponent.G, VectorComponent.T -> y
else -> throw IllegalArgumentException("index must be X, Y, R, G, S or T")
}
operator fun get(index1: VectorComponent, index2: VectorComponent): Vector2 {
return Vector2(get(index1), get(index2))
}
operator fun get(index: Int) = when (index) {
0 -> x
1 -> y
else -> throw IllegalArgumentException("index must be in 0..1")
}
operator fun get(index1: Int, index2: Int) = Vector2(get(index1), get(index2))
operator fun set(index: Int, v: Float) = when (index) {
0 -> x = v
1 -> y = v
else -> throw IllegalArgumentException("index must be in 0..1")
}
operator fun set(index1: Int, index2: Int, v: Float) {
set(index1, v)
set(index2, v)
}
operator fun set(index: VectorComponent, v: Float) = when (index) {
VectorComponent.X, VectorComponent.R, VectorComponent.S -> x = v
VectorComponent.Y, VectorComponent.G, VectorComponent.T -> y = v
else -> throw IllegalArgumentException("index must be X, Y, R, G, S or T")
}
operator fun set(index1: VectorComponent, index2: VectorComponent, v: Float) {
set(index1, v)
set(index2, v)
}
operator fun unaryMinus() = Vector2(-x, -y)
operator fun inc() = Vector2(this).apply {
++x
++y
}
operator fun dec() = Vector2(this).apply {
--x
--y
}
inline operator fun plus(v: Float) = Vector2(x + v, y + v)
inline operator fun minus(v: Float) = Vector2(x - v, y - v)
inline operator fun times(v: Float) = Vector2(x * v, y * v)
inline operator fun div(v: Float) = Vector2(x / v, y / v)
inline operator fun plus(v: Vector2) = Vector2(x + v.x, y + v.y)
inline operator fun minus(v: Vector2) = Vector2(x - v.x, y - v.y)
inline operator fun times(v: Vector2) = Vector2(x * v.x, y * v.y)
inline operator fun div(v: Vector2) = Vector2(x / v.x, y / v.y)
inline fun transform(block: (Float) -> Float): Vector2 {
x = block(x)
y = block(y)
return this
}
}