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fuookami.ospf.kotlin.utils.multi_array.Shape.kt Maven / Gradle / Ivy
package fuookami.ospf.kotlin.utils.multi_array
import kotlin.reflect.*
import fuookami.ospf.kotlin.utils.math.*
import fuookami.ospf.kotlin.utils.math.value_range.*
import fuookami.ospf.kotlin.utils.concept.*
class DimensionMismatchingException(
val dimension: Int,
val vectorDimension: Int
) : Throwable() {
override val message: String = "Dimension should be $dimension, not $vectorDimension."
}
class OutOfShapeException(
val dimension: Int,
val length: Int,
val vectorIndex: Int
) : Throwable() {
override val message: String = "Length of dimension $dimension is $length, but it get $vectorIndex."
}
class UnknownDummyIndexTypeException(
val cls: KClass<*>
) : Throwable() {
override val message: String = "Unknown dummy index type: $cls."
}
interface Shape {
val dimension: Int
val size: Int
val indices get() = 0 until dimension
operator fun get(index: Int): Int
fun index(vector: IntArray): Int
fun vector(index: Int): IntArray
fun next(vector: IntArray): IntArray? {
val temp = vector.clone()
var i = dimension - 1
while (i >= 0) {
if (this[i] == 0 || temp[i] == (this[i] - 1)) {
temp[i] = 0
} else {
temp[i] = temp[i] + 1
return temp
}
--i
}
return null
}
fun dummyVector(vararg v: Any): DummyVector {
if (v.size != dimension) {
throw DimensionMismatchingException(dimension, v.size)
}
val vector = ArrayList()
for (i in indices) {
when (val index = v[i]) {
_a -> {
vector.add(DummyIndex(null))
}
is IntRange -> {
vector.add(DummyIndex(ValueRange(UInt64(index.first), UInt64(index.last)).value!!))
}
is IntegerRange<*> -> {
vector.add(
DummyIndex(
ValueRange(
(index.first as RealNumber<*>).toUInt64(),
(index.last as RealNumber<*>).toUInt64() - UInt64.one
).value!!
)
)
}
is Int -> {
vector.add(DummyIndex(ValueRange(UInt64(index), UInt64(index)).value!!))
}
is Indexed -> {
vector.add(DummyIndex(ValueRange(UInt64(index.index), UInt64(index.index)).value!!))
}
is Integer<*> -> {
vector.add(DummyIndex(ValueRange(index.toUInt64(), index.toUInt64() + UInt64.one).value!!))
}
else -> {
throw UnknownDummyIndexTypeException(index.javaClass.kotlin)
}
}
}
return vector
}
}
data class Shape1(private val d1: Int) : Shape {
override val dimension = 1
override val size by ::d1
@Throws(ArrayIndexOutOfBoundsException::class)
override operator fun get(index: Int): Int {
return when (index) {
0 -> d1
else -> throw ArrayIndexOutOfBoundsException("Total size is $d1, but it get $index")
}
}
@Throws(DimensionMismatchingException::class)
override fun index(vector: IntArray): Int {
return when (vector.size) {
1 -> if (vector[0] > d1) {
throw OutOfShapeException(1, d1, vector[0])
} else {
vector[0]
}
else -> throw DimensionMismatchingException(1, vector.size)
}
}
@Throws(ArrayIndexOutOfBoundsException::class)
override fun vector(index: Int): IntArray {
return if (index > d1) {
throw ArrayIndexOutOfBoundsException("Total size is $d1, but it get $index")
} else {
intArrayOf(index)
}
}
}
data class Shape2(private val d1: Int, private val d2: Int) : Shape {
private val totalSize by lazy { d1 * d2 }
override val dimension = 2
override val size get() = totalSize
override operator fun get(index: Int): Int {
return when (index) {
0 -> d1
1 -> d2
else -> throw ArrayIndexOutOfBoundsException("")
}
}
override fun index(vector: IntArray): Int {
return when (vector.size) {
2 -> if (vector[0] > d1) {
throw OutOfShapeException(1, d1, vector[0])
} else if (vector[1] > d2) {
throw OutOfShapeException(2, d2, vector[1])
} else {
vector[0] * d2 + vector[1]
}
else -> throw DimensionMismatchingException(2, vector.size)
}
}
@Throws(ArrayIndexOutOfBoundsException::class)
override fun vector(index: Int): IntArray {
return if (index > totalSize) {
throw ArrayIndexOutOfBoundsException("Total size is $totalSize, but it get $index")
} else {
intArrayOf(index / d2, index % d2)
}
}
}
data class Shape3(private val d1: Int, private val d2: Int, private val d3: Int) : Shape {
private val totalSize = d1 * d2 * d3
override val dimension = 3
override val size get() = totalSize
override operator fun get(index: Int): Int {
return when (index) {
0 -> d1
1 -> d2
2 -> d3
else -> throw ArrayIndexOutOfBoundsException("")
}
}
override fun index(vector: IntArray): Int {
return when (vector.size) {
3 -> if (vector[0] > d1) {
throw OutOfShapeException(1, d1, vector[0])
} else if (vector[1] > d2) {
throw OutOfShapeException(2, d2, vector[1])
} else if (vector[2] > d3) {
throw OutOfShapeException(3, d3, vector[2])
} else {
(vector[0] * d2 + vector[1]) * d3 + vector[2]
}
else -> throw DimensionMismatchingException(3, vector.size)
}
}
@Throws(ArrayIndexOutOfBoundsException::class)
override fun vector(index: Int): IntArray {
return if (index > totalSize) {
throw ArrayIndexOutOfBoundsException("Total size is $totalSize, but it get $index")
} else {
var currentIndex = index
val vector = ArrayList()
vector.add(0, currentIndex % d3)
currentIndex /= d3
vector.add(0, currentIndex % d2)
currentIndex /= d2
vector.add(0, currentIndex % d1)
currentIndex /= d1
vector.toIntArray()
}
}
}
data class Shape4(private val d1: Int, private val d2: Int, private val d3: Int, private val d4: Int) : Shape {
private val totalSize = d1 * d2 * d3 * d4
override val dimension = 4
override val size get() = totalSize
override operator fun get(index: Int): Int {
return when (index) {
0 -> d1
1 -> d2
2 -> d3
3 -> d4
else -> throw ArrayIndexOutOfBoundsException("")
}
}
override fun index(vector: IntArray): Int {
return when (vector.size) {
4 -> if (vector[0] > d1) {
throw OutOfShapeException(1, d1, vector[0])
} else if (vector[1] > d2) {
throw OutOfShapeException(2, d2, vector[1])
} else if (vector[2] > d3) {
throw OutOfShapeException(3, d3, vector[2])
} else if (vector[3] > d4) {
throw OutOfShapeException(4, d4, vector[3])
} else {
((vector[0] * d2 + vector[1]) * d3 + vector[2]) * d4 + vector[3]
}
else -> throw DimensionMismatchingException(4, vector.size)
}
}
@Throws(ArrayIndexOutOfBoundsException::class)
override fun vector(index: Int): IntArray {
return if (index > totalSize) {
throw ArrayIndexOutOfBoundsException("Total size is $totalSize, but it get $index")
} else {
var currentIndex = index
val vector = ArrayList()
vector.add(0, currentIndex % d4)
currentIndex /= d4
vector.add(0, currentIndex % d3)
currentIndex /= d3
vector.add(0, currentIndex % d2)
currentIndex /= d2
vector.add(0, currentIndex % d1)
currentIndex /= d1
vector.toIntArray()
}
}
}
data class DynShape(private val shape: IntArray) : Shape {
private val totalSize = calculateTotalSize(shape)
override val dimension get() = shape.size
override val size get() = totalSize
override operator fun get(index: Int): Int {
return shape[index]
}
override fun index(vector: IntArray): Int {
if (dimension != vector.size) {
throw DimensionMismatchingException(dimension, vector.size)
}
var ret = 0
for (i in 0 until (dimension - 1)) {
if (vector[i] > shape[i]) {
throw OutOfShapeException(i + 1, shape[i], vector[i])
}
ret += vector[i]
ret *= shape[i + 1]
}
return ret + vector[dimension - 1]
}
@Throws(ArrayIndexOutOfBoundsException::class)
override fun vector(index: Int): IntArray {
return if (index > totalSize) {
throw ArrayIndexOutOfBoundsException("Total size is $totalSize, but it get $index")
} else {
var currentIndex = index
val vector = ArrayList()
for (i in 0 until dimension) {
vector.add(0, currentIndex % shape[dimension - 1 - i])
currentIndex /= shape[dimension - 1 - i]
}
vector.toIntArray()
}
}
override fun equals(other: Any?): Boolean {
if (this === other) return true
if (javaClass != other?.javaClass) return false
other as DynShape
if (!shape.contentEquals(other.shape)) return false
return true
}
override fun hashCode(): Int {
return shape.contentHashCode()
}
companion object {
@JvmStatic
private fun calculateTotalSize(shape: IntArray): Int {
var ret = 1
for (l in shape) {
ret *= l
}
return ret
}
}
}
