refactor: remove superfluous generic IField parameter

Author: xeruf

plugin/src/main/kotlin/sc/plugin2023/Field.kt

@@ -9,7 +9,7 @@ import sc.plugin2023.util.FieldConverter
 
 @XStreamConverter(FieldConverter::class)
 @XStreamAlias("field")
-data class Field(val fish: Int = 0, val penguin: Team? = null) : IField<Field>, PublicCloneable<Field> {
+data class Field(val fish: Int = 0, val penguin: Team? = null) : IField, PublicCloneable<Field> {
     override val isEmpty: Boolean
         get() = fish == 0 && penguin == null
     val isOccupied: Boolean

plugin/src/main/kotlin/sc/plugin2024/Field.kt

@@ -4,9 +4,10 @@ import com.thoughtworks.xstream.annotations.XStreamAlias
 import com.thoughtworks.xstream.annotations.XStreamAsAttribute
 import sc.api.plugins.CubeDirection
 import sc.api.plugins.IField
+import sc.framework.PublicCloneable
 
 @XStreamAlias("field")
-sealed class Field: IField<Field> {
+sealed class Field: IField, PublicCloneable<Field> {
     override val isEmpty
         get() = true
 

plugin2026/src/main/kotlin/sc/plugin2026/FieldState.kt

@@ -4,7 +4,7 @@ import sc.api.plugins.IField
 import sc.api.plugins.Team
 import sc.framework.DeepCloneable
 
-enum class FieldState(val size: Int): IField<FieldState>, DeepCloneable<FieldState> {
+enum class FieldState(val size: Int): IField, DeepCloneable<FieldState> {
     ONE_S(1),
     ONE_M(2),
     ONE_L(3),

sdk/src/main/server-api/sc/api/plugins/IField.kt

@@ -1,5 +1,5 @@
 package sc.api.plugins
 
-interface IField<FIELD: IField<FIELD>> {
+interface IField {
     val isEmpty: Boolean
 }

sdk/src/main/server-api/sc/api/plugins/RectangularBoard.kt

@@ -13,7 +13,7 @@ typealias MutableTwoDBoard<FIELD> = Array<Array<FIELD>>
  * Ein rechteckiges Spielfeld aus Feldern.
  * Intern repräsentiert durch eine Liste an Zeilen.
  */
-open class RectangularBoard<FIELD: IField<FIELD>>(
+open class RectangularBoard<FIELD: IField>(
         @XStreamImplicit protected open val gameField: TwoDBoard<FIELD>
 ): FieldMap<FIELD>(), Collection<FIELD> {