[Editor] Refactor brush code

editor/src/main/kotlin/com/bartlomiejpluta/base/editor/model/map/brush/Brush.kt

@@ -1,9 +1,8 @@
 package com.bartlomiejpluta.base.editor.model.map.brush
 
 import com.bartlomiejpluta.base.editor.model.tileset.Tile
-import javafx.beans.property.SimpleBooleanProperty
 import javafx.beans.property.SimpleIntegerProperty
-import javafx.collections.FXCollections
+import javafx.beans.property.SimpleObjectProperty
 import javafx.collections.ObservableList
 import tornadofx.asObservable
 import tornadofx.getValue
@@ -28,8 +27,8 @@ class Brush {
    val brushRangeProperty = SimpleIntegerProperty(1)
    var brushRange by brushRangeProperty
 
-   val erasingProperty = SimpleBooleanProperty(false)
-   var erasing by erasingProperty
+   val modeProperty = SimpleObjectProperty(BrushMode.PAINTING_MODE)
+   var mode by modeProperty
 
    private constructor(brushArray: Array<Array<Tile>>) {
       rowsProperty.value = brushArray.size
@@ -58,23 +57,26 @@ class Brush {
 
    fun forEach(consumer: (row: Int, column: Int, tile: Tile?) -> Unit) {
       brush.forEachIndexed { id, tile ->
-         consumer(id / columns, id % columns, if(erasing) null else tile)
+         consumer(id / columns, id % columns, when(mode) {
+            BrushMode.PAINTING_MODE -> tile
+            BrushMode.ERASING_MODE -> null
+         })
       }
    }
 
    fun withBrushRange(range: Int) = Brush(Array(range) { Array(range) { brush[0] } }).apply {
       brushRange = range
-      erasing = this@Brush.erasing
+      mode = this@Brush.mode
    }
 
    fun withErasingMode() = Brush(brush, rows, columns).apply {
       brushRange = this@Brush.brushRange
-      erasing = true
+      mode = BrushMode.ERASING_MODE
    }
 
    fun withPaintingMode() = Brush(brush, rows, columns).apply {
       brushRange = this@Brush.brushRange
-      erasing = false
+      mode = BrushMode.PAINTING_MODE
    }
 
    companion object {

editor/src/main/kotlin/com/bartlomiejpluta/base/editor/model/map/brush/BrushMode.kt

@@ -0,0 +1,6 @@
+package com.bartlomiejpluta.base.editor.model.map.brush
+
+enum class BrushMode {
+   PAINTING_MODE,
+   ERASING_MODE
+}

editor/src/main/kotlin/com/bartlomiejpluta/base/editor/render/canvas/tileset/TileSetSelection.kt

@@ -26,8 +26,6 @@ class TileSetSelection(private val gameMapVM: GameMapVM, private val brushVM: Br
    }
 
    fun begin(row: Double, column: Double) {
-      resetBrushRange()
-
       startRow = row
       offsetRow = 0.0
       startColumn = column
@@ -36,10 +34,6 @@ class TileSetSelection(private val gameMapVM: GameMapVM, private val brushVM: Br
       updateRect(row, column)
    }
 
-   private fun resetBrushRange() {
-      brushVM.brushRange = 1
-   }
-
    private fun updateRect(row: Double, column: Double) {
       x = min(column, startColumn) * gameMapVM.tileSet.tileWidth
       y = min(row, startRow) * gameMapVM.tileSet.tileHeight

editor/src/main/kotlin/com/bartlomiejpluta/base/editor/view/map/MapToolbarView.kt

@@ -3,6 +3,7 @@ package com.bartlomiejpluta.base.editor.view.map
 import com.bartlomiejpluta.base.editor.command.context.UndoableScope
 import com.bartlomiejpluta.base.editor.command.service.UndoRedoService
 import com.bartlomiejpluta.base.editor.event.RedrawMapRequestEvent
+import com.bartlomiejpluta.base.editor.model.map.brush.BrushMode
 import com.bartlomiejpluta.base.editor.viewmodel.map.BrushVM
 import com.bartlomiejpluta.base.editor.viewmodel.map.GameMapVM
 import javafx.scene.control.ToggleGroup
@@ -18,9 +19,9 @@ class MapToolbarView : View() {
    private val mapVM = find<GameMapVM>()
    private val brushVM = find<BrushVM>()
 
-   private val tool = ToggleGroup().apply {
-      brushVM.erasingProperty.addListener { observable, oldValue, newValue ->
-         selectedValueProperty<Boolean>().value = newValue
+   private val brushMode = ToggleGroup().apply {
+      brushVM.erasingProperty.addListener { _, _, newValue ->
+         selectedValueProperty<BrushMode>().value = newValue
       }
    }
 
@@ -73,7 +74,7 @@ class MapToolbarView : View() {
          }
       }
 
-      togglebutton(value = false, group = tool) {
+      togglebutton(value = BrushMode.PAINTING_MODE, group = brushMode) {
          graphic = FontIcon("fa-paint-brush")
 
          action {
@@ -81,7 +82,7 @@ class MapToolbarView : View() {
          }
       }
 
-      togglebutton(value = true, group = tool) {
+      togglebutton(value = BrushMode.ERASING_MODE, group = brushMode) {
          graphic = FontIcon("fa-eraser")
 
          action {

editor/src/main/kotlin/com/bartlomiejpluta/base/editor/viewmodel/map/BrushVM.kt

@@ -22,7 +22,7 @@ class BrushVM : ItemViewModel<Brush>(Brush.of(arrayOf(arrayOf()))) {
    val brushRangeProperty = bind(Brush::brushRangeProperty)
    var brushRange by brushRangeProperty
 
-   val erasingProperty = bind(Brush::erasingProperty)
+   val erasingProperty = bind(Brush::modeProperty)
    var erasing by erasingProperty
 
    fun forEach(consumer: (row: Int, column: Int, tile: Tile?) -> Unit) = item.forEach(consumer)