hud: add json serializing

src/main/java/de/bixilon/minosoft/gui/rendering/hud/elements/position/HUDElementVec2.kt

@@ -1,5 +1,6 @@
 package de.bixilon.minosoft.gui.rendering.hud.elements.position
 
+import com.squareup.moshi.JsonWriter
 import de.bixilon.minosoft.data.Axes
 import de.bixilon.minosoft.gui.rendering.hud.HUDRenderer
 import de.bixilon.minosoft.gui.rendering.util.VecUtil.EMPTY
@@ -25,6 +26,11 @@ class HUDElementVec2(
         return HUDElementVec2(x + vec2.x, xUnit, y + vec2.y, yUnit)
     }
 
+    fun toJson(jsonWriter: JsonWriter) {
+        jsonWriter.name("x").value(String.format("%s%s", x, xUnit.abbreviation))
+        jsonWriter.name("y").value(String.format("%s%s", y, yUnit.abbreviation))
+    }
+
     companion object {
         private val ZERO_VECTOR = HUDElementVec2(Vec2.EMPTY, HUDElementPositionUnits.PIXELS)
 

src/main/java/de/bixilon/minosoft/gui/rendering/hud/elements/primitive/HUDElement.kt

@@ -13,6 +13,7 @@
 
 package de.bixilon.minosoft.gui.rendering.hud.elements.primitive
 
+import com.squareup.moshi.JsonWriter
 import de.bixilon.minosoft.gui.rendering.hud.HUDMenus
 import de.bixilon.minosoft.gui.rendering.hud.HUDRenderer
 import de.bixilon.minosoft.gui.rendering.hud.elements.position.HUDElementPositionAnchors
@@ -79,4 +80,14 @@ open class HUDElement(
     open fun update() {}
 
     open fun prepare(mesh: SimpleTextureMesh) {}
+
+    open fun toJson(jsonWriter: JsonWriter) {
+        jsonWriter.name("position")
+        position.toJson(jsonWriter)
+        jsonWriter.name("size")
+        jsonWriter.beginObject()
+        size.toJson(jsonWriter)
+        jsonWriter.endObject()
+        jsonWriter.name("z").value(z)
+    }
 }

src/main/java/de/bixilon/minosoft/gui/rendering/hud/elements/primitive/HUDElementPosition.kt

@@ -1,5 +1,6 @@
 package de.bixilon.minosoft.gui.rendering.hud.elements.primitive
 
+import com.squareup.moshi.JsonWriter
 import de.bixilon.minosoft.Minosoft
 import de.bixilon.minosoft.data.registries.ResourceLocation
 import de.bixilon.minosoft.gui.rendering.hud.HUDRenderer
@@ -47,6 +48,17 @@ class HUDElementPosition(
         return HUDElementPosition(position + vec2, anchor, parentName, parentAnchor)
     }
 
+    fun toJson(jsonWriter: JsonWriter) {
+        jsonWriter.beginObject()
+        position.toJson(jsonWriter)
+        jsonWriter.name("anchor").value(anchor.resourceLocation.full)
+        parentName?.let {
+            jsonWriter.name("parent").value(parentName)
+            jsonWriter.name("parent_anchor").value(parentAnchor!!.resourceLocation.full)
+        }
+        jsonWriter.endObject()
+    }
+
     companion object {
         fun deserialize(json: Map<String, Any>): HUDElementPosition {
             val position = HUDElementVec2.deserialize(json)!!

src/main/java/de/bixilon/minosoft/gui/rendering/hud/elements/primitive/HUDElementSerializer.kt

@@ -24,6 +24,11 @@ object HUDElementSerializer {
 
     @ToJson
     fun toJson(jsonWriter: JsonWriter, hudElement: HUDElement?) {
+        hudElement ?: return
+        jsonWriter.beginObject()
+        jsonWriter.name("type").value(HUD_ELEMENT_TYPES_REVERSED[hudElement::class]!!.toString())
+        hudElement.toJson(jsonWriter)
+        jsonWriter.endObject()
     }
 
     private val HUD_ELEMENT_TYPES = mutableMapOf(
@@ -31,4 +36,6 @@ object HUDElementSerializer {
         ResourceLocation("minosoft:text_element") to HUDTextElement::class,
         // modding here!
     )
+
+    val HUD_ELEMENT_TYPES_REVERSED = HUD_ELEMENT_TYPES.entries.associateBy({ it.value }) { it.key }
 }

src/main/java/de/bixilon/minosoft/gui/rendering/hud/elements/primitive/HUDImageElement.kt

@@ -1,5 +1,6 @@
 package de.bixilon.minosoft.gui.rendering.hud.elements.primitive
 
+import com.squareup.moshi.JsonWriter
 import de.bixilon.minosoft.data.registries.ResourceLocation
 import de.bixilon.minosoft.data.text.ChatColors
 import de.bixilon.minosoft.data.text.RGBColor
@@ -76,6 +77,15 @@ class HUDImageElement: HUDElement {
         textureMesh.load()
     }
 
+    override fun toJson(jsonWriter: JsonWriter) {
+        super.toJson(jsonWriter)
+        if (textureName != null) {
+            jsonWriter.name("texture").value(textureName.full)
+        }
+        jsonWriter.name("tint")
+        RGBColorSerializer.toJson(jsonWriter, tint)
+    }
+
     companion object {
         val DRAW_ORDER = arrayOf(0, 1, 2, 1, 3, 2)
     }

src/main/java/de/bixilon/minosoft/gui/rendering/hud/elements/text/HUDTextElement.kt

@@ -14,6 +14,7 @@
 
 package de.bixilon.minosoft.gui.rendering.hud.elements.text
 
+import com.squareup.moshi.JsonWriter
 import de.bixilon.minosoft.Minosoft
 import de.bixilon.minosoft.data.text.BaseComponent
 import de.bixilon.minosoft.data.text.ChatComponent
@@ -114,6 +115,32 @@ class HUDTextElement : HUDElement {
         return newLinePositions
     }
 
+    override fun toJson(jsonWriter: JsonWriter) {
+        super.toJson(jsonWriter)
+        jsonWriter.name("alignment").value(alignment.resourceLocation.full)
+        jsonWriter.name("content")
+        when (contents) {
+            is List<*> -> {
+                jsonWriter.beginArray()
+                for (item in contents as List<*>) {
+                    when (item) {
+                        is String -> jsonWriter.value(item)
+                        is Map<*, *> -> {
+                            jsonWriter.beginObject()
+                            for ((key, value) in item) {
+                                jsonWriter.name(key as String).value(value as String)
+                            }
+                            jsonWriter.endObject()
+                        }
+                    }
+                }
+                jsonWriter.endArray()
+            }
+            is String -> jsonWriter.value(contents as String)
+            else -> TODO("no handling possible for $contents")
+        }
+    }
+
     private fun getLastSpacerElementPosition(position: Int): Int {
         for (i in 0..position) {
             val j = glm.max(0, position - i - 1)