Add mob drop viewer to item list

src/main/kotlin/moe/nea/firmament/util/ItemUtil.kt

@@ -1,5 +1,6 @@
 /*
  * SPDX-FileCopyrightText: 2023 Linnea Gräf <nea@nea.moe>
+ * SPDX-FileCopyrightText: 2024 Linnea Gräf <nea@nea.moe>
  *
  * SPDX-License-Identifier: GPL-3.0-or-later
  */
@@ -14,6 +15,7 @@ import net.minecraft.text.Text
 
 
 fun ItemStack.appendLore(args: List<Text>) {
+    if (args.isEmpty()) return
     val compoundTag = getOrCreateSubNbt("display")
     val loreList = compoundTag.getOrCreateList("Lore", NbtString.STRING_TYPE)
     for (arg in args) {

src/main/kotlin/moe/nea/firmament/util/LoadResource.kt

@@ -0,0 +1,25 @@
+/*
+ * SPDX-FileCopyrightText: 2024 Linnea Gräf <nea@nea.moe>
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+package moe.nea.firmament.util
+
+import java.io.InputStream
+import kotlin.io.path.inputStream
+import kotlin.jvm.optionals.getOrNull
+import net.minecraft.util.Identifier
+import moe.nea.firmament.repo.RepoDownloadManager
+
+
+fun Identifier.openFirmamentResource(): InputStream {
+    val resource = MC.resourceManager.getResource(this).getOrNull()
+    if (resource == null) {
+        if (namespace == "neurepo")
+            return RepoDownloadManager.repoSavedLocation.resolve(path).inputStream()
+        error("Could not read resource $this")
+    }
+    return resource.inputStream
+}
+

src/main/kotlin/moe/nea/firmament/util/assertions.kt

@@ -1,5 +1,6 @@
 /*
  * SPDX-FileCopyrightText: 2023 Linnea Gräf <nea@nea.moe>
+ * SPDX-FileCopyrightText: 2024 Linnea Gräf <nea@nea.moe>
  *
  * SPDX-License-Identifier: GPL-3.0-or-later
  */

src/main/kotlin/moe/nea/firmament/util/item/SkullItemData.kt

@@ -1,5 +1,6 @@
 /*
  * SPDX-FileCopyrightText: 2023 Linnea Gräf <nea@nea.moe>
+ * SPDX-FileCopyrightText: 2024 Linnea Gräf <nea@nea.moe>
  *
  * SPDX-License-Identifier: GPL-3.0-or-later
  */
@@ -18,8 +19,13 @@ import kotlinx.serialization.Serializable
 import kotlinx.serialization.UseSerializers
 import kotlinx.serialization.decodeFromString
 import kotlinx.serialization.encodeToString
-import net.minecraft.client.texture.PlayerSkinProvider
+import net.minecraft.block.entity.SkullBlockEntity
+import net.minecraft.item.ItemStack
+import net.minecraft.item.Items
+import net.minecraft.nbt.NbtCompound
+import net.minecraft.nbt.NbtHelper
 import moe.nea.firmament.Firmament
+import moe.nea.firmament.repo.set
 import moe.nea.firmament.util.assertTrueOr
 import moe.nea.firmament.util.json.DashlessUUIDSerializer
 import moe.nea.firmament.util.json.InstantAsLongSerializer
@@ -46,6 +52,38 @@ fun GameProfile.setTextures(textures: MinecraftTexturesPayloadKt) {
 }
 
 private val propertyTextures = "textures"
+fun String.padBase64(): String {
+    return this + "=".repeat((4 - (this.length % 4)) % 4)
+}
+
+fun ItemStack.setEncodedSkullOwner(uuid: UUID, encodedData: String) {
+    assert(this.item == Items.PLAYER_HEAD)
+    val gameProfile = GameProfile(uuid, "LameGuy123")
+    gameProfile.properties.put(propertyTextures, Property(propertyTextures, encodedData.padBase64()))
+    val nbt: NbtCompound = this.orCreateNbt
+    nbt[SkullBlockEntity.SKULL_OWNER_KEY] = NbtHelper.writeGameProfile(
+        NbtCompound(),
+        gameProfile
+    )
+}
+
+val zeroUUID = UUID.fromString("d3cb85e2-3075-48a1-b213-a9bfb62360c1")
+fun ItemStack.setSkullOwner(uuid: UUID, url: String) {
+    assert(this.item == Items.PLAYER_HEAD)
+    val gameProfile = GameProfile(uuid, "LameGuy123")
+    gameProfile.setTextures(
+        MinecraftTexturesPayloadKt(
+            mapOf(MinecraftProfileTexture.Type.SKIN to MinecraftProfileTextureKt(url))
+        )
+    )
+    val nbt: NbtCompound = this.orCreateNbt
+    nbt[SkullBlockEntity.SKULL_OWNER_KEY] = NbtHelper.writeGameProfile(
+        NbtCompound(),
+        gameProfile
+    )
+
+}
+
 
 fun decodeProfileTextureProperty(property: Property): MinecraftTexturesPayloadKt? {
     assertTrueOr(property.name == propertyTextures) { return null }

src/main/kotlin/moe/nea/firmament/util/render/TranslatedScissors.kt

@@ -0,0 +1,27 @@
+/*
+ * SPDX-FileCopyrightText: 2024 Linnea Gräf <nea@nea.moe>
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+package moe.nea.firmament.util.render
+
+import org.joml.Vector4f
+import net.minecraft.client.gui.DrawContext
+
+fun DrawContext.enableScissorWithTranslation(x1: Float, y1: Float, x2: Float, y2: Float) {
+    val pMat = matrices.peek().positionMatrix
+    val target = Vector4f()
+
+    target.set(x1, y1, 0f, 1f)
+    target.mul(pMat)
+    val scissorX1 = target.x
+    val scissorY1 = target.y
+
+    target.set(x2, y2, 0f, 1f)
+    target.mul(pMat)
+    val scissorX2 = target.x
+    val scissorY2 = target.y
+
+    enableScissor(scissorX1.toInt(), scissorY1.toInt(), scissorX2.toInt(), scissorY2.toInt())
+}