Improve performance of Item List

4 files changed, 165 insertions, 14 deletions

diff --git a/LICENSES/MIT.txt b/LICENSES/MIT.txt
new file mode 100644
index 0000000..2071b23
--- /dev/null
+++ b/LICENSES/MIT.txt
@@ -0,0 +1,9 @@
+MIT License
+
+Copyright (c) <year> <copyright holders>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/src/main/kotlin/moe/nea/firmament/rei/FirmamentReiPlugin.kt b/src/main/kotlin/moe/nea/firmament/rei/FirmamentReiPlugin.kt
index b39dafa..de743c6 100644
--- a/src/main/kotlin/moe/nea/firmament/rei/FirmamentReiPlugin.kt
+++ b/src/main/kotlin/moe/nea/firmament/rei/FirmamentReiPlugin.kt
@@ -37,7 +37,7 @@ class FirmamentReiPlugin : REIClientPlugin {
 
     companion object {
         fun EntryStack<SBItemStack>.asItemEntry(): EntryStack<ItemStack> {
-            return EntryStack.of(VanillaEntryTypes.ITEM, value.asItemStack())
+            return EntryStack.of(VanillaEntryTypes.ITEM, value.asImmutableItemStack())
         }
 
         val SKYBLOCK_ITEM_TYPE_ID = Identifier("firmament", "skyblockitems")
diff --git a/src/main/kotlin/moe/nea/firmament/rei/NEUItemEntryRenderer.kt b/src/main/kotlin/moe/nea/firmament/rei/NEUItemEntryRenderer.kt
index a123fa8..b3e5a10 100644
--- a/src/main/kotlin/moe/nea/firmament/rei/NEUItemEntryRenderer.kt
+++ b/src/main/kotlin/moe/nea/firmament/rei/NEUItemEntryRenderer.kt
@@ -1,20 +1,34 @@
 /*
  * SPDX-FileCopyrightText: 2023 Linnea Gräf <nea@nea.moe>
+ * SPDX-FileCopyrightText: 2018-2023 shedaniel <daniel@shedaniel.me>
  *
  * SPDX-License-Identifier: GPL-3.0-or-later
+ * SPDX-License-Identifier: MIT
  */
 
 package moe.nea.firmament.rei
 
+import com.mojang.blaze3d.platform.GlStateManager.DstFactor
+import com.mojang.blaze3d.platform.GlStateManager.SrcFactor
+import com.mojang.blaze3d.systems.RenderSystem
 import me.shedaniel.math.Rectangle
+import me.shedaniel.rei.api.client.entry.renderer.BatchedEntryRenderer
 import me.shedaniel.rei.api.client.entry.renderer.EntryRenderer
 import me.shedaniel.rei.api.client.gui.widgets.Tooltip
 import me.shedaniel.rei.api.client.gui.widgets.TooltipContext
 import me.shedaniel.rei.api.common.entry.EntryStack
-import net.minecraft.client.gui.DrawContext
 import moe.nea.firmament.rei.FirmamentReiPlugin.Companion.asItemEntry
+import net.minecraft.client.MinecraftClient
+import net.minecraft.client.gui.DrawContext
+import net.minecraft.client.render.DiffuseLighting
+import net.minecraft.client.render.OverlayTexture
+import net.minecraft.client.render.VertexConsumerProvider
+import net.minecraft.client.render.model.BakedModel
+import net.minecraft.client.render.model.json.ModelTransformationMode
+import net.minecraft.client.texture.SpriteAtlasTexture
+import net.minecraft.item.ItemStack
 
-object NEUItemEntryRenderer : EntryRenderer<SBItemStack> {
+object NEUItemEntryRenderer : EntryRenderer<SBItemStack>, BatchedEntryRenderer<SBItemStack, BakedModel> {
     override fun render(
         entry: EntryStack<SBItemStack>,
         context: DrawContext,
@@ -26,8 +40,136 @@ object NEUItemEntryRenderer : EntryRenderer<SBItemStack> {
         entry.asItemEntry().render(context, bounds, mouseX, mouseY, delta)
     }
 
+    val minecraft = MinecraftClient.getInstance()
+
     override fun getTooltip(entry: EntryStack<SBItemStack>, tooltipContext: TooltipContext): Tooltip? {
         return entry.asItemEntry().getTooltip(tooltipContext, false)
     }
 
+    override fun getExtraData(entry: EntryStack<SBItemStack>): BakedModel {
+        return minecraft.itemRenderer.getModel(entry.asItemEntry().value, minecraft.world, minecraft.player, 0)
+    }
+
+    override fun getBatchIdentifier(entry: EntryStack<SBItemStack>?, bounds: Rectangle?, extraData: BakedModel): Int {
+        return 1738923 + if (extraData.isSideLit) 1 else 0
+    }
+
+    override fun startBatch(
+        entry: EntryStack<SBItemStack>,
+        model: BakedModel,
+        graphics: DrawContext,
+        delta: Float
+    ) {
+        setupGL(model)
+        val modelViewStack = RenderSystem.getModelViewStack()
+        modelViewStack.push()
+        modelViewStack.scale(20.0f, -20.0f, 1.0f)
+        RenderSystem.applyModelViewMatrix()
+    }
+
+    fun setupGL(model: BakedModel) {
+        minecraft.textureManager.getTexture(SpriteAtlasTexture.BLOCK_ATLAS_TEXTURE)
+            .setFilter(false, false)
+        RenderSystem.setShaderTexture(0, SpriteAtlasTexture.BLOCK_ATLAS_TEXTURE)
+        RenderSystem.enableBlend()
+        RenderSystem.blendFunc(SrcFactor.SRC_ALPHA, DstFactor.ONE_MINUS_SRC_ALPHA)
+        RenderSystem.setShaderColor(1.0f, 1.0f, 1.0f, 1.0f)
+        val sideLit = model.isSideLit
+        if (!sideLit) {
+            DiffuseLighting.disableGuiDepthLighting()
+        }
+    }
+
+    override fun renderBase(
+        entry: EntryStack<SBItemStack>,
+        model: BakedModel,
+        graphics: DrawContext,
+        immediate: VertexConsumerProvider.Immediate,
+        bounds: Rectangle,
+        mouseX: Int,
+        mouseY: Int,
+        delta: Float
+    ) {
+        if (entry.isEmpty) return
+        val value = entry.asItemEntry().value
+        graphics.matrices.push()
+        graphics.matrices.translate(bounds.centerX.toFloat() / 20.0f, bounds!!.centerY.toFloat() / -20.0f, 0.0f)
+        graphics.matrices.scale(
+            bounds.getWidth().toFloat() / 20.0f,
+            (bounds.getWidth() + bounds.getHeight()).toFloat() / 2.0f / 20.0f,
+            1.0f
+        )
+        minecraft
+            .itemRenderer
+            .renderItem(
+                value,
+                ModelTransformationMode.GUI,
+                false,
+                graphics.matrices,
+                immediate,
+                15728880,
+                OverlayTexture.DEFAULT_UV,
+                model
+            )
+        graphics.matrices.pop()
+
+    }
+
+    override fun afterBase(
+        entry: EntryStack<SBItemStack>,
+        model: BakedModel,
+        graphics: DrawContext,
+        delta: Float
+    ) {
+        this.endGL(model)
+        RenderSystem.getModelViewStack().pop()
+        RenderSystem.applyModelViewMatrix()
+    }
+
+    fun endGL(model: BakedModel) {
+        RenderSystem.enableDepthTest()
+        val sideLit = model.isSideLit
+        if (!sideLit) {
+            DiffuseLighting.enableGuiDepthLighting()
+        }
+    }
+
+    override fun renderOverlay(
+        entry: EntryStack<SBItemStack>,
+        extraData: BakedModel,
+        graphics: DrawContext,
+        immediate: VertexConsumerProvider.Immediate,
+        bounds: Rectangle,
+        mouseX: Int,
+        mouseY: Int,
+        delta: Float
+    ) {
+        val modelViewStack = RenderSystem.getModelViewStack()
+        modelViewStack.push()
+        modelViewStack.multiplyPositionMatrix(graphics.matrices.peek().positionMatrix)
+        modelViewStack.translate(bounds.x.toFloat(), bounds.y.toFloat(), 0.0f)
+        modelViewStack.scale(
+            bounds.width.toFloat() / 16.0f,
+            (bounds.getWidth() + bounds.getHeight()).toFloat() / 2.0f / 16.0f,
+            1.0f
+        )
+        RenderSystem.applyModelViewMatrix()
+        renderOverlay(DrawContext(minecraft, graphics.vertexConsumers), entry.asItemEntry())
+        modelViewStack.pop()
+        RenderSystem.applyModelViewMatrix()
+    }
+    fun renderOverlay(graphics: DrawContext, entry: EntryStack<ItemStack>) {
+        if (!entry.isEmpty) {
+            graphics.drawItemInSlot(MinecraftClient.getInstance().textRenderer, entry.value, 0, 0, null)
+        }
+    }
+
+    override fun endBatch(
+        entry: EntryStack<SBItemStack>?,
+        extraData: BakedModel?,
+        graphics: DrawContext?,
+        delta: Float
+    ) {
+    }
+
 }
diff --git a/src/main/kotlin/moe/nea/firmament/rei/SBItemEntryDefinition.kt b/src/main/kotlin/moe/nea/firmament/rei/SBItemEntryDefinition.kt
index fc0db3d..25c450a 100644
--- a/src/main/kotlin/moe/nea/firmament/rei/SBItemEntryDefinition.kt
+++ b/src/main/kotlin/moe/nea/firmament/rei/SBItemEntryDefinition.kt
@@ -9,7 +9,6 @@ package moe.nea.firmament.rei
 import io.github.moulberry.repo.data.NEUIngredient
 import io.github.moulberry.repo.data.NEUItem
 import io.github.moulberry.repo.data.Rarity
-import java.util.stream.Stream
 import me.shedaniel.rei.api.client.entry.renderer.EntryRenderer
 import me.shedaniel.rei.api.common.entry.EntrySerializer
 import me.shedaniel.rei.api.common.entry.EntryStack
@@ -17,20 +16,17 @@ import me.shedaniel.rei.api.common.entry.comparison.ComparisonContext
 import me.shedaniel.rei.api.common.entry.type.EntryDefinition
 import me.shedaniel.rei.api.common.entry.type.EntryType
 import me.shedaniel.rei.api.common.entry.type.VanillaEntryTypes
-import net.minecraft.item.ItemStack
-import net.minecraft.registry.tag.TagKey
-import net.minecraft.text.Text
-import net.minecraft.util.Identifier
 import moe.nea.firmament.rei.FirmamentReiPlugin.Companion.asItemEntry
 import moe.nea.firmament.repo.ExpLadders
 import moe.nea.firmament.repo.ItemCache
 import moe.nea.firmament.repo.ItemCache.asItemStack
 import moe.nea.firmament.repo.RepoManager
-import moe.nea.firmament.util.FirmFormatters
-import moe.nea.firmament.util.HypixelPetInfo
-import moe.nea.firmament.util.SkyblockId
-import moe.nea.firmament.util.petData
-import moe.nea.firmament.util.skyBlockId
+import moe.nea.firmament.util.*
+import net.minecraft.item.ItemStack
+import net.minecraft.registry.tag.TagKey
+import net.minecraft.text.Text
+import net.minecraft.util.Identifier
+import java.util.stream.Stream
 
 // TODO: add in extra data like pet info, into this structure
 data class PetData(
@@ -67,7 +63,7 @@ data class SBItemStack(
         RepoManager.getPotentialStubPetData(skyblockId)
     )
 
-    private val itemStack by lazy {
+    private val itemStack by lazy(LazyThreadSafetyMode.NONE) {
         if (skyblockId == SkyblockId.COINS)
             return@lazy ItemCache.coinItem(stackSize)
         val replacementData = mutableMapOf<String, String>()
@@ -87,6 +83,10 @@ data class SBItemStack(
         return@lazy neuItem.asItemStack(idHint = skyblockId, replacementData).copyWithCount(stackSize)
     }
 
+    fun asImmutableItemStack(): ItemStack {
+        return itemStack
+    }
+
     fun asItemStack(): ItemStack {
         return itemStack.copy()
     }