jei animation

src/main/java/com/cleanroommc/neverenoughanimations/animations/OpeningAnimation.java

@@ -1,6 +1,7 @@
 package com.cleanroommc.neverenoughanimations.animations;
 
 import com.cleanroommc.neverenoughanimations.NEAConfig;
+import com.cleanroommc.neverenoughanimations.util.Interpolations;
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.gui.inventory.GuiContainer;
 import net.minecraft.client.renderer.GlStateManager;
@@ -34,23 +35,27 @@ public static void animate(GuiContainer container, boolean open) {
     }
 
     public static float getScale(GuiContainer container) {
+        float min = 0.75f, max = 1f;
+        return Interpolations.lerp(min, max, getValue(container));
+    }
+
+    public static float getValue(GuiContainer container) {
         if (shouldCloseLast) return 0.001f;
         if (animatedGui != container) return 1f;
         float val = (Minecraft.getSystemTime() - Math.abs(startTime)) / (float) NEAConfig.openingAnimationTime;
-        float min = 0.75f, max = 1f;
         if (startTime < 0) {
             val = 1f - val;
             if (val <= 0) {
                 animatedGui = null;
                 shouldCloseLast = true;
-                return min;
+                return 0f;
             }
         } else if (val >= 1f) {
             animatedGui = null;
             return 1f;
         }
 
-        return NEAConfig.openingAnimationCurve.interpolate(min, max, val);
+        return NEAConfig.openingAnimationCurve.interpolate(0f, 1f, val);
     }
 
     public static boolean handleScale(GuiContainer container, boolean translateToPanel) {

src/main/java/com/cleanroommc/neverenoughanimations/core/LateMixin.java

@@ -11,7 +11,8 @@
 public class LateMixin implements ILateMixinLoader {
 
     private static final String[] mods = {
-            "trashslot"
+            "trashslot",
+            "jei"
     };
 
     @Override

src/main/java/com/cleanroommc/neverenoughanimations/core/mixin/jei/IngredientListOverlayMixin.java

@@ -0,0 +1,47 @@
+package com.cleanroommc.neverenoughanimations.core.mixin.jei;
+
+import com.cleanroommc.neverenoughanimations.animations.OpeningAnimation;
+import mezz.jei.api.gui.IGuiProperties;
+import mezz.jei.gui.overlay.IngredientListOverlay;
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.gui.GuiScreen;
+import net.minecraft.client.gui.inventory.GuiContainer;
+import net.minecraft.client.renderer.GlStateManager;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+import javax.annotation.Nullable;
+import java.awt.*;
+
+@Mixin(value = IngredientListOverlay.class, remap = false)
+public class IngredientListOverlayMixin {
+
+    @Shadow
+    @Nullable
+    private IGuiProperties guiProperties;
+
+    @Shadow private Rectangle displayArea;
+
+    @Inject(method = "drawScreen", at = @At("HEAD"))
+    public void drawScreenPre(Minecraft minecraft, int mouseX, int mouseY, float partialTicks, CallbackInfo ci) {
+        if (guiProperties != null) {
+            GlStateManager.pushMatrix();
+            GuiScreen screen = Minecraft.getMinecraft().currentScreen;
+            if (screen instanceof GuiContainer container) {
+                float val = 1f - OpeningAnimation.getValue(container);
+                if (val <= 0f) return;
+                GlStateManager.translate(displayArea.width * val, 0, 0);
+            }
+        }
+    }
+
+    @Inject(method = "drawScreen", at = @At("TAIL"))
+    public void drawScreenPost(Minecraft minecraft, int mouseX, int mouseY, float partialTicks, CallbackInfo ci) {
+        if (guiProperties != null) {
+            GlStateManager.popMatrix();
+        }
+    }
+}

src/main/java/com/cleanroommc/neverenoughanimations/core/mixin/jei/LeftAreaDispatcherMixin.java

@@ -0,0 +1,45 @@
+package com.cleanroommc.neverenoughanimations.core.mixin.jei;
+
+import com.cleanroommc.neverenoughanimations.animations.OpeningAnimation;
+import mezz.jei.gui.overlay.bookmarks.LeftAreaDispatcher;
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.gui.GuiScreen;
+import net.minecraft.client.gui.inventory.GuiContainer;
+import net.minecraft.client.renderer.GlStateManager;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+import java.awt.*;
+
+@Mixin(value = LeftAreaDispatcher.class, remap = false)
+public abstract class LeftAreaDispatcherMixin {
+
+    @Shadow private Rectangle displayArea;
+
+    @Shadow private boolean canShow;
+
+    @Shadow protected abstract boolean hasContent();
+
+    @Inject(method = "drawScreen", at = @At("HEAD"))
+    public void drawScreenPre(Minecraft minecraft, int mouseX, int mouseY, float partialTicks, CallbackInfo ci) {
+        if (canShow && hasContent()) {
+            GlStateManager.pushMatrix();
+            GuiScreen screen = Minecraft.getMinecraft().currentScreen;
+            if (screen instanceof GuiContainer container) {
+                float val = 1f - OpeningAnimation.getValue(container);
+                if (val <= 0f) return;
+                GlStateManager.translate(-displayArea.width * val, 0, 0);
+            }
+        }
+    }
+
+    @Inject(method = "drawScreen", at = @At("TAIL"))
+    public void drawScreenPost(Minecraft minecraft, int mouseX, int mouseY, float partialTicks, CallbackInfo ci) {
+        if (canShow && hasContent()) {
+            GlStateManager.popMatrix();
+        }
+    }
+}

src/main/resources/mixin.neverenoughanimations.jei.json

@@ -0,0 +1,13 @@
+{
+  "package": "com.cleanroommc.neverenoughanimations.core.mixin.jei",
+  "refmap": "mixins.neverenoughanimations.refmap.json",
+  "target": "@env(DEFAULT)",
+  "minVersion": "0.8",
+  "compatibilityLevel": "JAVA_8",
+  "client": [
+  ],
+  "mixins": [
+    "IngredientListOverlayMixin",
+    "LeftAreaDispatcherMixin"
+  ]
+}