From f729d5199a2acd9264f9e4244d598debdc53cbcc Mon Sep 17 00:00:00 2001
From: Moulberry <james.jenour@student.scotch.wa.edu.au>
Date: Sun, 9 Aug 2020 07:02:36 +1000
Subject: 1.1.1

---
 .../notenoughupdates/mbgui/MBGuiGroupFloating.java | 58 ++++++++++++++++++++++
 1 file changed, 58 insertions(+)

(limited to 'src/main/java/io/github/moulberry/notenoughupdates/mbgui/MBGuiGroupFloating.java')

diff --git a/src/main/java/io/github/moulberry/notenoughupdates/mbgui/MBGuiGroupFloating.java b/src/main/java/io/github/moulberry/notenoughupdates/mbgui/MBGuiGroupFloating.java
index 91cca2d7..6bdd25fd 100644
--- a/src/main/java/io/github/moulberry/notenoughupdates/mbgui/MBGuiGroupFloating.java
+++ b/src/main/java/io/github/moulberry/notenoughupdates/mbgui/MBGuiGroupFloating.java
@@ -1,5 +1,9 @@
 package io.github.moulberry.notenoughupdates.mbgui;
 
+import io.github.moulberry.notenoughupdates.util.Utils;
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.gui.GuiScreen;
+import net.minecraft.client.gui.inventory.GuiContainer;
 import org.lwjgl.util.vector.Vector2f;
 
 import java.util.*;
@@ -7,6 +11,8 @@ import java.util.*;
 public class MBGuiGroupFloating extends MBGuiGroup {
 
     private LinkedHashMap<MBGuiElement, MBAnchorPoint> children;
+    private GuiContainer lastContainer = null;
+    private HashMap<MBGuiElement, Vector2f> childrenPositionOffset = new HashMap<>();
 
     public MBGuiGroupFloating(int width, int height, LinkedHashMap<MBGuiElement, MBAnchorPoint> children) {
         this.width = width;
@@ -19,8 +25,54 @@ public class MBGuiGroupFloating extends MBGuiGroup {
         return Collections.unmodifiableMap(children);
     }
 
+    @Override
+    public Map<MBGuiElement, Vector2f> getChildrenPosition() {
+        GuiScreen currentScreen = Minecraft.getMinecraft().currentScreen;
+
+        if(currentScreen instanceof GuiContainer) {
+            GuiContainer currentContainer = (GuiContainer) currentScreen;
+            if(lastContainer != currentContainer) {
+                lastContainer = currentContainer;
+                for(Map.Entry<MBGuiElement, MBAnchorPoint> entry : children.entrySet()) {
+                    MBGuiElement child = entry.getKey();
+                    MBAnchorPoint anchorPoint = entry.getValue();
+
+                    Vector2f childPos;
+                    if(childrenPosition.containsKey(child)) {
+                        childPos = new Vector2f(childrenPosition.get(child));
+                    } else {
+                        childPos = new Vector2f();
+                    }
+
+                    if(anchorPoint.anchorPoint == MBAnchorPoint.AnchorPoint.INV_BOTMID) {
+                        try {
+                            int xSize = (int) Utils.getField(GuiContainer.class, currentContainer, "xSize", "field_146999_f");
+                            int ySize = (int) Utils.getField(GuiContainer.class, currentContainer, "ySize", "field_147000_g");
+                            int guiLeft = (int) Utils.getField(GuiContainer.class, currentContainer, "guiLeft", "field_147003_i");
+                            int guiTop = (int) Utils.getField(GuiContainer.class, currentContainer, "guiTop", "field_147009_r");
+
+                            int defGuiLeft = (this.width - xSize) / 2;
+                            int defGuiTop = (this.height - ySize) / 2;
+
+                            childPos.x += guiLeft-defGuiLeft + (anchorPoint.anchorPoint.x-0.5f)*xSize;
+                            childPos.y += guiTop-defGuiTop + (anchorPoint.anchorPoint.y-0.5f)*ySize;
+                        } catch(Exception ignored) {
+                        }
+                    }
+
+                    childrenPositionOffset.put(child, childPos);
+                }
+            }
+            return Collections.unmodifiableMap(childrenPositionOffset);
+        } else {
+            return Collections.unmodifiableMap(childrenPosition);
+        }
+    }
+
     @Override
     public void recalculate() {
+        lastContainer = null;
+
         for(MBGuiElement child : children.keySet()) {
             child.recalculate();
         }
@@ -30,6 +82,12 @@ public class MBGuiGroupFloating extends MBGuiGroup {
             MBAnchorPoint anchorPoint = entry.getValue();
             float x = anchorPoint.anchorPoint.x * width - anchorPoint.anchorPoint.x * child.getWidth() + anchorPoint.offset.x;
             float y = anchorPoint.anchorPoint.y * height - anchorPoint.anchorPoint.y * child.getHeight() + anchorPoint.offset.y;
+
+            if(anchorPoint.anchorPoint == MBAnchorPoint.AnchorPoint.INV_BOTMID) {
+                x = width*0.5f + anchorPoint.offset.x;
+                y = height*0.5f + anchorPoint.offset.y;
+            }
+
             childrenPosition.put(child, new Vector2f(x, y));
         }
     }
-- 
cgit