implement hotbar

src/js/net/minecraft/client/gui/IngameOverlay.js

@@ -6,12 +6,16 @@ window.IngameOverlay = class extends Gui {
         this.window = window;
 
         this.textureCrosshair = Gui.loadTexture("icons.png");
+        this.textureHotbar = Gui.loadTexture("gui.png");
+        this.textureTerrain = Gui.loadTexture("terrain.png");
     }
 
     render(stack, mouseX, mouseY, partialTicks) {
         if (this.minecraft.hasInGameFocus()) {
             this.renderCrosshair(stack, this.window.width / 2, this.window.height / 2)
         }
+
+        this.renderHotbar(stack, this.window.width / 2 - 100, this.window.height - 22);
     }
 
     renderCrosshair(stack, x, y) {
@@ -19,4 +23,29 @@ window.IngameOverlay = class extends Gui {
         this.drawSprite(stack, this.textureCrosshair, 0, 0, 15, 15, x - size / 2, y - size / 2, size, size, 0.6);
     }
 
+    renderHotbar(stack, x, y) {
+        this.drawSprite(stack, this.textureHotbar, 0, 0, 200, 22, x, y, 200, 22)
+        this.drawSprite(
+            stack,
+            this.textureHotbar,
+            0, 22,
+            24, 24,
+            x + this.minecraft.inventory.selectedSlotIndex * 20, y - 1,
+            24, 24
+        )
+
+        for (let i = 0; i < 9; i++) {
+            let typeId = this.minecraft.inventory.getItemInSlot(i);
+
+            if (typeId !== 0) {
+                this.renderBlock(
+                    stack,
+                    this.textureTerrain, Block.getById(typeId),
+                    x + i * 20,
+                    y
+                );
+            }
+        }
+    }
+
 }