// In GuiIngame.java or a mixin/patcher public void renderGameOverlay(float partialTicks) { // ... existing overlay rendering ... // Get player position EntityPlayerSP player = mc.thePlayer; if (player != null) { double x = player.posX; double y = player.posY; double z = player.posZ; String coordText = String.format("XYZ: %.1f, %.1f, %.1f", x, y, z); mc.fontRendererObj.drawStringWithShadow(coordText, 10, 10, 0xFFFFFF); } } Eaglercraft uses GWT to compile Java → JavaScript. Run:

./gradlew build Then use the generated .html / .js files. for Eagler 1.8.8 (e.g., Velocity/Bungee plugin) Eaglercraft 1.8.8 connects via WebSocket to a proxy that translates to standard Minecraft 1.8.8 protocol. You can write a plugin for EaglercraftX (the Java server proxy).

Example: Custom /heal command in the proxy:

I’d be happy to help you develop a feature for (likely referring to Eaglercraft , the browser-based Minecraft 1.8.8 client). However, your request is quite broad.