From d7ed765dded6963e1c33ec929842f07185c3f7e9 Mon Sep 17 00:00:00 2001
From: JozsefA <jozsefaug@gmail.com>
Date: Tue, 1 Jun 2021 13:47:38 -0700
Subject: [PATCH] Debug text

---
 .../jozufozu/flywheel/backend/Backend.java    | 18 +++++++++--
 .../flywheel/backend/model/BufferedModel.java |  8 -----
 .../jozufozu/flywheel/event/ForgeEvents.java  | 32 +++++++++++++++++++
 3 files changed, 47 insertions(+), 11 deletions(-)
 create mode 100644 src/main/java/com/jozufozu/flywheel/event/ForgeEvents.java

diff --git a/src/main/java/com/jozufozu/flywheel/backend/Backend.java b/src/main/java/com/jozufozu/flywheel/backend/Backend.java
index b56df9c5c..7317f62a9 100644
--- a/src/main/java/com/jozufozu/flywheel/backend/Backend.java
+++ b/src/main/java/com/jozufozu/flywheel/backend/Backend.java
@@ -74,7 +74,7 @@ public class Backend {
 	});
 
 	private static Matrix4f projectionMatrix = new Matrix4f();
-	private static boolean instancingAvailable;
+	private static boolean instancedArrays;
 	private static boolean enabled;
 
 	static final Map<ResourceLocation, MaterialSpec<?>> materialRegistry = new HashMap<>();
@@ -108,6 +108,18 @@ public class Backend {
 		throw new IllegalStateException();
 	}
 
+	public static String getBackendDescriptor() {
+		if (canUseInstancing()) {
+			return "GL33 Instanced Arrays";
+		}
+
+		if (canUseVBOs()) {
+			return "VBOs";
+		}
+
+		return "Disabled";
+	}
+
 	/**
 	 * Register a shader program.
 	 */
@@ -156,7 +168,7 @@ public class Backend {
 	}
 
 	public static boolean canUseInstancing() {
-		return enabled && instancingAvailable;
+		return enabled && instancedArrays;
 	}
 
 	public static boolean canUseVBOs() {
@@ -189,7 +201,7 @@ public class Backend {
 
 		compat = new GlCompat(capabilities);
 
-		instancingAvailable = compat.vertexArrayObjectsSupported() &&
+		instancedArrays = compat.vertexArrayObjectsSupported() &&
 				compat.drawInstancedSupported() &&
 				compat.instancedArraysSupported();
 
diff --git a/src/main/java/com/jozufozu/flywheel/backend/model/BufferedModel.java b/src/main/java/com/jozufozu/flywheel/backend/model/BufferedModel.java
index 633052620..7ed50b701 100644
--- a/src/main/java/com/jozufozu/flywheel/backend/model/BufferedModel.java
+++ b/src/main/java/com/jozufozu/flywheel/backend/model/BufferedModel.java
@@ -47,14 +47,6 @@ public class BufferedModel {
 		return vertexCount;
 	}
 
-	public void bindBuffer() {
-		vbo.bind();
-	}
-
-	public void unbindBuffer() {
-		vbo.unbind();
-	}
-
 	public boolean valid() {
 		return vertexCount > 0 && !deleted;
 	}
diff --git a/src/main/java/com/jozufozu/flywheel/event/ForgeEvents.java b/src/main/java/com/jozufozu/flywheel/event/ForgeEvents.java
new file mode 100644
index 000000000..c77665233
--- /dev/null
+++ b/src/main/java/com/jozufozu/flywheel/event/ForgeEvents.java
@@ -0,0 +1,32 @@
+package com.jozufozu.flywheel.event;
+
+import java.util.ArrayList;
+
+import com.jozufozu.flywheel.backend.Backend;
+
+import net.minecraft.client.Minecraft;
+import net.minecraftforge.client.event.RenderGameOverlayEvent;
+import net.minecraftforge.eventbus.api.SubscribeEvent;
+import net.minecraftforge.fml.common.Mod;
+
+@Mod.EventBusSubscriber
+public class ForgeEvents {
+
+	@SubscribeEvent
+	public static void addToDebugScreen(RenderGameOverlayEvent.Text event) {
+
+		if (Minecraft.getInstance().gameSettings.showDebugInfo) {
+
+			ArrayList<String> right = event.getRight();
+
+			String text = "Flywheel: " + Backend.getBackendDescriptor();
+			if (right.size() < 10) {
+				right.add("");
+				right.add(text);
+			} else {
+				right.add(9, "");
+				right.add(10, text);
+			}
+		}
+	}
+}