HealthTags improvements

src/main/java/net/wurstclient/hacks/HealthTagsHack.java

@@ -7,48 +7,132 @@
  */
 package net.wurstclient.hacks;
 
+import java.text.DecimalFormat;
+
+import net.minecraft.client.render.Tessellator;
+import net.minecraft.client.render.VertexConsumerProvider;
+import net.minecraft.client.util.math.MatrixStack;
+import net.minecraft.entity.Entity;
 import net.minecraft.entity.LivingEntity;
+import net.minecraft.entity.mob.MobEntity;
 import net.minecraft.text.MutableText;
 import net.minecraft.text.Text;
 import net.minecraft.util.Formatting;
 import net.wurstclient.Category;
 import net.wurstclient.SearchTags;
+import net.wurstclient.events.RenderListener;
 import net.wurstclient.hack.Hack;
+import net.wurstclient.settings.CheckboxSetting;
+import net.wurstclient.util.RenderUtils;
 
 @SearchTags({"health tags"})
-public final class HealthTagsHack extends Hack
+public final class HealthTagsHack extends Hack implements RenderListener
 {
+	private static final DecimalFormat DF = new DecimalFormat("0.##");
+
+	private final CheckboxSetting mobs = new CheckboxSetting("Mobs",
+		"Displays health tags above mobs also.", false);
+
+	private final CheckboxSetting unlimitedRange = new CheckboxSetting(
+		"Unlimited range", "Displays mob health tags at any distance.", false);
+
+	private final CheckboxSetting max =
+		new CheckboxSetting("Display max health for players", false);
+
+	private final CheckboxSetting round =
+		new CheckboxSetting("Round health", true);
+
 	public HealthTagsHack()
 	{
 		super("HealthTags");
 		setCategory(Category.RENDER);
+		addSetting(mobs);
+		addSetting(unlimitedRange);
+		addSetting(max);
+		addSetting(round);
+	}
+
+	@Override
+	public void onEnable()
+	{
+		EVENTS.add(RenderListener.class, this);
+	}
+
+	@Override
+	public void onDisable()
+	{
+		EVENTS.remove(RenderListener.class, this);
+	}
+
+	@Override
+	public void onRender(MatrixStack matrixStack, float partialTicks)
+	{
+		if(!mobs.isChecked())
+			return;
+
+		VertexConsumerProvider.Immediate immediate = VertexConsumerProvider
+			.immediate(Tessellator.getInstance().getBuffer());
+
+		for(Entity e : MC.world.getEntities())
+			if(e instanceof MobEntity entity)
+			{
+				String health = round.isChecked()
+					? Integer.toString((int)entity.getHealth())
+					: DF.format(entity.getHealth());
+
+				String maxHealth = round.isChecked()
+					? Integer.toString((int)entity.getMaxHealth())
+					: DF.format(entity.getMaxHealth());
+
+				Text text = Text.literal(health + "/" + maxHealth).formatted(
+					getColor(entity.getHealth(), entity.getMaxHealth()));
+
+				RenderUtils.renderTag(matrixStack, text, entity, immediate,
+					0xffffff, !entity.hasCustomName() ? 0.5 : 1,
+					unlimitedRange.isChecked() ? 1000 : 75, partialTicks);
+			}
+
+		immediate.draw();
 	}
 
 	public Text addHealth(LivingEntity entity, Text nametag)
 	{
 		if(!isEnabled())
 			return nametag;
 
-		int health = (int)entity.getHealth();
+		String health =
+			round.isChecked() ? Integer.toString((int)entity.getHealth())
+				: DF.format(entity.getHealth());
+
+		String maxHealth =
+			round.isChecked() ? Integer.toString((int)entity.getMaxHealth())
+				: DF.format(entity.getMaxHealth());
 
 		MutableText formattedHealth = Text.literal(" ")
-			.append(Integer.toString(health)).formatted(getColor(health));
+			.append(max.isChecked() ? health + "/" + maxHealth : health)
+			.formatted(getColor(entity.getHealth(), entity.getMaxHealth()));
+
 		return ((MutableText)nametag).append(formattedHealth);
 	}
 
-	private Formatting getColor(int health)
+	private Formatting getColor(float health, float maxHealth)
 	{
-		if(health <= 5)
+		if(health <= maxHealth * 0.25)
 			return Formatting.DARK_RED;
 
-		if(health <= 10)
+		if(health <= maxHealth * 0.5)
 			return Formatting.GOLD;
 
-		if(health <= 15)
+		if(health <= maxHealth * 0.75)
 			return Formatting.YELLOW;
 
 		return Formatting.GREEN;
 	}
 
+	public boolean hasMobHealthTags()
+	{
+		return isEnabled() && mobs.isChecked();
+	}
+
 	// See EntityRendererMixin.onRenderLabelIfPresent()
 }

src/main/java/net/wurstclient/util/RenderUtils.java

@@ -14,25 +14,25 @@
 import com.mojang.blaze3d.systems.RenderSystem;
 
 import net.minecraft.block.Blocks;
+import net.minecraft.client.MinecraftClient;
 import net.minecraft.client.font.TextRenderer;
+import net.minecraft.client.font.TextRenderer.TextLayerType;
 import net.minecraft.client.gl.VertexBuffer;
 import net.minecraft.client.gui.DrawContext;
-import net.minecraft.client.render.BufferBuilder;
+import net.minecraft.client.render.*;
 import net.minecraft.client.render.BufferBuilder.BuiltBuffer;
-import net.minecraft.client.render.Camera;
-import net.minecraft.client.render.DiffuseLighting;
-import net.minecraft.client.render.GameRenderer;
-import net.minecraft.client.render.Tessellator;
-import net.minecraft.client.render.VertexFormat;
-import net.minecraft.client.render.VertexFormats;
+import net.minecraft.client.render.entity.EntityRenderDispatcher;
 import net.minecraft.client.util.math.MatrixStack;
+import net.minecraft.entity.Entity;
 import net.minecraft.item.ItemStack;
+import net.minecraft.text.Text;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.math.Box;
 import net.minecraft.util.math.MathHelper;
 import net.minecraft.util.math.Vec3d;
 import net.minecraft.world.chunk.Chunk;
 import net.wurstclient.WurstClient;
+import net.wurstclient.hacks.NameTagsHack;
 
 public enum RenderUtils
 {
@@ -893,4 +893,51 @@ public static void drawItem(DrawContext context, ItemStack stack, int x,
 
 		RenderSystem.setShaderColor(1, 1, 1, 1);
 	}
+
+	public static void renderTag(MatrixStack matrixStack, Text text,
+		Entity entity, VertexConsumerProvider provider, int color,
+		double height, int limit, float partialTicks)
+	{
+		NameTagsHack nameTagsHack = WurstClient.INSTANCE.getHax().nameTagsHack;
+		MinecraftClient MC = MinecraftClient.getInstance();
+		EntityRenderDispatcher dispatcher = MC.getEntityRenderDispatcher();
+		double dist = dispatcher.getSquaredDistanceToCamera(entity);
+		if(dist > limit * limit)
+			return;
+		matrixStack.push();
+
+		RenderUtils.applyCameraRotationOnly();
+		Vec3d camPos = RenderUtils.getCameraPos();
+		matrixStack.translate(
+			-camPos.x + entity.prevX
+				+ (entity.getX() - entity.prevX) * partialTicks,
+			-camPos.y + entity.prevY
+				+ (entity.getY() - entity.prevY) * partialTicks
+				+ entity.getHeight() + height,
+			-camPos.z + entity.prevZ
+				+ (entity.getZ() - entity.prevZ) * partialTicks);
+
+		matrixStack.multiply(dispatcher.getRotation());
+
+		float scale = 0.025F;
+		if(nameTagsHack.isEnabled())
+		{
+			double distance = MC.player.distanceTo(entity);
+
+			if(distance > 10)
+				scale *= distance / 10;
+		}
+
+		matrixStack.scale(-scale, -scale, scale);
+
+		Matrix4f matrix = matrixStack.peek().getPositionMatrix();
+		float bgOpacity = MC.options.getTextBackgroundOpacity(0.25f);
+		int bgColor = (int)(bgOpacity * 255.0f) << 24;
+		int labelX = -MC.textRenderer.getWidth(text) / 2;
+		MC.textRenderer.draw(text, labelX, 0, color, false, matrix, provider,
+			TextLayerType.NORMAL, bgColor, 15728880);
+		MC.textRenderer.draw(text, labelX, 0, -1, false, matrix, provider,
+			TextLayerType.SEE_THROUGH, 0, 15728880);
+		matrixStack.pop();
+	}
 }