1 files changed, 85 insertions, 4 deletions

diff --git a/src/main/java/com/thatgravyboat/skyblockhud/Utils.java b/src/main/java/com/thatgravyboat/skyblockhud/Utils.java
index 5455c0a..e988677 100644
--- a/src/main/java/com/thatgravyboat/skyblockhud/Utils.java
+++ b/src/main/java/com/thatgravyboat/skyblockhud/Utils.java
@@ -1,9 +1,5 @@
 package com.thatgravyboat.skyblockhud;
 
-import java.nio.FloatBuffer;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.LinkedList;
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.entity.EntityPlayerSP;
 import net.minecraft.client.gui.FontRenderer;
@@ -12,16 +8,24 @@ import net.minecraft.client.renderer.GlStateManager;
 import net.minecraft.client.renderer.Tessellator;
 import net.minecraft.client.renderer.WorldRenderer;
 import net.minecraft.client.renderer.vertex.DefaultVertexFormats;
+import net.minecraft.entity.Entity;
 import net.minecraft.init.Items;
 import net.minecraft.item.Item;
 import net.minecraft.item.ItemStack;
 import net.minecraft.nbt.NBTTagCompound;
+import net.minecraft.util.BlockPos;
+import net.minecraft.util.EnumChatFormatting;
 import net.minecraftforge.client.event.RenderGameOverlayEvent;
 import net.minecraftforge.fml.common.Loader;
 import org.lwjgl.BufferUtils;
 import org.lwjgl.opengl.GL11;
 import org.lwjgl.opengl.GL14;
 
+import java.nio.FloatBuffer;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.LinkedList;
+
 public class Utils {
 
     private static LinkedList<Integer> guiScales = new LinkedList<>();
@@ -273,4 +277,81 @@ public class Utils {
         fr.drawString(str, 0, 0, colour, shadow);
         GL11.glTranslatef(-x2, -y2, 0);
     }
+
+    public static void renderWaypointText(String str, BlockPos loc, float partialTicks) {
+        GlStateManager.alphaFunc(516, 0.1F);
+
+        GlStateManager.pushMatrix();
+
+        Entity viewer = Minecraft.getMinecraft().getRenderViewEntity();
+        double viewerX = viewer.lastTickPosX + (viewer.posX - viewer.lastTickPosX) * partialTicks;
+        double viewerY = viewer.lastTickPosY + (viewer.posY - viewer.lastTickPosY) * partialTicks;
+        double viewerZ = viewer.lastTickPosZ + (viewer.posZ - viewer.lastTickPosZ) * partialTicks;
+
+        double x = loc.getX() - viewerX;
+        double y = loc.getY() - viewerY - viewer.getEyeHeight();
+        double z = loc.getZ() - viewerZ;
+
+        double distSq = x*x + y*y + z*z;
+        double dist = Math.sqrt(distSq);
+        if(distSq > 144) {
+            x *= 12/dist;
+            y *= 12/dist;
+            z *= 12/dist;
+        }
+        GlStateManager.translate(x, y, z);
+        GlStateManager.translate(0, viewer.getEyeHeight(), 0);
+
+        drawNametag(str);
+
+        GlStateManager.rotate(-Minecraft.getMinecraft().getRenderManager().playerViewY, 0.0F, 1.0F, 0.0F);
+        GlStateManager.rotate(Minecraft.getMinecraft().getRenderManager().playerViewX, 1.0F, 0.0F, 0.0F);
+        GlStateManager.translate(0, -0.25f, 0);
+        GlStateManager.rotate(-Minecraft.getMinecraft().getRenderManager().playerViewX, 1.0F, 0.0F, 0.0F);
+        GlStateManager.rotate(Minecraft.getMinecraft().getRenderManager().playerViewY, 0.0F, 1.0F, 0.0F);
+
+        drawNametag(EnumChatFormatting.YELLOW.toString()+Math.round(dist)+"m");
+
+        GlStateManager.popMatrix();
+
+        GlStateManager.disableLighting();
+    }
+
+    public static void drawNametag(String str) {
+        FontRenderer fontrenderer = Minecraft.getMinecraft().fontRendererObj;
+        float f = 1.6F;
+        float f1 = 0.016666668F * f;
+        GlStateManager.pushMatrix();
+        GL11.glNormal3f(0.0F, 1.0F, 0.0F);
+        GlStateManager.rotate(-Minecraft.getMinecraft().getRenderManager().playerViewY, 0.0F, 1.0F, 0.0F);
+        GlStateManager.rotate(Minecraft.getMinecraft().getRenderManager().playerViewX, 1.0F, 0.0F, 0.0F);
+        GlStateManager.scale(-f1, -f1, f1);
+        GlStateManager.disableLighting();
+        GlStateManager.depthMask(false);
+        GlStateManager.disableDepth();
+        GlStateManager.enableBlend();
+        GlStateManager.tryBlendFuncSeparate(770, 771, 1, 0);
+        Tessellator tessellator = Tessellator.getInstance();
+        WorldRenderer worldrenderer = tessellator.getWorldRenderer();
+        int i = 0;
+
+        int j = fontrenderer.getStringWidth(str) / 2;
+        GlStateManager.disableTexture2D();
+        worldrenderer.begin(7, DefaultVertexFormats.POSITION_COLOR);
+        worldrenderer.pos(-j - 1, -1 + i, 0.0D).color(0.0F, 0.0F, 0.0F, 0.25F).endVertex();
+        worldrenderer.pos(-j - 1, 8 + i, 0.0D).color(0.0F, 0.0F, 0.0F, 0.25F).endVertex();
+        worldrenderer.pos(j + 1, 8 + i, 0.0D).color(0.0F, 0.0F, 0.0F, 0.25F).endVertex();
+        worldrenderer.pos(j + 1, -1 + i, 0.0D).color(0.0F, 0.0F, 0.0F, 0.25F).endVertex();
+        tessellator.draw();
+        GlStateManager.enableTexture2D();
+        fontrenderer.drawString(str, -fontrenderer.getStringWidth(str) / 2, i, 553648127);
+        GlStateManager.depthMask(true);
+
+        fontrenderer.drawString(str, -fontrenderer.getStringWidth(str) / 2, i, -1);
+
+        GlStateManager.enableDepth();
+        GlStateManager.enableBlend();
+        GlStateManager.color(1.0F, 1.0F, 1.0F, 1.0F);
+        GlStateManager.popMatrix();
+    }
 }