Created Hud class to implement hud using nanovg.

Author: brokenprogrammer

.classpath

@@ -27,5 +27,10 @@
 			<attribute name="maven.pomderived" value="true"/>
 		</attributes>
 	</classpathentry>
+	<classpathentry kind="con" path="org.jetbrains.kotlin.core.KOTLIN_CONTAINER">
+		<attributes>
+			<attribute name="maven.pomderived" value="true"/>
+		</attributes>
+	</classpathentry>
 	<classpathentry kind="output" path="target/classes"/>
 </classpath>

.idea/workspace.xml

@@ -5,6 +5,11 @@
 	<projects>
 	</projects>
 	<buildSpec>
+		<buildCommand>
+			<name>org.jetbrains.kotlin.ui.kotlinBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
 		<buildCommand>
 			<name>org.eclipse.jdt.core.javabuilder</name>
 			<arguments>
@@ -19,5 +24,13 @@
 	<natures>
 		<nature>org.eclipse.jdt.core.javanature</nature>
 		<nature>org.eclipse.m2e.core.maven2Nature</nature>
+		<nature>org.jetbrains.kotlin.core.kotlinNature</nature>
 	</natures>
+	<linkedResources>
+		<link>
+			<name>kotlin_bin</name>
+			<type>2</type>
+			<locationURI>org.jetbrains.kotlin.core.filesystem:/Mass/kotlin_bin</locationURI>
+		</link>
+	</linkedResources>
 </projectDescription>

.project

@@ -57,6 +57,11 @@
             <artifactId>lwjgl-stb</artifactId>
             <version>${lwjgl.version}</version>
         </dependency>
+        <dependency>
+		    <groupId>org.lwjgl</groupId>
+		    <artifactId>lwjgl-nanovg</artifactId>
+		    <version>${lwjgl.version}</version>
+		</dependency>
         <dependency>
             <groupId>org.lwjgl</groupId>
             <artifactId>lwjgl</artifactId>
@@ -113,6 +118,13 @@
             <classifier>${lwjgl.natives}</classifier>
             <scope>runtime</scope>
         </dependency>
+        <dependency>
+			<groupId>org.lwjgl</groupId>
+			<artifactId>lwjgl-nanovg</artifactId>
+			<version>${lwjgl.version}</version>
+			<classifier>${lwjgl.natives}</classifier>
+			<scope>runtime</scope>
+		</dependency>
         <dependency>
             <groupId>org.joml</groupId>
             <artifactId>joml</artifactId>

pom.xml

@@ -32,6 +32,8 @@
 import me.oskarmendel.mass.gfx.*;
 import me.oskarmendel.mass.gfx.light.DirectionalLight;
 import me.oskarmendel.mass.gfx.weather.Fog;
+import me.oskarmendel.mass.hud.Font;
+import me.oskarmendel.mass.hud.Hud;
 import me.oskarmendel.mass.input.MouseHandler;
 import me.oskarmendel.mass.phys.Collidable;
 import me.oskarmendel.mass.phys.PhysicsSpace;
@@ -109,6 +111,8 @@ public class Game implements Runnable {
     Player player;
 
     Scene scene;
+    Font font;
+    Hud hud;
 
     /**
      * Default constructor for the game.
@@ -156,7 +160,7 @@ public void init() {
         screen.init();
 
         timer.init();
-        
+
         mouseHandler.init(screen);
 
         // Initialize renderer.
@@ -193,6 +197,13 @@ public void init() {
             scene.setSkyBox(skyBox);
 
             entities = new Entity[]{massterBall, room, player};
+            
+            // Initialize the font for the Hud.
+            font = new Font("src/main/resources/font/OpenSans-Bold.ttf");
+            
+            // Initialize the Hud.
+            hud = new Hud(screenOptions, font, SCREEN_WIDTH, SCREEN_HEIGHT);
+            
         } catch (Exception e) {
             e.printStackTrace();
         }
@@ -367,5 +378,7 @@ public void update() {
      */
     public void render() {
         renderer.render(this.screen, this.camera, this.scene, sceneChanged);
+        
+        hud.render(this.screen);
     }
 }

src/main/java/me/oskarmendel/mass/core/Game.java

@@ -298,6 +298,19 @@ public static Matrix4f updateProjectionMatrix(Matrix4f matrix, int width, int he
         return matrix.setPerspective(FOV, aspectRatio, Z_NEAR, Z_FAR);
     }
 
+    /**
+     * Restores the state of the Screen.
+     */
+    public void restore() {
+    	glEnable(GL_DEPTH_TEST);
+        glEnable(GL_STENCIL_TEST);
+        glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+        if (this.screenOptions.getCullFace()) {
+            glEnable(GL_CULL_FACE);
+            glCullFace(GL_BACK);
+        }
+    }
+    
     /**
      * Destroys the window and releases the callbacks.
      */

src/main/java/me/oskarmendel/mass/core/Screen.java

@@ -22,10 +22,11 @@
  * SOFTWARE.
  */
 
-package me.oskarmendel.mass.gfx;
+package me.oskarmendel.mass.hud;
 
-import java.util.Map;
-import java.util.HashMap;
+import me.oskarmendel.mass.util.IOUtil;
+
+import java.nio.ByteBuffer;
 
 /**
  * This class represents a Font that the renderer can handle.
@@ -36,18 +37,25 @@
  */
 public class Font {
 
-	private final Map<Character, Glyph> glyphs;
-	
-	private final Texture texture;
+	/**
+	 * 
+	 */
+	private ByteBuffer fontBuffer;
 
-	private int fontHeight;
-	
-    public Font (Font font, boolean antiAlias) {
-    	glyphs = new HashMap<>();
-    	texture = new Texture();
+	/**
+	 * 
+	 * @param path
+	 * @throws Exception
+	 */
+    public Font (String path) throws Exception{
+    	this.fontBuffer = IOUtil.ioResourceToByteBuffer(path, 150*1024);
     }
-
-    public void draw(String text, float x, float y) {
-    	
+    
+    /**
+     * 
+     * @return
+     */
+    public ByteBuffer getFontBuffer() {
+    	return this.fontBuffer;
     }
 }