image-based frames for backing elements

buildNumber.properties

@@ -1,3 +1,3 @@
 #maven.buildNumber.plugin properties file
-#Fri Mar 28 19:50:10 EDT 2025
-buildNumber=612
+#Tue Apr 01 15:25:00 EDT 2025
+buildNumber=616

src/main/java/electrosphere/client/ui/menu/mainmenu/worldgen/MenuWorldSelect.java

@@ -91,6 +91,12 @@ public class MenuWorldSelect {
     public static Element createWorldCreationMenu(){
         FormElement rVal = new FormElement();
 
+        //set nav callback
+        WindowUtils.setMainMenuBackoutCallback((NavigationEvent event) -> {
+            WindowUtils.replaceMainMenuContents(MenuWorldSelect.createWorldSelectMenu());
+            return false;
+        });
+
         //text entry (world name)
         Div worldNameInputContainer = Div.createRow();
         worldNameInputContainer.setMarginBottom(20);

src/main/java/electrosphere/engine/Globals.java

@@ -621,10 +621,11 @@ public class Globals {
         "Textures/w1.png",
         "Textures/ow1.png",
         "Textures/ui/WindowBorder.png",
-        "Textures/ui/uiFrame1.png",
-        "Textures/ui/uiFrame2.png",
         "Textures/ui/uiOutline1.png",
         AssetDataStrings.UI_ENGINE_LOGO_1,
+        AssetDataStrings.UI_FRAME_TEXTURE_DEFAULT_1,
+        AssetDataStrings.UI_FRAME_TEXTURE_DEFAULT_2,
+        AssetDataStrings.UI_FRAME_TEXTURE_DEFAULT_3,
         "Textures/ui/circle.png",
         "Textures/ui/square.png",
         "Textures/color/transparent_green.png",

src/main/java/electrosphere/engine/assetmanager/AssetDataStrings.java

@@ -44,6 +44,7 @@ public class AssetDataStrings {
     public static final String UI_ENGINE_LOGO_1 = "Textures/engine/stormenginelogo1.png";
     public static final String UI_FRAME_TEXTURE_DEFAULT_1 = "Textures/ui/uiFrame1.png";
     public static final String UI_FRAME_TEXTURE_DEFAULT_2 = "Textures/ui/uiFrame2.png";
+    public static final String UI_FRAME_TEXTURE_DEFAULT_3 = "Textures/ui/panel-001.png";
 
     /**
      * UI generic audio

src/main/java/electrosphere/renderer/shader/ShaderUtils.java

@@ -38,7 +38,7 @@ public class ShaderUtils {
                 //matrix4f
                 if(value instanceof Matrix4f){
                     Matrix4f currentUniform = (Matrix4f)value;
-                    GL40.glUniformMatrix4fv(uniformLocation, false, currentUniform.get(new float[16]));
+                    GL40.glUniformMatrix4fv(uniformLocation, false, currentUniform.get(BufferUtils.createFloatBuffer(16)));
                     Globals.renderingEngine.checkError();
                     uniformMap.put(uniformLocation,new Matrix4f(currentUniform)); //create new matrix4f to break pointer-matching with equals on cache check
 
@@ -46,7 +46,7 @@ public class ShaderUtils {
                     //matrix4d
                 } else if(value instanceof Matrix4d){
                     Matrix4d currentUniform = (Matrix4d)value;
-                    GL40.glUniformMatrix4fv(uniformLocation, false, currentUniform.get(new float[16]));
+                    GL40.glUniformMatrix4fv(uniformLocation, false, currentUniform.get(BufferUtils.createFloatBuffer(16)));
                     Globals.renderingEngine.checkError();
                     uniformMap.put(uniformLocation,new Matrix4d(currentUniform)); //create new matrix4f to break pointer-matching with equals on cache check
 

src/main/java/electrosphere/renderer/ui/elements/Button.java

@@ -4,13 +4,10 @@ import org.joml.Vector3f;
 
 import electrosphere.engine.Globals;
 import electrosphere.engine.assetmanager.AssetDataStrings;
-import electrosphere.logger.LoggerInterface;
 import electrosphere.renderer.OpenGLState;
 import electrosphere.renderer.RenderPipelineState;
 import electrosphere.renderer.framebuffer.Framebuffer;
 import electrosphere.renderer.model.Material;
-import electrosphere.renderer.model.Model;
-import electrosphere.renderer.texture.Texture;
 import electrosphere.renderer.ui.elementtypes.ClickableElement;
 import electrosphere.renderer.ui.elementtypes.DrawableElement;
 import electrosphere.renderer.ui.elementtypes.Element;
@@ -21,6 +18,7 @@ import electrosphere.renderer.ui.events.Event;
 import electrosphere.renderer.ui.events.FocusEvent;
 import electrosphere.renderer.ui.events.HoverEvent;
 import electrosphere.renderer.ui.events.MouseEvent;
+import electrosphere.renderer.ui.frame.UIFrameUtils;
 
 /**
  * A button element
@@ -29,11 +27,19 @@ public class Button extends StandardContainerElement implements DrawableElement,
 
     static Vector3f COLOR_DEFAULT = new Vector3f(1.0f);
 
+    static float COLOR_FRAME_FOCUSED_DEFAULT = 0.1f;
+    static float COLOR_FRAME_UNFOCUSED_DEFAULT = 0.01f;
+
     /**
      * The color of the backing element
      */
     Vector3f color = new Vector3f(COLOR_DEFAULT);
 
+    /**
+     * The color of the frame
+     */
+    Vector3f frameColor = new Vector3f(COLOR_FRAME_FOCUSED_DEFAULT);
+
     Vector3f boxPosition = new Vector3f();
     Vector3f boxDimensions = new Vector3f();
     Vector3f texPosition = new Vector3f(0,0,0);
@@ -221,38 +227,29 @@ public class Button extends StandardContainerElement implements DrawableElement,
         float ndcY =      (float)this.absoluteToFramebuffer(getAbsoluteY(),framebufferPosY)/framebuffer.getHeight();
         boxPosition = new Vector3f(ndcX,ndcY,0);
         boxDimensions = new Vector3f(ndcWidth,ndcHeight,0);
-        
-        Model planeModel = Globals.assetManager.fetchModel(Globals.imagePlaneModelID);
-        Texture windowFrame = null;
-        if(this.isFocused()){
-            windowFrame = Globals.assetManager.fetchTexture("Textures/ui/uiFrame2.png");
-        } else {
-            windowFrame = Globals.assetManager.fetchTexture("Textures/ui/uiFrame1.png");
-        }
 
         //this call binds the screen as the "texture" we're rendering to
         //have to call before actually rendering
         framebuffer.bind(openGLState);
         openGLState.glViewport(framebuffer.getWidth(), framebuffer.getHeight());
 
-        //error if assets are null
-        if(planeModel == null || windowFrame == null){
-            LoggerInterface.loggerRenderer.ERROR("Window unable to find plane model or window frame!!", new Exception());
-        }
-
         //render background of window
-        if(planeModel != null && windowFrame != null){
-            planeModel.pushUniformToMesh("plane", "mPosition", boxPosition);
-            planeModel.pushUniformToMesh("plane", "mDimension", boxDimensions);
-            planeModel.pushUniformToMesh("plane", "tPosition", texPosition);
-            planeModel.pushUniformToMesh("plane", "tDimension", texScale);
-            planeModel.pushUniformToMesh(planeModel.getMeshes().get(0).getMeshName(), "color", color);
-            customMat.setTexturePointer(windowFrame.getTexturePointer());
-            planeModel.getMeshes().get(0).setMaterial(customMat);
-            planeModel.drawUI();
+        if(this.isFocused()){
+            frameColor.set(COLOR_FRAME_FOCUSED_DEFAULT);
+            UIFrameUtils.drawFrame(
+                AssetDataStrings.UI_FRAME_TEXTURE_DEFAULT_3, frameColor, 48, 12,
+                this.getAbsoluteX(), this.getAbsoluteY(), this.getWidth(), this.getHeight(), 
+                framebuffer, framebufferPosX, framebufferPosY
+            );
+        } else {
+            frameColor.set(COLOR_FRAME_UNFOCUSED_DEFAULT);
+            UIFrameUtils.drawFrame(
+                AssetDataStrings.UI_FRAME_TEXTURE_DEFAULT_3, frameColor, 48, 12,
+                this.getAbsoluteX(), this.getAbsoluteY(), this.getWidth(), this.getHeight(), 
+                framebuffer, framebufferPosX, framebufferPosY
+            );
         }
 
-
         //
         //Draw children elements
         for(Element child : childList){

src/main/java/electrosphere/renderer/ui/elements/TextInput.java

@@ -3,13 +3,10 @@ package electrosphere.renderer.ui.elements;
 import electrosphere.engine.Globals;
 import electrosphere.engine.assetmanager.AssetDataStrings;
 import electrosphere.engine.signal.Signal.SignalType;
-import electrosphere.logger.LoggerInterface;
 import electrosphere.renderer.OpenGLState;
 import electrosphere.renderer.RenderPipelineState;
 import electrosphere.renderer.framebuffer.Framebuffer;
 import electrosphere.renderer.model.Material;
-import electrosphere.renderer.model.Model;
-import electrosphere.renderer.texture.Texture;
 import electrosphere.renderer.ui.elementtypes.ClickableElement;
 import electrosphere.renderer.ui.elementtypes.DrawableElement;
 import electrosphere.renderer.ui.elementtypes.Element;
@@ -22,6 +19,7 @@ import electrosphere.renderer.ui.events.FocusEvent;
 import electrosphere.renderer.ui.events.KeyboardEvent;
 import electrosphere.renderer.ui.events.ValueChangeEvent;
 import electrosphere.renderer.ui.font.Font;
+import electrosphere.renderer.ui.frame.UIFrameUtils;
 
 import org.joml.Vector3f;
 import org.lwjgl.util.yoga.Yoga;
@@ -144,35 +142,25 @@ public class TextInput extends StandardContainerElement implements DrawableEleme
         float ndcY =      (float)this.absoluteToFramebuffer(getAbsoluteY(),framebufferPosY)/framebuffer.getHeight();
         boxPosition = new Vector3f(ndcX,ndcY,0);
         boxDimensions = new Vector3f(ndcWidth,ndcHeight,0);
-        
-        Model planeModel = Globals.assetManager.fetchModel(Globals.imagePlaneModelID);
-        Texture windowFrame = null;
-        if(this.isFocused()){
-            windowFrame = Globals.assetManager.fetchTexture("Textures/ui/uiFrame2.png");
-        } else {
-            windowFrame = Globals.assetManager.fetchTexture("Textures/ui/uiFrame1.png");
-        }
 
         //this call binds the screen as the "texture" we're rendering to
         //have to call before actually rendering
         framebuffer.bind(openGLState);
         openGLState.glViewport(framebuffer.getWidth(), framebuffer.getHeight());
 
-        //error if assets are null
-        if(planeModel == null || windowFrame == null){
-            LoggerInterface.loggerRenderer.ERROR("Window unable to find plane model or window frame!!", new Exception());
-        }
-
         //render background of window
-        if(planeModel != null && windowFrame != null){
-            planeModel.pushUniformToMesh("plane", "mPosition", boxPosition);
-            planeModel.pushUniformToMesh("plane", "mDimension", boxDimensions);
-            planeModel.pushUniformToMesh("plane", "tPosition", texPosition);
-            planeModel.pushUniformToMesh("plane", "tDimension", texScale);
-            planeModel.pushUniformToMesh(planeModel.getMeshes().get(0).getMeshName(), "color", backgroundColor);
-            customMat.setTexturePointer(windowFrame.getTexturePointer());
-            planeModel.getMeshes().get(0).setMaterial(customMat);
-            planeModel.drawUI();
+        if(this.isFocused()){
+            UIFrameUtils.drawFrame(
+                AssetDataStrings.UI_FRAME_TEXTURE_DEFAULT_3, backgroundColor, 48, 12,
+                this.getAbsoluteX(), this.getAbsoluteY(), this.getWidth(), this.getHeight(), 
+                framebuffer, framebufferPosX, framebufferPosY
+            );
+        } else {
+            UIFrameUtils.drawFrame(
+                AssetDataStrings.UI_FRAME_TEXTURE_DEFAULT_3, backgroundColor, 48, 12,
+                this.getAbsoluteX(), this.getAbsoluteY(), this.getWidth(), this.getHeight(), 
+                framebuffer, framebufferPosX, framebufferPosY
+            );
         }
 
 

src/main/java/electrosphere/renderer/ui/elements/ToggleInput.java

@@ -158,6 +158,8 @@ public class ToggleInput extends StandardDrawableElement implements ClickableEle
             planeModel.getMeshes().get(0).setMaterial(barMat);
             planeModel.pushUniformToMesh("plane", "mPosition", boxPosition);
             planeModel.pushUniformToMesh("plane", "mDimension", boxDimensions);
+            planeModel.pushUniformToMesh("plane", "tPosition", new Vector3f(0,0,0));
+            planeModel.pushUniformToMesh("plane", "tDimension", new Vector3f(1,1,0));
             planeModel.pushUniformToMesh(planeModel.getMeshes().get(0).getMeshName(), "color", barColor);
             planeModel.drawUI();
 
@@ -171,6 +173,8 @@ public class ToggleInput extends StandardDrawableElement implements ClickableEle
             planeModel.getMeshes().get(0).setMaterial(circleMat);
             planeModel.pushUniformToMesh("plane", "mPosition", boxPosition);
             planeModel.pushUniformToMesh("plane", "mDimension", boxDimensions);
+            planeModel.pushUniformToMesh("plane", "tPosition", new Vector3f(0,0,0));
+            planeModel.pushUniformToMesh("plane", "tDimension", new Vector3f(1,1,0));
             planeModel.pushUniformToMesh(planeModel.getMeshes().get(0).getMeshName(), "color", circleColor);
             planeModel.drawUI();
         } else {

src/main/java/electrosphere/renderer/ui/frame/UIFrameUtils.java

@@ -0,0 +1,300 @@
+package electrosphere.renderer.ui.frame;
+
+import org.joml.Vector3f;
+
+import electrosphere.engine.Globals;
+import electrosphere.renderer.framebuffer.Framebuffer;
+import electrosphere.renderer.model.Material;
+import electrosphere.renderer.model.Model;
+import electrosphere.renderer.texture.Texture;
+
+/**
+ * Utilities to draw frames behind elements
+ */
+public class UIFrameUtils {
+
+    /**
+     * The material used for drawing the texture for the frame
+     */
+    private static final Material customMat = new Material();
+
+    /**
+     * Stores the position of the box to draw
+     */
+    private static final Vector3f boxPosition = new Vector3f();
+
+    /**
+     * Stores the dimensions of the box to draw
+     */
+    private static final Vector3f boxDimensions = new Vector3f();
+
+    /**
+     * Stores the position of the texture to draw on the box
+     */
+    private static final Vector3f texPosition = new Vector3f();
+
+    /**
+     * Stores the dimensions of the texture to draw on the box
+     */
+    private static final Vector3f texScale = new Vector3f();
+
+    /**
+     * Draws a frame
+     * @param frame The texture of the frame to draw
+     * @param color The color to draw
+     * @param frameCornerDim The dimensions of a corner of the frame texture
+     * @param posX The absolute x position to draw the frame
+     * @param posY The absolute y position to draw the frame
+     * @param width The width of the frame
+     * @param height The height of the frame
+     * @param framebuffer The framebuffer to draw to
+     * @param framebufferPosX The x position of the framebuffer
+     * @param framebufferPosY The y position of the framebuffer
+     */
+    public static void drawFrame(
+        String frame, Vector3f color, int frameTexDim, int frameCornerDim,
+        int posX, int posY, int width, int height,
+        Framebuffer framebuffer, int framebufferPosX, int framebufferPosY
+    ){
+        Model planeModel = Globals.assetManager.fetchModel(Globals.imagePlaneModelID);
+        Texture windowFrame = Globals.assetManager.fetchTexture(frame);
+        //render background of window
+        if(planeModel != null && windowFrame != null){
+            //set materials + uniforms
+            customMat.setTexturePointer(windowFrame.getTexturePointer());
+            planeModel.getMeshes().get(0).setMaterial(customMat);
+            planeModel.pushUniformToMesh(planeModel.getMeshes().get(0).getMeshName(), "color", color);
+
+
+            //top left corner
+            boxPosition.set(
+                (float)UIFrameUtils.absoluteToFramebuffer(posX,framebufferPosX)/framebuffer.getWidth(),
+                (float)UIFrameUtils.absoluteToFramebuffer(posY,framebufferPosY)/framebuffer.getHeight(),
+                0
+            );
+            boxDimensions.set(
+                (float)frameCornerDim/framebuffer.getWidth(),
+                (float)frameCornerDim/framebuffer.getHeight(),
+                0
+            );
+            texPosition.set(
+                0,
+                ((frameTexDim - frameCornerDim) / (float)frameTexDim),
+                0
+            );
+            texScale.set(
+                (frameCornerDim / (float)frameTexDim),
+                (frameCornerDim / (float)frameTexDim),
+                0
+            );
+            UIFrameUtils.drawBox(planeModel);
+
+            //top center side
+            boxPosition.set(
+                (float)UIFrameUtils.absoluteToFramebuffer(posX + frameCornerDim,framebufferPosX)/framebuffer.getWidth(),
+                (float)UIFrameUtils.absoluteToFramebuffer(posY,framebufferPosY)/framebuffer.getHeight(),
+                0
+            );
+            boxDimensions.set(
+                (float)(width - (frameCornerDim * 2))/framebuffer.getWidth(),
+                (float)frameCornerDim/framebuffer.getHeight(),
+                0
+            );
+            texPosition.set(
+                (frameCornerDim / (float)frameTexDim),
+                ((frameTexDim - frameCornerDim) / (float)frameTexDim),
+                0
+            );
+            texScale.set(
+                ((frameTexDim - (frameCornerDim * 2)) / (float)frameTexDim),
+                (frameCornerDim / (float)frameTexDim),
+                0
+            );
+            UIFrameUtils.drawBox(planeModel);
+
+            //top right corner
+            boxPosition.set(
+                (float)UIFrameUtils.absoluteToFramebuffer((posX + width) - frameCornerDim,framebufferPosX)/framebuffer.getWidth(),
+                (float)UIFrameUtils.absoluteToFramebuffer(posY,framebufferPosY)/framebuffer.getHeight(),
+                0
+            );
+            boxDimensions.set(
+                (float)frameCornerDim/framebuffer.getWidth(),
+                (float)frameCornerDim/framebuffer.getHeight(),
+                0
+            );
+            texPosition.set(
+                ((frameTexDim - frameCornerDim) / (float)frameTexDim),
+                ((frameTexDim - frameCornerDim) / (float)frameTexDim),
+                0
+            );
+            texScale.set(
+                (frameCornerDim / (float)frameTexDim),
+                (frameCornerDim / (float)frameTexDim),
+                0
+            );
+            UIFrameUtils.drawBox(planeModel);
+
+            //center left side
+            boxPosition.set(
+                (float)UIFrameUtils.absoluteToFramebuffer(posX,framebufferPosX)/framebuffer.getWidth(),
+                (float)UIFrameUtils.absoluteToFramebuffer(posY + frameCornerDim,framebufferPosY)/framebuffer.getHeight(),
+                0
+            );
+            boxDimensions.set(
+                (float)frameCornerDim/framebuffer.getWidth(),
+                (float)(height - (frameCornerDim * 2))/framebuffer.getHeight(),
+                0
+            );
+            texPosition.set(
+                0,
+                (frameCornerDim / (float)frameTexDim),
+                0
+            );
+            texScale.set(
+                (frameCornerDim / (float)frameTexDim),
+                ((frameTexDim - (frameCornerDim * 2)) / (float)frameTexDim),
+                0
+            );
+            UIFrameUtils.drawBox(planeModel);
+
+            //center point
+            boxPosition.set(
+                (float)UIFrameUtils.absoluteToFramebuffer(posX + frameCornerDim,framebufferPosX)/framebuffer.getWidth(),
+                (float)UIFrameUtils.absoluteToFramebuffer(posY + frameCornerDim,framebufferPosY)/framebuffer.getHeight(),
+                0
+            );
+            boxDimensions.set(
+                (float)(width - (frameCornerDim * 2))/framebuffer.getWidth(),
+                (float)(height - (frameCornerDim * 2))/framebuffer.getHeight(),
+                0
+            );
+            texPosition.set(
+                (frameCornerDim / (float)frameTexDim),
+                (frameCornerDim / (float)frameTexDim),
+                0
+            );
+            texScale.set(
+                ((frameTexDim - (frameCornerDim * 2)) / (float)frameTexDim),
+                ((frameTexDim - (frameCornerDim * 2)) / (float)frameTexDim),
+                0
+            );
+            UIFrameUtils.drawBox(planeModel);
+
+            //center right side
+            boxPosition.set(
+                (float)UIFrameUtils.absoluteToFramebuffer((posX + width) - frameCornerDim,framebufferPosX)/framebuffer.getWidth(),
+                (float)UIFrameUtils.absoluteToFramebuffer(posY + frameCornerDim,framebufferPosY)/framebuffer.getHeight(),
+                0
+            );
+            boxDimensions.set(
+                (float)frameCornerDim/framebuffer.getWidth(),
+                (float)(height - (frameCornerDim * 2))/framebuffer.getHeight(),
+                0
+            );
+            texPosition.set(
+                ((frameTexDim - frameCornerDim) / (float)frameTexDim),
+                (frameCornerDim / (float)frameTexDim),
+                0
+            );
+            texScale.set(
+                (frameCornerDim / (float)frameTexDim),
+                ((frameTexDim - (frameCornerDim * 2)) / (float)frameTexDim),
+                0
+            );
+            UIFrameUtils.drawBox(planeModel);
+
+            //bottom left corner
+            boxPosition.set(
+                (float)UIFrameUtils.absoluteToFramebuffer(posX,framebufferPosX)/framebuffer.getWidth(),
+                (float)UIFrameUtils.absoluteToFramebuffer((posY + height) - frameCornerDim,framebufferPosY)/framebuffer.getHeight(),
+                0
+            );
+            boxDimensions.set(
+                (float)frameCornerDim/framebuffer.getWidth(),
+                (float)frameCornerDim/framebuffer.getHeight(),
+                0
+            );
+            texPosition.set(
+                0,
+                0,
+                0
+            );
+            texScale.set(
+                (frameCornerDim / (float)frameTexDim),
+                (frameCornerDim / (float)frameTexDim),
+                0
+            );
+            UIFrameUtils.drawBox(planeModel);
+
+            //bottom center side
+            boxPosition.set(
+                (float)UIFrameUtils.absoluteToFramebuffer(posX + frameCornerDim,framebufferPosX)/framebuffer.getWidth(),
+                (float)UIFrameUtils.absoluteToFramebuffer((posY + height) - frameCornerDim,framebufferPosY)/framebuffer.getHeight(),
+                0
+            );
+            boxDimensions.set(
+                (float)(width - (frameCornerDim * 2))/framebuffer.getWidth(),
+                (float)frameCornerDim/framebuffer.getHeight(),
+                0
+            );
+            texPosition.set(
+                (frameCornerDim / (float)frameTexDim),
+                0,
+                0
+            );
+            texScale.set(
+                ((frameTexDim - (frameCornerDim * 2)) / (float)frameTexDim),
+                (frameCornerDim / (float)frameTexDim),
+                0
+            );
+            UIFrameUtils.drawBox(planeModel);
+
+            //bottom right corner
+            boxPosition.set(
+                (float)UIFrameUtils.absoluteToFramebuffer((posX + width) - frameCornerDim,framebufferPosX)/framebuffer.getWidth(),
+                (float)UIFrameUtils.absoluteToFramebuffer((posY + height) - frameCornerDim,framebufferPosY)/framebuffer.getHeight(),
+                0
+            );
+            boxDimensions.set(
+                (float)frameCornerDim/framebuffer.getWidth(),
+                (float)frameCornerDim/framebuffer.getHeight(),
+                0
+            );
+            texPosition.set(
+                ((frameTexDim - frameCornerDim) / (float)frameTexDim),
+                0,
+                0
+            );
+            texScale.set(
+                (frameCornerDim / (float)frameTexDim),
+                (frameCornerDim / (float)frameTexDim),
+                0
+            );
+            UIFrameUtils.drawBox(planeModel);
+        }
+    }
+
+    /**
+     * Draws a box for the frame
+     * @param planeModel The model to use
+     */
+    private static void drawBox(Model planeModel){
+        planeModel.pushUniformToMesh("plane", "mPosition", boxPosition);
+        planeModel.pushUniformToMesh("plane", "mDimension", boxDimensions);
+        planeModel.pushUniformToMesh("plane", "tPosition", texPosition);
+        planeModel.pushUniformToMesh("plane", "tDimension", texScale);
+        planeModel.drawUI();
+    }
+
+    /**
+     * Converts an absolute (to the screen) position to a position within a framebuffer
+     * @param absolutePos The absolute position
+     * @param framebufferPos The position of the framebuffer on the screen
+     * @return The position within the framebuffer
+     */
+    public static int absoluteToFramebuffer(int absolutePos, int framebufferPos){
+        return absolutePos - framebufferPos;
+    }
+    
+}