Work done during Train ride

src/main/java/speiger/src/coreengine/math/vector/matrix/Matrix4fStack.java

@@ -0,0 +1,20 @@
+package speiger.src.coreengine.math.vector.matrix;
+
+import speiger.src.collections.objects.lists.ObjectArrayList;
+import speiger.src.collections.utils.Stack;
+
+public class Matrix4fStack extends Matrix4f {
+	Stack<Matrix4f> stack = new ObjectArrayList<>();
+	
+	public void push() {
+		stack.push(new Matrix4f(this));
+	}
+	
+	public void pop() {
+		load(stack.pop());
+	}
+	
+	public int size() {
+		return stack.size();
+	}
+}

src/main/java/speiger/src/coreengine/rendering/gui/renderer/IUIRenderer.java

@@ -6,6 +6,7 @@ import speiger.src.coreengine.math.misc.Facing;
 import speiger.src.coreengine.math.vector.matrix.Matrix4f;
 import speiger.src.coreengine.math.vector.quaternion.Quaternion;
 import speiger.src.coreengine.rendering.guiOld.helper.box.IGuiBox;
+import speiger.src.coreengine.rendering.models.DrawCall;
 import speiger.src.coreengine.rendering.textures.base.ITexture;
 
 public interface IUIRenderer {
@@ -30,7 +31,7 @@ public interface IUIRenderer {
 	public void rotate(Quaternion rotation);
 	
 	public void drawCustom(Consumer<Matrix4f> matrix);
-	
+	public void drawCustom(DrawCall drawcall);
 	
 	
 	public void drawLine(float minX, float minY, float maxX, float maxY, float zLevel, int color);
@@ -52,6 +53,4 @@ public interface IUIRenderer {
 	public default void drawTexturedRect(float minX, float minY, float maxX, float maxY, float zLevel, ITexture texture, int color) { drawTexturedRect(minX, minY, maxX, maxY, zLevel, texture.id(), texture.minU(), texture.minV(), texture.maxU(), texture.maxV(), color); }
 	public default void drawTexturedRect(IGuiBox box, float zLevel, ITexture texture, float minU, float minV, float maxU, float maxV, int color) { drawTexturedRect(box.getMinX(), box.getMinY(), box.getMaxX(), box.getMaxY(), zLevel, texture.id(), minU, minV, maxU, maxV, color); }
 	public void drawTexturedRect(float minX, float minY, float maxX, float maxY, float zLevel, int texture, float minU, float minV, float maxU, float maxV, int color);
-	
-	
 }

src/main/java/speiger/src/coreengine/rendering/gui/renderer/SimpleUIRenderer.java

@@ -0,0 +1,115 @@
+package speiger.src.coreengine.rendering.gui.renderer;
+
+import java.util.function.Consumer;
+
+import speiger.src.collections.objects.lists.ObjectArrayList;
+import speiger.src.collections.utils.Stack;
+import speiger.src.coreengine.math.misc.Facing;
+import speiger.src.coreengine.math.vector.matrix.Matrix4f;
+import speiger.src.coreengine.math.vector.quaternion.Quaternion;
+import speiger.src.coreengine.rendering.guiOld.helper.box.IGuiBox;
+import speiger.src.coreengine.rendering.models.DrawCall;
+
+public class SimpleUIRenderer implements IUIRenderer {
+	TexturedRect cachedRect = new TexturedRect();
+	Stack<Matrix4f> transformCache = ObjectArrayList.wrap(new Matrix4f());
+	
+	@Override
+	public boolean isInScissors(IGuiBox box) {
+		return false;
+	}
+	
+	@Override
+	public void pushScissors(IGuiBox box) {
+		
+	}
+	
+	@Override
+	public void popScissors() {
+		
+	}
+	
+	@Override
+	public TexturedRect getCachedRect() { return cachedRect; }
+	
+	@Override
+	public void flush() {
+		
+	}
+	
+	@Override
+	public void pushTransform() {
+		transformCache.push(new Matrix4f(transformCache.top()));
+	}
+	
+	@Override
+	public void popTransform() {
+		
+	}
+	
+	@Override
+	public void translate(float z) {
+		
+	}
+	
+	@Override
+	public void translate(float x, float y) {
+		
+	}
+	
+	@Override
+	public void translate(float x, float y, float z) {
+		
+	}
+	
+	@Override
+	public void scale(float scale) {
+		
+	}
+	
+	@Override
+	public void scale(float x, float y) {
+		
+	}
+	
+	@Override
+	public void rotate(Quaternion rotation) {
+		
+	}
+	
+	@Override
+	public void drawCustom(Consumer<Matrix4f> matrix) {
+		
+	}
+	
+	@Override
+	public void drawCustom(DrawCall drawcall) {
+		
+	}
+	
+	@Override
+	public void drawLine(float minX, float minY, float maxX, float maxY, float zLevel, int color) {
+		
+	}
+	
+	@Override
+	public void drawFrame(float minX, float minY, float maxX, float maxY, float zLevel, int color) {
+		
+	}
+	
+	@Override
+	public void drawRect(float minX, float minY, float maxX, float maxY, float zLevel, int color) {
+		
+	}
+	
+	@Override
+	public void drawGradientRect(float minX, float minY, float maxX, float maxY, float zLevel, int startColor, int endColor, Facing facing) {
+		
+	}
+	
+	@Override
+	public void drawTexturedRect(float minX, float minY, float maxX, float maxY, float zLevel, int texture, float minU, float minV, float maxU, float maxV, int color) {
+		
+	}
+	
+}