Enable displaying text

api/src/main/java/com/bartlomiejpluta/base/api/game/gui/GUI.java

@@ -12,13 +12,13 @@ public interface GUI extends Renderable, Disposable {
 
    void drawRectangle(float x, float y, float w, float h);
 
-   void fillColor(Color color);
+   void fillColor(float red, float green, float blue, float alpha);
+
+   void strokeColor(float red, float green, float blue, float alpha);
 
    void setFontFace(String fontUid);
 
    void setFontSize(float size);
 
    void putText(float x, float y, CharSequence text);
-
-   Color createColor(float red, float green, float blue, float alpha);
 }

engine/src/main/java/com/bartlomiejpluta/base/engine/core/gl/render/DefaultRenderer.java

@@ -53,7 +53,7 @@ public class DefaultRenderer implements Renderer {
    }
 
    private void clear() {
-      glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
+      glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    }
 
    private void updateViewport(Screen screen) {

engine/src/main/java/com/bartlomiejpluta/base/engine/gui/render/NanoVGGUI.java

@@ -1,20 +1,17 @@
 package com.bartlomiejpluta.base.engine.gui.render;
 
 import com.bartlomiejpluta.base.api.game.camera.Camera;
-import com.bartlomiejpluta.base.api.game.gui.Color;
 import com.bartlomiejpluta.base.api.game.gui.GUI;
 import com.bartlomiejpluta.base.api.game.gui.Widget;
 import com.bartlomiejpluta.base.api.game.screen.Screen;
 import com.bartlomiejpluta.base.api.internal.render.ShaderManager;
 import com.bartlomiejpluta.base.engine.error.AppException;
 import com.bartlomiejpluta.base.engine.gui.manager.FontManager;
-import com.bartlomiejpluta.base.engine.gui.model.NanoVGColorAdapter;
 import lombok.Getter;
 import lombok.Setter;
+import org.lwjgl.nanovg.NVGColor;
 
 import java.util.HashSet;
-import java.util.LinkedList;
-import java.util.List;
 import java.util.Set;
 
 import static org.lwjgl.nanovg.NanoVG.*;
@@ -28,7 +25,7 @@ public class NanoVGGUI implements GUI {
    @Setter
    private Widget root;
 
-   private final List<NanoVGColorAdapter> createdColors = new LinkedList<>();
+   private NVGColor color;
    private final Set<String> loadedFonts = new HashSet<>();
 
    private final FontManager fontManager;
@@ -40,6 +37,8 @@ public class NanoVGGUI implements GUI {
    public void init(Screen screen) {
       context = nvgCreate(NVG_ANTIALIAS | NVG_STENCIL_STROKES);
 
+      color = NVGColor.create();
+
       if (context == NULL) {
          throw new AppException("Could not onCreate NanoVG");
       }
@@ -66,22 +65,31 @@ public class NanoVGGUI implements GUI {
       nvgRect(context, x, y, w, h);
    }
 
-   @Override
-   public void fillColor(Color color) {
-      nvgFillColor(context, (NanoVGColorAdapter) color);
-      nvgFill(context);
-   }
-
    @Override
    public void putText(float x, float y, CharSequence text) {
       nvgText(context, x, y, text);
    }
 
    @Override
-   public Color createColor(float red, float green, float blue, float alpha) {
-      var color = new NanoVGColorAdapter(red, green, blue, alpha);
-      createdColors.add(color);
-      return color;
+   public void fillColor(float red, float green, float blue, float alpha) {
+      color.r(red);
+      color.g(green);
+      color.b(blue);
+      color.a(alpha);
+
+      nvgFillColor(context, color);
+      nvgFill(context);
+   }
+
+   @Override
+   public void strokeColor(float red, float green, float blue, float alpha) {
+      color.r(red);
+      color.g(green);
+      color.b(blue);
+      color.a(alpha);
+
+      nvgStrokeColor(context, color);
+      nvgFill(context);
    }
 
    @Override
@@ -102,7 +110,7 @@ public class NanoVGGUI implements GUI {
 
    @Override
    public void dispose() {
-      createdColors.forEach(NanoVGColorAdapter::dispose);
+      color.free();
       nvgDelete(context);
    }
 }

engine/src/main/java/com/bartlomiejpluta/base/engine/ui/GLFWScreen.java

@@ -112,9 +112,6 @@ public class GLFWScreen implements Screen {
       glEnable(GL_BLEND);
       glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 
-      // Required by GUI
-      glEnable(GL_STENCIL_TEST);
-
       // Set the clear color
       clear(0.0f, 0.0f, 0.0f, 0.0f);
    }
@@ -137,7 +134,6 @@ public class GLFWScreen implements Screen {
 
    @Override
    public void restoreState() {
-      glEnable(GL_STENCIL_TEST);
       glEnable(GL_BLEND);
       glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
    }