feat(theme): implement background pattern rendering for various pattern renderers

src/main/java/de/extio/game_engine/renderer/g2d/bo/rendering/G2DDrawBackground.java

@@ -17,6 +17,7 @@ import org.springframework.stereotype.Component;
 import de.extio.game_engine.renderer.RendererControl;
 import de.extio.game_engine.renderer.g2d.G2DRendererCondition;
 import de.extio.game_engine.renderer.g2d.G2DRendererControl;
+import de.extio.game_engine.renderer.g2d.theme.G2DThemeManager;
 import de.extio.game_engine.renderer.model.RenderingBo;
 import de.extio.game_engine.renderer.model.RenderingBoLayer;
 import de.extio.game_engine.renderer.model.color.ImmutableRgbaColor;
@@ -39,12 +40,6 @@ public class G2DDrawBackground extends G2DAbstractRenderingBo {
 	
 	private final static int[] BUILTIN_SCROLL_OFFSET_X = new int[2];
 	
-	private final static List<Star> STARS = new ArrayList<>();
-	
-	private final static List<Star> REFERENCE_STARS = new ArrayList<>();
-	
-	private static CoordI2 STARS_LAST_VIEWPORT = ImmutableCoordI2.create();
-	
 	private final CoordI2 bgrOffset = MutableCoordI2.create();
 	
 	private final CoordI2 sourceOffset = MutableCoordI2.create();
@@ -97,7 +92,7 @@ public class G2DDrawBackground extends G2DAbstractRenderingBo {
 				this.bgrOffset.setXY(this.rendererData.getUiOptions().getBackgroundOffset0()).add(BUILTIN_SCROLL_OFFSET_X[0], 0), windowDim);
 		
 		this.scroll(1, this.rendererData.getUiOptions().isBackgroundScrolling1(), this.rendererData.getUiOptions().isBackgroundScrollingReverse1(), windowDim);
-		this.drawStars(graphics, this.bgrOffset.setXY(this.rendererData.getUiOptions().getBackgroundOffset1()).add(BUILTIN_SCROLL_OFFSET_X[1], 0), windowDim);
+		((G2DThemeManager) this.rendererData.getThemeManager()).getCurrentPatternRenderer().drawBackgroundPattern(graphics, this.bgrOffset.setXY(this.rendererData.getUiOptions().getBackgroundOffset1()).add(BUILTIN_SCROLL_OFFSET_X[1], 0), windowDim);
 	}
 	
 	private void tileBackground(final Graphics2D graphics, final int index, final StaticResource backgroundResource, final CoordI2 offset, final CoordI2 viewPort) {
@@ -146,19 +141,6 @@ public class G2DDrawBackground extends G2DAbstractRenderingBo {
 		} while (this.destPosition.getY() < viewPort.getY());
 	}
 	
-	private void drawStars(final Graphics2D graphics, final CoordI2 offset, final CoordI2 viewPort) {
-		this.generateStars(viewPort);
-		
-		for (final Star element : STARS) {
-			graphics.setColor(element.color.toAwtColor());
-			graphics.fillOval(
-					Math.floorMod(element.position.getX() - offset.getX(), viewPort.getX()),
-					Math.floorMod(element.position.getY() - offset.getY(), viewPort.getY()),
-					element.radius.getX(),
-					element.radius.getY());
-		}
-	}
-	
 	private void scroll(final int index, final boolean scrolling, final boolean reverse, final CoordI2 viewPort) {
 		if (!scrolling) {
 			BUILTIN_SCROLL_OFFSET_X[index] = 0;
@@ -235,50 +217,4 @@ public class G2DDrawBackground extends G2DAbstractRenderingBo {
 		}
 	}
 	
-	private void generateStars(final CoordI2 viewPort) {
-		if (REFERENCE_STARS.isEmpty()) {
-			final var rand = ThreadLocalXorShift128Random.current();
-
-			for (var i = 0; i < 350; i++) {
-				final var position = ImmutableCoordI2.create(rand.nextInt(RendererControl.REFERENCE_RESOLUTION.getX()), rand.nextInt(RendererControl.REFERENCE_RESOLUTION.getY()));
-				final var radius = ImmutableCoordI2.create(rand.nextInt(3) + 2, rand.nextInt(3) + 2);
-				final var color = new ImmutableRgbaColor(rand.nextInt(30) + 100, rand.nextInt(30) + 100, rand.nextInt(30) + 130);
-				
-				REFERENCE_STARS.add(new Star(position, radius, color));
-				STARS.add(new Star(position, radius, color));
-			}
-		}
-		
-		if (!viewPort.equals(STARS_LAST_VIEWPORT)) {
-			final double scaleX = (double) viewPort.getX() / RendererControl.REFERENCE_RESOLUTION.getX();
-			final double scaleY = (double) viewPort.getY() / RendererControl.REFERENCE_RESOLUTION.getY();
-
-			for (int i = 0; i < REFERENCE_STARS.size(); i++) {
-				final var refStar = REFERENCE_STARS.get(i);
-				final var star = STARS.get(i);
-				
-				star.position = ImmutableCoordI2.create(
-						(int) (refStar.position.getX() * scaleX),
-						(int) (refStar.position.getY() * scaleY));
-			}
-			STARS_LAST_VIEWPORT = viewPort.toImmutableCoordI2();
-		}
-	}
-	
-	private static class Star {
-		
-		CoordI2 position;
-		
-		CoordI2 radius;
-		
-		RgbaColor color;
-		
-		Star(final CoordI2 position, final CoordI2 radius, final RgbaColor color) {
-			super();
-			this.position = position;
-			this.radius = radius;
-			this.color = color;
-		}
-		
-	}
 }

src/main/java/de/extio/game_engine/renderer/g2d/theme/BevelPatternRenderer.java

@@ -7,6 +7,7 @@ import org.springframework.context.annotation.Conditional;
 import org.springframework.stereotype.Component;
 
 import de.extio.game_engine.renderer.g2d.G2DRendererCondition;
+import de.extio.game_engine.spatial2.model.CoordI2;
 
 /**
  * Implementation of PatternRenderer that draws borders and panels in a classic "Bevel" style.
@@ -27,7 +28,8 @@ public class BevelPatternRenderer implements PatternRenderer {
 		if (hsb[2] < 0.5f) {
 			light = color.brighter();
 			dark = color;
-		} else {
+		}
+		else {
 			light = color;
 			dark = color.darker();
 		}
@@ -71,14 +73,16 @@ public class BevelPatternRenderer implements PatternRenderer {
 		
 		// Button bevel
 		int bevelStrength = (int) (2 * scaleFactor);
-		if (bevelStrength < 1) bevelStrength = 1;
+		if (bevelStrength < 1)
+			bevelStrength = 1;
 		
 		final Color highlight = theme.getBorderOuter().toColor();
 		final Color shadow = theme.getBorderInner().toColor();
 		
 		if (pressed) {
 			drawBevel(g2d, 0, 0, width, height, bevelStrength, false, highlight, shadow);
-		} else {
+		}
+		else {
 			drawBevel(g2d, 0, 0, width, height, bevelStrength, true, highlight, shadow);
 		}
 		
@@ -88,14 +92,14 @@ public class BevelPatternRenderer implements PatternRenderer {
 			final int offset = pressed ? 1 : 0;
 			
 			// Draw a simple X
-			final int padding = (int)(4 * scaleFactor);
+			final int padding = (int) (4 * scaleFactor);
 			final int x1 = padding + offset;
 			final int y1 = padding + offset;
 			final int x2 = width - padding + offset;
 			final int y2 = height - padding + offset;
 			
 			final Graphics2D g2 = (Graphics2D) g2d.create();
-			g2.setStroke(new java.awt.BasicStroke((float)(2 * scaleFactor)));
+			g2.setStroke(new java.awt.BasicStroke((float) (2 * scaleFactor)));
 			g2.drawLine(x1, y1, x2, y2);
 			g2.drawLine(x1, y2, x2, y1);
 			g2.dispose();
@@ -118,4 +122,18 @@ public class BevelPatternRenderer implements PatternRenderer {
 			g2d.drawLine(x + width - 1 - i, y + i, x + width - 1 - i, y + height - 1 - i); // Right
 		}
 	}
+	
+	@Override
+	public void drawBackgroundPattern(final Graphics2D g2d, final CoordI2 offset, final CoordI2 viewPort) {
+		g2d.setColor(new Color(255, 255, 255, 35));
+		final int spacing = 20;
+		final int offX = Math.floorMod(offset.getX(), spacing);
+		final int offY = Math.floorMod(offset.getY(), spacing);
+		
+		for (int x = -spacing; x < viewPort.getX() + spacing; x += spacing) {
+			for (int y = -spacing; y < viewPort.getY() + spacing; y += spacing) {
+				g2d.fillRect(x + offX, y + offY, 2, 2);
+			}
+		}
+	}
 }

src/main/java/de/extio/game_engine/renderer/g2d/theme/BlueprintPatternRenderer.java

@@ -4,12 +4,14 @@ import java.awt.BasicStroke;
 import java.awt.Color;
 import java.awt.Graphics2D;
 import java.awt.Stroke;
+import java.awt.image.BufferedImage;
 
 import org.springframework.context.annotation.Conditional;
 import org.springframework.stereotype.Component;
 
 import de.extio.game_engine.renderer.g2d.G2DRendererCondition;
 import de.extio.game_engine.renderer.g2d.bo.rendering.G2DDrawFont;
+import de.extio.game_engine.spatial2.model.CoordI2;
 
 /**
  * Implementation of PatternRenderer that draws a technical "Blueprint" style with grids and measurement markers.
@@ -126,4 +128,41 @@ public class BlueprintPatternRenderer implements PatternRenderer {
 			g2.dispose();
 		}
 	}
+
+	private java.awt.image.BufferedImage patternCache;
+
+	private java.awt.image.BufferedImage getPatternCache() {
+		if (this.patternCache == null) {
+			final int gridSize = 50;
+			this.patternCache = new BufferedImage(gridSize, gridSize, java.awt.image.BufferedImage.TYPE_INT_ARGB);
+			final Graphics2D g2d = this.patternCache.createGraphics();
+			
+			g2d.setBackground(new Color(0, 0, 0, 0));
+			g2d.clearRect(0, 0, gridSize, gridSize);
+			
+			g2d.setColor(new Color(255, 255, 255, 35));
+			g2d.setStroke(new BasicStroke(1f));
+			
+			g2d.drawLine(0, 0, 0, gridSize);
+			g2d.drawLine(0, 0, gridSize, 0);
+			
+			g2d.dispose();
+		}
+		return this.patternCache;
+	}
+
+	@Override
+	public void drawBackgroundPattern(final Graphics2D g2d, final CoordI2 offset, final CoordI2 viewPort) {
+		final var cache = this.getPatternCache();
+		final int gridSize = cache.getWidth();
+		
+		final int offX = Math.floorMod(offset.getX(), gridSize);
+		final int offY = Math.floorMod(offset.getY(), gridSize);
+		
+		for (int x = -gridSize; x <= viewPort.getX() + gridSize; x += gridSize) {
+			for (int y = -gridSize; y <= viewPort.getY() + gridSize; y += gridSize) {
+				g2d.drawImage(cache, x + offX, y + offY, null);
+			}
+		}
+	}
 }

src/main/java/de/extio/game_engine/renderer/g2d/theme/DreamPatternRenderer.java

@@ -2,12 +2,14 @@ package de.extio.game_engine.renderer.g2d.theme;
 
 import java.awt.Color;
 import java.awt.Graphics2D;
+import java.awt.image.BufferedImage;
 
 import org.springframework.context.annotation.Conditional;
 import org.springframework.stereotype.Component;
 
 import de.extio.game_engine.renderer.g2d.G2DRendererCondition;
 import de.extio.game_engine.renderer.g2d.bo.rendering.G2DDrawFont;
+import de.extio.game_engine.spatial2.model.CoordI2;
 
 @Conditional(G2DRendererCondition.class)
 @Component
@@ -96,4 +98,41 @@ public class DreamPatternRenderer implements PatternRenderer {
 		final var textDim = G2DDrawFont.getTextDimensions("X", g2d, 15, scaleFactor);
 		G2DDrawFont.renderText(g2d, textDim, 1.0, ((width - textDim.getX()) / 2), ((height - textDim.getY()) / 2), fontSize, "X");
 	}
+
+	private java.awt.image.BufferedImage patternCache;
+
+	private java.awt.image.BufferedImage getPatternCache() {
+		if (this.patternCache == null) {
+			final int cellSize = 100;
+			this.patternCache = new BufferedImage(cellSize, cellSize, java.awt.image.BufferedImage.TYPE_INT_ARGB);
+			final Graphics2D g2d = this.patternCache.createGraphics();
+			
+			// Clear background (transparent)
+			g2d.setBackground(new Color(0, 0, 0, 0));
+			g2d.clearRect(0, 0, cellSize, cellSize);
+			
+			// Draw pattern
+			g2d.setColor(new Color(255, 255, 255, 35));
+			g2d.fillOval(20, 20, 40, 40);
+			g2d.fillOval(70, 80, 15, 15);
+			
+			g2d.dispose();
+		}
+		return this.patternCache;
+	}
+
+	@Override
+	public void drawBackgroundPattern(final Graphics2D g2d, final CoordI2 offset, final CoordI2 viewPort) {
+		final var cache = this.getPatternCache();
+		final int cellSize = cache.getWidth();
+		
+		final int offX = Math.floorMod(offset.getX(), cellSize);
+		final int offY = Math.floorMod(offset.getY(), cellSize);
+		
+		for (int x = -cellSize; x < viewPort.getX() + cellSize; x += cellSize) {
+			for (int y = -cellSize; y < viewPort.getY() + cellSize; y += cellSize) {
+				g2d.drawImage(cache, x + offX, y + offY, null);
+			}
+		}
+	}
 }

src/main/java/de/extio/game_engine/renderer/g2d/theme/FantasyPatternRenderer.java

@@ -2,11 +2,13 @@ package de.extio.game_engine.renderer.g2d.theme;
 
 import java.awt.Color;
 import java.awt.Graphics2D;
+import java.awt.image.BufferedImage;
 
 import org.springframework.context.annotation.Conditional;
 import org.springframework.stereotype.Component;
 
 import de.extio.game_engine.renderer.g2d.G2DRendererCondition;
+import de.extio.game_engine.spatial2.model.CoordI2;
 
 @Conditional(G2DRendererCondition.class)
 @Component
@@ -105,4 +107,40 @@ public class FantasyPatternRenderer implements PatternRenderer {
 		g2d.fillRect(centerX - crossSize / 2, centerY - t / 2, crossSize, t);
 		g2d.fillRect(centerX - t / 2, centerY - crossSize / 2, t, crossSize);
 	}
+
+	private java.awt.image.BufferedImage patternCache;
+
+	private java.awt.image.BufferedImage getPatternCache() {
+		if (this.patternCache == null) {
+			final int cellSize = 80;
+			this.patternCache = new BufferedImage(cellSize, cellSize, java.awt.image.BufferedImage.TYPE_INT_ARGB);
+			final Graphics2D g2d = this.patternCache.createGraphics();
+			
+			g2d.setBackground(new Color(0, 0, 0, 0));
+			g2d.clearRect(0, 0, cellSize, cellSize);
+			
+			g2d.setColor(new Color(255, 255, 255, 35));
+			g2d.fillRect(10, 10, 2, 2);
+			g2d.fillRect(50, 60, 3, 3);
+			g2d.fillRect(30, 50, 1, 1);
+			
+			g2d.dispose();
+		}
+		return this.patternCache;
+	}
+
+	@Override
+	public void drawBackgroundPattern(final Graphics2D g2d, final CoordI2 offset, final CoordI2 viewPort) {
+		final var cache = this.getPatternCache();
+		final int cellSize = cache.getWidth();
+		
+		final int offX = Math.floorMod(offset.getX(), cellSize);
+		final int offY = Math.floorMod(offset.getY(), cellSize);
+		
+		for (int x = -cellSize; x < viewPort.getX() + cellSize; x += cellSize) {
+			for (int y = -cellSize; y < viewPort.getY() + cellSize; y += cellSize) {
+				g2d.drawImage(cache, x + offX, y + offY, null);
+			}
+		}
+	}
 }

src/main/java/de/extio/game_engine/renderer/g2d/theme/G2DThemeManager.java

@@ -169,6 +169,7 @@ public class G2DThemeManager implements ThemeManager {
 				this.applyTheme(persistedTheme.get());
 				this.registerTheme(this.currentTheme);
 				LOGGER.info("Loaded last used theme: {}", this.currentTheme.getName());
+				return;
 			}
 
 			this.applyTheme(this.defaultTheme);
@@ -215,4 +216,8 @@ public class G2DThemeManager implements ThemeManager {
 	public PatternRenderer getPatternRenderer(final String rendererName) {
 		return this.patternRenderers.get(rendererName);
 	}
+
+	public PatternRenderer getCurrentPatternRenderer() {
+		return this.patternRenderers.get(this.currentTheme.getPatternRendererName());
+	}
 }

src/main/java/de/extio/game_engine/renderer/g2d/theme/MetroPatternRenderer.java

@@ -2,11 +2,13 @@ package de.extio.game_engine.renderer.g2d.theme;
 
 import java.awt.Color;
 import java.awt.Graphics2D;
+import java.awt.image.BufferedImage;
 
 import org.springframework.context.annotation.Conditional;
 import org.springframework.stereotype.Component;
 
 import de.extio.game_engine.renderer.g2d.G2DRendererCondition;
+import de.extio.game_engine.spatial2.model.CoordI2;
 
 @Conditional(G2DRendererCondition.class)
 @Component
@@ -109,4 +111,38 @@ public class MetroPatternRenderer implements PatternRenderer {
 		g2d.fillRect(centerX - crossSize / 2, centerY - t / 2, crossSize, t);
 		g2d.fillRect(centerX - t / 2, centerY - crossSize / 2, t, crossSize);
 	}
+
+	private java.awt.image.BufferedImage patternCache;
+
+	private java.awt.image.BufferedImage getPatternCache() {
+		if (this.patternCache == null) {
+			final int spacing = 40;
+			this.patternCache = new BufferedImage(spacing, spacing, java.awt.image.BufferedImage.TYPE_INT_ARGB);
+			final Graphics2D g2d = this.patternCache.createGraphics();
+			
+			g2d.setBackground(new Color(0, 0, 0, 0));
+			g2d.clearRect(0, 0, spacing, spacing);
+			
+			g2d.setColor(new Color(255, 255, 255, 35));
+			g2d.drawLine(0, 0, spacing, spacing);
+			
+			g2d.dispose();
+		}
+		return this.patternCache;
+	}
+
+	@Override
+	public void drawBackgroundPattern(final Graphics2D g2d, final CoordI2 offset, final CoordI2 viewPort) {
+		final var cache = this.getPatternCache();
+		final int spacing = cache.getWidth();
+		
+		final int offX = Math.floorMod(offset.getX(), spacing);
+		final int offY = Math.floorMod(offset.getY(), spacing);
+		
+		for (int x = -spacing; x < viewPort.getX() + spacing; x += spacing) {
+			for (int y = -spacing; y < viewPort.getY() + spacing; y += spacing) {
+				g2d.drawImage(cache, x + offX, y + offY, null);
+			}
+		}
+	}
 }

src/main/java/de/extio/game_engine/renderer/g2d/theme/ModernPatternRenderer.java

@@ -2,12 +2,14 @@ package de.extio.game_engine.renderer.g2d.theme;
 
 import java.awt.Color;
 import java.awt.Graphics2D;
+import java.awt.image.BufferedImage;
 
 import org.springframework.context.annotation.Conditional;
 import org.springframework.stereotype.Component;
 
 import de.extio.game_engine.renderer.g2d.G2DRendererCondition;
 import de.extio.game_engine.renderer.g2d.bo.rendering.G2DDrawFont;
+import de.extio.game_engine.spatial2.model.CoordI2;
 
 @Conditional(G2DRendererCondition.class)
 @Component
@@ -96,4 +98,42 @@ public class ModernPatternRenderer implements PatternRenderer {
 		final var textDim = G2DDrawFont.getTextDimensions("X", g2d, 14, scaleFactor);
 		G2DDrawFont.renderText(g2d, textDim, 1.0, ((width - textDim.getX()) / 2), ((height - textDim.getY()) / 2), fontSize, "X");
 	}
+
+	private java.awt.image.BufferedImage patternCache;
+
+	private java.awt.image.BufferedImage getPatternCache() {
+		if (this.patternCache == null) {
+			final int spacing = 60;
+			this.patternCache = new BufferedImage(spacing, spacing, java.awt.image.BufferedImage.TYPE_INT_ARGB);
+			final Graphics2D g2d = this.patternCache.createGraphics();
+			
+			g2d.setBackground(new Color(0, 0, 0, 0));
+			g2d.clearRect(0, 0, spacing, spacing);
+			
+			g2d.setColor(new Color(255, 255, 255, 35));
+			final int len = 10;
+			final int cx = spacing / 2;
+			final int cy = spacing / 2;
+			g2d.drawLine(cx - len, cy, cx + len, cy);
+			g2d.drawLine(cx, cy - len, cx, cy + len);
+			
+			g2d.dispose();
+		}
+		return this.patternCache;
+	}
+
+	@Override
+	public void drawBackgroundPattern(final Graphics2D g2d, final CoordI2 offset, final CoordI2 viewPort) {
+		final var cache = this.getPatternCache();
+		final int spacing = cache.getWidth();
+		
+		final int offX = Math.floorMod(offset.getX(), spacing);
+		final int offY = Math.floorMod(offset.getY(), spacing);
+		
+		for (int x = -spacing; x < viewPort.getX() + spacing; x += spacing) {
+			for (int y = -spacing; y < viewPort.getY() + spacing; y += spacing) {
+				g2d.drawImage(cache, x + offX, y + offY, null);
+			}
+		}
+	}
 }

src/main/java/de/extio/game_engine/renderer/g2d/theme/PatternRenderer.java

@@ -3,6 +3,8 @@ package de.extio.game_engine.renderer.g2d.theme;
 import java.awt.Color;
 import java.awt.Graphics2D;
 
+import de.extio.game_engine.spatial2.model.CoordI2;
+
 /**
  * Interface for rendering common UI patterns like borders, backgrounds, shadows, etc.
  * Different implementations can provide different visual styles.
@@ -64,4 +66,13 @@ public interface PatternRenderer {
 	 * @param theme           Theme to use for colors
 	 */
 	void drawCloseButton(Graphics2D g2d, int width, int height, boolean enabled, int state, Color backgroundColor, double scaleFactor, Theme theme);
+
+	/**
+	 * Draws a background pattern for the UI on layer BACKGROUND1
+	 *
+	 * @param g2d      The graphics context
+	 * @param offset   Offset for pattern alignment
+	 * @param viewPort Viewport size
+	 */
+	void drawBackgroundPattern(final Graphics2D g2d, final CoordI2 offset, final CoordI2 viewPort);
 }

src/main/java/de/extio/game_engine/renderer/g2d/theme/SpacecraftPatternRenderer.java

@@ -2,13 +2,20 @@ package de.extio.game_engine.renderer.g2d.theme;
 
 import java.awt.Color;
 import java.awt.Graphics2D;
+import java.util.ArrayList;
+import java.util.List;
 
 import org.springframework.context.annotation.Conditional;
 import org.springframework.stereotype.Component;
 
+import de.extio.game_engine.renderer.RendererControl;
 import de.extio.game_engine.renderer.g2d.G2DRendererCondition;
 import de.extio.game_engine.renderer.g2d.bo.rendering.G2DDrawFont;
+import de.extio.game_engine.renderer.model.color.ImmutableRgbaColor;
 import de.extio.game_engine.renderer.model.color.RgbaColor;
+import de.extio.game_engine.spatial2.model.CoordI2;
+import de.extio.game_engine.spatial2.model.ImmutableCoordI2;
+import de.extio.game_engine.util.rng.ThreadLocalXorShift128Random;
 
 /**
  * Default implementation of PatternRenderer that draws borders and panels in a decorative style.
@@ -18,6 +25,12 @@ import de.extio.game_engine.renderer.model.color.RgbaColor;
 @Component
 public class SpacecraftPatternRenderer implements PatternRenderer {
 	
+	private final static List<Star> STARS = new ArrayList<>();
+	
+	private final static List<Star> REFERENCE_STARS = new ArrayList<>();
+	
+	private static CoordI2 STARS_LAST_VIEWPORT = ImmutableCoordI2.create();
+
 	@Override
 	public void drawDecorativeBorder(final Graphics2D g2d, final int x, final int y, final int width, final int height, final int strength, final Color color) {
 		final var strength2 = strength * 2;
@@ -99,4 +112,65 @@ public class SpacecraftPatternRenderer implements PatternRenderer {
 			G2DDrawFont.renderText(g2d, textDim, 1.0, ((width - textDim.getX()) / 2), ((height - textDim.getY()) / 2), (int) (16 * scaleFactor), "X");
 		}
 	}
+
+	@Override
+	public void drawBackgroundPattern(final Graphics2D g2d, final CoordI2 offset, final CoordI2 viewPort) {
+		this.generateStars(viewPort);
+		
+		for (final Star element : STARS) {
+			g2d.setColor(element.color.toAwtColor());
+			g2d.fillOval(
+					Math.floorMod(element.position.getX() - offset.getX(), viewPort.getX()),
+					Math.floorMod(element.position.getY() - offset.getY(), viewPort.getY()),
+					element.radius.getX(),
+					element.radius.getY());
+		}
+	}
+
+	private void generateStars(final CoordI2 viewPort) {
+		if (REFERENCE_STARS.isEmpty()) {
+			final var rand = ThreadLocalXorShift128Random.current();
+
+			for (var i = 0; i < 350; i++) {
+				final var position = ImmutableCoordI2.create(rand.nextInt(RendererControl.REFERENCE_RESOLUTION.getX()), rand.nextInt(RendererControl.REFERENCE_RESOLUTION.getY()));
+				final var radius = ImmutableCoordI2.create(rand.nextInt(3) + 2, rand.nextInt(3) + 2);
+				final var color = new ImmutableRgbaColor(rand.nextInt(30) + 100, rand.nextInt(30) + 100, rand.nextInt(30) + 130);
+				
+				REFERENCE_STARS.add(new Star(position, radius, color));
+				STARS.add(new Star(position, radius, color));
+			}
+		}
+		
+		if (!viewPort.equals(STARS_LAST_VIEWPORT)) {
+			final double scaleX = (double) viewPort.getX() / RendererControl.REFERENCE_RESOLUTION.getX();
+			final double scaleY = (double) viewPort.getY() / RendererControl.REFERENCE_RESOLUTION.getY();
+
+			for (int i = 0; i < REFERENCE_STARS.size(); i++) {
+				final var refStar = REFERENCE_STARS.get(i);
+				final var star = STARS.get(i);
+				
+				star.position = ImmutableCoordI2.create(
+						(int) (refStar.position.getX() * scaleX),
+						(int) (refStar.position.getY() * scaleY));
+			}
+			STARS_LAST_VIEWPORT = viewPort.toImmutableCoordI2();
+		}
+	}
+
+	private static class Star {
+		
+		CoordI2 position;
+		
+		CoordI2 radius;
+		
+		RgbaColor color;
+		
+		Star(final CoordI2 position, final CoordI2 radius, final RgbaColor color) {
+			super();
+			this.position = position;
+			this.radius = radius;
+			this.color = color;
+		}
+		
+	}
 }

src/main/java/de/extio/game_engine/renderer/g2d/theme/UrbanPatternRenderer.java

@@ -7,6 +7,7 @@ import org.springframework.context.annotation.Conditional;
 import org.springframework.stereotype.Component;
 
 import de.extio.game_engine.renderer.g2d.G2DRendererCondition;
+import de.extio.game_engine.spatial2.model.CoordI2;
 
 @Conditional(G2DRendererCondition.class)
 @Component
@@ -110,4 +111,20 @@ public class UrbanPatternRenderer implements PatternRenderer {
 		g2d.fillRect(centerX - crossSize / 2, centerY - t / 2, crossSize, t);
 		g2d.fillRect(centerX - t / 2, centerY - crossSize / 2, t, crossSize);
 	}
+
+	@Override
+	public void drawBackgroundPattern(final Graphics2D g2d, final CoordI2 offset, final CoordI2 viewPort) {
+		g2d.setColor(new Color(255, 255, 255, 35));
+		final int cellSize = 60;
+		final int offX = Math.floorMod(offset.getX(), cellSize);
+		final int offY = Math.floorMod(offset.getY(), cellSize);
+		
+		for (int x = -cellSize; x < viewPort.getX() + cellSize; x += cellSize) {
+			for (int y = -cellSize; y < viewPort.getY() + cellSize; y += cellSize) {
+				// Vertical streaks
+				g2d.fillRect(x + offX + 10, y + offY + 5, 2, 15);
+				g2d.fillRect(x + offX + 40, y + offY + 35, 2, 10);
+			}
+		}
+	}
 }

src/main/java/de/extio/game_engine/renderer/g2d/theme/VintagePatternRenderer.java

@@ -2,11 +2,13 @@ package de.extio.game_engine.renderer.g2d.theme;
 
 import java.awt.Color;
 import java.awt.Graphics2D;
+import java.awt.image.BufferedImage;
 
 import org.springframework.context.annotation.Conditional;
 import org.springframework.stereotype.Component;
 
 import de.extio.game_engine.renderer.g2d.G2DRendererCondition;
+import de.extio.game_engine.spatial2.model.CoordI2;
 
 @Conditional(G2DRendererCondition.class)
 @Component
@@ -146,4 +148,40 @@ public class VintagePatternRenderer implements PatternRenderer {
 			g2d.fillRect(centerX - crossThickness / 2, centerY - crossSize / 2, crossThickness, crossSize);
 		}
 	}
+
+	private java.awt.image.BufferedImage patternCache;
+
+	private java.awt.image.BufferedImage getPatternCache() {
+		if (this.patternCache == null) {
+			final int cellSize = 150;
+			this.patternCache = new BufferedImage(cellSize, cellSize, java.awt.image.BufferedImage.TYPE_INT_ARGB);
+			final Graphics2D g2d = this.patternCache.createGraphics();
+			
+			g2d.setBackground(new Color(0, 0, 0, 0));
+			g2d.clearRect(0, 0, cellSize, cellSize);
+			
+			g2d.setColor(new Color(255, 255, 255, 35));
+			g2d.drawLine(10, 10, 20, 30);
+			g2d.drawLine(60, 50, 55, 70);
+			g2d.fillOval(80, 20, 2, 2);
+			
+			g2d.dispose();
+		}
+		return this.patternCache;
+	}
+
+	@Override
+	public void drawBackgroundPattern(final Graphics2D g2d, final CoordI2 offset, final CoordI2 viewPort) {
+		final var cache = this.getPatternCache();
+		final int cellSize = cache.getWidth();
+		
+		final int offX = Math.floorMod(offset.getX(), cellSize);
+		final int offY = Math.floorMod(offset.getY(), cellSize);
+		
+		for (int x = -cellSize; x < viewPort.getX() + cellSize; x += cellSize) {
+			for (int y = -cellSize; y < viewPort.getY() + cellSize; y += cellSize) {
+				g2d.drawImage(cache, x + offX, y + offY, null);
+			}
+		}
+	}
 }

src/main/java/de/extio/game_engine/renderer/model/options/UiOptions.java

@@ -16,7 +16,7 @@ public final class UiOptions {
 	
 	private boolean backgroundScrollingReverse0;
 	
-	private boolean backgroundScrolling1 = true;
+	private boolean backgroundScrolling1;
 	
 	private boolean backgroundScrollingReverse1;