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feat(renderer): implement pattern caching in SteampunkPatternRenderer for improved background rendering

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extio-de
2025-12-31 11:14:12 +01:00
parent 974753c239
commit 2495be989b
1 changed files with 56 additions and 38 deletions
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94
src/main/java/de/extio/game_engine/renderer/g2d/theme/SteampunkPatternRenderer.java
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@@ -3,6 +3,7 @@ package de.extio.game_engine.renderer.g2d.theme;
import java.awt.Color;
import java.awt.GradientPaint;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import org.springframework.context.annotation.Conditional;
import org.springframework.stereotype.Component;
@@ -14,6 +15,8 @@ import de.extio.game_engine.spatial2.model.CoordI2;
@Component
public class SteampunkPatternRenderer implements PatternRenderer {
private java.awt.image.BufferedImage patternCache;
@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 s = Math.max(1, strength);
@@ -33,18 +36,18 @@ public class SteampunkPatternRenderer implements PatternRenderer {
for (int xx = x + s; xx < x + width - s; xx += toothWidth * 2) {
final int tw = Math.min(toothWidth, x + width - s - xx);
// Top teeth pointing up
g2d.fillPolygon(new int[]{xx, xx + tw/2, xx + tw}, new int[]{y, y - toothHeight, y}, 3);
g2d.fillPolygon(new int[] { xx, xx + tw / 2, xx + tw }, new int[] { y, y - toothHeight, y }, 3);
// Bottom teeth pointing down
g2d.fillPolygon(new int[]{xx, xx + tw/2, xx + tw}, new int[]{y + height, y + height + toothHeight, y + height}, 3);
g2d.fillPolygon(new int[] { xx, xx + tw / 2, xx + tw }, new int[] { y + height, y + height + toothHeight, y + height }, 3);
}
// Add gear teeth on left and right
for (int yy = y + s; yy < y + height - s; yy += toothWidth * 2) {
final int th = Math.min(toothWidth, y + height - s - yy);
// Left teeth pointing left
g2d.fillPolygon(new int[]{x, x - toothHeight, x}, new int[]{yy, yy + th/2, yy + th}, 3);
g2d.fillPolygon(new int[] { x, x - toothHeight, x }, new int[] { yy, yy + th / 2, yy + th }, 3);
// Right teeth pointing right
g2d.fillPolygon(new int[]{x + width, x + width + toothHeight, x + width}, new int[]{yy, yy + th/2, yy + th}, 3);
g2d.fillPolygon(new int[] { x + width, x + width + toothHeight, x + width }, new int[] { yy, yy + th / 2, yy + th }, 3);
}
// Draw rivets at corners and along borders
@@ -139,49 +142,64 @@ public class SteampunkPatternRenderer 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 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(210, 180, 140, 40)); // light brown for steam
final int cx = cellSize / 2;
final int cy = cellSize / 2;
final int radius = cellSize / 6;
// Draw gear with more teeth
g2d.drawOval(cx - radius, cy - radius, radius * 2, radius * 2);
for (int i = 0; i < 12; i++) {
final double angle = i * Math.PI / 6;
final int tx = cx + (int) (radius * 1.3 * Math.cos(angle));
final int ty = cy + (int) (radius * 1.3 * Math.sin(angle));
g2d.drawLine(cx, cy, tx, ty);
}
// Draw connecting pipes
// Horizontal pipe to left
g2d.drawLine(0, cy, cx, cy);
// Vertical pipe to top
g2d.drawLine(cx, 0, cx, cy);
// Draw steam puffs (small circles) at fixed positions
g2d.setColor(new Color(255, 255, 255, 20));
g2d.fillOval(cx - 10, cy - radius - 5, 4, 4);
g2d.fillOval(cx + 5, cy - radius - 10, 4, 4);
g2d.fillOval(cx + 15, cy - radius - 2, 4, 4);
g2d.dispose();
}
return this.patternCache;
}
@Override
public void drawBackgroundPattern(final Graphics2D g2d, final CoordI2 offset, final CoordI2 viewPort) {
g2d.setColor(new Color(210, 180, 140, 40)); // light brown for steam
final int cellSize = 100;
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) {
final int cx = x + offX + cellSize / 2;
final int cy = y + offY + cellSize / 2;
final int radius = cellSize / 6;
// Draw gear with more teeth
g2d.drawOval(cx - radius, cy - radius, radius * 2, radius * 2);
for (int i = 0; i < 12; i++) {
final double angle = i * Math.PI / 6;
final int tx = cx + (int) (radius * 1.3 * Math.cos(angle));
final int ty = cy + (int) (radius * 1.3 * Math.sin(angle));
g2d.drawLine(cx, cy, tx, ty);
}
// Draw connecting pipes
if (x > -cellSize) {
g2d.drawLine(cx - cellSize, cy, cx, cy); // horizontal pipe
}
if (y > -cellSize) {
g2d.drawLine(cx, cy - cellSize, cx, cy); // vertical pipe
}
// Draw steam puffs (small circles)
g2d.setColor(new Color(255, 255, 255, 20));
for (int i = 0; i < 3; i++) {
final int sx = cx + (int) ((Math.random() - 0.5) * radius * 2);
final int sy = cy - radius - (int) (Math.random() * radius);
g2d.fillOval(sx - 2, sy - 2, 4, 4);
}
g2d.setColor(new Color(210, 180, 140, 40));
g2d.drawImage(cache, x + offX, y + offY, null);
}
}
}
@Override
public void drawButton(final Graphics2D g2d, final int x, final int y, final int width, final int height, final boolean enabled, final int state, final Color backgroundColor, final double scaleFactor, final Theme theme) {
final int STATE_TOGGLED = 1;
@@ -288,4 +306,4 @@ public class SteampunkPatternRenderer implements PatternRenderer {
g2d.fillOval(x + width - borderStrength - rivetSize / 2, y + height / 2 - rivetSize / 2, rivetSize, rivetSize);
}
}
}
}