Move image sampler to separate addon

2026-06-18 23:01:03 +00:00 · 2022-08-12 11:40:56 +10:00
parent 03ab463723
commit 329d94ba9c
7 changed files with 99 additions and 6 deletions
@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 2020-2021 Polyhedral Development
+ *
+ * The Terra Core Addons are licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in this module's root directory.
+ */
+
+package com.dfsek.terra.addons.noise.image;
+
+import net.jafama.FastMath;
+
+import java.awt.image.BufferedImage;
+
+import com.dfsek.terra.api.noise.NoiseSampler;
+
+
+public class ImageSampler implements NoiseSampler {
+    private final BufferedImage image;
+    private final Channel channel;
+    
+    private final double frequency;
+    
+    public ImageSampler(BufferedImage image, Channel channel, double frequency) {
+        this.image = image;
+        this.channel = channel;
+        this.frequency = frequency;
+    }
+    
+    @Override
+    public double noise(long seed, double x, double y) {
+        return ((channel.getChannel(image.getRGB(FastMath.floorMod(FastMath.floorToInt(x * frequency), image.getWidth()),
+                                                 FastMath.floorMod(FastMath.floorToInt(y * frequency), image.getHeight()))) / 255D) - 0.5) *
+               2;
+    }
+    
+    @Override
+    public double noise(long seed, double x, double y, double z) {
+        return noise(seed, x, y);
+    }
+    
+    public enum Channel {
+        RED {
+            @Override
+            public int getChannel(int mashed) {
+                return (mashed >> 16) & 0xff;
+            }
+        },
+        GREEN {
+            @Override
+            public int getChannel(int mashed) {
+                return (mashed >> 8) & 0xff;
+            }
+        },
+        BLUE {
+            @Override
+            public int getChannel(int mashed) {
+                return mashed & 0xff;
+            }
+        },
+        GRAYSCALE {
+            @Override
+            public int getChannel(int mashed) {
+                return (RED.getChannel(mashed) + GREEN.getChannel(mashed) + BLUE.getChannel(mashed)) / 3;
+            }
+        },
+        ALPHA {
+            @Override
+            public int getChannel(int mashed) {
+                return (mashed >> 24) & 0xff;
+            }
+        };
+        
+        public abstract int getChannel(int mashed);
+    }
+}
@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2020-2021 Polyhedral Development
+ *
+ * The Terra Core Addons are licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in this module's root directory.
+ */
+
+package com.dfsek.terra.addons.noise.image;
+
+import com.dfsek.tectonic.api.config.template.object.ObjectTemplate;
+
+import java.util.function.Supplier;
+
+import com.dfsek.terra.addons.manifest.api.AddonInitializer;
+import com.dfsek.terra.addons.noise.NoiseAddon;
+import com.dfsek.terra.addons.noise.image.config.ImageSamplerTemplate;
+import com.dfsek.terra.api.Platform;
+import com.dfsek.terra.api.addon.BaseAddon;
+import com.dfsek.terra.api.event.events.config.pack.ConfigPackPreLoadEvent;
+import com.dfsek.terra.api.event.functional.FunctionalEventHandler;
+import com.dfsek.terra.api.inject.annotations.Inject;
+import com.dfsek.terra.api.noise.NoiseSampler;
+import com.dfsek.terra.api.registry.CheckedRegistry;
+
+
+public class ImageSamplerAddon implements AddonInitializer {
+    
+    @Inject
+    private Platform platform;
+    
+    @Inject
+    private BaseAddon addon;
+    
+    @Override
+    public void initialize() {
+        platform.getEventManager()
+                .getHandler(FunctionalEventHandler.class)
+                .register(addon, ConfigPackPreLoadEvent.class)
+                .priority(502)
+                .then(event -> {
+                    CheckedRegistry<Supplier<ObjectTemplate<NoiseSampler>>> noiseRegistry = event.getPack().getOrCreateRegistry(
+                            NoiseAddon.NOISE_SAMPLER_TOKEN);
+                    noiseRegistry.register(addon.key("IMAGE"), ImageSamplerTemplate::new);
+                })
+                .failThrough();
+    }
+}
@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) 2020-2021 Polyhedral Development
+ *
+ * The Terra Core Addons are licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in this module's root directory.
+ */
+
+package com.dfsek.terra.addons.noise.image.config;
+
+import com.dfsek.tectonic.api.config.template.annotations.Value;
+
+import java.awt.image.BufferedImage;
+
+import com.dfsek.terra.addons.noise.config.templates.SamplerTemplate;
+import com.dfsek.terra.addons.noise.image.ImageSampler;
+import com.dfsek.terra.api.config.meta.Meta;
+import com.dfsek.terra.api.noise.NoiseSampler;
+
+
+@SuppressWarnings({ "unused", "FieldMayBeFinal" })
+public class ImageSamplerTemplate extends SamplerTemplate<ImageSampler> {
+    
+    @Value("image")
+    private @Meta BufferedImage image;
+    
+    @Value("frequency")
+    private @Meta double frequency;
+    
+    @Value("channel")
+    private ImageSampler.@Meta Channel channel;
+    
+    @Override
+    public NoiseSampler get() {
+        return new ImageSampler(image, channel, frequency);
+    }
+}
@@ -0,0 +1,14 @@
+schema-version: 1
+contributors:
+  - Terra contributors
+id: config-noise-image
+version: @VERSION@
+entrypoints:
+  - "com.dfsek.terra.addons.noise.image.ImageSamplerAddon"
+website:
+  issues: https://github.com/PolyhedralDev/Terra/issues
+  source: https://github.com/PolyhedralDev/Terra
+  docs: https://terra.polydev.org
+license: MIT License
+depends:
+  library-image: "1.+"