Hologram Stacks

api/src/main/java/de/oliver/fancyholograms/api/data/HologramReferenceStackData.java

@@ -0,0 +1,73 @@
+package de.oliver.fancyholograms.api.data;
+
+import de.oliver.fancyholograms.api.hologram.HologramType;
+import org.bukkit.Location;
+import org.bukkit.configuration.ConfigurationSection;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class HologramReferenceStackData extends HologramData {
+    private List<String> holograms = new ArrayList<>();
+
+    /**
+     * @param name     Name of hologram
+     * @param location Location of hologram
+     *                 Default values are already set
+     */
+    public HologramReferenceStackData(String name, Location location) {
+        super(name, HologramType.HOLOGRAM_STACK, location);
+    }
+
+    public List<String> getHolograms() {
+        return holograms;
+    }
+
+    public HologramReferenceStackData setHolograms(List<String> holograms) {
+        this.holograms = holograms;
+        setHasChanges(true);
+        return this;
+    }
+
+    public void addLine(String hologramName) {
+        holograms.add(hologramName);
+        setHasChanges(true);
+    }
+
+    public void removeLine(int index) {
+        holograms.remove(index);
+        setHasChanges(true);
+    }
+
+    @Override
+    public void read(ConfigurationSection section, String name) {
+        super.read(section, name);
+
+        ConfigurationSection stackSection = section.getConfigurationSection("stack");
+        if (stackSection != null) {
+
+        }
+    }
+
+    @Override
+    public void write(ConfigurationSection section, String name) {
+        super.write(section, name);
+
+        for (int i = 0; i < holograms.size(); i++) {
+            section.set("stack." + i, holograms.get(i));
+        }
+    }
+
+    @Override
+    public HologramReferenceStackData copy(String name) {
+        HologramReferenceStackData hologramStackData = new HologramReferenceStackData(name, getLocation());
+        hologramStackData
+            .setHolograms(this.getHolograms())
+            .setVisibilityDistance(this.getVisibilityDistance())
+            .setVisibility(this.getVisibility())
+            .setPersistent(this.isPersistent())
+            .setLinkedNpcName(this.getLinkedNpcName());
+
+        return hologramStackData;
+    }
+}

api/src/main/java/de/oliver/fancyholograms/api/data/HologramStackData.java

@@ -0,0 +1,104 @@
+package de.oliver.fancyholograms.api.data;
+
+import de.oliver.fancyholograms.api.FancyHologramsPlugin;
+import de.oliver.fancyholograms.api.hologram.HologramType;
+import org.bukkit.Location;
+import org.bukkit.configuration.ConfigurationSection;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class HologramStackData extends HologramData {
+    private List<HologramData> content = new ArrayList<>();
+
+    /**
+     * @param name     Name of hologram
+     * @param location Location of hologram
+     *                 Default values are already set
+     */
+    public HologramStackData(String name, Location location) {
+        super(name, HologramType.HOLOGRAM_STACK, location);
+    }
+
+    public List<HologramData> getContent() {
+        return content;
+    }
+
+    public HologramStackData setContent(List<HologramData> content) {
+        this.content = content;
+        setHasChanges(true);
+        return this;
+    }
+
+    public void addLine(HologramData data) {
+        content.add(data);
+        setHasChanges(true);
+    }
+
+    public void removeLine(int index) {
+        content.remove(index);
+        setHasChanges(true);
+    }
+
+    @Override
+    public void read(ConfigurationSection section, String name) {
+        super.read(section, name);
+
+        ConfigurationSection stackSection = section.getConfigurationSection("stack");
+        if (stackSection != null) {
+            for (String indexRaw : stackSection.getKeys(false)) {
+                ConfigurationSection holoSection = stackSection.getConfigurationSection(indexRaw);
+                if (holoSection == null) {
+                    continue;
+                }
+
+                String typeName = holoSection.getString("type");
+                if (typeName == null) {
+                    FancyHologramsPlugin.get().getPlugin().getLogger().warning("HologramType was not saved");
+                    continue;
+                }
+
+                HologramType type = HologramType.getByName(typeName);
+                if (type == null) {
+                    FancyHologramsPlugin.get().getPlugin().getLogger().warning("Could not parse HologramType");
+                    continue;
+                }
+
+                DisplayHologramData displayData = null;
+                switch (type) {
+                    case TEXT -> displayData = new TextHologramData(name, new Location(null, 0, 0, 0));
+                    case ITEM -> displayData = new ItemHologramData(name, new Location(null, 0, 0, 0));
+                    case BLOCK -> displayData = new BlockHologramData(name, new Location(null, 0, 0, 0));
+                }
+                displayData.read(holoSection, name);
+
+                int index = Integer.parseInt(indexRaw);
+                content.set(index, displayData);
+            }
+        }
+    }
+
+    @Override
+    public void write(ConfigurationSection section, String name) {
+        super.write(section, name);
+
+        for (int i = 0; i < content.size(); i++) {
+            HologramData hologramData = content.get(i);
+            ConfigurationSection dataSection = section.createSection("stack." + i);
+            hologramData.write(dataSection, hologramData.getName());
+        }
+    }
+
+    @Override
+    public HologramStackData copy(String name) {
+        HologramStackData hologramStackData = new HologramStackData(name, getLocation());
+        hologramStackData
+            .setContent(this.getContent())
+            .setVisibilityDistance(this.getVisibilityDistance())
+            .setVisibility(this.getVisibility())
+            .setPersistent(this.isPersistent())
+            .setLinkedNpcName(this.getLinkedNpcName());
+
+        return hologramStackData;
+    }
+}

api/src/main/java/de/oliver/fancyholograms/api/hologram/Hologram.java

@@ -48,7 +48,7 @@ public String getName() {
         return data.getName();
     }
 
-    public final @NotNull HologramData getData() {
+    public @NotNull HologramData getData() {
         return this.data;
     }
 

api/src/main/java/de/oliver/fancyholograms/api/hologram/HologramStack.java

@@ -0,0 +1,111 @@
+package de.oliver.fancyholograms.api.hologram;
+
+import de.oliver.fancyholograms.api.FancyHologramsPlugin;
+import de.oliver.fancyholograms.api.data.HologramData;
+import de.oliver.fancyholograms.api.data.HologramStackData;
+import org.bukkit.Bukkit;
+import org.bukkit.entity.Display;
+import org.bukkit.entity.Player;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.*;
+
+public class HologramStack extends Hologram {
+    private final List<Hologram> holograms = new ArrayList<>();
+
+    protected HologramStack(@NotNull HologramStackData data) {
+        super(data);
+    }
+
+    @Override
+    public @NotNull HologramStackData getData() {
+        return (HologramStackData) this.data;
+    }
+
+    @Override
+    public @Nullable Display getDisplayEntity() {
+        return null;
+    }
+
+    @Override
+    protected void create() {
+        for (HologramData hologramData : this.getData().getContent()) {
+            Hologram hologram = FancyHologramsPlugin.get().getHologramManager().create(hologramData);
+            this.holograms.add(hologram);
+        }
+    }
+
+    @Override
+    protected void delete() {
+        for (Hologram hologram : holograms) {
+            hologram.delete();
+        }
+    }
+
+    @Override
+    protected void update() {
+        HashMap<HologramData, Hologram> currHolograms = new HashMap<>();
+        for (Hologram hologram : this.holograms) {
+            currHolograms.put(hologram.getData(), hologram);
+        }
+        this.holograms.clear();
+
+        for (HologramData hologramData : this.getData().getContent()) {
+            Hologram hologram;
+            if (currHolograms.containsKey(hologramData)) {
+                hologram = currHolograms.get(hologramData);
+                currHolograms.remove(hologramData);
+            } else {
+                hologram = FancyHologramsPlugin.get().getHologramManager().create(hologramData);
+            }
+
+            this.holograms.add(hologram);
+        }
+
+        // Handle old/removed holograms
+        for (Hologram hologram : currHolograms.values()) {
+            for (UUID viewer : hologram.getViewers()) {
+                Player player = Bukkit.getPlayer(viewer);
+                if (player != null) {
+                    forceHideHologram(player);
+                }
+            }
+
+            hologram.delete();
+        }
+    }
+
+    @Override
+    protected boolean show(@NotNull Player player) {
+        boolean success = true;
+
+        for (Hologram hologram : holograms) {
+            if (!hologram.show(player)) {
+                success = false;
+            }
+        }
+
+        return success;
+    }
+
+    @Override
+    protected boolean hide(@NotNull Player player) {
+        boolean success = true;
+
+        for (Hologram hologram : holograms) {
+            if (!hologram.hide(player)) {
+                success = false;
+            }
+        }
+
+        return success;
+    }
+
+    @Override
+    protected void refresh(@NotNull Player player) {
+        for (Hologram hologram : holograms) {
+            hologram.refresh(player);
+        }
+    }
+}

api/src/main/java/de/oliver/fancyholograms/api/hologram/HologramType.java

@@ -1,12 +1,14 @@
 package de.oliver.fancyholograms.api.hologram;
 
 import java.util.Arrays;
+import java.util.Collections;
 import java.util.List;
 
 public enum HologramType {
     TEXT(Arrays.asList("background", "textshadow", "textalignment", "seethrough", "setline", "removeline", "addline", "insertbefore", "insertafter", "updatetextinterval")),
     ITEM(List.of("item")),
-    BLOCK(List.of("block"));
+    BLOCK(List.of("block")),
+    HOLOGRAM_STACK(Collections.emptyList());
 
     private final List<String> commands;