com.captainbern.minecraft.reflection.MinecraftReflection Java Examples

@Command(
        command = "info",
        description = "View information on active holograms",
        permission = "holoapi.holo.info"
)
public boolean command(CommandEvent event) {
    if (HoloAPI.getManager().getAllComplexHolograms().isEmpty()) {
        event.respond(Lang.NO_ACTIVE_HOLOGRAMS.getValue());
        return true;
    }

    event.respond(Lang.ACTIVE_DISPLAYS.getValue());
    info(event.sender(), HoloAPI.getManager().getAllComplexHolograms().keySet());
    if (MinecraftReflection.isUsingNetty() && event.sender() instanceof Player) {
        event.respond(Lang.TIP_HOVER_PREVIEW.getValue());
    }
    return true;
}
 

@Command(
        command = "holodebug",
        description = "Smashing bugs and coloring books",
        permission = "holo.debug"
)
public boolean debug(CommandEvent event) {
    event.respond("Debug results: ");
    event.respond("--------------[HoloAPI Stuff]--------------");
    event.respond("HoloAPI-Version: " + HoloAPI.getCore().getDescription().getVersion());
    event.respond("Message of the day: " + messages[GeneralUtil.random().nextInt(messages.length)]);
    event.respond("--------------[CraftBukkit Stuff]--------------");
    event.respond("Version tag: " + MinecraftReflection.getVersionTag());
    event.respond("NMS-package: " + MinecraftReflection.getMinecraftPackage());
    event.respond("CB-package: " + MinecraftReflection.getCraftBukkitPackage());
    event.respond("Bukkit version: " + Bukkit.getBukkitVersion());
    event.respond("--------------[Minecraft Server Stuff]--------------");
    event.respond("Using Netty: " + MinecraftReflection.isUsingNetty());
    event.respond("MinecraftServer: " + MinecraftReflection.getMinecraftClass("MinecraftServer").getCanonicalName());
    event.respond("Entity: " + MinecraftReflection.getMinecraftClass("Entity"));
    event.respond("Is (forge) Modded: " + (MinecraftReflection.getMinecraftClass("Entity").getCanonicalName().startsWith("net.minecraft.entity") ? "Definitely" : "Probably not"));
    return true;
}
 

public String formatForOldClient(String content) {
    int limit = 64;
    if (content.length() > limit && !MinecraftReflection.isUsingNetty()) {
        // 1.6.x client crashes if a name tag is longer than 64 characters
        // Unfortunate, but it must be accounted for
        content = content.substring(limit / 4, limit - (limit / 4));
    }

    return content;
}
 

@Command(
        command = "nearby <radius>",
        description = "View information on all nearby holograms within the specified radius",
        permission = "holoapi.holo.nearby"
)
public boolean command(CommandEvent<Player> event) {
    int radius;
    try {
        radius = GeneralUtil.toInteger(event.variable("radius"));
    } catch (NumberFormatException e) {
        event.respond(Lang.INT_ONLY.getValue("string", event.variable("radius")));
        return true;
    }

    ArrayList<Hologram> nearby = new ArrayList<Hologram>();
    for (Hologram hologram : HoloAPI.getManager().getAllComplexHolograms().keySet()) {
        if (GeometryUtil.getNearbyEntities(hologram.getDefaultLocation(), radius).contains(event.sender())) {
            nearby.add(hologram);
        }
    }

    if (nearby.isEmpty()) {
        event.respond(Lang.NO_NEARBY_HOLOGRAMS.getValue("radius", radius));
        return true;
    }

    event.respond(Lang.HOLOGRAM_NEARBY.getValue("radius", radius));
    InfoCommand.info(event.sender(), nearby);
    if (MinecraftReflection.isUsingNetty()) {
        event.respond(Lang.TIP_HOVER_PREVIEW.getValue());
    }
    return true;
}
 

@Command(
        command = "help",
        description = "Retrieve help for all HoloAPI commands"
)
public boolean help(CommandEvent event) {
    HoloAPI.getCommandManager().getHelpService().sendPage(event.sender(), 1);
    if (MinecraftReflection.isUsingNetty() && event.sender() instanceof Player) {
        event.respond(Lang.TIP_HOVER_COMMANDS.getValue());
    }
    return true;
}
 

@Command(
        command = "help <index>",
        description = "Retrieve a certain help page of all HoloAPI commands"
)
public boolean helpPage(CommandEvent event) {
    try {
        HoloAPI.getCommandManager().getHelpService().sendPage(event.sender(), GeneralUtil.toInteger(event.variable("index")));
        if (MinecraftReflection.isUsingNetty() && event.sender() instanceof Player) {
            event.respond(Lang.TIP_HOVER_COMMANDS.getValue());
        }
    } catch (NumberFormatException e) {
        event.respond(Lang.HELP_INDEX_TOO_BIG.getValue("index", event.variable("index")));
    }
    return true;
}
 

protected static void initializeFields() {
    try {

        ClassTemplate goalTemplate = new Reflection().reflect(MinecraftReflection.getMinecraftClass("PathfinderGoalSelector"));

        List<SafeMethod<Void>> methodCandidates = goalTemplate.getSafeMethods(withArguments(int.class, MinecraftReflection.getMinecraftClass("PathfinderGoal")));
        if (methodCandidates.size() > 0) {
            ADD_GOAL = methodCandidates.get(0).getAccessor();
        } else {
            throw new RuntimeException("Failed to get the addGoal method!");
        }

        List<SafeField<List>> fieldCandidates = goalTemplate.getSafeFields(withType(List.class));
        if (fieldCandidates.size() > 1) {
            GOALS = fieldCandidates.get(0).getAccessor();
            ACTIVE_GOALS = fieldCandidates.get(0).getAccessor();
        } else {
            throw new RuntimeException("Failed to initialize the goal-lists!");
        }

        // The GoalSelector
        ClassTemplate entityTemplate = new Reflection().reflect(MinecraftReflection.getMinecraftClass("EntityInsentient"));
        List<SafeField<Object>> candidates = entityTemplate.getSafeFields(withType(goalTemplate.getReflectedClass()));

        if (candidates.size() > 0) {
            GOAL_SELECTOR = candidates.get(0).getAccessor(); // the normal selector is the first one
        } else {
            throw new RuntimeException("Failed to initialize the GoalSelector field for the entities");
        }

    } catch (Exception ಠ_ಠ) {
        throw new RuntimeException("Failed to initialize the goal-related fields!", ಠ_ಠ);
    }
}
 

protected static void initializeFields() {
    try {

        ClassTemplate goalTemplate = new Reflection().reflect(MinecraftReflection.getMinecraftClass("PathfinderGoalSelector"));

        List<SafeMethod<Void>> methodCandidates = goalTemplate.getSafeMethods(withArguments(int.class, MinecraftReflection.getMinecraftClass("PathfinderGoal")));
        if (methodCandidates.size() > 0) {
            ADD_GOAL = methodCandidates.get(0).getAccessor();
        } else {
            throw new RuntimeException("Failed to get the addGoal method!");
        }

        List<SafeField<List>> fieldCandidates = goalTemplate.getSafeFields(withType(List.class));
        if (fieldCandidates.size() > 1) {
            GOALS = fieldCandidates.get(0).getAccessor();
            ACTIVE_GOALS = fieldCandidates.get(0).getAccessor();
        } else {
            throw new RuntimeException("Failed to initialize the goal-lists!");
        }

        // The GoalSelector
        ClassTemplate entityTemplate = new Reflection().reflect(MinecraftReflection.getMinecraftClass("EntityInsentient"));
        List<SafeField<Object>> candidates = entityTemplate.getSafeFields(withType(goalTemplate.getReflectedClass()));

        if (candidates.size() > 0) {
            GOAL_SELECTOR = candidates.get(0).getAccessor(); // the normal selector is the first one
        } else {
            throw new RuntimeException("Failed to initialize the GoalSelector field for the entities");
        }

    } catch (Exception ಠ_ಠ) {
        throw new RuntimeException("Failed to initialize the goal-related fields!", ಠ_ಠ);
    }
}
 

protected static void initializeFields() {
    try {

        ClassTemplate goalTemplate = new Reflection().reflect(MinecraftReflection.getMinecraftClass("PathfinderGoalSelector"));

        List<SafeMethod<Void>> methodCandidates = goalTemplate.getSafeMethods(withArguments(int.class, MinecraftReflection.getMinecraftClass("PathfinderGoal")));
        if (methodCandidates.size() > 0) {
            ADD_GOAL = methodCandidates.get(0).getAccessor();
        } else {
            throw new RuntimeException("Failed to get the addGoal method!");
        }

        List<SafeField<List>> fieldCandidates = goalTemplate.getSafeFields(withType(List.class));
        if (fieldCandidates.size() > 1) {
            GOALS = fieldCandidates.get(0).getAccessor();
            ACTIVE_GOALS = fieldCandidates.get(0).getAccessor();
        } else {
            throw new RuntimeException("Failed to initialize the goal-lists!");
        }

        // The GoalSelector
        ClassTemplate entityTemplate = new Reflection().reflect(MinecraftReflection.getMinecraftClass("EntityInsentient"));
        List<SafeField<Object>> candidates = entityTemplate.getSafeFields(withType(goalTemplate.getReflectedClass()));

        if (candidates.size() > 0) {
            GOAL_SELECTOR = candidates.get(0).getAccessor(); // the normal selector is the first one
        } else {
            throw new RuntimeException("Failed to initialize the GoalSelector field for the entities");
        }

    } catch (Exception ಠ_ಠ) {
        throw new RuntimeException("Failed to initialize the goal-related fields!", ಠ_ಠ);
    }
}