BlockBuiltScriptEvent.java

package com.denizenscript.denizen.events.block;

import com.denizenscript.denizen.objects.LocationTag;
import com.denizenscript.denizen.objects.MaterialTag;
import com.denizenscript.denizen.events.BukkitScriptEvent;
import com.denizenscript.denizen.utilities.implementation.BukkitScriptEntryData;
import com.denizenscript.denizencore.objects.ObjectTag;
import com.denizenscript.denizencore.objects.core.ElementTag;
import com.denizenscript.denizencore.scripts.ScriptEntryData;
import com.denizenscript.denizencore.utilities.CoreUtilities;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.block.BlockCanBuildEvent;

public class BlockBuiltScriptEvent extends BukkitScriptEvent implements Listener {

    // <--[event]
    // @Events
    // <block> being built (on <block>)
    //
    // @Group Block
    //
    // @Location true
    //
    // @Cancellable true
    //
    // @Triggers when an attempt is made to build a block on another block. Not necessarily caused by players. Does not normally fire when players place blocks. Prefer <@link event player places block> for that.
    //
    // @Context
    // <context.location> returns the LocationTag of the block the player is trying to build on.
    // <context.old_material> returns the MaterialTag of the block the player is trying to build on.
    // <context.new_material> returns the MaterialTag of the block the player is trying to build.
    //
    // @Determine
    // "BUILDABLE" to allow the building.
    //
    // @Player when the event is triggered in relation to a player that is causing the block build.
    //
    // -->

    public BlockBuiltScriptEvent() {
        registerCouldMatcher("<block> being built (on <block>)");
    }

    public LocationTag location;
    public MaterialTag old_material;
    public MaterialTag new_material;
    public BlockCanBuildEvent event;

    @Override
    public boolean matches(ScriptPath path) {
        if (!runInCheck(path, location)) {
            return false;
        }
        String mat2 = path.eventArgLowerAt(4);
        if (mat2.length() > 0 && !old_material.tryAdvancedMatcher(mat2)) {
            return false;
        }
        if (!new_material.tryAdvancedMatcher(path.eventArgLowerAt(0))) {
            return false;
        }
        return super.matches(path);
    }

    @Override
    public boolean applyDetermination(ScriptPath path, ObjectTag determinationObj) {
        if (determinationObj instanceof ElementTag) {
            String determination = determinationObj.toString();
            String lower = CoreUtilities.toLowerCase(determination);
            if (lower.equals("buildable")) {
                cancelled = false;
                return true;
            }
        }
        return super.applyDetermination(path, determinationObj);
    }

    @Override
    public ScriptEntryData getScriptEntryData() {
        return new BukkitScriptEntryData(event.getPlayer());
    }

    @Override
    public void cancellationChanged() {
        event.setBuildable(!cancelled);
        super.cancellationChanged();
    }

    @Override
    public ObjectTag getContext(String name) {
        switch (name) {
            case "location": return location;
            case "new_material": return new_material;
            case "old_material": return old_material;
        }
        return super.getContext(name);
    }

    @EventHandler
    public void onBlockBuilt(BlockCanBuildEvent event) {
        location = new LocationTag(event.getBlock().getLocation());
        old_material = new MaterialTag(event.getBlock());
        new_material = new MaterialTag(event.getBlockData());
        cancelled = !event.isBuildable();
        this.event = event;
        fire(event);
    }
}