lakebane/src/engine/ConfigParsing/EffectsParser.java

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//      Magicbane Emulator Project © 2013 - 2024
//                www.magicbane.com

package engine.ConfigParsing;

import engine.ConfigParsing.EffectEntry.EffectEntry;
import engine.ConfigParsing.EffectEntry.EffectModifier;
import engine.gameManager.ConfigManager;
import engine.mbEnums;
import org.pmw.tinylog.Logger;

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class EffectsParser {

    public static String EffectsPath = ConfigManager.DEFAULT_DATA_DIR + "wpak/Effects.cfg";
    public static HashMap<String, EffectEntry> effect_data = new HashMap<>();
    private static final Pattern EFFECT_REGEX = Pattern.compile("(?<=EFFECTBEGIN)(.+?)(?=EFFECTEND)", Pattern.DOTALL);
    private static final Pattern SOURCE_REGEX = Pattern.compile("(?<=SOURCEBEGIN)(.+?)(?=SOURCEEND)", Pattern.DOTALL);
    private static final Pattern MODS_REGEX = Pattern.compile("(?<=MODSBEGIN)(.+?)(?=MODSEND)", Pattern.DOTALL);
    private static final Pattern STRSPLIT_REGEX = Pattern.compile("([^\"]\\S*|\"[^\"]*\")\\s*");

    public static void init() throws IOException {

        byte[] fileData = Files.readAllBytes(Paths.get(EffectsPath));
        String fileContents = new String(fileData);
        Matcher matcher = EFFECT_REGEX.matcher(fileContents);

        // Iterate effect entries from .wpak config data

        while (matcher.find()) {
            EffectEntry effectEntry = parseEffectEntry(matcher.group());

            if (effectEntry != null)
                effect_data.put(effectEntry.id, effectEntry);
        }
    }

    private static EffectEntry parseEffectEntry(String effectData) {
        EffectEntry effectEntry = new EffectEntry();

        // Remove all lines that contain a # and leading/trailing blanks

        effectData = effectData.replaceAll("(?m)^.*#.*\r?\n?", "");
        effectData = effectData.trim();

        // Parse effect entry description

        String firstLine;
        ArrayList<String> effectDescription = new ArrayList<>();

        // Some effects exist without sources/mods or conditions
        // (ACID "MOB" 0)

        if (effectData.indexOf('\n') > 0)
            firstLine = effectData.substring(0, effectData.indexOf('\n'));
        else
            firstLine = effectData;

        // Regex ignores spaces within quotes

        Matcher matcher = STRSPLIT_REGEX.matcher(firstLine);

        while (matcher.find())
            effectDescription.add(matcher.group(1).trim());

        effectEntry.id = effectDescription.get(0);
        effectEntry.name = effectDescription.get(1);
        effectEntry.name = effectEntry.name.replaceAll("\"", "");

        // Some effect mods have no icon
        // (SEEINVIS-SHADE "See Invis")

        if (effectDescription.size() == 3)
            effectEntry.icon = Integer.parseInt(effectDescription.get(2));
        else
            effectEntry.icon = 0;

        // Parse source entries

        matcher = SOURCE_REGEX.matcher(effectData);

        while (matcher.find())
            effectEntry.sources.add(matcher.group().trim());

        // Parse modifier entries

        matcher = MODS_REGEX.matcher(effectData);

        // Iterate effect entries from .wpak config data

        while (matcher.find()) {
            EffectModifier effectModifier = parseModEntry(matcher.group());

            if (effectModifier != null)
                effectEntry.mods.add(effectModifier);
        }

        return effectEntry;

    }

    private static EffectModifier parseModEntry(String modData) {

        EffectModifier effectModifier = new EffectModifier();

        String[] modEntries = modData.trim().split("\n");

        for (String modEntry : modEntries) {

            ArrayList<String> modValues = new ArrayList<>();
            Matcher matcher = STRSPLIT_REGEX.matcher(modEntry.trim());

            while (matcher.find())
                modValues.add(matcher.group(1).trim());

            effectModifier.type = mbEnums.ModType.valueOf(modValues.get(0).trim());

            switch (effectModifier.type) {
                case AnimOverride:
                    effectModifier.min = Integer.parseInt(modValues.get(1).trim());
                    effectModifier.max = Integer.parseInt(modValues.get(2).trim());
                    break;
                case Health:
                case Mana:
                case Stamina:
                    effectModifier.min = Integer.parseInt(modValues.get(1).trim());
                    effectModifier.max = Integer.parseInt(modValues.get(2).trim());
                    effectModifier.scale = Float.parseFloat(modValues.get(3).trim());
                    // Parameter 4 is always 0.
                    effectModifier.compoundCurveType = mbEnums.CompoundCurveType.valueOf(modValues.get(5).trim());
                    effectModifier.arg1 = modValues.get(6).trim();
                case Attr:
                case Resistance:
                case Skill:
                    effectModifier.min = Integer.parseInt(modValues.get(1).trim());
                    effectModifier.scale = Float.parseFloat(modValues.get(2).trim());
                    effectModifier.compoundCurveType = mbEnums.CompoundCurveType.valueOf(modValues.get(3).trim());
                    effectModifier.arg1 = modValues.get(4).trim();
                    break;
                case BladeTrails:
                case CannotCast:
                    break;
                case MeleeDamageModifier:
                case OCV:
                case DCV:
                case AttackDelay:
                case AdjustAboveDmgCap:
                case DamageCap:
                case ArmorPiercing:
                case Speed:
                    effectModifier.min = Integer.parseInt(modValues.get(1).trim());
                    effectModifier.scale = Float.parseFloat(modValues.get(2).trim());
                    effectModifier.compoundCurveType = mbEnums.CompoundCurveType.valueOf(modValues.get(3).trim());
                    break;
                case ItemName:
                    effectModifier.arg1 = modValues.get(1).trim();
                    effectModifier.arg2 = modValues.get(2).trim();
                    break;
                default:
                    Logger.error("Unhandled type: " + effectModifier.type);
                    break;
            }

        }

        return effectModifier;
    }

}