264 lines
10 KiB
C#
264 lines
10 KiB
C#
using UnityEngine;
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using System;
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using System.Collections.Generic;
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using System.Globalization;
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[CreateAssetMenu(fileName = "NewSkillDefinition", menuName = "Combat/SkillDefinition")]
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public class SkillDefinition : ScriptableObject
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{
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public enum SkillTrigger
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{
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None,
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OnGameStart,
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OnNoteHit,
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OnManaFull
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}
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[Header("标识 (Identity)")]
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[Tooltip("技能的内部唯一 ID，用于代码中识别此技能")]
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public string skillId;
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[Tooltip("技能在 UI 中显示的名称")]
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public string displayName;
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[Tooltip("简短注释/摘要，仅供设计时参考，不影响运行")]
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[TextArea(1,2)]
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public string summaryInfo;
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[Header("效果 (Effect)")]
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[Tooltip("技能的效果类型，例如即时伤害、持续伤害、治疗、增益/减益等")]
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public EffectType effectType = EffectType.DamageSingleEnemy;
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[Tooltip("默认目标选择器：决定技能默认作用的目标范围（自身/所有友军/敌方等）")]
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public Selector defaultSelector = Selector.CurrentEnemies;
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[Tooltip("当选择 FromFormula 时使用的表达式字符串。支持使用 AllyHero_SO 中同名数值字段作为变量，例如: attack, maxHP, maxMana, damageResistance, scoreEfficiency, ally_currentEXP, slot。示例: 'attack * 1.5 + maxHP * 0.1 + 20'。如果只填写一个数字（例如 '120'），则等同于指定固定数值。")]
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[TextArea(2,4)]
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public string formula = "";
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[Tooltip("默认持续时间（秒），用于持续效果或 Buff 的持续时长。若为 0 则视为一次性/即时技能（不会按 tick 分发）")]
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public float defaultDuration = 0f;
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[Tooltip("默认打点间隔（秒），用于持续效果的每次触发间隔（例如每秒扣血）。若为 0 则视为一次性/即时技能")]
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public float defaultTickInterval = 1f;
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[Header("标志 (Flags)")]
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[Tooltip("是否必须指定单体目标（true 表示此技能通常需要传入 specificTarget）")]
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public bool requiresSpecificTarget = false; // if true, skill usually targets a specific GameObject
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[Tooltip("是否直接作用于目标的数据（true 表示 SkillBuilder 会直接调用 ICombatant/AllyCombatant，而非通过 EffectSystem 分发）")]
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public bool operateDirectly = false; // if true, SkillBuilder will operate on ICombatant/AllyCombatant fields directly and update UI, instead of calling EffectSystem
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[Tooltip("技能的描述或备注，便于设计时填写说明")]
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[TextArea(8,4)]
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public string description;
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[Header("触发条件 (Trigger)")]
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[Tooltip("技能触发条件：进入游戏时、击打音符时、法力值满时等")]
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public SkillTrigger triggerCondition = SkillTrigger.None;
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[Tooltip("仅当 triggerCondition == OnNoteHit 时生效：达到该判定或更高时触发（可选 Miss/Good/Great/Perfect）。特别说明：选择 Miss 表示“仅在判定为 Miss 时触发”，其它判定（Good/Great/Perfect）不会触发。）")]
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public NoteTriggerThreshold onNoteHitMinThreshold = NoteTriggerThreshold.Good;
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[Tooltip("仅当 triggerCondition == OnNoteHit 时生效：指定此技能由 Tap（点击）/Hold（长按尾段）或 Either（任意）触发。若选择 Hold，则只有长音符尾段会触发；若选择 Tap，则仅短按触发；Either 则两者均可（但 Hold 仍可被显式禁用）。")]
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public NoteTypeTrigger noteTriggerType = NoteTypeTrigger.Either;
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[Tooltip("仅当 triggerCondition == OnNoteHit 时生效：触发后的冷却时间（秒），在冷却时间内再次满足判定不会触发技能")]
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public float onNoteHitCooldown = 0f;
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// Minimum judge quality required to trigger on note hit
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public enum NoteTriggerThreshold
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{
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// 当设置为 Miss 时，技能仅在判定为 Miss（quality == 0）时触发
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Miss = 0,
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Good = 1,
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Great = 2,
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Perfect = 3
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}
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// 新增：指定技能应由 Tap/ Hold/ Either 触发
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public enum NoteTypeTrigger
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{
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Tap,
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Hold,
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Either
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}
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// 运行时辅助属性：当 defaultDuration 或 defaultTickInterval 为 0 时，视作一次性即时技能
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public bool IsSingleInstance => defaultDuration <= 0f || defaultTickInterval <= 0f;
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// 返回实际用于分发打点的间隔（若为一次性技能则返回 0）
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public float GetEffectiveTickInterval()
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{
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return IsSingleInstance ? 0f : Mathf.Max(0.0001f, defaultTickInterval);
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}
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private void OnValidate()
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{
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// 保证数值为非负
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if (defaultDuration < 0f) defaultDuration = 0f;
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if (defaultTickInterval < 0f) defaultTickInterval = 0f;
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if (onNoteHitCooldown < 0f) onNoteHitCooldown = 0f;
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}
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// --- Simple expression evaluator used when valueMode == FromFormula ---
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// Supports variables (alphanumeric), floats, operators + - * / and parentheses.
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public static bool TryEvaluateFormula(string expr, Dictionary<string, float> variables, out float result)
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{
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result = 0f;
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if (string.IsNullOrWhiteSpace(expr)) return false;
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try
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{
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var tokens = Tokenize(expr);
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var rpn = ToRPN(tokens);
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result = EvalRPN(rpn, variables);
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return true;
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}
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catch (Exception e)
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{
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Debug.LogWarning($"SkillDefinition: failed to evaluate formula '{expr}': {e.Message}");
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return false;
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}
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}
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// tokenization
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private enum TokType { Number, Ident, Op, LParen, RParen }
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private struct Token { public TokType type; public string text; }
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private static List<Token> Tokenize(string s)
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{
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var outp = new List<Token>();
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int i = 0;
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while (i < s.Length)
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{
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char c = s[i];
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if (char.IsWhiteSpace(c)) { i++; continue; }
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if (c == '(') { outp.Add(new Token { type = TokType.LParen, text = "(" }); i++; continue; }
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if (c == ')') { outp.Add(new Token { type = TokType.RParen, text = ")" }); i++; continue; }
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if ("+-*/".IndexOf(c) >= 0)
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{
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outp.Add(new Token { type = TokType.Op, text = c.ToString() }); i++; continue;
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}
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if (char.IsDigit(c) || c == '.')
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{
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int start = i;
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while (i < s.Length && (char.IsDigit(s[i]) || s[i] == '.')) i++;
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outp.Add(new Token { type = TokType.Number, text = s.Substring(start, i - start) });
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continue;
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}
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if (char.IsLetter(c) || c == '_')
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{
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int start = i;
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while (i < s.Length && (char.IsLetterOrDigit(s[i]) || s[i] == '_')) i++;
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outp.Add(new Token { type = TokType.Ident, text = s.Substring(start, i - start) });
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continue;
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}
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throw new Exception($"Invalid char in formula: '{c}'");
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}
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// Handle unary plus/minus: when + or - appears at start or after operator or left paren
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var fixedTokens = new List<Token>();
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for (int idx = 0; idx < outp.Count; idx++)
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{
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var t = outp[idx];
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if (t.type == TokType.Op && (t.text == "-" || t.text == "+"))
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{
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bool unary = (idx == 0) || (outp[idx - 1].type == TokType.Op) || (outp[idx - 1].type == TokType.LParen);
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if (unary)
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{
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// insert 0 before unary +/- to convert unary into binary (0 +/- x)
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fixedTokens.Add(new Token { type = TokType.Number, text = "0" });
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}
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}
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fixedTokens.Add(t);
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}
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return fixedTokens;
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}
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private static int Precedence(string op)
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{
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if (op == "+" || op == "-") return 1;
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if (op == "*" || op == "/") return 2;
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return 0;
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}
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private static List<Token> ToRPN(List<Token> tokens)
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{
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var output = new List<Token>();
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var stack = new Stack<Token>();
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foreach (var t in tokens)
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{
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if (t.type == TokType.Number || t.type == TokType.Ident)
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{
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output.Add(t);
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}
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else if (t.type == TokType.Op)
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{
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while (stack.Count > 0 && stack.Peek().type == TokType.Op && Precedence(stack.Peek().text) >= Precedence(t.text))
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{
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output.Add(stack.Pop());
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}
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stack.Push(t);
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}
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else if (t.type == TokType.LParen)
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{
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stack.Push(t);
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}
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else if (t.type == TokType.RParen)
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{
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while (stack.Count > 0 && stack.Peek().type != TokType.LParen)
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{
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output.Add(stack.Pop());
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}
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if (stack.Count == 0) throw new Exception("Mismatched parentheses");
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stack.Pop(); // pop LParen
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}
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}
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while (stack.Count > 0)
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{
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var tk = stack.Pop();
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if (tk.type == TokType.LParen || tk.type == TokType.RParen) throw new Exception("Mismatched parentheses");
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output.Add(tk);
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}
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return output;
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}
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private static float EvalRPN(List<Token> rpn, Dictionary<string, float> vars)
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{
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var st = new Stack<float>();
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foreach (var t in rpn)
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{
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if (t.type == TokType.Number)
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{
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if (!float.TryParse(t.text, NumberStyles.Float, CultureInfo.InvariantCulture, out float v)) throw new Exception($"Invalid number '{t.text}'");
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st.Push(v);
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}
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else if (t.type == TokType.Ident)
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{
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if (vars != null && vars.TryGetValue(t.text, out float v)) st.Push(v);
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else
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{
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// unknown identifiers treat as 0 but warn
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Debug.LogWarning($"SkillDefinition: unknown variable '{t.text}' in formula, treated as 0");
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st.Push(0f);
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}
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}
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else if (t.type == TokType.Op)
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{
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if (st.Count < 2) throw new Exception("Insufficient values for operator");
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float b = st.Pop(); float a = st.Pop();
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switch (t.text)
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{
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case "+": st.Push(a + b); break;
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case "-": st.Push(a - b); break;
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case "*": st.Push(a * b); break;
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case "/": st.Push(a / b); break;
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default: throw new Exception($"Unsupported operator {t.text}");
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}
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}
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else throw new Exception("Invalid token in RPN");
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}
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if (st.Count != 1) throw new Exception("Invalid expression evaluation");
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return st.Pop();
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}
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}
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