|
| 1 | +# ============================================================================= |
| 2 | +# Copyright (C) 2010 Diego Duclos |
| 3 | +# |
| 4 | +# This file is part of pyfa. |
| 5 | +# |
| 6 | +# pyfa is free software: you can redistribute it and/or modify |
| 7 | +# it under the terms of the GNU General Public License as published by |
| 8 | +# the Free Software Foundation, either version 3 of the License, or |
| 9 | +# (at your option) any later version. |
| 10 | +# |
| 11 | +# pyfa is distributed in the hope that it will be useful, |
| 12 | +# but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | +# GNU General Public License for more details. |
| 15 | +# |
| 16 | +# You should have received a copy of the GNU General Public License |
| 17 | +# along with pyfa. If not, see <http://www.gnu.org/licenses/>. |
| 18 | +# ============================================================================= |
| 19 | + |
| 20 | +# ============================================================================= |
| 21 | +# Constants |
| 22 | +# ============================================================================= |
| 23 | + |
| 24 | +# Navy faction ammo prefixes (for S/M/L ammo) |
| 25 | +NAVY_PREFIXES = ( |
| 26 | + 'Imperial Navy ', |
| 27 | + 'Republic Fleet ', |
| 28 | + 'Caldari Navy ', |
| 29 | + 'Federation Navy ', |
| 30 | +) |
| 31 | + |
| 32 | +# Capital (XL) "navy-tier" faction ammo prefixes |
| 33 | +# There is no empire Navy XL ammo, so pirate faction serves as the "navy" tier for capitals |
| 34 | +CAPITAL_NAVY_PREFIXES = ( |
| 35 | + 'Sansha ', |
| 36 | + 'Arch Angel ', |
| 37 | + 'Shadow ', |
| 38 | +) |
| 39 | + |
| 40 | + |
| 41 | +# ============================================================================= |
| 42 | +# Quality Tier Filtering |
| 43 | +# ============================================================================= |
| 44 | + |
| 45 | +def filterChargesByQuality(charges, qualityTier): |
| 46 | + """ |
| 47 | + Filter charges based on quality tier selection. |
| 48 | +
|
| 49 | + Args: |
| 50 | + charges: List of charge items |
| 51 | + qualityTier: 't1', 'navy', or 'all' |
| 52 | +
|
| 53 | + Returns: |
| 54 | + Filtered list of charges |
| 55 | +
|
| 56 | + Tiers are cumulative (each tier includes everything below it): |
| 57 | + - 't1': Tech I only (metaGroup 1) |
| 58 | + - 'navy': t1 + Tech II (metaGroup 2) + Navy faction ammo (Imperial Navy, |
| 59 | + Republic Fleet, Caldari Navy, Federation Navy) |
| 60 | + For XL (capital) ammo: includes pirate faction (Sansha, Arch Angel, Shadow) |
| 61 | + - 'all': Everything including high-tier faction (Blood, Dark Blood, True Sansha, etc.) |
| 62 | +
|
| 63 | + Charges with no meta group in the game data (metaGroupID is NULL - e.g. all |
| 64 | + Baryon Exotic Plasma and every XL Triglavian charge) are treated as Tech I. |
| 65 | + Otherwise they would be filtered out of every tier despite being basic ammo. |
| 66 | + """ |
| 67 | + if qualityTier == 'all': |
| 68 | + return charges |
| 69 | + |
| 70 | + filtered = [] |
| 71 | + classifiable = False # Did any charge have a meta group we could rank? |
| 72 | + for charge in charges: |
| 73 | + mg = charge.metaGroup |
| 74 | + mgId = mg.ID if mg else None |
| 75 | + if mgId is not None: |
| 76 | + classifiable = True |
| 77 | + |
| 78 | + # Tech I (metaGroup 1), or unclassified ammo (NULL metaGroup) treated as |
| 79 | + # Tech I - always included in every tier. |
| 80 | + if mgId == 1 or mgId is None: |
| 81 | + filtered.append(charge) |
| 82 | + continue |
| 83 | + |
| 84 | + # 'navy' tier additionally includes Tech II and Navy faction ammo. |
| 85 | + if qualityTier == 'navy': |
| 86 | + # Tech II (metaGroup 2) - distinct ammo type like Conflagration, Void, etc. |
| 87 | + if mgId == 2: |
| 88 | + filtered.append(charge) |
| 89 | + continue |
| 90 | + |
| 91 | + # Navy faction ammo (metaGroup 4) |
| 92 | + if mgId == 4: |
| 93 | + # Check if it's XL (capital) ammo by name suffix |
| 94 | + isCapital = charge.name.endswith(' XL') |
| 95 | + |
| 96 | + if isCapital: |
| 97 | + # For capital ammo, use pirate faction prefixes as "navy" tier |
| 98 | + if any(charge.name.startswith(prefix) for prefix in CAPITAL_NAVY_PREFIXES): |
| 99 | + filtered.append(charge) |
| 100 | + else: |
| 101 | + # For subcap ammo, use empire Navy prefixes |
| 102 | + if any(charge.name.startswith(prefix) for prefix in NAVY_PREFIXES): |
| 103 | + filtered.append(charge) |
| 104 | + |
| 105 | + # Honor the user's tier selection even when it excludes every charge (the |
| 106 | + # weapon simply has no ammo in this tier). Only fall back to the full list |
| 107 | + # when no charge could be classified by meta group at all - in that case |
| 108 | + # the tier system does not apply and returning nothing would wrongly hide |
| 109 | + # the weapon. |
| 110 | + if filtered or classifiable: |
| 111 | + return filtered |
| 112 | + return charges |
| 113 | + |
| 114 | + |
| 115 | +# ============================================================================= |
| 116 | +# Charge Stats Extraction |
| 117 | +# ============================================================================= |
| 118 | + |
| 119 | +def getChargeStats(charge): |
| 120 | + """ |
| 121 | + Extract charge stats including damage values and multipliers. |
| 122 | +
|
| 123 | + Args: |
| 124 | + charge: The charge item |
| 125 | +
|
| 126 | + Returns: |
| 127 | + Dict with damage values and range/falloff/tracking multipliers |
| 128 | + """ |
| 129 | + em = charge.getAttribute('emDamage') or 0 |
| 130 | + thermal = charge.getAttribute('thermalDamage') or 0 |
| 131 | + kinetic = charge.getAttribute('kineticDamage') or 0 |
| 132 | + explosive = charge.getAttribute('explosiveDamage') or 0 |
| 133 | + |
| 134 | + return { |
| 135 | + 'emDamage': em, |
| 136 | + 'thermalDamage': thermal, |
| 137 | + 'kineticDamage': kinetic, |
| 138 | + 'explosiveDamage': explosive, |
| 139 | + 'totalDamage': em + thermal + kinetic + explosive, |
| 140 | + 'rangeMultiplier': charge.getAttribute('weaponRangeMultiplier') or 1, |
| 141 | + 'falloffMultiplier': charge.getAttribute('fallofMultiplier') or 1, |
| 142 | + 'trackingMultiplier': charge.getAttribute('trackingSpeedMultiplier') or 1 |
| 143 | + } |
| 144 | + |
| 145 | + |
| 146 | +# ============================================================================= |
| 147 | +# Resist Application |
| 148 | +# ============================================================================= |
| 149 | + |
| 150 | +def applyResists(chargeStats, tgtResists): |
| 151 | + """ |
| 152 | + Apply target resists to charge stats. |
| 153 | +
|
| 154 | + Args: |
| 155 | + chargeStats: Dict from getChargeStats |
| 156 | + tgtResists: Tuple of (em, therm, kin, explo) resist values (0-1) |
| 157 | +
|
| 158 | + Returns: |
| 159 | + New dict with resisted damage values |
| 160 | + """ |
| 161 | + if not tgtResists: |
| 162 | + return chargeStats |
| 163 | + |
| 164 | + emRes, thermRes, kinRes, exploRes = tgtResists |
| 165 | + |
| 166 | + em = chargeStats['emDamage'] * (1 - emRes) |
| 167 | + thermal = chargeStats['thermalDamage'] * (1 - thermRes) |
| 168 | + kinetic = chargeStats['kineticDamage'] * (1 - kinRes) |
| 169 | + explosive = chargeStats['explosiveDamage'] * (1 - exploRes) |
| 170 | + |
| 171 | + result = chargeStats.copy() |
| 172 | + result.update({ |
| 173 | + 'emDamage': em, |
| 174 | + 'thermalDamage': thermal, |
| 175 | + 'kineticDamage': kinetic, |
| 176 | + 'explosiveDamage': explosive, |
| 177 | + 'totalDamage': em + thermal + kinetic + explosive |
| 178 | + }) |
| 179 | + return result |
| 180 | + |
| 181 | + |
| 182 | +# ============================================================================= |
| 183 | +# Charge Data Precomputation |
| 184 | +# ============================================================================= |
| 185 | + |
| 186 | +def precomputeChargeData(turretBase, charges, skillMult=1.0, tgtResists=None): |
| 187 | + """ |
| 188 | + Pre-compute constant values for each charge. |
| 189 | +
|
| 190 | + This computes effective stats (turret base * charge multipliers) and |
| 191 | + raw volley for each charge, which can then be used for fast lookups. |
| 192 | +
|
| 193 | + Args: |
| 194 | + turretBase: Base turret stats dict from getTurretBaseStats |
| 195 | + charges: List of charge items |
| 196 | + skillMult: Skill damage multiplier from getSkillMultiplier |
| 197 | + tgtResists: Target resists tuple or None |
| 198 | +
|
| 199 | + Returns: |
| 200 | + List of dicts with: name, raw_volley, effective_optimal, |
| 201 | + effective_falloff, effective_tracking |
| 202 | +
|
| 203 | + Note: We do NOT store raw_dps - it's derived from raw_volley / cycle_time |
| 204 | + when needed at the mixin level. |
| 205 | + """ |
| 206 | + chargeData = [] |
| 207 | + |
| 208 | + for charge in charges: |
| 209 | + stats = getChargeStats(charge) |
| 210 | + |
| 211 | + # Apply resists early for efficiency |
| 212 | + if tgtResists: |
| 213 | + stats = applyResists(stats, tgtResists) |
| 214 | + |
| 215 | + # Compute effective turret stats with charge modifiers |
| 216 | + effectiveOptimal = turretBase['optimal'] * stats['rangeMultiplier'] |
| 217 | + effectiveFalloff = turretBase['falloff'] * stats['falloffMultiplier'] |
| 218 | + effectiveTracking = turretBase['tracking'] * stats['trackingMultiplier'] |
| 219 | + |
| 220 | + # Compute raw volley (unmodified by range/tracking) |
| 221 | + rawVolley = stats['totalDamage'] * skillMult * turretBase['damageMultiplier'] |
| 222 | + |
| 223 | + chargeData.append({ |
| 224 | + 'name': charge.name, |
| 225 | + 'raw_volley': rawVolley, |
| 226 | + 'effective_optimal': effectiveOptimal, |
| 227 | + 'effective_falloff': effectiveFalloff, |
| 228 | + 'effective_tracking': effectiveTracking |
| 229 | + }) |
| 230 | + |
| 231 | + return chargeData |
| 232 | + |
| 233 | + |
| 234 | +def getLongestRangeMultiplier(charges): |
| 235 | + """ |
| 236 | + Get the maximum range multiplier from a list of charges. |
| 237 | +
|
| 238 | + Used to calculate the max effective range of a turret for cache sizing. |
| 239 | +
|
| 240 | + Args: |
| 241 | + charges: List of charge items |
| 242 | +
|
| 243 | + Returns: |
| 244 | + The highest rangeMultiplier value among all charges |
| 245 | + """ |
| 246 | + if not charges: |
| 247 | + return 1.0 |
| 248 | + |
| 249 | + maxRangeMult = 1.0 |
| 250 | + for charge in charges: |
| 251 | + rangeMult = charge.getAttribute('weaponRangeMultiplier') or 1.0 |
| 252 | + if rangeMult > maxRangeMult: |
| 253 | + maxRangeMult = rangeMult |
| 254 | + |
| 255 | + return maxRangeMult |
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