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POC++ checking enum flags
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copied!<p>In one of my classes, I have an integer that stores a set of enum flags like so:</p> <pre><code>enum AttackFlags { Contact = 1, //Move connects with target Projectile = 2, //Attack is projectile based Unblockable = 4, //Attack can not be blocked UncounterableLv1 = 8, //Attack can't be countered except by extreme counter attack skills/status effects UncounterableLv2 = 16, //Attack can not be countered Flinches = 32, //Has a chance to stun the enemy, pushing back their next turn Unreflectable = 64, //Attack penetrates reflect. Only checked for Magic attacks IgnoreDefenderStatusEffects = 128, //Ignores active status effects on the defender IgnoreAttackerStatusEffects = 256, //Ignores active status effects on the attacker IgnoreDefenderAbilities = 512, //Ignore the defenders abilities IgnoreAttackerAbilities = 1024, //Ignore the attackers abilities IgnoreArmorRating = 2048, //Ignore the defensive boosts of armor IgnoreWeaponRating = 4096, //Ignore the attack boost from weapons HighCritical = 8192, //The move has an increased chance to crit CausesStatus = 16384, //Can the move cause status effects? Elemental = 32768, //Is the move elemental based? Unimplemented = 65536, //has the move been implemented yet? ModsTimer = 131072, //Does it have an effect on the target or users timer? Heals = 262144, //Does the move heal? SecondaryEffects = 524288, //Attack has additional effects besides basic attack PhysicalAttackFlag = 1048576, //Is the Class Physically based? I.E. blocked by Protect and Shield MagicAttackFlag = 2097152, //Is the move Magically Based? I.E. is it affected by things like Shell MultiHit = 4194304, //Does it enxcapsulate more then 1 hit SingleUse = 8388608, //Attack can only be used once per battle DoesNotCauseDamage = 16777216 }; class Attack { int AtkFlags; //Stores AttackFlags |'d together } </code></pre> <p>I'd like to add a method to my Attack class with the following signature</p> <pre><code>bool HasAttackFlags(int flags); </code></pre> <p>flags would be numerous AttackFlags |'d together. If I only wanted to check against a single flag, I could just & AtkFlags and flags together, but because I have to check against multiple possible flags this won't work. How can I properly check for multiple flags? I'd like to avoid passing a vector/set of flags to check against as simply |'ing a set of flags together is simpler then constructing a vector/set</p> <p>Thanks in advance</p> <p>EDIT:</p> <p>To clarify what I mean, I might have the following</p> <pre><code>Attack atk; atk.AtkFlags = Contact | Projectile | Heals | MagicAttackFlag; </code></pre> <p>Then later, I'd want to check the flags on atk like so:</p> <pre><code>bool res = atk.HasAttackFlags(Contact | Projectile); </code></pre> <p>res should be true and conversely</p> <pre><code>bool res = atk.HasAttackFlags(Contact | Unreflectable); </code></pre> <p>should be false becase AtkFlags does not contain both Contact adn Unreflectable.</p>

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