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Catch rate: Difference between revisions
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typos fixed: the exact same → exactly the same, occuring → occurring
Stratelier (talk | contribs) (→Generation V: the table makes more sense if we flip the columns -- input left, output right.) |
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The variables above are computed as follows: | The variables above are computed as follows: | ||
* ''d'' = Catch rate × 100 / Ball Factor, where the Ball Factor is 255 for the Poké Ball, 200 for the Great Ball, and 150 for all other balls. | * ''d'' = Catch rate × 100 / Ball Factor, where the Ball Factor is 255 for the Poké Ball, 200 for the Great Ball, and 150 for all other balls. | ||
* ''f'' = (HP<sub>max</sub> * 255 / Ball Factor) / (HP<sub>current</sub> / 4), where all divisions are rounded down to the nearest integer (the denominator is set to 1 if it is 0 as a result). The Ball Factor is 8 if a Great Ball is used, and 12 otherwise. | * ''f'' = (HP<sub>max</sub> * 255 / Ball Factor) / (HP<sub>current</sub> / 4), where all divisions are rounded down to the nearest integer (the denominator is set to 1 if it is 0 as a result). The Ball Factor is 8 if a Great Ball is used, and 12 otherwise. The resulting value is capped at a maximum of 255. | ||
The formula thus has several curious properties that do not apply in later generations: | The formula thus has several curious properties that do not apply in later generations: | ||
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* Under certain situations, a Great Ball is more effective than an Ultra Ball. In particular, Pokémon with high catch rates, no status, and above ½ HP may guarantee capture with a Great Ball but fail to do so with an Ultra Ball. | * Under certain situations, a Great Ball is more effective than an Ultra Ball. In particular, Pokémon with high catch rates, no status, and above ½ HP may guarantee capture with a Great Ball but fail to do so with an Ultra Ball. | ||
* The effect of reducing HP diminishes with lower catch rates, and the effect of inflicting status diminishes with higher catch rates. Regardless of catch rate, reducing the HP does not increase chances of capture at less than ½ HP with Great Balls, and ⅓ HP with other balls. | * The effect of reducing HP diminishes with lower catch rates, and the effect of inflicting status diminishes with higher catch rates. Regardless of catch rate, reducing the HP does not increase chances of capture at less than ½ HP with Great Balls, and ⅓ HP with other balls. | ||
* Inflicting a status ailment gives the player a flat chance (from 4.6% to 16.6%) to catch the Pokémon regardless of all other factors, making certain Pokémon easier to catch in Generation I than they are in later generations: A sleeping {{p|Mewtwo}} with full HP can be caught in about six Ultra Balls in Generation I, but from Generation II onwards the | * Inflicting a status ailment gives the player a flat chance (from 4.6% to 16.6%) to catch the Pokémon regardless of all other factors, making certain Pokémon easier to catch in Generation I than they are in later generations: A sleeping {{p|Mewtwo}} with full HP can be caught in about six Ultra Balls in Generation I, but from Generation II onwards exactly the same circumstances would require about 64 Ultra Balls—ten times as many. | ||
==Capture formula (Generation I)== | ==Capture formula (Generation I)== | ||
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==Critical capture== | ==Critical capture== | ||
In [[Generation V]], there is a chance of a critical capture, where the Poké Ball will only shake on the ground once before capture, and is much more likely to catch the Pokémon in the process. | In [[Generation V]], there is a chance of a critical capture, where the Poké Ball will only shake on the ground once before capture, and is much more likely to catch the Pokémon in the process. When a critical capture occurs, the Poké Ball will make a high-pitched whistling sound as it is thrown, then pause in mid-air, and shudder before it drops down to the ground. | ||
The probability of a critical capture | The probability of a critical capture occurring depends of the number of Pokémon that have previously been caught in the Pokédex. First, compute the value of ''a'' (the modified catch rate), as above. Then, whether or not this value is less than 255 (i.e. whether the Pokémon would be caught anyway), multiply this value by the following: | ||
{|{{bluetable2}}| | {|{{bluetable2}}| | ||
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Critical captures make one shake check instead of three, thus it has a higher probability of catching the Pokémon compared to a normal throw -- for example, throwing an ordinary Poké Ball at a full-health Pokémon with a catch rate of 3 (such as {{p|Kyurem}}) normally has only a 0.4% (1 in 255) chance of actually catching the Pokémon, but if a critical capture occurs, the chance of catching the Pokémon is a much-higher 25.03% (1 in 4). | Critical captures make one shake check instead of three, thus it has a higher probability of catching the Pokémon compared to a normal throw -- for example, throwing an ordinary Poké Ball at a full-health Pokémon with a catch rate of 3 (such as {{p|Kyurem}}) normally has only a 0.4% (1 in 255) chance of actually catching the Pokémon, but if a critical capture occurs, the chance of catching the Pokémon is a much-higher 25.03% (1 in 4). | ||
Note that contrary to its name, a critical capture is ''not'' guaranteed to actually catch the Pokémon (even if the critical capture itself is guaranteed to occur); the catch is determined by the shake check, which may still fail. | Note that contrary to its name, a critical capture is ''not'' guaranteed to actually catch the Pokémon (even if the critical capture itself is guaranteed to occur); the catch is determined by the shake check, which may still fail. In fact, a critical capture is only guaranteed to catch the Pokémon if the modified catch rate would guarantee its capture already. | ||
==Trivia== | ==Trivia== | ||