Editing User:Blaziken257/Telefang RNG

In [[Telefang 1]], random events rely on a random number generator. It is generated using the following variables:

* The frame counter, located at <tt>0xC3C0</tt> in RAM. This is an 8-bit number, and it increments by 1 for every frame that passes (1 frame = 1/60 second). However, it temporarily freezes in certain situations, mainly when the game has to load screens. The frame counter makes random actions frame dependent.
* Seed 1, located at <tt>0xC41F</tt> in RAM. This value is also an 8-bit number, and it changes every time a random event occurs, and its value depends on the current value of the frame counter, as well as the current values of both seeds.
* Seed 2, located at <tt>0xC420</tt> in RAM. This 8-bit value functions similarly to Seed 1, although it influences the randomly generated number more than Seed 1.
* Seed sum, the 8-bit sum of the two seeds, located at <tt>0xC400</tt> in RAM. '''This is the randomly generated number''', most directly used to determine random events.

==Seed calculation==
Note: Original thread here: http://s15.zetaboards.com/Tulunk_Village/topic/6967791/1/

First, the game takes the current value of the frame counter and uses a formula to calculate a new 16-bit number, which is later added to the seeds.

F = (Frame counter * 256) + ((int(((<span class="explain" title="Swaps the nibbles in the 8-bit value (ex. 9D becomes D9).">Swap nibbles(Frame counter)</span> + 1) mod 256) / 2) + 135) mod 256)

Next, the game calculates a number based on the current value of the two seeds. This formula is simpler:

S = Seed 1 * 256 + Seed 2

To obtain seed 1:

Seed 1<sub>new</sub> = <span class="explain" title="Lower 8 bits of F+S">((F+S) mod 256)</span>

To obtain seed 2:

Seed 2<sub>new</sub> = <span class="explain" title="Upper 8 bits of F+S">(int(((F+S) mod 65536)/256))</span> xor <span class="explain" title="Lower 8 bits of F+S">((F+S) mod 256)</span>

The seeds are then added together (reduced to 8 bits), and this is the randomly generated number.

==Random events==
===Wild Denjuu===
====Species====
''For more information, see one of [[User:Blaziken257#Wild_Denjuu|these pages]].
<!--3C57-->
{| class="wikitable"
|-
! Random number range
! Probability
! Denjuu Group
|-
| 0-24
| <span class="explain" title="25/256 or 9.765625%">10%</span>
| Denjuu 4
|-
| 25-75
| <span class="explain" title="51/256 or 19.921875%">20%</span>
| Denjuu 3
|-
| 76-152
| <span class="explain" title="77/256 or 30.078125%">30%</span>
| Denjuu 2
|-
| 153-255
| <span class="explain" title="103/256 or 40.234375%">40%</span>
| Denjuu 1
|-
|}

====Level====
<!--701B8-->
{| class="wikitable"
|-
! Random number range
! Probability
! Level offset
|-
| 0-63
| <span class="explain" title="64/256">25%</span>
| +1
|-
| 64-127
| <span class="explain" title="64/256">25%</span>
| -1
|-
| 128-255
| <span class="explain" title="128/256">50%</span>
| 0
|}

====Personality====
<!--702A1-->
{| class="wikitable"
|-
! Random number range
! Probability
! Personality
|-
| 0-19, 240-255<span class="explain" title="This is most likely a bug.">*</span>
| <span class="explain" title="36/256 or 14.0625%">14%</span>
| 0 - のんびり
|-
| 20-39
| <span class="explain" title="20/256 or 7.8125%">8%</span>
| 1 - ちょーのんびり
|-
| 40-59
| <span class="explain" title="20/256 or 7.8125%">8%</span>
| 2 - あわてもの
|-
| 60-79
| <span class="explain" title="20/256 or 7.8125%">8%</span>
| 3 - ちょーあわてもの
|-
| 80-99
| <span class="explain" title="20/256 or 7.8125%">8%</span>
| 4 - わがまま
|-
| 100-119
| <span class="explain" title="20/256 or 7.8125%">8%</span>
| 5 - ちょーわがまま
|-
| 120-139
| <span class="explain" title="20/256 or 7.8125%">8%</span>
| 6 - おくびょう
|-
| 140-159
| <span class="explain" title="20/256 or 7.8125%">8%</span>
| 7 - ちょーおくびよう
|-
| 160-179
| <span class="explain" title="20/256 or 7.8125%">8%</span>
| 8 - おこりんぼ
|-
| 180-199
| <span class="explain" title="20/256 or 7.8125%">8%</span>
| 9 - ちょーおこりんぼ
|-
| 200-219
| <span class="explain" title="20/256 or 7.8125%">8%</span>
| 10 - りちぎ
|-
| 220-239
| <span class="explain" title="20/256 or 7.8125%">8%</span>
| 11 - ちょーりちぎ
|}

===Battle events===
====Move accuracy====
<!--167E9-->
''More research needed!''
(<0xD597>/8 + 245 - <0xD49B>/2)/256

Little is known about 0xD597, but preliminary research suggests that it's based on the speed of the attacking Denjuu. Accuracy modifiers seem to increase this value, but this appears to max out at a certain value (which seems to vary based on other variables), possibly to prevent overflow in the formula. Likewise, little is known about 0xD49B, but preliminary research suggests that it's based on the speed of the defending Denjuu. Evasion modifiers seem to increase this value (there may be a limit, but it isn't known yet). Despite the values being based off of the speed stat, speed modifiers don't affect this value.

If the move used doesn't target the opponent Denjuu (i.e. it affects itself, like a stat boosting move), then both of these values seem to be based on the Speed stat (likely with evasion modifiers applied, but this is not confirmed) of the ''opponent'' Denjuu.
====Critical hits====
<!--1707B-->
{| class="wikitable"
|-
! Random number range
! Probability
! Effect
|-
| 0-15
| <span class="explain" title="16/256">6.25%</span>
| Critical hit!
|-
| 16-255
| <span class="explain" title="240/256">93.75%</span>
| Regular hit
|}
====Damage calculation====
====Added effects of moves====
====Status effects====
====Personality flaws====
<!--154BE (0-3) / 13746 (4-5) / 16D0C (6-7) / 14B38 (8-9) -->
''More research needed!''

For some personalities, including 0 (のんびり), 1 (ちょーのんびり), 2 (あわてもの), 3 (ちょーあわてもの) (late to arrive),  6 (おくびょう), 7 (ちょーおくびよう) (prone to run away), 8 (おこりんぼ), and 9 (ちょーおこりんぼ) (attacking on its own):
{| class="wikitable"
|-
! Random number range
! Probability
! Effect
|-
| colspan="3" | Probability: ((FD*2+55) mod 256)/256
|- 
| colspan="3" | When FD = 1:
|-
| 0-56
| <span class="explain" title="57/256 or 22.265625%">22%</span>
| Act normal
|-
| 57-255
| <span class="explain" title="199/256 or 77.734375%">78%</span>
| Misbehave
|-
| colspan="3" | When FD = 100:
|-
| 0-254
| <span class="explain" title="255/256 or 99.609375%">99.6%</span>
| Act normal
|-
| 255
| <span class="explain" title="1/256 or .390625%">.4%</span>
| Misbehave
|}

For other personalities, including 4 (わがまま) and 5 (ちょーわがまま) (refusing to attack):
{| class="wikitable"
|-
! Random number range
! Probability
! Effect
|-
| colspan="3" | Probability: ((FD+155) mod 256)/256
|- 
| colspan="3" | When FD = 1:
|-
| 0-155
| <span class="explain" title="156/256 or 60.9375%">61%</span>
| Act normal
|-
| 156-255
| <span class="explain" title="100/256 or 39.0625%">39%</span>
| Misbehave
|-
| colspan="3" | When FD = 100:
|-
| 0-254
| <span class="explain" title="255/256 or 99.609375%">99.6%</span>
| Act normal
|-
| 255
| <span class="explain" title="1/256 or .390625%">.4%</span>
| Misbehave
|}

Notes:
* In both cases, due to an oversight, when FD = 100, there is a 1/256 chance that the Denjuu will misbehave, which occurs when the random number comes up as 255. This is similar to the 99.6% accuracy glitch in early Pokémon games.
* There is a [http://s15.zetaboards.com/Tulunk_Village/topic/6997763/1/ glitch] that makes it possible to make the Denjuu's FD exceed 100. Since the formulas are not meant for the FD to exceed 100, an integer overflow glitch occurs, making the probability of the Denjuu acting normal very low.

====AI====
=====Target selection=====
=====Move selection=====
====Escaping====
<!--70A99-->
''More research needed!''

When 0xD504 <= 0xD546 (note: these addresses' behavior aren't completely known, although both seem to always be 0 before battling):

{| class="wikitable"
|-
! Random number range
! Probability
! Effect
|-
| 0-199
| <span class="explain" title="200/256 or 78.125%">78%</span>
| Unable to escape
|-
| 200-255
| <span class="explain" title="56/256 or 21.875%">22%</span>
| Able to escape
|}

When 0xD504 > 0xD546 (note: these addresses' behavior aren't completely known, although both seem to always be 0 before battling):

{| class="wikitable"
|-
! Random number range
! Probability
! Effect
|-
| 0-84
| <span class="explain" title="85/256 or 33.203125%">33%</span>
| Unable to escape
|-
| 85-255
| <span class="explain" title="171/256 or 66.796875%">67%</span>
| Able to escape
|}

Very little is known about 0xD504, although it appears to be based on the Speed of the user's leading Denjuu. This appears to be affected by speed modifiers as well. Likewise, very little is known about 0xD546, although it appears to be based on the Speed of the opponent's leading Denjuu, and may also be affected by speed modifiers (although this is not confirmed).

Note: In some battles, particularly where a boss or other NPC is fought, the RNG is not invoked, and the player will never be able to escape.

===Denjuu giving out number===
<!-- 741C9 -->
If player does not yet have any other befriended Denjuu of the same species:
{| class="wikitable"
|-
! Random number range
! Probability
! Effect
|-
| 0-152
| <span class="explain" title="153/256 or 59.765625%">60%</span>
| Denjuu offers number
|-
| 153-255
| <span class="explain" title="103/256 or 40.234375%">40%</span>
| Denjuu does not offer number
|}

If player has at least one other befriended Denjuu of the same species:
{| class="wikitable"
|-
! Random number range
! Probability
! Effect
|-
| 0-15
| <span class="explain" title="16/256">6.25%</span>
| Denjuu offers number
|-
| 16-255
| <span class="explain" title="240/256">93.75%</span>
| Denjuu does not offer number
|}