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| -rw-r--r-- | Shiny-Creation-With-a-Flag.md | 50 |
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diff --git a/Shiny-Creation-With-a-Flag.md b/Shiny-Creation-With-a-Flag.md new file mode 100644 index 0000000..d2b3519 --- /dev/null +++ b/Shiny-Creation-With-a-Flag.md @@ -0,0 +1,50 @@ +## Create Shiny Pokemon with a Flag + +### 1. Create a flag + +Define a flag named `FLAG_SHINY_CREATION` in `include/constants/flags.h` + +### 2. Make it do something + +1. Open [pokemon.c](../blob/master/src/pokemon.c) and find `CreateBoxMon` +2. Make the following changes: + +```diff +- SetBoxMonData(boxMon, MON_DATA_PERSONALITY, &personality); + + //Determine original trainer ID + if (otIdType == OT_ID_RANDOM_NO_SHINY) //Pokemon cannot be shiny + { + u32 shinyValue; + do + { + value = Random32(); + shinyValue = HIHALF(value) ^ LOHALF(value) ^ HIHALF(personality) ^ LOHALF(personality); + } while (shinyValue < SHINY_ODDS); + } + else if (otIdType == OT_ID_PRESET) //Pokemon has a preset OT ID + { + value = fixedOtId; + } + else //Player is the OT + { + value = gSaveBlock2Ptr->playerTrainerId[0] + | (gSaveBlock2Ptr->playerTrainerId[1] << 8) + | (gSaveBlock2Ptr->playerTrainerId[2] << 16) + | (gSaveBlock2Ptr->playerTrainerId[3] << 24); + ++ if (FlagGet(FLAG_SHINY_CREATION)) ++ { ++ u8 nature = personality % NUM_NATURES; // keep current nature ++ do { ++ personality = Random32(); ++ personality = ((((Random() % SHINY_ODDS) ^ (HIHALF(value) ^ LOHALF(value))) ^ LOHALF(personality)) << 16) | LOHALF(personality); ++ } while (nature != GetNatureFromPersonality(personality)); ++ } + } + + ++ SetBoxMonData(boxMon, MON_DATA_PERSONALITY, &personality); +``` + +`FLAG_SHINY_CREATION` is NOT cleared internally because you might want to make multiple shiny pokemon. Feel free to add `FlagClear(FLAG_SHINY_CREATION)` at the end of `CreateBoxMon` to make sure only one shiny mon is created. |