atiran/sovereignx
3
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Document trainer hill prize selection

Browse source
This commit is contained in:
GriffinR 2022-04-01 01:21:00 -04:00
parent 328b925a08
commit 00e0eefe09
1 changed files with 46 additions and 14 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

60
src/trainer_hill.c
View file

@ -996,10 +996,14 @@ static void TrainerHillSetMode(void)
gSaveBlock1Ptr->trainerHill.bestTime = gSaveBlock1Ptr->trainerHillTimes[gSpecialVar_0x8005];
}
static u8 GetPrizeListId(bool8 maxTrainers)
// Determines which prize list to use from the set of prize lists.
static u8 GetPrizeListId(bool8 allowTMs)
{
u8 prizeListId, i, modBy;
// The initial selection depends on the trainer numbers for the completed challenge.
// These don't change with the available challenge modes, so Normal/Unique will always
// have a prizeListId of 8, and Variety/Expert will have a prizeListId of 24.
prizeListId = 0;
for (i = 0; i < NUM_TRAINER_HILL_FLOORS; i++)
{
@ -1007,8 +1011,10 @@ static u8 GetPrizeListId(bool8 maxTrainers)
prizeListId ^= sHillData->floors[i].trainerNum2 & 0x1F;
}
// Not possible to win TMs with fewer than 8 trainers
if (maxTrainers)
// In practice, the conditional below is always true.
// The 2nd half of the lists in both sets of lists all have a TM as the "grand prize", while the 1st half do not,
// so taking the mod of the (total / 2) ensures that a prize list without a TM will be used.
if (allowTMs)
modBy = NUM_TRAINER_HILL_PRIZE_LISTS;
else
modBy = NUM_TRAINER_HILL_PRIZE_LISTS / 2;
@ -1021,38 +1027,64 @@ static u16 GetPrizeItemId(void)
{
u8 i;
const u16 *prizeList;
s32 var = 0, prizeListSetId, minutes, id;
s32 trainerNumSum = 0, prizeListSetId, minutes, id;
// First determine which set of prize lists to use. The sets of lists only differ in
// what TMs they can offer as the "grand prize" for a time under 12 minutes.
// Which set of lists gets used is based on the sum of all the trainer numbers for that
// challenge. These don't change with the available challenge modes, so Normal will always
// have a prizeListSetId of 0, and Unique/Variety/Expert will have a prizeListSetId of 1.
for (i = 0; i < NUM_TRAINER_HILL_FLOORS; i++)
{
var += sHillData->floors[i].trainerNum1;
var += sHillData->floors[i].trainerNum2;
trainerNumSum += sHillData->floors[i].trainerNum1;
trainerNumSum += sHillData->floors[i].trainerNum2;
}
prizeListSetId = trainerNumSum / 256;
prizeListSetId %= (int)ARRAY_COUNT(sPrizeListSets);
prizeListSetId = var / 256;
prizeListSetId %= 2;
// Now get which prize list to use from the set. See GetPrizeListId for details.
// The below conditional will always be true, because a Trainer Hill challenge can't be entered
// until the player has entered the Hall of Fame (FLAG_SYS_GAME_CLEAR is set) and because all
// of the available challenge modes have the full 8 trainers (NUM_TRAINER_HILL_TRAINERS).
if (FlagGet(FLAG_SYS_GAME_CLEAR) && sHillData->challenge.numTrainers == NUM_TRAINER_HILL_TRAINERS)
i = GetPrizeListId(TRUE);
else
i = GetPrizeListId(FALSE);
// 1 is added to Expert mode's prize list selection because otherwise it has the same prizes as Variety
if (gSaveBlock1Ptr->trainerHill.mode == HILL_MODE_EXPERT)
i = (i + 1) % NUM_TRAINER_HILL_PRIZE_LISTS;
// After the above (non-random) calculations, the following are the possible prize list selections:
// sPrizeListSets[0][8] (Normal)
// sPrizeListSets[1][4] (Variety)
// sPrizeListSets[1][8] (Unique)
// sPrizeListSets[1][5] (Expert)
prizeList = sPrizeListSets[prizeListSetId][i];
// Which prize is given from the list depends on the time scored.
// The prize for any time after 12 minutes is the same in every list.
// The prizes for a time under 12 minutes are:
// - ITEM_TM11_SUNNY_DAY (Normal)
// - ITEM_ELIXIR (Variety)
// - ITEM_TM19_GIGA_DRAIN (Unique)
// - ITEM_TM31_BRICK_BREAK (Expert)
// As an additional note, if players were allowed to enter a Trainer Hill challenge before
// entering the Hall of Fame, there would be 1 additional prize possibility (ITEM_MAX_ETHER)
// as Normal / Unique modes would use sPrizeListSets[0][3] / sPrizeListSets[1][3] respectively.
minutes = (signed)(gSaveBlock1Ptr->trainerHill.timer) / (60 * 60);
if (minutes < 12)
id = 0;
id = 0; // Depends on list
else if (minutes < 13)
id = 1;
id = 1; // ITEM_ETHER
else if (minutes < 14)
id = 2;
id = 2; // ITEM_MAX_POTION
else if (minutes < 16)
id = 3;
id = 3; // ITEM_REVIVE
else if (minutes < 18)
id = 4;
id = 4; // ITEM_FLUFFY_TAIL
else
id = 5;
id = 5; // ITEM_GREAT_BALL
return prizeList[id];
}