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Document the nextTurnOrder calculations

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This commit is contained in:
Phlosioneer 2019-04-02 20:46:18 -04:00
parent 99e8e8e53f
commit f79a2fda68
1 changed files with 49 additions and 27 deletions
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76
src/contest.c
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@ -116,7 +116,7 @@ static void sub_80DC5E8(void);
static void sub_80DC7EC(void); static void sub_80DC7EC(void);
static void sub_80DCD48(void); static void sub_80DCD48(void);
static void sub_80DD04C(void); static void sub_80DD04C(void);
static void sub_80DD590(void); static void ApplyNextTurnOrder(void);
static void sub_80DDB0C(void); static void sub_80DDB0C(void);
static void sub_80DDBE8(void); static void sub_80DDBE8(void);
static void sub_80DE224(void); static void sub_80DE224(void);
@ -975,7 +975,7 @@ static void InitContestResources(void)
eContestantStatus[i].nextTurnOrder = 0xFF; eContestantStatus[i].nextTurnOrder = 0xFF;
eContest.unk19218[i] = gContestantTurnOrder[i]; eContest.unk19218[i] = gContestantTurnOrder[i];
} }
sub_80DD590(); ApplyNextTurnOrder();
memset(gContestResources->field_1c, 0, sizeof(*gContestResources->field_1c) * CONTESTANT_COUNT); memset(gContestResources->field_1c, 0, sizeof(*gContestResources->field_1c) * CONTESTANT_COUNT);
} }
@ -3275,7 +3275,7 @@ static void sub_80DB944(void)
} }
} }
SortContestants(TRUE); SortContestants(TRUE);
sub_80DD590(); ApplyNextTurnOrder();
} }
static void sub_80DBA18(void) static void sub_80DBA18(void)
@ -4369,59 +4369,81 @@ void MakeContestantNervous(u8 p)
eContestantStatus[p].currMove = MOVE_NONE; eContestantStatus[p].currMove = MOVE_NONE;
} }
static void sub_80DD590(void) // This function calculates the new turn order for the next round. The
// algorithm first checks for explicit turn assignments in the
// ContestantStatus::nextTurnOrder field of each contestant. The remaining
// turns are assigned such that the turn order will reverse.
//
// For example, if no pokemon have a defined nextTurnOrder, then the 4th
// will become 1st, the 3rd will become 2nd, etc.
//
// Note: This function assumes that multiple pokemon cannot have the same
// nextTurnOrder value.
static void ApplyNextTurnOrder(void)
{ {
u8 r12 = 0; u8 nextContestant = 0;
s32 i; s32 i;
s32 j; s32 j;
u8 sp0[4]; u8 newTurnOrder[CONTESTANT_COUNT];
u8 sp4[4]; bool8 isContestantOrdered[CONTESTANT_COUNT];
for (i = 0; i < 4; i++) // Copy the current turn order.
for (i = 0; i < CONTESTANT_COUNT; i++)
{ {
sp0[i] = gContestantTurnOrder[i]; newTurnOrder[i] = gContestantTurnOrder[i];
sp4[i] = 0; isContestantOrdered[i] = FALSE;
} }
for (i = 0; i < 4; i++) // For each turn, assign a contestant to that turn.
for (i = 0; i < CONTESTANT_COUNT; i++)
{ {
for (j = 0; j < 4; j++) // Look for explicit turn assignments.
for (j = 0; j < CONTESTANT_COUNT; j++)
{ {
if (eContestantStatus[j].nextTurnOrder == i) if (eContestantStatus[j].nextTurnOrder == i)
{ {
sp0[j] = i; newTurnOrder[j] = i;
sp4[j] = 1; isContestantOrdered[j] = TRUE;
break; break;
} }
} }
if (j == 4)
if (j == CONTESTANT_COUNT)
{ {
for (j = 0; j < 4; j++) // No contestant was assigned to this turn. Look for the unassigned contestant
// with the highest turn order.
//
// First, look for the first unassigned contestant.
for (j = 0; j < CONTESTANT_COUNT; j++)
{ {
if (sp4[j] == 0 && eContestantStatus[j].nextTurnOrder == 0xFF) if (!isContestantOrdered[j] && eContestantStatus[j].nextTurnOrder == 0xFF)
{ {
r12 = j; nextContestant = j;
j++; j++;
break; break;
} }
} }
for (; j < 4; j++)
// Then, look for a better candidate, with a higher turn order.
for (; j < CONTESTANT_COUNT; j++)
{ {
if (sp4[j] == 0 && eContestantStatus[j].nextTurnOrder == 0xFF if (!isContestantOrdered[j] && eContestantStatus[j].nextTurnOrder == 0xFF
&& gContestantTurnOrder[r12] > gContestantTurnOrder[j]) && gContestantTurnOrder[nextContestant] > gContestantTurnOrder[j])
r12 = j; nextContestant = j;
} }
sp0[r12] = i;
sp4[r12] = 1; // Assign the contestant to this turn.
newTurnOrder[nextContestant] = i;
isContestantOrdered[nextContestant] = TRUE;
} }
} }
for (i = 0; i < 4; i++) for (i = 0; i < CONTESTANT_COUNT; i++)
{ {
eContestResources8.turnOrder[i] = sp0[i]; eContestResources8.turnOrder[i] = newTurnOrder[i];
eContestantStatus[i].nextTurnOrder = 0xFF; eContestantStatus[i].nextTurnOrder = 0xFF;
eContestantStatus[i].turnOrderMod = 0; eContestantStatus[i].turnOrderMod = 0;
gContestantTurnOrder[i] = sp0[i]; gContestantTurnOrder[i] = newTurnOrder[i];
} }
} }