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Document thunderstorm

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This commit is contained in:
GriffinR
2021-04-04 00:23:06 -04:00
parent 1494a83035
commit b926fa6b07
3 changed files with 111 additions and 78 deletions
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6
src/field_weather.c
View File

@@ -710,7 +710,7 @@ static bool8 LightenSpritePaletteInFog(u8 paletteIndex)
return FALSE;
}
void sub_80ABC48(s8 gammaIndex)
void ApplyWeatherGammaShiftIfIdle(s8 gammaIndex)
{
if (gWeatherPtr->palProcessingState == WEATHER_PAL_STATE_IDLE)
{
@@ -728,7 +728,7 @@ void sub_80ABC7C(u8 gammaIndex, u8 gammaTargetIndex, u8 gammaStepDelay)
gWeatherPtr->gammaTargetIndex = gammaTargetIndex;
gWeatherPtr->gammaStepFrameCounter = 0;
gWeatherPtr->gammaStepDelay = gammaStepDelay;
sub_80ABC48(gammaIndex);
ApplyWeatherGammaShiftIfIdle(gammaIndex);
}
}
@@ -887,7 +887,7 @@ bool8 LoadDroughtWeatherPalettes(void)
static void SetDroughtGamma(s8 gammaIndex)
{
sub_80ABC48(-gammaIndex - 1);
ApplyWeatherGammaShiftIfIdle(-gammaIndex - 1);
}
void DroughtStateInit(void)

140
src/field_weather_effect.c
View File

@@ -677,7 +677,7 @@ static bool8 CreateRainSprite(void)
if (spriteId != MAX_SPRITES)
{
gSprites[spriteId].tActive = 0;
gSprites[spriteId].tActive = FALSE;
gSprites[spriteId].tRandom = spriteIndex * 145;
while (gSprites[spriteId].tRandom >= 600)
gSprites[spriteId].tRandom -= 600;
@@ -722,12 +722,12 @@ static bool8 UpdateVisibleRainSprites(void)
gWeatherPtr->rainSpriteVisibleCounter = 0;
if (gWeatherPtr->curRainSpriteIndex < gWeatherPtr->targetRainSpriteCount)
{
gWeatherPtr->sprites.s1.rainSprites[gWeatherPtr->curRainSpriteIndex++]->tActive = 1;
gWeatherPtr->sprites.s1.rainSprites[gWeatherPtr->curRainSpriteIndex++]->tActive = TRUE;
}
else
{
gWeatherPtr->curRainSpriteIndex--;
gWeatherPtr->sprites.s1.rainSprites[gWeatherPtr->curRainSpriteIndex]->tActive = 0;
gWeatherPtr->sprites.s1.rainSprites[gWeatherPtr->curRainSpriteIndex]->tActive = FALSE;
gWeatherPtr->sprites.s1.rainSprites[gWeatherPtr->curRainSpriteIndex]->invisible = TRUE;
}
}
@@ -1011,9 +1011,32 @@ static void UpdateSnowflakeSprite(struct Sprite *sprite)
// WEATHER_RAIN_THUNDERSTORM
//------------------------------------------------------------------------------
enum {
// This block of states is run only once
// when first setting up the thunderstorm
TSTORM_STATE_LOAD_RAIN,
TSTORM_STATE_CREATE_RAIN,
TSTORM_STATE_INIT_RAIN,
TSTORM_STATE_WAIT_CHANGE,
// The thunderstorm loops through these states,
// not necessarily in order.
TSTORM_STATE_LOOP_START,
TSTORM_STATE_LOOP_WAIT,
TSTORM_STATE_INIT_THUNDER_SHORT_1,
TSTORM_STATE_INIT_THUNDER_SHORT_2,
TSTORM_STATE_TRY_THUNDER_SHORT,
TSTORM_STATE_TRY_NEW_THUNDER,
TSTORM_STATE_WAIT_THUNDER_SHORT,
TSTORM_STATE_INIT_THUNDER_LONG,
TSTORM_STATE_WAIT_THUNDER_LONG,
TSTORM_STATE_FADE_THUNDER_LONG,
TSTORM_STATE_END_THUNDER_LONG,
};
void Thunderstorm_InitVars(void)
{
gWeatherPtr->initStep = 0;
gWeatherPtr->initStep = TSTORM_STATE_LOAD_RAIN;
gWeatherPtr->weatherGfxLoaded = FALSE;
gWeatherPtr->rainSpriteVisibleCounter = 0;
gWeatherPtr->rainSpriteVisibleDelay = 4;
@@ -1022,7 +1045,7 @@ void Thunderstorm_InitVars(void)
gWeatherPtr->gammaTargetIndex = 3;
gWeatherPtr->gammaStepDelay = 20;
gWeatherPtr->weatherGfxLoaded = FALSE; // duplicate assignment
gWeatherPtr->thunderTriggered = 0;
gWeatherPtr->thunderTriggered = FALSE;
SetRainStrengthFromSoundEffect(SE_THUNDERSTORM);
}
@@ -1042,7 +1065,7 @@ static void SetThunderCounter(u16);
void Downpour_InitVars(void)
{
gWeatherPtr->initStep = 0;
gWeatherPtr->initStep = TSTORM_STATE_LOAD_RAIN;
gWeatherPtr->weatherGfxLoaded = FALSE;
gWeatherPtr->rainSpriteVisibleCounter = 0;
gWeatherPtr->rainSpriteVisibleDelay = 4;
@@ -1066,100 +1089,105 @@ void Thunderstorm_Main(void)
UpdateThunderSound();
switch (gWeatherPtr->initStep)
{
case 0:
case TSTORM_STATE_LOAD_RAIN:
LoadRainSpriteSheet();
gWeatherPtr->initStep++;
break;
case 1:
case TSTORM_STATE_CREATE_RAIN:
if (!CreateRainSprite())
gWeatherPtr->initStep++;
break;
case 2:
case TSTORM_STATE_INIT_RAIN:
if (!UpdateVisibleRainSprites())
{
gWeatherPtr->weatherGfxLoaded = TRUE;
gWeatherPtr->initStep++;
}
break;
case 3:
case TSTORM_STATE_WAIT_CHANGE:
if (gWeatherPtr->palProcessingState != WEATHER_PAL_STATE_CHANGING_WEATHER)
gWeatherPtr->initStep = 6;
gWeatherPtr->initStep = TSTORM_STATE_INIT_THUNDER_SHORT_1;
break;
case 4:
gWeatherPtr->unknown_6EA = 1;
gWeatherPtr->unknown_6E6 = (Random() % 360) + 360;
case TSTORM_STATE_LOOP_START:
gWeatherPtr->thunderAllowEnd = TRUE;
gWeatherPtr->thunderDelay = (Random() % 360) + 360;
gWeatherPtr->initStep++;
// fall through
case 5:
if (--gWeatherPtr->unknown_6E6 == 0)
case TSTORM_STATE_LOOP_WAIT:
// Wait between 360-720 frames before trying thunder again
if (--gWeatherPtr->thunderDelay == 0)
gWeatherPtr->initStep++;
break;
case 6:
gWeatherPtr->unknown_6EA = 1;
gWeatherPtr->unknown_6EB = Random() % 2;
case TSTORM_STATE_INIT_THUNDER_SHORT_1:
gWeatherPtr->thunderAllowEnd = TRUE;
gWeatherPtr->thunderSkipShort = Random() % 2;
gWeatherPtr->initStep++;
break;
case 7:
gWeatherPtr->unknown_6EC = (Random() & 1) + 1;
case TSTORM_STATE_INIT_THUNDER_SHORT_2:
gWeatherPtr->thunderShortRetries = (Random() & 1) + 1;
gWeatherPtr->initStep++;
// fall through
case 8:
sub_80ABC48(19);
if (gWeatherPtr->unknown_6EB == 0 && gWeatherPtr->unknown_6EC == 1)
SetThunderCounter(20);
case TSTORM_STATE_TRY_THUNDER_SHORT:
ApplyWeatherGammaShiftIfIdle(19);
if (!gWeatherPtr->thunderSkipShort && gWeatherPtr->thunderShortRetries == 1)
SetThunderCounter(20); // Do short thunder
gWeatherPtr->unknown_6E6 = (Random() % 3) + 6;
gWeatherPtr->thunderDelay = (Random() % 3) + 6;
gWeatherPtr->initStep++;
break;
case 9:
if (--gWeatherPtr->unknown_6E6 == 0)
case TSTORM_STATE_TRY_NEW_THUNDER:
if (--gWeatherPtr->thunderDelay == 0)
{
sub_80ABC48(3);
gWeatherPtr->unknown_6EA = 1;
if (--gWeatherPtr->unknown_6EC != 0)
ApplyWeatherGammaShiftIfIdle(3);
gWeatherPtr->thunderAllowEnd = TRUE;
if (--gWeatherPtr->thunderShortRetries != 0)
{
gWeatherPtr->unknown_6E6 = (Random() % 16) + 60;
gWeatherPtr->initStep = 10;
// Try a short thunder again
gWeatherPtr->thunderDelay = (Random() % 16) + 60;
gWeatherPtr->initStep = TSTORM_STATE_WAIT_THUNDER_SHORT;
}
else if (gWeatherPtr->unknown_6EB == 0)
else if (!gWeatherPtr->thunderSkipShort)
{
gWeatherPtr->initStep = 4;
// No more thunder, restart loop
gWeatherPtr->initStep = TSTORM_STATE_LOOP_START;
}
else
{
gWeatherPtr->initStep = 11;
// Set up long thunder
gWeatherPtr->initStep = TSTORM_STATE_INIT_THUNDER_LONG;
}
}
break;
case 10:
if (--gWeatherPtr->unknown_6E6 == 0)
gWeatherPtr->initStep = 8;
case TSTORM_STATE_WAIT_THUNDER_SHORT:
if (--gWeatherPtr->thunderDelay == 0)
gWeatherPtr->initStep = TSTORM_STATE_TRY_THUNDER_SHORT;
break;
case 11:
gWeatherPtr->unknown_6E6 = (Random() % 16) + 60;
case TSTORM_STATE_INIT_THUNDER_LONG:
gWeatherPtr->thunderDelay = (Random() % 16) + 60;
gWeatherPtr->initStep++;
break;
case 12:
if (--gWeatherPtr->unknown_6E6 == 0)
case TSTORM_STATE_WAIT_THUNDER_LONG:
if (--gWeatherPtr->thunderDelay == 0)
{
// Do long thunder
SetThunderCounter(100);
sub_80ABC48(19);
gWeatherPtr->unknown_6E6 = (Random() & 0xF) + 30;
ApplyWeatherGammaShiftIfIdle(19);
gWeatherPtr->thunderDelay = (Random() & 0xF) + 30;
gWeatherPtr->initStep++;
}
break;
case 13:
if (--gWeatherPtr->unknown_6E6 == 0)
case TSTORM_STATE_FADE_THUNDER_LONG:
if (--gWeatherPtr->thunderDelay == 0)
{
sub_80ABC7C(19, 3, 5);
gWeatherPtr->initStep++;
}
break;
case 14:
case TSTORM_STATE_END_THUNDER_LONG:
if (gWeatherPtr->palProcessingState == WEATHER_PAL_STATE_IDLE)
{
gWeatherPtr->unknown_6EA = 1;
gWeatherPtr->initStep = 4;
gWeatherPtr->thunderAllowEnd = TRUE;
gWeatherPtr->initStep = TSTORM_STATE_LOOP_START;
}
break;
}
@@ -1170,12 +1198,12 @@ bool8 Thunderstorm_Finish(void)
switch (gWeatherPtr->finishStep)
{
case 0:
gWeatherPtr->unknown_6EA = 0;
gWeatherPtr->thunderAllowEnd = FALSE;
gWeatherPtr->finishStep++;
// fall through
case 1:
Thunderstorm_Main();
if (gWeatherPtr->unknown_6EA)
if (gWeatherPtr->thunderAllowEnd)
{
if (gWeatherPtr->nextWeather == WEATHER_RAIN
|| gWeatherPtr->nextWeather == WEATHER_RAIN_THUNDERSTORM
@@ -1203,16 +1231,16 @@ bool8 Thunderstorm_Finish(void)
static void SetThunderCounter(u16 max)
{
if (gWeatherPtr->thunderTriggered == 0)
if (!gWeatherPtr->thunderTriggered)
{
gWeatherPtr->thunderCounter = Random() % max;
gWeatherPtr->thunderTriggered = 1;
gWeatherPtr->thunderTriggered = TRUE;
}
}
static void UpdateThunderSound(void)
{
if (gWeatherPtr->thunderTriggered == 1)
if (gWeatherPtr->thunderTriggered == TRUE)
{
if (gWeatherPtr->thunderCounter == 0)
{
@@ -1224,7 +1252,7 @@ static void UpdateThunderSound(void)
else
PlaySE(SE_THUNDER2);
gWeatherPtr->thunderTriggered = 0;
gWeatherPtr->thunderTriggered = FALSE;
}
else
{