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/**
* @file weatherChangeManager.c
* @ingroup Managers
*
* @brief Weather change on top of Mount Crenel.
*/
#include "manager/weatherChangeManager.h"
#include "area.h"
#include "asm.h"
#include "common.h"
#include "main.h"
#include "room.h"
#include "screen.h"
#include "sound.h"
#include "game.h"
#include "manager/staticBackgroundManager.h"
#include "player.h"
#include "fade.h"
void WeatherChangeManager_OnEnterRoom(WeatherChangeManager*);
void sub_08059608(WeatherChangeManager*);
void sub_08059690(WeatherChangeManager*);
void sub_080596E0(WeatherChangeManager*);
u32 sub_08059844(void);
u32 sub_0805986C(void);
void sub_08059894(const u16*, const u16*, u32);
u32 MixColors(u32, u32, u32);
void MixPalettes(const u16*, const u16*, u16*, u8);
const u8 gUnk_08108390[6] = {
0x0F, 0x1E, 0x2D, 0x3C, 0x01, 0x01,
};
extern const u16 gPalette_549[];
void WeatherChangeManager_Main(WeatherChangeManager* this) {
if (super->action == 0) {
super->action = 1;
this->unk_21 = 0;
this->unk_23 = 0;
if (sub_0805986C()) {
this->unk_20 = 1;
this->unk_22 = 2;
gMapTop.bgSettings = 0;
} else {
this->unk_20 = 0x1F;
this->unk_22 = 5;
}
gRoomVars.graphicsGroups[0] = 0xFF;
RegisterTransitionHandler(this, WeatherChangeManager_OnEnterRoom, NULL);
}
sub_08059608(this);
sub_08059690(this);
sub_080596E0(this);
}
void WeatherChangeManager_OnEnterRoom(WeatherChangeManager* this) {
gRoomVars.graphicsGroups[0] = 0xFF;
sub_08059690(this);
sub_080596E0(this);
LoadStaticBackground(0);
}
void sub_08059608(WeatherChangeManager* this) {
if (this->unk_23) {
if (!--this->unk_23) {
gArea.bgm = gArea.queued_bgm;
SoundReq(gArea.bgm);
}
return;
}
if (sub_0805986C()) {
if (gArea.queued_bgm != BGM_CRENEL_STORM) {
gArea.queued_bgm = BGM_CRENEL_STORM;
this->unk_23 = 0x78;
SoundReq(SONG_FADE_OUT_BGM);
}
return;
}
if (gArea.queued_bgm != BGM_MT_CRENEL) {
gArea.queued_bgm = BGM_MT_CRENEL;
this->unk_23 = 0x78;
SoundReq(SONG_FADE_OUT_BGM);
}
}
void sub_08059690(WeatherChangeManager* this) {
if (sub_08059844()) {
if (this->unk_20 == 0)
return;
sub_08059894(gPalette_549, gPalette_549 + 0xD0, this->unk_20);
this->unk_20--;
} else {
if (this->unk_20 > 0x1F)
return;
sub_08059894(gPalette_549, gPalette_549 + 0xD0, this->unk_20);
this->unk_20++;
}
}
void sub_080596E0(WeatherChangeManager* this) {
if ((gRoomTransition.frameCount & 7) == 0) {
gScreen.bg1.xOffset += 8;
gScreen.bg1.xOffset &= 0x1F;
}
if (sub_0805986C()) {
if (this->unk_21 == 0 && this->unk_22 != 2) {
this->unk_21 = 1;
this->unk_22 = 3;
super->timer = gUnk_08108390[3];
gMapTop.bgSettings = 0;
}
} else {
if (this->unk_21 == 0 && this->unk_22 != 5) {
this->unk_21 = 2;
super->timer = gUnk_08108390[this->unk_22];
}
}
switch (this->unk_21) {
case 1:
if (--super->timer == 0) {
super->timer = gUnk_08108390[--this->unk_22];
if (this->unk_22 == 2) {
this->unk_21 = 0;
}
}
break;
case 2:
if (--super->timer == 0) {
super->timer = gUnk_08108390[++this->unk_22];
if (this->unk_22 == 5) {
this->unk_21 = 0;
}
}
break;
}
if (gRoomVars.graphicsGroups[0] != this->unk_22) {
gRoomVars.graphicsGroups[0] = this->unk_22;
switch (this->unk_22) {
case 0 ... 3:
LoadGfxGroup(this->unk_22 + 0x2B);
break;
case 4:
MemClear(gBG3Buffer, 0x800);
LoadResourceAsync(gBG3Buffer, BG_SCREEN_ADDR(29), BG_SCREEN_SIZE);
break;
case 5:
gMapTop.bgSettings = &gScreen.bg1;
gScreen.lcd.displayControl |= 0x200;
break;
}
}
}
u32 sub_08059844(void) {
return gPlayerEntity.base.x.HALF.HI - gRoomControls.origin_x > gRoomControls.width >> 1;
}
u32 sub_0805986C(void) {
return gPlayerEntity.base.x.HALF.HI - gRoomControls.origin_x > 0x200;
}
void sub_08059894(const u16* palette1, const u16* palette2, u32 factor) {
const u16* tmp1;
const u16* tmp2;
u16* tmp3;
u32 tmp4;
u32 i;
tmp1 = palette1;
tmp2 = palette2;
tmp3 = gPaletteBuffer + 2 * 16;
for (i = 0; i < 13; i++) {
MixPalettes(tmp1, tmp2, tmp3, factor);
tmp1 += 0x10;
tmp2 += 0x10;
tmp3 += 0x10;
}
MemCopy(gPaletteBuffer + 3 * 16, gPaletteBuffer + 21 * 16, 16 * 2);
// Use palettes 2 to 14 and 21.
gUsedPalettes |= 1 << 2 | 1 << 3 | 1 << 4 | 1 << 5 | 1 << 6 | 1 << 7 | 1 << 8 | 1 << 9 | 1 << 10 | 1 << 11 |
1 << 12 | 1 << 13 | 1 << 14 | 1 << 21;
}
u32 MixColors(u32 color1, u32 color2, u32 factor) {
u32 tmp1, tmp2, tmp3;
u32 tmp4, tmp5, tmp6;
tmp1 = (color1 & 0x1F) << 8;
tmp1 = (tmp1 * factor) >> 5;
tmp4 = (color2 & 0x1F) << 8;
tmp4 = (tmp4 * (0x20 - factor)) >> 5;
tmp1 = (tmp1 + tmp4) >> 8;
tmp2 = (color1 & 0x3E0) << 3;
tmp2 = (tmp2 * factor) >> 5;
tmp5 = (color2 & 0x3E0) << 3;
tmp5 = (tmp5 * (0x20 - factor)) >> 5;
tmp2 = (tmp2 + tmp5) >> 8;
tmp3 = (color1 & 0x7C00) >> 2;
tmp3 = (tmp3 * factor) >> 5;
tmp6 = (color2 & 0x7C00) >> 2;
tmp6 = (tmp6 * (0x20 - factor)) >> 5;
tmp3 = (tmp3 + tmp6) >> 8;
return tmp1 | (tmp2 << 5) | (tmp3 << 10);
}
void MixPalettes(const u16* srcPalette1, const u16* srcPalette2, u16* destPalette, u8 factor) {
u32 i;
for (i = 0; i < 0x10; i++) {
*destPalette++ = MixColors(*srcPalette1++, *srcPalette2++, factor);
}
}
void sub_08059994(void) {
if (sub_0805986C()) {
LoadPaletteGroup(0x5B);
gArea.queued_bgm = BGM_CRENEL_STORM;
}
}
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