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tmc/src/intro.c

367 lines
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#include "global.h"
#include "menu.h"
#include "main.h"
#include "entity.h"
#include "functions.h"
#include "readKeyInput.h"
#include "screen.h"
#include "structures.h"
typedef struct {
u8 filler0[0x4];
u8 gameLanguage;
u8 state;
u8 subState;
u8 filler7[0x1];
u16 timer;
u8 fillerA[0x6];
u8 lightRaysPaletteGroup;
u8 lightRaysAlphaBlendIndex;
u8 counter;
u8 filler13[0x19];
int swordBgScaleRatio;
} IntroState;
// TODO: This occupies the same memory region as gMenu
extern IntroState gIntroState;
enum {
ADVANCE_NONE,
ADVANCE_TIMER_EXPIRED,
ADVANCE_KEY_PRESSED,
};
static void HandleNintendoCapcomLogos(void);
static void HandleTitlescreen(void);
static void UpdateSwordBgAffineData(void);
static void ExitTitlescreen(void);
static void HandleJapaneseTitlescreenAnimationIntro(void);
static void HandleTitlescreenAnimationIntro(void);
static u32 GetAdvanceState(void);
static void UpdateLightRays(void);
static void UpdatePressStartIcon(void);
static void (*const sIntroSequenceHandlers[])(void) = {
HandleNintendoCapcomLogos,
HandleTitlescreen,
ExitTitlescreen,
};
static const u16 sLightRaysAlphaBlends[] = {
BLDALPHA_BLEND(9, 9),
BLDALPHA_BLEND(8, 10),
BLDALPHA_BLEND(7, 11),
BLDALPHA_BLEND(6, 12),
BLDALPHA_BLEND(5, 13),
BLDALPHA_BLEND(6, 12),
BLDALPHA_BLEND(7, 11),
BLDALPHA_BLEND(8, 10),
};
static u32 AdvanceIntroSequence(u32 transition)
{
gUnk_02032EC0.transitionType = transition;
gUnk_03001000.funcIndex = 2;
_DmaZero(&gIntroState, sizeof(gIntroState));
DoFade(7, 8);
}
void HandleIntroScreen(void)
{
sub_080AD90C();
switch (gUnk_03001000.funcIndex) {
case 0:
sub_08056418();
_DmaZero(&gUnk_02032EC0, 0x3b4);
AdvanceIntroSequence(0);
break;
case 1:
sIntroSequenceHandlers[gUnk_02032EC0.transitionType]();
break;
case 2:
if (gFadeControl.active) {
return;
}
sub_0801DA90(1);
gUnk_03001000.funcIndex = 1;
break;
}
sub_080AD918();
}
static void HandleNintendoCapcomLogos(void)
{
u32 advance;
u32 paletteGroup;
advance = GetAdvanceState();
if (gIntroState.state == 0) {
sub_0801DA90(1);
gIntroState.state = 1;
gIntroState.timer = 120;
LoadGfxGroup(16);
LoadGfxGroup(1);
if (((struct_02000000 *)0x2000000)->gameLanguage == 0) {
paletteGroup = 1;
}
else {
paletteGroup = 2;
}
LoadPaletteGroup(paletteGroup);
gScreen.lcd.displayControl |= 0x400;
gScreen.bg.bg2yOffset = 1;
DoFade(6, 8);
advance = ADVANCE_NONE;
} else {
if (advance == ADVANCE_TIMER_EXPIRED) {
advance = ADVANCE_KEY_PRESSED;
}
}
if (advance == ADVANCE_KEY_PRESSED) {
gUnk_02000010.listenForKeyPresses = 1;
AdvanceIntroSequence(1);
}
}
extern u16 gUnk_03001010[5];
static void HandleTitlescreen(void)
{
int advance;
u32 paletteGroup;
gIntroState.counter++;
switch (gIntroState.state) {
case 0:
gIntroState.state = 1;
gIntroState.subState = 0;
gIntroState.timer = 30;
gIntroState.gameLanguage = 7;
EraseAllEntities();
sub_0801CFA8(0);
sub_080ADD30();
gUnk_02024490.unk0 = 1;
LoadGfxGroup(2);
if (((struct_02000000*)0x2000000)->gameLanguage == 0) {
paletteGroup = 3;
}
else {
paletteGroup = 4;
}
LoadPaletteGroup(paletteGroup);
if (((struct_02000000*)0x2000000)->gameLanguage == 0) {
gScreen.controls.layerFXControl = 0x844;
gScreen.controls.alphaBlend = BLDALPHA_BLEND(9, 9);
gScreen.bg.bg1xOffset = 0x1c09;
gScreen.affine.bg2Control = 0x1d02;
gScreen.affine.bg3Control = 0x1e03;
gScreen.lcd.displayControl |= 0x1e00;
gScreen.bg.bg2xOffset = 0xff60;
}
else {
gScreen.controls.layerFXControl = 0x241;
gScreen.controls.alphaBlend = BLDALPHA_BLEND(9, 9);
gScreen.bg.bg0Control = 0x1d02;
gScreen.bg.bg1xOffset = 0x1E03;
gScreen.affine.bg2Control = 0x7C89;
gScreen.lcd.displayControl |= 1;
gScreen.lcd.displayControl |= 0x1300;
gIntroState.swordBgScaleRatio = 0x10;
UpdateSwordBgAffineData();
}
sub_080A3210();
PlaySFX(3); //fanfare
DoFade(6, 8);
break;
case 1:
if (gFadeControl.active) {
return;
}
if (((struct_02000000*)0x2000000)->gameLanguage == 0) {
HandleJapaneseTitlescreenAnimationIntro();
}
else {
HandleTitlescreenAnimationIntro();
}
break;
case 2:
if (--gIntroState.timer == 0) {
gIntroState.timer = 3600;
gIntroState.state++;
}
UpdatePressStartIcon();
break;
default:
advance = GetAdvanceState();
if (advance != ADVANCE_NONE) {
if (advance == ADVANCE_KEY_PRESSED) {
PlaySFX(0x6a);
}
else {
advance = ADVANCE_NONE;
}
AdvanceIntroSequence(advance);
PlaySFX(0x80080000);
}
UpdatePressStartIcon();
if ((gIntroState.timer & 0x20) == 0) {
gUnk_03001010[4] = 0xe000;
gUnk_03001010[1] = 0x84;
sub_080ADA14(0x1ff,0);
}
}
if (gIntroState.gameLanguage != ((struct_02000000*)0x2000000)->gameLanguage) {
gIntroState.gameLanguage = ((struct_02000000*)0x2000000)->gameLanguage;
LoadGfxGroup(3);
}
UpdateLightRays();
sub_0805E5C0();
sub_080AD9B0();
}
static void UpdatePressStartIcon(void) {
gUnk_03001010[2] = 0;
gUnk_03001010[3] = 0;
gUnk_03001010[4] = 0xE020;
gUnk_03001010[0] = 120;
gUnk_03001010[1] = 152;
sub_080ADA14(511, 1);
return;
}
static void UpdateSwordBgAffineData(void)
{
struct BgAffineSrcData aff;
aff.texY = 0x8000;
aff.texX = 0x8000;
aff.scrX = 0x78;
aff.scrY = 0x48;
aff.alpha = 0;
aff.sy = aff.sx = gIntroState.swordBgScaleRatio;
BgAffineSet(&aff, (struct BgAffineDstData*)&gBgControls, 1);
}
static void HandleJapaneseTitlescreenAnimationIntro(void)
{
Entity *pEVar2;
switch (gIntroState.subState) {
case 0:
if (!gFadeControl.active) {
if ((gIntroState.counter & 1) == 0) {
gScreen.bg.bg2xOffset++;
}
if (GetAdvanceState() == ADVANCE_KEY_PRESSED || gScreen.bg.bg2xOffset == 0) {
gIntroState.subState++;
gScreen.bg.bg2xOffset = 0;
gScreen.bg.bg1xOffset = 0xc09;
gFadeControl.field_0x4 = 0x40;
DoFade(6, 0x10);
PlaySFX(0xf8);
}
}
break;
case 1:
if (!gFadeControl.active) {
gFadeControl.field_0x4 = -1;
gIntroState.subState++;
gIntroState.timer = 90;
pEVar2 = CreateObject(0xb4,0,0);
if (pEVar2 != NULL) {
pEVar2->x.HALF.HI = 0;
pEVar2->y.HALF.HI = 0x48;
}
}
break;
case 2:
if (GetAdvanceState() != ADVANCE_NONE) {
gIntroState.state++;
gIntroState.timer = 60;
}
}
}
static void HandleTitlescreenAnimationIntro(void) {
switch (gIntroState.subState) {
case 0:
if (!gFadeControl.active) {
gIntroState.subState = 1;
gScreen.lcd.displayControl |= 0x400;
PlaySFX(0xF6);
}
break;
case 1:
gIntroState.swordBgScaleRatio += 0x10;
if (gIntroState.swordBgScaleRatio > 0x100) {
gIntroState.swordBgScaleRatio = 0x100;
gIntroState.timer = 40;
gIntroState.subState++;
DoFade(6, 16);
}
UpdateSwordBgAffineData();
break;
case 2:
if (--gIntroState.timer == 0) {
gIntroState.timer = 300;
gIntroState.subState++;
CreateObject(0xBD, 0, 0);
DoFade(6, 16);
PlaySFX(0xF8);
}
break;
default:
if (!gFadeControl.active && GetAdvanceState() != ADVANCE_NONE) {
gIntroState.state++;
gIntroState.timer = 60;
}
break;
}
}
static void ExitTitlescreen(void) {
if (!gFadeControl.active) {
InitScreen(SCREEN_CHOOSE_FILE);
}
}
static u32 GetAdvanceState(void) {
u32 newKeys;
if (gFadeControl.active) {
return ADVANCE_NONE;
}
if (!gUnk_02000010.listenForKeyPresses) {
newKeys = 0;
} else {
newKeys = gUnk_03000FF0.newKeys & (A_BUTTON | START_BUTTON);
}
if (--gIntroState.timer == 0) {
return ADVANCE_TIMER_EXPIRED;
}
if (newKeys) {
return ADVANCE_KEY_PRESSED;
}
return ADVANCE_NONE;
}
static void UpdateLightRays(void) {
// Periodically rotate the palette to give a shimmeriming effect.
if ((gIntroState.counter & 0x7) == 0) {
gIntroState.lightRaysPaletteGroup++;
gIntroState.lightRaysPaletteGroup &= 0x3;
LoadPaletteGroup(5 + gIntroState.lightRaysPaletteGroup);
}
// Periodiccally update the transparency of the light rays.
if ((gIntroState.counter & 0x1F) == 0) {
gIntroState.lightRaysAlphaBlendIndex = (gIntroState.lightRaysAlphaBlendIndex + 1) & 0x7;
gScreen.controls.alphaBlend = sLightRaysAlphaBlends[gIntroState.lightRaysAlphaBlendIndex];
}
}
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