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/**
* @file horizontalMinishPathBackgroundManager.c
* @ingroup Managers
*
* @brief Parallax scrolling for horizontal MinishPaths
*/
#include "manager/horizontalMinishPathBackgroundManager.h"
#include "common.h"
#include "screen.h"
#include "game.h"
#include "vram.h"
#include "room.h"
void sub_08057F20(HorizontalMinishPathBackgroundManager*);
void HorizontalMinishPathBackgroundManager_OnEnterRoom(HorizontalMinishPathBackgroundManager*);
void sub_08058034(void);
void sub_08058084(u16*, u16*);
void sub_08058004(u32, void*, void*);
extern u8 gUnk_02006F00[];
extern u16 gMapDataTopSpecial[];
void HorizontalMinishPathBackgroundManager_Main(HorizontalMinishPathBackgroundManager* this) {
sub_08057F20(this);
if (super->action == 0) {
super->action = 1;
gScreen.bg1.updated = 0;
gScreen.bg3.updated = 0;
RegisterTransitionHandler(this, HorizontalMinishPathBackgroundManager_OnEnterRoom, NULL);
}
}
void HorizontalMinishPathBackgroundManager_OnEnterRoom(HorizontalMinishPathBackgroundManager* this) {
LoadGfxGroup(gRoomVars.graphicsGroups[0]);
sub_08058034();
this->unk_3c = 0;
this->unk_38 = 0;
sub_08057F20(this);
}
void sub_08057F20(HorizontalMinishPathBackgroundManager* this) {
u32 tmp;
tmp = gRoomControls.scroll_x - gRoomControls.origin_x;
tmp = tmp + (tmp >> 3) + (0x400 - gRoomControls.width) / 2;
gScreen.bg3.xOffset = tmp & 0xF;
gScreen.bg3.yOffset = 0x30 - ((0x30 - (gRoomControls.scroll_y - gRoomControls.origin_y)) >> 2);
gScreen.bg3.subTileMap = gBG3Buffer;
sub_08058004(tmp, gUnk_02006F00, gBG3Buffer);
tmp = (tmp >> 4) << 1;
if (this->unk_38 != tmp) {
this->unk_38 = tmp;
gScreen.bg3.updated = 1;
}
tmp = gRoomControls.scroll_x - gRoomControls.origin_x;
tmp = tmp + (tmp >> 2) + (0x400 - gRoomControls.width) / 2;
gScreen.bg1.xOffset = tmp & 0xF;
gScreen.bg1.yOffset = 0x30 - ((0x30 - (gRoomControls.scroll_y - gRoomControls.origin_y)) >> 1);
gScreen.bg1.subTileMap = gBG3Buffer + 0x400;
sub_08058004(tmp, gUnk_02006F00 + 0x2000, gBG3Buffer + 0x400);
tmp = (tmp >> 4) << 1;
if (this->unk_3c != tmp) {
this->unk_3c = tmp;
gScreen.bg1.updated = 1;
}
}
void sub_08058004(u32 unk1, void* src, void* dest) {
u32 tmp = 0x20;
src += (unk1 >> 4) << 2;
for (tmp; tmp != 0; tmp--) {
DmaCopy16(3, src, dest, 0x20 * 2);
src += 0x100;
dest += 0x40;
}
}
void sub_08058034(void) {
u32 tmp;
u16 *tmp2, *tmp3;
tmp2 = gMapDataTopSpecial;
tmp3 = gMapDataTopSpecial + 0x2000;
for (tmp = 0; tmp < 4; tmp++) {
sub_08058084(tmp2, tmp3);
tmp2 += 0x400;
tmp3 += 0x20;
}
tmp2 = gMapDataTopSpecial + 0x1000;
tmp3 = gMapDataTopSpecial + 0x3000;
for (tmp = 0; tmp < 4; tmp++) {
sub_08058084(tmp2, tmp3);
tmp2 += 0x400;
tmp3 += 0x20;
}
}
void sub_08058084(u16* unk1, u16* unk2) {
u32 tmp;
for (tmp = 0; tmp < 0x20; tmp++, unk1 += 0x20, unk2 += 0x80) {
DmaCopy16(3, unk1, unk2, 0x20 * 2);
}
}
void sub_080580B0(u32 unk1) {
s32 tmp;
gMapTop.bgSettings = 0;
REG_DISPCNT = 0;
LoadGfxGroup(unk1);
gRoomVars.graphicsGroups[0] = unk1;
sub_08058034();
tmp = gRoomControls.scroll_x - gRoomControls.origin_x;
tmp = tmp + (tmp >> 3) + (0x400 - gRoomControls.width) / 2;
sub_08058004(tmp, gUnk_02006F00, gBG3Buffer);
gScreen.bg3.xOffset = tmp & 0xF;
gScreen.bg3.yOffset = 0x30 - ((0x30 - (gRoomControls.scroll_y - gRoomControls.origin_y)) >> 1); //?
gScreen.bg3.control = 0x1D09;
gScreen.bg3.subTileMap = gBG3Buffer;
gScreen.bg3.updated = 1;
tmp = gRoomControls.scroll_x - gRoomControls.origin_x;
tmp = tmp + (tmp >> 2) + (0x400 - gRoomControls.width) / 2;
sub_08058004(tmp, gUnk_02006F00 + 0x2000, gBG3Buffer + 0x400);
gScreen.bg1.xOffset = tmp & 0xF;
gScreen.bg1.yOffset = 0x30 - ((0x30 - (gRoomControls.scroll_y - gRoomControls.origin_y)) >> 1); //?
gScreen.bg1.control = 0x1E09;
gScreen.bg1.subTileMap = gBG3Buffer + 0x400;
gScreen.bg1.updated = 1;
gScreen.controls.layerFXControl = 0x3C48;
gScreen.controls.alphaBlend = 0x609;
gScreen.lcd.displayControl |= 0xa00;
}
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