mirror of
https://github.com/pret/pokeruby.git
synced 2024-12-04 03:01:44 +00:00
496 lines
12 KiB
C
496 lines
12 KiB
C
#include "global.h"
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#include "field_camera.h"
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#include "berry.h"
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#include "field_player_avatar.h"
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#include "fieldmap.h"
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#include "rotating_gate.h"
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#include "sprite.h"
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#include "text.h"
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EWRAM_DATA u8 gUnknown_0202E854 = 0;
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struct UnknownStruct
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{
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u8 unk0;
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u8 unk1;
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u8 unk2;
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u8 unk3;
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bool8 unk4;
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};
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static struct UnknownStruct gUnknown_03000590;
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static u16 gUnknown_03000598;
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static s16 gUnknown_0300059A;
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static u8 gUnknown_0300059C;
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static void (*gUnknown_030005A0)(void);
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struct CameraSomething gUnknown_03004880;
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u16 gUnknown_03004898;
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u16 gUnknown_0300489C;
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static void RedrawMapSliceNorth(struct UnknownStruct *a, struct MapData *mapData);
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static void RedrawMapSliceSouth(struct UnknownStruct *a, struct MapData *mapData);
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static void RedrawMapSliceEast(struct UnknownStruct *a, struct MapData *mapData);
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static void RedrawMapSliceWest(struct UnknownStruct *a, struct MapData *mapData);
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static s32 MapPosToBgTilemapOffset(struct UnknownStruct *a, s32 x, s32 y);
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static void DrawWholeMapViewInternal(int x, int y, struct MapData *mapData);
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static void DrawMetatileAt(struct MapData *mapData, u16, int, int);
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static void DrawMetatile(s32 a, u16 *b, u16 c);
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static void CameraPanningCB_PanAhead(void);
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static void move_tilemap_camera_to_upper_left_corner_(struct UnknownStruct *a)
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{
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a->unk2 = 0;
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a->unk3 = 0;
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a->unk0 = 0;
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a->unk1 = 0;
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a->unk4 = TRUE;
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}
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static void tilemap_move_something(struct UnknownStruct *a, u32 b, u32 c)
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{
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a->unk2 += b;
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a->unk2 %= 32;
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a->unk3 += c;
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a->unk3 %= 32;
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}
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static void coords8_add(struct UnknownStruct *a, u32 b, u32 c)
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{
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a->unk0 += b;
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a->unk1 += c;
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}
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void move_tilemap_camera_to_upper_left_corner(void)
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{
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move_tilemap_camera_to_upper_left_corner_(&gUnknown_03000590);
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CpuFill16(0, gBGTilemapBuffers[2], 0x800);
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CpuFill16(0, gBGTilemapBuffers[1], 0x800);
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CpuFill16(0x3014, gBGTilemapBuffers[3], 0x800);
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}
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void sub_8057A58(void)
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{
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*gBGHOffsetRegs[1] = gUnknown_03000590.unk0 + gUnknown_03000598;
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*gBGVOffsetRegs[1] = gUnknown_03000590.unk1 + gUnknown_0300059A + 8;
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*gBGHOffsetRegs[2] = gUnknown_03000590.unk0 + gUnknown_03000598;
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*gBGVOffsetRegs[2] = gUnknown_03000590.unk1 + gUnknown_0300059A + 8;
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*gBGHOffsetRegs[3] = gUnknown_03000590.unk0 + gUnknown_03000598;
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*gBGVOffsetRegs[3] = gUnknown_03000590.unk1 + gUnknown_0300059A + 8;
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if (gUnknown_03000590.unk4)
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{
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DmaCopy16(3, gBGTilemapBuffers[1], (void *)(VRAM + 0xE800), 0x800);
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DmaCopy16(3, gBGTilemapBuffers[2], (void *)(VRAM + 0xE000), 0x800);
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DmaCopy16(3, gBGTilemapBuffers[3], (void *)(VRAM + 0xF000), 0x800);
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gUnknown_03000590.unk4 = FALSE;
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}
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}
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void sub_8057B14(u16 *a, u16 *b)
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{
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*a = gUnknown_03000590.unk0 + gUnknown_03000598;
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*b = gUnknown_03000590.unk1 + gUnknown_0300059A + 8;
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}
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void DrawWholeMapView(void)
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{
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DrawWholeMapViewInternal(gSaveBlock1.pos.x, gSaveBlock1.pos.y, gMapHeader.mapData);
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gUnknown_03000590.unk4 = TRUE;
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}
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static void DrawWholeMapViewInternal(int x, int y, struct MapData *mapData)
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{
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u8 i;
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u8 j;
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u32 r6;
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u8 temp;
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for (i = 0; i < 32; i += 2)
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{
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temp = gUnknown_03000590.unk3 + i;
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if (temp >= 32)
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temp -= 32;
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r6 = temp * 32;
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for (j = 0; j < 32; j += 2)
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{
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temp = gUnknown_03000590.unk2 + j;
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if (temp >= 32)
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temp -= 32;
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DrawMetatileAt(mapData, r6 + temp, x + j / 2, y + i / 2);
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}
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}
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}
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static void RedrawMapSlicesForCameraUpdate(struct UnknownStruct *a, int x, int y)
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{
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struct MapData *mapData = gMapHeader.mapData;
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if (x > 0)
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RedrawMapSliceWest(a, mapData);
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if (x < 0)
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RedrawMapSliceEast(a, mapData);
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if (y > 0)
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RedrawMapSliceNorth(a, mapData);
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if (y < 0)
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RedrawMapSliceSouth(a, mapData);
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a->unk4 = TRUE;
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}
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static void RedrawMapSliceNorth(struct UnknownStruct *a, struct MapData *mapData)
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{
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u8 i;
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u8 temp;
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u32 r7;
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temp = a->unk3 + 28;
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if (temp >= 32)
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temp -= 32;
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r7 = temp * 32;
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for (i = 0; i < 32; i += 2)
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{
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temp = a->unk2 + i;
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if (temp >= 32)
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temp -= 32;
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DrawMetatileAt(mapData, r7 + temp, gSaveBlock1.pos.x + i / 2, gSaveBlock1.pos.y + 14);
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}
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}
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static void RedrawMapSliceSouth(struct UnknownStruct *a, struct MapData *mapData)
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{
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u8 i;
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u8 temp;
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u32 r7 = a->unk3 * 32;
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for (i = 0; i < 32; i += 2)
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{
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temp = a->unk2 + i;
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if (temp >= 32)
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temp -= 32;
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DrawMetatileAt(mapData, r7 + temp, gSaveBlock1.pos.x + i / 2, gSaveBlock1.pos.y);
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}
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}
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static void RedrawMapSliceEast(struct UnknownStruct *a, struct MapData *mapData)
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{
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u8 i;
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u8 temp;
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u32 r6 = a->unk2;
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for (i = 0; i < 32; i += 2)
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{
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temp = a->unk3 + i;
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if (temp >= 32)
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temp -= 32;
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DrawMetatileAt(mapData, temp * 32 + r6, gSaveBlock1.pos.x, gSaveBlock1.pos.y + i / 2);
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}
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}
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static void RedrawMapSliceWest(struct UnknownStruct *a, struct MapData *mapData)
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{
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u8 i;
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u8 temp;
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u8 r5 = a->unk2 + 28;
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if (r5 >= 32)
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r5 -= 32;
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for (i = 0; i < 32; i += 2)
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{
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temp = a->unk3 + i;
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if (temp >= 32)
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temp -= 32;
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DrawMetatileAt(mapData, temp * 32 + r5, gSaveBlock1.pos.x + 14, gSaveBlock1.pos.y + i / 2);
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}
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}
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void CurrentMapDrawMetatileAt(int a, int b)
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{
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int offset = MapPosToBgTilemapOffset(&gUnknown_03000590, a, b);
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if (offset >= 0)
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{
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DrawMetatileAt(gMapHeader.mapData, offset, a, b);
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gUnknown_03000590.unk4 = TRUE;
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}
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}
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void DrawDoorMetatileAt(int x, int y, u16 *arr)
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{
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int offset = MapPosToBgTilemapOffset(&gUnknown_03000590, x, y);
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if (offset >= 0)
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{
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DrawMetatile(1, arr, offset);
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gUnknown_03000590.unk4 = TRUE;
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}
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}
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static void DrawMetatileAt(struct MapData *mapData, u16 b, int c, int d)
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{
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u16 metatileId = MapGridGetMetatileIdAt(c, d);
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u16 *metatiles;
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if (metatileId > 1024)
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metatileId = 0;
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if (metatileId < 512)
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metatiles = mapData->primaryTileset->metatiles;
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else
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{
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metatiles = mapData->secondaryTileset->metatiles;
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metatileId -= 512;
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}
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DrawMetatile(MapGridGetMetatileLayerTypeAt(c, d), metatiles + metatileId * 8, b);
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}
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static void DrawMetatile(s32 a, u16 *b, u16 c)
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{
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switch (a)
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{
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case 2:
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gBGTilemapBuffers[3][c] = b[0];
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gBGTilemapBuffers[3][c + 1] = b[1];
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gBGTilemapBuffers[3][c + 0x20] = b[2];
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gBGTilemapBuffers[3][c + 0x21] = b[3];
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gBGTilemapBuffers[2][c] = 0;
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gBGTilemapBuffers[2][c + 1] = 0;
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gBGTilemapBuffers[2][c + 0x20] = 0;
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gBGTilemapBuffers[2][c + 0x21] = 0;
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gBGTilemapBuffers[1][c] = b[4];
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gBGTilemapBuffers[1][c + 1] = b[5];
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gBGTilemapBuffers[1][c + 0x20] = b[6];
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gBGTilemapBuffers[1][c + 0x21] = b[7];
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break;
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case 1:
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gBGTilemapBuffers[3][c] = b[0];
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gBGTilemapBuffers[3][c + 1] = b[1];
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gBGTilemapBuffers[3][c + 0x20] = b[2];
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gBGTilemapBuffers[3][c + 0x21] = b[3];
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gBGTilemapBuffers[2][c] = b[4];
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gBGTilemapBuffers[2][c + 1] = b[5];
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gBGTilemapBuffers[2][c + 0x20] = b[6];
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gBGTilemapBuffers[2][c + 0x21] = b[7];
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gBGTilemapBuffers[1][c] = 0;
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gBGTilemapBuffers[1][c + 1] = 0;
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gBGTilemapBuffers[1][c + 0x20] = 0;
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gBGTilemapBuffers[1][c + 0x21] = 0;
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break;
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case 0:
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gBGTilemapBuffers[3][c] = 0x3014;
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gBGTilemapBuffers[3][c + 1] = 0x3014;
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gBGTilemapBuffers[3][c + 0x20] = 0x3014;
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gBGTilemapBuffers[3][c + 0x21] = 0x3014;
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gBGTilemapBuffers[2][c] = b[0];
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gBGTilemapBuffers[2][c + 1] = b[1];
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gBGTilemapBuffers[2][c + 0x20] = b[2];
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gBGTilemapBuffers[2][c + 0x21] = b[3];
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gBGTilemapBuffers[1][c] = b[4];
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gBGTilemapBuffers[1][c + 1] = b[5];
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gBGTilemapBuffers[1][c + 0x20] = b[6];
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gBGTilemapBuffers[1][c + 0x21] = b[7];
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break;
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}
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}
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static s32 MapPosToBgTilemapOffset(struct UnknownStruct *a, s32 x, s32 y)
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{
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x -= gSaveBlock1.pos.x;
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x *= 2;
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if (x >= 32 || x < 0)
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return -1;
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x = x + a->unk2;
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if (x >= 32)
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x -= 32;
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y = (y - gSaveBlock1.pos.y) * 2;
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if (y >= 32 || y < 0)
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return -1;
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y = y + a->unk3;
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if (y >= 32)
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y -= 32;
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return y * 32 + x;
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}
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static void CameraUpdateCallback(struct CameraSomething *a)
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{
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if (a->unk4 != 0)
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{
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a->unk8 = gSprites[a->unk4].data2;
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a->unkC = gSprites[a->unk4].data3;
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}
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}
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void ResetCameraUpdateInfo(void)
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{
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gUnknown_03004880.unk8 = 0;
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gUnknown_03004880.unkC = 0;
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gUnknown_03004880.unk10 = 0;
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gUnknown_03004880.unk14 = 0;
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gUnknown_03004880.unk4 = 0;
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gUnknown_03004880.callback = NULL;
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}
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u32 InitCameraUpdateCallback(u8 a)
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{
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if (gUnknown_03004880.unk4 != 0)
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DestroySprite(&gSprites[gUnknown_03004880.unk4]);
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gUnknown_03004880.unk4 = AddCameraObject(a);
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gUnknown_03004880.callback = CameraUpdateCallback;
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return 0;
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}
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void CameraUpdate(void)
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{
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int deltaX;
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int deltaY;
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int r0;
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int r1;
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int r7;
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int r8;
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if (gUnknown_03004880.callback != NULL)
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gUnknown_03004880.callback(&gUnknown_03004880);
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r7 = gUnknown_03004880.unk8;
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r8 = gUnknown_03004880.unkC;
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deltaX = 0;
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deltaY = 0;
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r1 = gUnknown_03004880.unk10;
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r0 = gUnknown_03004880.unk14;
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if (r1 == 0 && r7 != 0)
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{
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if (r7 > 0)
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deltaX = 1;
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else
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deltaX = -1;
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}
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if (r0 == 0 && r8 != 0)
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{
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if (r8 > 0)
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deltaY = 1;
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else
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deltaY = -1;
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}
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if (r1 != 0 && r1 == -r7)
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{
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if (r7 > 0)
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deltaX = 1;
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else
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deltaX = -1;
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}
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if (r0 != 0 && r0 == -r8)
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{
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if (r8 > 0)
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deltaX = 1;
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else
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deltaX = -1;
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}
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gUnknown_03004880.unk10 += r7;
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gUnknown_03004880.unk10 = gUnknown_03004880.unk10 - 16 * (gUnknown_03004880.unk10 / 16);
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gUnknown_03004880.unk14 += r8;
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gUnknown_03004880.unk14 = gUnknown_03004880.unk14 - 16 * (gUnknown_03004880.unk14 / 16);
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if (deltaX != 0 || deltaY != 0)
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{
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CameraMove(deltaX, deltaY);
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UpdateFieldObjectsForCameraUpdate(deltaX, deltaY);
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RotatingGatePuzzleCameraUpdate(deltaX, deltaY);
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ResetBerryTreeSparkleFlags();
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tilemap_move_something(&gUnknown_03000590, deltaX * 2, deltaY * 2);
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RedrawMapSlicesForCameraUpdate(&gUnknown_03000590, deltaX * 2, deltaY * 2);
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}
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coords8_add(&gUnknown_03000590, r7, r8);
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gUnknown_0300489C -= r7;
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gUnknown_03004898 -= r8;
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}
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void camera_move_and_redraw(int a, int b)
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{
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CameraMove(a, b);
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UpdateFieldObjectsForCameraUpdate(a, b);
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DrawWholeMapView();
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gUnknown_0300489C -= a * 16;
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gUnknown_03004898 -= b * 16;
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}
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void SetCameraPanningCallback(void (*a)(void))
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{
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gUnknown_030005A0 = a;
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}
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void SetCameraPanning(s16 a, s16 b)
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{
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gUnknown_03000598 = a;
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gUnknown_0300059A = b + 32;
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}
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void InstallCameraPanAheadCallback(void)
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{
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gUnknown_030005A0 = CameraPanningCB_PanAhead;
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gUnknown_0300059C = 0;
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gUnknown_03000598 = 0;
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gUnknown_0300059A = 32;
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}
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void UpdateCameraPanning(void)
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{
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if (gUnknown_030005A0 != NULL)
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gUnknown_030005A0();
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//Update sprite offset of overworld objects
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gSpriteCoordOffsetX = gUnknown_0300489C - gUnknown_03000598;
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gSpriteCoordOffsetY = gUnknown_03004898 - gUnknown_0300059A - 8;
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}
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static void CameraPanningCB_PanAhead(void)
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{
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u8 var;
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if (gUnknown_0202E854 == 0)
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{
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InstallCameraPanAheadCallback();
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}
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else
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{
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if (gPlayerAvatar.running1 == 1)
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{
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gUnknown_0300059C ^= 1;
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if (gUnknown_0300059C == 0)
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return;
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}
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else
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{
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gUnknown_0300059C = 0;
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}
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var = player_get_direction_upper_nybble();
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if (var == 2)
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{
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if (gUnknown_0300059A > -8)
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gUnknown_0300059A -= 2;
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}
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else if (var == 1)
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{
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if (gUnknown_0300059A < 72)
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gUnknown_0300059A += 2;
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}
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else if (gUnknown_0300059A < 32)
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{
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gUnknown_0300059A += 2;
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}
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else if (gUnknown_0300059A > 32)
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{
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gUnknown_0300059A -= 2;
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}
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}
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}
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