teachy_tv and minor update to match DizzyEgg's struct def

1 files changed, 217 insertions, 0 deletions

diff --git a/src/teachy_tv.c b/src/teachy_tv.c
new file mode 100644
index 000000000..2c34b731b
--- /dev/null
+++ b/src/teachy_tv.c
@@ -0,0 +1,217 @@
+#include "main.h"
+#include "global.h"
+#include "task.h"
+#include "menu.h"
+#include "palette.h"
+#include "sprite.h"
+#include "menu_helpers.h"
+#include "sound.h"
+#include "malloc.h"
+#include "sprite.h"
+#include "scanline_effect.h"
+#include "bg.h"
+#include "gpu_regs.h"
+#include "decompress.h"
+#include "window.h"
+#include "list_menu.h"
+#include "item.h"
+#include "constants/songs.h"
+#include "constants/items.h"
+
+typedef struct {
+    void (*callback)();
+    u8 mode;
+    u8 param1;
+    u16 param2;
+    u16 param3;
+    u8 param4;
+    u8 filler;
+} TeachyTv_s;
+
+extern TeachyTv_s gTeachyTV_StaticResources;
+extern void * gUnknown_203F450;
+void C2TeachyTv();
+void C2TeachyTvMainCallback();
+void VblankHandlerTeachyTv();
+void sub_815ABC4(u8 mode, void (*cb)());
+void CB2_ReturnToTeachyTV();
+extern void sub_815AC20();
+void TeachyTvCreateAndRenderRbox();
+extern void TeachyTvInitIo();
+extern u8 TeachyTvSetupObj();
+extern void TeachyTvConfigRboxAndObj(u8);
+extern u8 sub_815AEE8();
+extern void sub_815AF5C();
+extern void sub_815B094();
+void TeachyTvSetupBg();
+void TeachyTvLoadGraphic();
+extern void TeachyTvTaskFunction(u8);
+extern void sub_815B2C0(u8);
+extern void VblankHblankHandlerSetZero();
+extern void sub_812B1E0(u16);
+extern struct BgTemplate gUnknown_84792E0;
+extern void *gUnknown_203F450; // tilemap pointer location
+extern u8 gUnknown_8E86240; // tilemap
+extern u8 gUnknown_8E86BE8;
+extern u8 gUnknown_8E86D6C;
+extern u8 gUnknown_8E86F98; // pal
+extern struct SpritePalette gUnknown_83A5348;
+extern void sub_815BD80(void *);
+typedef struct Task Task;
+extern struct WindowTemplate gUnknown_84792F0;
+
+
+void C2TeachyTv()
+{
+    RunTasks();
+    AnimateSprites();
+    BuildOamBuffer();
+    do_scheduled_bg_tilemap_copies_to_vram();
+    UpdatePaletteFade();
+}
+
+void VblankHandlerTeachyTv()
+{
+    LoadOam();
+    ProcessSpriteCopyRequests();
+    TransferPlttBuffer();
+}
+
+void sub_815ABC4(u8 mode, void (*cb)())
+{
+    // JZW: I'm sorry, but otherwise I can't make it match baserom
+    TeachyTv_s *v3 = &gTeachyTV_StaticResources;
+    u16 v4 = 0;
+    v3->mode = mode;
+    v3->callback = cb;
+    if(!mode) {
+        v3->param2 = v4;
+        v3->param3 = v4;
+        v3->param1 = 0;
+    }
+    if(mode == 1)
+        v3->mode = 0;
+    SetMainCallback2(C2TeachyTvMainCallback);
+}
+
+void CB2_ReturnToTeachyTV()
+{
+    if(gTeachyTV_StaticResources.mode == 1)
+        sub_815ABC4(1,gTeachyTV_StaticResources.callback);
+    else
+        sub_815ABC4(2,gTeachyTV_StaticResources.callback);
+}
+
+void sub_815AC20()
+{
+    gTeachyTV_StaticResources.mode = 1;
+}
+
+void C2TeachyTvMainCallback()
+{
+    int state;
+    void *mallocPtr;
+    int taskId;
+    Task *taskAddr;
+    u8 **v4;
+    u32 x;
+
+    state = gMain.state;
+    if ( state == 0 )
+        goto section_0;
+    else if ( state == 1 )
+        goto section_1;
+    else
+        return;
+    section_0:
+        v4 = (u8 **)&gUnknown_203F450;
+        (*v4) = (u8*)AllocZeroed(0x4008u);
+        *(u32*)gUnknown_203F450 = (u32)state;
+        *((u8*)gUnknown_203F450 + 0x4006) = state;
+        *((u8*)gUnknown_203F450 + 0x4007) = 0xFF;
+        VblankHblankHandlerSetZero();
+        clear_scheduled_bg_copies_to_vram();
+        ScanlineEffect_Stop();
+        FreeAllSpritePalettes();
+        ResetPaletteFade();
+        ResetSpriteData();
+        ResetTasks();
+        TeachyTvSetupBg();
+        TeachyTvLoadGraphic();
+        ++gMain.state;
+        return;
+    section_1:
+        if( free_temp_tile_data_buffers_if_possible() == 1 )
+            return;
+        TeachyTvCreateAndRenderRbox();
+        TeachyTvInitIo();
+        if ( gTeachyTV_StaticResources.mode == 2 )
+        {
+            taskId = CreateTask(TeachyTvTaskFunction, 0);
+            gTasks[taskId].data[1] = TeachyTvSetupObj();
+            TeachyTvConfigRboxAndObj(taskId);
+        }
+        else
+        {
+            taskId = CreateTask(sub_815B2C0, 0);
+            x = (u32)sub_815AEE8();
+            gTasks[taskId].data[0] = (x << 24) >> 24;
+            gTasks[taskId].data[1] = TeachyTvSetupObj();
+            sub_815AF5C();
+            PlayNewMapMusic(BGM_FRLG_TEACHY_TV);
+            sub_815B094();
+        }
+        schedule_bg_copy_tilemap_to_vram(0);
+        schedule_bg_copy_tilemap_to_vram(1u);
+        schedule_bg_copy_tilemap_to_vram(2u);
+        schedule_bg_copy_tilemap_to_vram(3u);
+        sub_812B1E0(9); // help system something
+        BlendPalettes(0xFFFFFFFF, 0x10u, 0);
+        BeginNormalPaletteFade(0xFFFFFFFF, 0, 0x10u, 0, 0);
+        SetVBlankCallback(VblankHandlerTeachyTv);
+        SetMainCallback2(C2TeachyTv);
+}
+
+void TeachyTvSetupBg()
+{
+    InitBgReg();
+    ResetBgsAndClearDma3BusyFlags(0);
+    InitBgsFromTemplates(0, &gUnknown_84792E0, 4u);
+    SetBgTilemapBuffer(1u, (u8 *)gUnknown_203F450 + 4);
+    SetBgTilemapBuffer(2u, (u8 *)gUnknown_203F450 + 0x1004);
+    SetBgTilemapBuffer(3u, (u8 *)gUnknown_203F450 + 0x2004);
+    SetGpuReg(0, 0x3040u);
+    ShowBg(0);
+    ShowBg(1u);
+    ShowBg(2u);
+    ShowBg(3u);
+    ChangeBgX(3u, 0x1000u, 2u);
+    ChangeBgY(3u, 0x2800u, 1u);
+    *((u8 *)gUnknown_203F450 + 0x4004) = 0;
+    *((u8 *)gUnknown_203F450 + 0x4005) = 3;
+    SetGpuReg(0x50u, 0);
+}
+
+void TeachyTvLoadGraphic()
+{
+    u16 src;
+    src = 0;
+    reset_temp_tile_data_buffers();
+    decompress_and_copy_tile_data_to_vram(1u, &gUnknown_8E86240, 0, 0, 0);
+    LZDecompressWram((u8 *)&gUnknown_8E86BE8, (*(u8 **)&gUnknown_203F450) + 4);
+    LZDecompressWram((u8 *)&gUnknown_8E86D6C, (*(u8 **)&gUnknown_203F450) + 0x3004);
+    LoadCompressedPalette(&gUnknown_8E86F98, 0, 0x80u);
+    LoadPalette(&src, 0, 2u);
+    LoadSpritePalette((struct SpritePalette *)&gUnknown_83A5348);
+    sub_815BD80((u8 *)gUnknown_203F450 + 0x2004);
+}
+
+void TeachyTvCreateAndRenderRbox()
+{
+    InitWindows(&gUnknown_84792F0);
+    DeactivateAllTextPrinters();
+    FillWindowPixelBuffer(0, 0xCCu);
+    PutWindowTilemap(0);
+    PutWindowTilemap(1u);
+    CopyWindowToVram(0, 2u);
+}
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