document minigame_countdown.c

1 files changed, 50 insertions, 50 deletions

diff --git a/src/sprite.c b/src/sprite.c
index c1fc89777..d109a8347 100644
--- a/src/sprite.c
+++ b/src/sprite.c
@@ -250,47 +250,47 @@ static const AffineAnimCmdFunc sAffineAnimCmdFuncs[] =
     AffineAnimCmd_frame,
 };
 
-static const s32 sUnknown_082EC6F4[3][4][2] =
+static const s32 sOamDimensionsCopy[3][4][2] =
 {
-    {
-        {8, 8},
-        {0x10, 0x10},
-        {0x20, 0x20},
-        {0x40, 0x40},
+    [ST_OAM_SQUARE] = {
+        [ST_OAM_SIZE_0] = { 8,  8}, // SPRITE_SIZE_8x8
+        [ST_OAM_SIZE_1] = {16, 16}, // SPRITE_SIZE_16x16
+        [ST_OAM_SIZE_2] = {32, 32}, // SPRITE_SIZE_32x32
+        [ST_OAM_SIZE_3] = {64, 64}, // SPRITE_SIZE_64x64
     },
-    {
-        {0x10, 8},
-        {0x20, 8},
-        {0x20, 0x10},
-        {0x40, 0x20},
+    [ST_OAM_H_RECTANGLE] = {
+        [ST_OAM_SIZE_0] = {16,  8}, // SPRITE_SIZE_16x8
+        [ST_OAM_SIZE_1] = {32,  8}, // SPRITE_SIZE_32x8
+        [ST_OAM_SIZE_2] = {32, 16}, // SPRITE_SIZE_32x16
+        [ST_OAM_SIZE_3] = {64, 32}, // SPRITE_SIZE_64x32
     },
-    {
-        {8, 0x10},
-        {8, 0x20},
-        {0x10, 0x20},
-        {0x20, 0x40},
+    [ST_OAM_V_RECTANGLE] = {
+        [ST_OAM_SIZE_0] = { 8, 16}, // SPRITE_SIZE_8x16
+        [ST_OAM_SIZE_1] = { 8, 32}, // SPRITE_SIZE_8x32
+        [ST_OAM_SIZE_2] = {16, 32}, // SPRITE_SIZE_16x32
+        [ST_OAM_SIZE_3] = {32, 64}, // SPRITE_SIZE_32x64
     },
 };
 
 static const struct OamDimensions sOamDimensions[3][4] =
 {
-    {   // square
-        {  8,  8 },
-        { 16, 16 },
-        { 32, 32 },
-        { 64, 64 },
+    [ST_OAM_SQUARE] = {
+        [ST_OAM_SIZE_0] = { 8,  8}, // SPRITE_SIZE_8x8
+        [ST_OAM_SIZE_1] = {16, 16}, // SPRITE_SIZE_16x16
+        [ST_OAM_SIZE_2] = {32, 32}, // SPRITE_SIZE_32x32
+        [ST_OAM_SIZE_3] = {64, 64}, // SPRITE_SIZE_64x64
     },
-    {   // horizontal rectangle
-        { 16,  8 },
-        { 32,  8 },
-        { 32, 16 },
-        { 64, 32 },
+    [ST_OAM_H_RECTANGLE] = {
+        [ST_OAM_SIZE_0] = {16,  8}, // SPRITE_SIZE_16x8
+        [ST_OAM_SIZE_1] = {32,  8}, // SPRITE_SIZE_32x8
+        [ST_OAM_SIZE_2] = {32, 16}, // SPRITE_SIZE_32x16
+        [ST_OAM_SIZE_3] = {64, 32}, // SPRITE_SIZE_64x32
     },
-    {   // vertical rectangle
-        {  8, 16 },
-        {  8, 32 },
-        { 16, 32 },
-        { 32, 64 },
+    [ST_OAM_V_RECTANGLE] = {
+        [ST_OAM_SIZE_0] = { 8, 16}, // SPRITE_SIZE_8x16
+        [ST_OAM_SIZE_1] = { 8, 32}, // SPRITE_SIZE_8x32
+        [ST_OAM_SIZE_2] = {16, 32}, // SPRITE_SIZE_16x32
+        [ST_OAM_SIZE_3] = {32, 64}, // SPRITE_SIZE_32x64
     },
 };
 
@@ -1222,43 +1222,43 @@ u8 GetSpriteMatrixNum(struct Sprite *sprite)
     return matrixNum;
 }
 
-void sub_8007FFC(struct Sprite* sprite, s16 a2, s16 a3)
+void obj_pos2_update_enable(struct Sprite* sprite, s16 a2, s16 a3)
 {
     sprite->data[6] = a2;
     sprite->data[7] = a3;
     sprite->flags_f = 1;
 }
 
-s32 sub_800800C(s32 a0, s32 a1, s32 a2)
+static s32 affine_get_new_pos2(s32 baseDim, s32 xformed, s32 modifier)
 {
-    s32 subResult, var1;
+    s32 subResult, shiftResult;
 
-    subResult = a1 - a0;
+    subResult = xformed - baseDim;
     if (subResult < 0)
-        var1 = -(subResult) >> 9;
+        shiftResult = -(subResult) >> 9;
     else
-        var1 = -(subResult >> 9);
-    return a2 - ((u32)(a2 * a1) / (u32)(a0) + var1);
+        shiftResult = -(subResult >> 9);
+    return modifier - ((u32)(modifier * xformed) / (u32)(baseDim) + shiftResult);
 }
 
-void obj_update_pos2(struct Sprite *sprite, s32 a1, s32 a2)
+static void obj_update_pos2(struct Sprite *sprite, s32 xmod, s32 ymod)
 {
-    s32 var0, var1, var2;
+    s32 dim, baseDim, xFormed;
 
     u32 matrixNum = sprite->oam.matrixNum;
-    if (a1 != 0x800)
+    if (xmod != 0x800)
     {
-        var0 = sUnknown_082EC6F4[sprite->oam.shape][sprite->oam.size][0];
-        var1 = var0 << 8;
-        var2 = (var0 << 16) / gOamMatrices[matrixNum].a;
-        sprite->pos2.x = sub_800800C(var1, var2, a1);
+        dim = sOamDimensionsCopy[sprite->oam.shape][sprite->oam.size][0];
+        baseDim = dim << 8;
+        xFormed = (dim << 16) / gOamMatrices[matrixNum].a;
+        sprite->pos2.x = affine_get_new_pos2(baseDim, xFormed, xmod);
     }
-    if (a2 != 0x800)
+    if (ymod != 0x800)
     {
-        var0 = sUnknown_082EC6F4[sprite->oam.shape][sprite->oam.size][1];
-        var1 = var0 << 8;
-        var2 = (var0 << 16) / gOamMatrices[matrixNum].d;
-        sprite->pos2.y = sub_800800C(var1, var2, a2);
+        dim = sOamDimensionsCopy[sprite->oam.shape][sprite->oam.size][1];
+        baseDim = dim << 8;
+        xFormed = (dim << 16) / gOamMatrices[matrixNum].d;
+        sprite->pos2.y = affine_get_new_pos2(baseDim, xFormed, ymod);
     }
 }