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True match sub_0801E64C (#665) 

* True match sub_0801E64C

* modify macro to constant

* fix comments from tab to spaces
This commit is contained in:
Tony Jih 2023-12-26 13:24:30 +08:00 committed by GitHub
parent b03db98200
commit 4c69055d41
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 39 additions and 35 deletions
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68
src/common.c
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@ -85,7 +85,7 @@ bool32 IsRoomVisited(TileEntity* tileEntity, u32 bank);
u32 sub_0801DF60(u32 a1, u8* p);
u32 sub_0801DF78(u32 a1, u32 a2);
void sub_0801DF28(u32 x, u32 y, s32 color);
void sub_0801E64C(s32 param_1, s32 param_2, s32 param_3, s32 param_4, s32 param_5);
void sub_0801E64C(s32 x1, s32 y1, s32 x2, s32 y2, s32 offset);
extern void* GetRoomProperty(u32, u32, u32);
@ -1006,42 +1006,46 @@ void sub_0801E49C(s32 baseX, s32 baseY, s32 radius, u32 baseAngle) {
0x1);
}
void sub_0801E64C(s32 param_1, s32 param_2, s32 param_3, s32 param_4, s32 param_5) {
s32 sVar1;
s32* ptr = (s32*)gUnk_02018EE0;
register s32 tmp asm("r1");
void sub_0801E64C(s32 x1, s32 y1, s32 x2, s32 y2, s32 offset) {
// GBA Resolutions
const s32 MAX_X_COORD = 240;
const s32 MAX_Y_COORD = 160;
if ((0 <= param_2 || 0 <= param_4) && (param_2 < 0xa0 || (param_4 < 0xa0))) {
if (param_2 > param_4) {
SWAP(param_2, param_4, tmp);
SWAP(param_1, param_3, tmp);
s32 slope, preciseX, tmp;
s32* drawPtr = (s32*)gUnk_02018EE0;
if ((y1 < 0 && y2 < 0) || (y1 >= MAX_Y_COORD && y2 >= MAX_Y_COORD))
return;
if (y1 > y2) {
SWAP(y1, y2, tmp);
SWAP(x1, x2, tmp);
}
if (param_2 != param_4) {
sVar1 = Div((param_3 - param_1) * 0x10000, param_4 - param_2);
if (param_2 < 0) {
param_1 += (sVar1 * -param_2) >> 0x10;
param_2 = 0;
if (y1 == y2)
return;
slope = Div((x2 - x1) * 0x10000, y2 - y1);
if (y1 < 0) {
x1 += (slope * -y1) >> 0x10;
y1 = 0;
}
if (0x9f < param_4) {
param_4 = 0x9f;
if (y2 >= MAX_Y_COORD) {
y2 = MAX_Y_COORD - 1;
}
param_3 = param_1 << 0x10;
ptr += param_2 * 3 + param_5;
preciseX = x1 << 0x10;
drawPtr += y1 * 3 + offset;
do {
if (param_1 < 0) {
param_1 = 0;
}
if (0xf0 < param_1) {
param_1 = 0xf0;
}
*ptr = param_1;
param_3 += sVar1;
param_1 = param_3 >> 0x10;
param_2++;
ptr += 3;
} while (param_2 <= param_4);
}
}
// Clamp x1 in range
x1 = x1 < 0 ? 0 : x1;
x1 = x1 < MAX_X_COORD ? x1 : MAX_X_COORD;
*drawPtr = x1;
preciseX += slope;
x1 = preciseX >> 0x10;
y1++;
drawPtr += 3;
} while (y1 <= y2);
}
void NotifyFusersOnFusionDone(KinstoneId kinstoneId) {