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Decompile more tunnel stuff

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Marijn van der Werf
2016-04-27 00:00:19 +02:00
parent 70debab0fa
commit 0c49043417
1 changed files with 23 additions and 21 deletions
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44
src/interface/paint_surface.c
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@@ -699,53 +699,55 @@ void viewport_surface_draw_land_side_bottom(enum edge edge, uint8 height, uint8
}
// Tunnels
uint32 ebx = RCT2_GLOBAL(0x9E3138 + 1, uint8);
uint8 tunnelType = RCT2_GLOBAL(0x9E3138 + 1, uint8);
regs.dh = curHeight;
uint32 saved_edx = regs.edx;
uint32 saved_eax = regs.eax;
regs.dl = regs.dh + stru_97B570[ebx][0];
regs.dh = 0;
regs.dl = curHeight + stru_97B570[tunnelType][0];
if (regs.dl > regs.ah) {
regs.dl -= stru_97B570[ebx][0];
ebx = byte_97B5B0[ebx];
RCT2_GLOBAL(0x9E3138, uint8) = ebx;
regs.dl += stru_97B570[ebx][0];
if (regs.dl > regs.ah || regs.dl > regs.al) {
regs.dl -= stru_97B570[tunnelType][0];
tunnelType = byte_97B5B0[tunnelType];
} else {
regs.dl -= stru_97B570[tunnelType][0];
}
regs.dl -= stru_97B570[ebx][0];
regs.dx <<= 4;
sint16 imageHeight = regs.dx;
regs.ah = stru_97B570[ebx][1];
regs.ah = stru_97B570[tunnelType][1];
//save edx
uint16 boundOffsetZ = regs.dx;
boundOffsetZ += word_97B590[ebx];
boundOffsetZ += word_97B590[tunnelType];
regs.ah /= 16;
if (boundOffsetZ < 16) {
boundOffsetZ += 16;
regs.ah -= 16;
}
uint32 esi = RCT2_GLOBAL(0x009E32AC, uint32); // var_10
uint32 image_id = stru_97B640[terrain][ebx];
uint32 image_id = stru_97B640[3][tunnelType];
sub_98197C(image_id, 30, 0, 32, 1, regs.ah, imageHeight, 0, 0, boundOffsetZ, get_current_rotation());
regs.edx = saved_edx;
regs.eax = saved_eax;
// push edx
boundOffsetZ = regs.dh * 16;
ebx = RCT2_GLOBAL(0x9E3138 + 1, uint8);
regs.ah = stru_97B570[ebx][1] * 16;
boundOffsetZ += word_97B590[ebx];
if (boundOffsetZ != word_97B590[ebx]) {
sint8 boundHeight = stru_97B570[tunnelType][1] * 16;
boundOffsetZ += word_97B590[tunnelType];
if (boundOffsetZ == 0) {
boundOffsetZ += 16;
regs.ah -= 16;
boundHeight -= 16;
}
image_id = stru_97B640[terrain][ebx] + 1;
sub_98197C(image_id, 30, 0, 32, 1, regs.ah, regs.dh * 16, 0, 31, boundOffsetZ, get_current_rotation());
image_id = stru_97B640[3][tunnelType] + 1;
sub_98197C(image_id, 30, 0, 32, 1, boundHeight - 1, regs.dh * 16, 0, 31, boundOffsetZ, get_current_rotation());
uint8 edi = RCT2_GLOBAL(0x9E3138 + 1, uint8);
regs.edx = saved_edx;
regs.eax = saved_eax;
curHeight += stru_97B570[edi][0];
curHeight += stru_97B570[tunnelType][0];
for (int offset = 0; offset <= 0x7E; offset += 4) {
RCT2_GLOBAL(0x9E3138 + offset, uint32) = RCT2_GLOBAL(0x9E3138 + 2 + offset, uint32);