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Code Issues Releases Wiki Activity

implement more sub_6DAB4C

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This commit is contained in:
IntelOrca
2015-12-13 22:53:06 +00:00
parent 89bcf50c76
commit 656bc61a6a
1 changed files with 91 additions and 4 deletions
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95
src/ride/vehicle.c
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@@ -2495,10 +2495,10 @@ loc_6DCEB2:
}
if (RCT2_GLOBAL(0x00F64E08, sint32) >= 0) {
regs.si = vehicle->next_vehicle_on_train;
if (regs.si == SPRITE_INDEX_NULL) {
if ((uint16)regs.si == SPRITE_INDEX_NULL) {
goto loc_6DCEFF;
}
vehicle = GET_VEHICLE(regs.si);
vehicle = GET_VEHICLE((uint16)regs.si);
goto loc_6DC40E;
}
@@ -2509,8 +2509,95 @@ loc_6DCEB2:
goto loc_6DC40E;
loc_6DCEFF:
regs.esi = vehicle;
RCT2_CALLFUNC_Y(0x006DCEFF, &regs);
vehicle = RCT2_GLOBAL(0x00F64E04, rct_vehicle*);
regs.eax = 0;
regs.ebp = 0;
regs.dx = 0;
regs.ebx = 0;
for (;;) {
regs.ebx++;
regs.dx |= vehicle->update_flags;
regs.bp += vehicle->friction;
regs.eax += vehicle->var_2C;
regs.si = vehicle->next_vehicle_on_train;
if ((uint16)regs.si == SPRITE_INDEX_NULL) {
break;
}
vehicle = GET_VEHICLE((uint16)regs.si);
}
vehicle = RCT2_GLOBAL(0x00F64E04, rct_vehicle*);
regs.ebx /= regs.eax;
regs.ecx = (regs.eax * 21) >> 9;
regs.eax = vehicle->velocity >> 12;
regs.ecx -= regs.eax;
regs.ebx = vehicle->velocity;
regs.edx = vehicle->velocity >> 8;
regs.edx *= regs.edx;
if (regs.ebx < 0) {
regs.edx = -regs.edx;
}
regs.edx >>= 4;
regs.eax = regs.edx / regs.ebp;
regs.ecx -= regs.eax;
if (!(vehicleEntry->var_14 & (1 << 3))) {
goto loc_6DD069;
}
if (vehicleEntry->var_12 & (1 << 0)) {
regs.eax = vehicle->speed * 0x4000;
if (regs.eax < vehicle->velocity) {
goto loc_6DD069;
}
}
regs.eax = vehicle->speed;
regs.bx = vehicle->track_type >> 2;
regs.ebx = regs.eax;
regs.eax <<= 14;
regs.ebx *= regs.ebp;
regs.ebx >>= 2;
if (vehicle->update_flags & VEHICLE_UPDATE_FLAG_3) {
regs.eax = -regs.eax;
}
regs.eax -= vehicle->velocity;
regs.edx = vehicle->acceleration;
regs.edx <<= 1;
regs.eax *= regs.edx;
regs.eax = regs.eax / regs.ebx;
if (!(vehicleEntry->var_14 & (1 << 13))) {
goto loc_6DD054;
}
if (regs.eax < 0) {
regs.eax >>= 4;
}
if (vehicleEntry->var_14 & (1 << 2)) {
vehicle->var_B6 = clamp(-0x200, (sint16)vehicle->var_B6, 0x200);
}
if (vehicle->var_1F != 0) {
regs.eax = max(0, regs.eax);
if (vehicleEntry->var_14 & (1 << 2)) {
if (vehicle->var_1F == 2) {
vehicle->var_B6 = 0;
}
}
} else {
loc_6DD054:
regs.ebx = abs(vehicle->velocity);
if (regs.ebx > 0x10000) {
regs.ecx = 0;
}
}
regs.ecx += regs.eax;
loc_6DD069:
vehicle->var_2C = regs.ecx;
regs.eax = RCT2_GLOBAL(0x00F64E18, uint32);
regs.ebx = RCT2_GLOBAL(0x00F64E1C, uint32);
end:
hook_setreturnregisters(&regs);