mirror of https://github.com/OpenRCT2/OpenRCT2.git
Initial work. Decompiled up to 0x663BE4
This commit is contained in:
U-ASUS-EEEPC\Cameron Hall
parent
3b4f05358d
commit
9cf2783785
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@ -497,6 +497,7 @@ enum {
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STR_QUEUE_TIME_MINUTES = 1360,
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STR_TOO_HIGH_FOR_SUPPORTS = 1363,
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STR_SUPPORTS_CANT_BE_EXTENDED = 1364,
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STR_IN_LINE_TWIST_LEFT = 1365,
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STR_IN_LINE_TWIST_RIGHT = 1366,
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514
src/world/map.c
514
src/world/map.c
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@ -1667,6 +1667,265 @@ const uint8 map_element_lower_styles[5][32] = {
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{ 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x00, 0x00, 0x00, 0x0B, 0x00, 0x0D, 0x0E, 0x00 },
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};
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//Hack: pushes variables to the stack before jumping to address
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//These functions are temporary and are used for debugging the decompiled code.
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static int callcode_push3(int address, int stackvar1, int stackvar2, int stackvar3, int *_eax, int *_ebx, int *_ecx, int *_edx, int *_esi, int *_edi, int *_ebp)
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{
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int result;
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__asm__ ( "\
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\n\
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/* Store C's base pointer*/ \n\
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push %%ebp \n\
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push %%ebx \n\
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\n\
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/* Store %[address] to call*/ \n\
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push %[address] \n\
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\n\
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/* Set all registers to the input values*/ \n\
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mov %[_eax], %%eax \n\
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mov (%%eax), %%eax \n\
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mov %[_ebx], %%ebx \n\
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mov (%%ebx), %%ebx \n\
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mov %[_ecx], %%ecx \n\
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mov (%%ecx), %%ecx \n\
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mov %[_edx], %%edx \n\
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mov (%%edx), %%edx \n\
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mov %[_esi], %%esi \n\
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mov (%%esi), %%esi \n\
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mov %[_edi], %%edi \n\
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mov (%%edi), %%edi \n\
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push $_foo \n\
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push %[stackvar1] \n\
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push %[stackvar2] \n\
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push %[stackvar3] \n\
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mov %[_ebp], %%ebp \n\
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mov (%%ebp), %%ebp \n\
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\n\
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/* Call function*/ \n\
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/* Push registers required by function */ \n\
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/* call *(%%esp) */ \n\
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jmp *16(%%esp) \n\
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_foo: \n\
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\n\
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/* Store output eax */ \n\
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push %%eax \n\
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push %%ebp \n\
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push %%ebx \n\
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mov 20(%%esp), %%ebp \n\
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mov 16(%%esp), %%ebx \n\
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/* Get resulting ecx, edx, esi, edi registers*/ \n\
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mov %[_edi], %%eax \n\
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mov %%edi, (%%eax) \n\
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mov %[_esi], %%eax \n\
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mov %%esi, (%%eax) \n\
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mov %[_edx], %%eax \n\
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mov %%edx, (%%eax) \n\
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mov %[_ecx], %%eax \n\
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mov %%ecx, (%%eax) \n\
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/* Pop ebx reg into ecx*/ \n\
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pop %%ecx \n\
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mov %[_ebx], %%eax \n\
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mov %%ecx, (%%eax) \n\
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\n\
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/* Pop ebp reg into ecx */\n\
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pop %%ecx \n\
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mov %[_ebp], %%eax \n\
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mov %%ecx, (%%eax) \n\
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\n\
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pop %%eax \n\
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/* Get resulting eax register*/ \n\
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mov %[_eax], %%ecx \n\
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mov %%eax, (%%ecx) \n\
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\n\
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/* Save flags as return in eax*/ \n\
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lahf \n\
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/* Pop address*/ \n\
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pop %%ebp \n\
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\n\
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pop %%ebx \n\
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pop %%ebp \n\
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/* Load result with flags */ \n\
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mov %%eax, %[result] \n\
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" : [address] "+m" (address), [_eax] "+m" (_eax), [_ebx] "+m" (_ebx), [_ecx] "+m" (_ecx), [_edx] "+m" (_edx), [_esi] "+m" (_esi), [_edi] "+m" (_edi), [_ebp] "+m" (_ebp), [result] "+m" (result)
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: [stackvar1] "m" (stackvar1), [stackvar2] "m" (stackvar2), [stackvar3] "m" (stackvar3)
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: "eax","ecx","edx","esi","edi"
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);
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return result&0xFF00;
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}
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static int callcode_push2(int address, int stackvar1, int stackvar2, int *_eax, int *_ebx, int *_ecx, int *_edx, int *_esi, int *_edi, int *_ebp)
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{
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int result;
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__asm__ ( "\
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\n\
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/* Store C's base pointer*/ \n\
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push %%ebp \n\
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push %%ebx \n\
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\n\
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/* Store %[address] to call*/ \n\
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push %[address] \n\
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\n\
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/* Set all registers to the input values*/ \n\
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mov %[_eax], %%eax \n\
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mov (%%eax), %%eax \n\
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mov %[_ebx], %%ebx \n\
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mov (%%ebx), %%ebx \n\
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mov %[_ecx], %%ecx \n\
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mov (%%ecx), %%ecx \n\
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mov %[_edx], %%edx \n\
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mov (%%edx), %%edx \n\
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mov %[_esi], %%esi \n\
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mov (%%esi), %%esi \n\
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mov %[_edi], %%edi \n\
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mov (%%edi), %%edi \n\
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push $foo \n\
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push %[stackvar1] \n\
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push %[stackvar2] \n\
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mov %[_ebp], %%ebp \n\
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mov (%%ebp), %%ebp \n\
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\n\
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/* Call function*/ \n\
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/* Push registers required by function */ \n\
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/* call *(%%esp) */ \n\
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jmp *12(%%esp) \n\
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foo: \n\
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\n\
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/* Store output eax */ \n\
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push %%eax \n\
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push %%ebp \n\
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push %%ebx \n\
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mov 20(%%esp), %%ebp \n\
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mov 16(%%esp), %%ebx \n\
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/* Get resulting ecx, edx, esi, edi registers*/ \n\
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mov %[_edi], %%eax \n\
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mov %%edi, (%%eax) \n\
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mov %[_esi], %%eax \n\
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mov %%esi, (%%eax) \n\
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mov %[_edx], %%eax \n\
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mov %%edx, (%%eax) \n\
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mov %[_ecx], %%eax \n\
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mov %%ecx, (%%eax) \n\
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/* Pop ebx reg into ecx*/ \n\
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pop %%ecx \n\
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mov %[_ebx], %%eax \n\
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mov %%ecx, (%%eax) \n\
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\n\
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/* Pop ebp reg into ecx */\n\
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pop %%ecx \n\
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mov %[_ebp], %%eax \n\
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mov %%ecx, (%%eax) \n\
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\n\
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pop %%eax \n\
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/* Get resulting eax register*/ \n\
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mov %[_eax], %%ecx \n\
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mov %%eax, (%%ecx) \n\
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\n\
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/* Save flags as return in eax*/ \n\
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lahf \n\
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/* Pop address*/ \n\
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pop %%ebp \n\
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\n\
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pop %%ebx \n\
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pop %%ebp \n\
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/* Load result with flags */ \n\
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mov %%eax, %[result] \n\
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" : [address] "+m" (address), [_eax] "+m" (_eax), [_ebx] "+m" (_ebx), [_ecx] "+m" (_ecx), [_edx] "+m" (_edx), [_esi] "+m" (_esi), [_edi] "+m" (_edi), [_ebp] "+m" (_ebp), [result] "+m" (result)
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: [stackvar1] "m" (stackvar1), [stackvar2] "m" (stackvar2)
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: "eax","ecx","edx","esi","edi"
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);
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return result&0xFF00;
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}
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static int callcode_push1(int address, int stackvar, int *_eax, int *_ebx, int *_ecx, int *_edx, int *_esi, int *_edi, int *_ebp)
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{
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int result;
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__asm__ ( "\
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\n\
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/* Store C's base pointer*/ \n\
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push %%ebp \n\
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push %%ebx \n\
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\n\
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/* Store %[address] to call*/ \n\
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push %[address] \n\
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\n\
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/* Set all registers to the input values*/ \n\
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mov %[_eax], %%eax \n\
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mov (%%eax), %%eax \n\
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mov %[_ebx], %%ebx \n\
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mov (%%ebx), %%ebx \n\
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mov %[_ecx], %%ecx \n\
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mov (%%ecx), %%ecx \n\
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mov %[_edx], %%edx \n\
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mov (%%edx), %%edx \n\
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mov %[_esi], %%esi \n\
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mov (%%esi), %%esi \n\
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mov %[_edi], %%edi \n\
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mov (%%edi), %%edi \n\
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/* Hack: called code should return back to this function */ \n\
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push $__foo \n\
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/* Push variable */\n\
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push %[stackvar] \n\
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mov %[_ebp], %%ebp \n\
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mov (%%ebp), %%ebp \n\
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\n\
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/* Call function*/ \n\
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/* call *(%%esp) */ \n\
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/* int $3 */\n\
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jmp *8(%%esp) \n\
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__foo: \n\
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\n\
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/* Store output eax */ \n\
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push %%eax \n\
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push %%ebp \n\
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push %%ebx \n\
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mov 20(%%esp), %%ebp \n\
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mov 16(%%esp), %%ebx \n\
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/* Get resulting ecx, edx, esi, edi registers*/ \n\
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mov %[_edi], %%eax \n\
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mov %%edi, (%%eax) \n\
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mov %[_esi], %%eax \n\
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mov %%esi, (%%eax) \n\
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mov %[_edx], %%eax \n\
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mov %%edx, (%%eax) \n\
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mov %[_ecx], %%eax \n\
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mov %%ecx, (%%eax) \n\
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/* Pop ebx reg into ecx*/ \n\
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pop %%ecx \n\
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mov %[_ebx], %%eax \n\
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mov %%ecx, (%%eax) \n\
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\n\
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/* Pop ebp reg into ecx */\n\
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pop %%ecx \n\
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mov %[_ebp], %%eax \n\
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mov %%ecx, (%%eax) \n\
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\n\
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pop %%eax \n\
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/* Get resulting eax register*/ \n\
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mov %[_eax], %%ecx \n\
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mov %%eax, (%%ecx) \n\
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\n\
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/* Save flags as return in eax*/ \n\
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lahf \n\
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/* Pop address*/ \n\
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pop %%ebp \n\
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\n\
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pop %%ebx \n\
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pop %%ebp \n\
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/* Load result with flags */ \n\
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mov %%eax, %[result] \n\
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" : [address] "+m" (address), [_eax] "+m" (_eax), [_ebx] "+m" (_ebx), [_ecx] "+m" (_ecx), [_edx] "+m" (_edx), [_esi] "+m" (_esi), [_edi] "+m" (_edi), [_ebp] "+m" (_ebp), [result] "+m" (result)
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: [stackvar] "m" (stackvar)
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: "eax","ecx","edx","esi","edi"
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);
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return result&0xFF00;
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}
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static money32 map_set_land_height(int flags, int x, int y, int height, int style, int selectionType)
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{
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if (RCT2_GLOBAL(RCT2_ADDRESS_GAME_PAUSED, uint8) != 0 && !gConfigCheat.build_in_pause_mode) {
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@ -1709,10 +1968,261 @@ static money32 map_set_land_height(int flags, int x, int y, int height, int styl
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return MONEY32_UNDEFINED;
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}
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}
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/* Continuing dissassembly - work in progress
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* Known bugs:
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* Raising the corner of a piece of land doesn't remove walls.
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* Small scenery elements (ones that take up 1/4 of a tile) are not removed when changing land height.
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* Original bugs:
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* Lowering the land tile underneath a wall removes the wall.
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* Land can be raised over flat scenery items (gardens, for example) without removing them.
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*/
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int eax = x, ebx = flags, ecx = y, edi = selectionType << 5, ebp = 0;
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uint32 edx = (style << 8) | height;
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uint32 esi = 0;
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//Uncomment to use vanilla code
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//RCT2_CALLFUNC_X(0x006639FE, &eax, &ebx, &ecx, (int *)&edx, (int *)&esi, &edi, &ebp); return ebx;
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RCT2_GLOBAL(0x9E2E18, uint32) = 0;
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if(ebx&GAME_COMMAND_FLAG_APPLY)
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{
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footpath_remove_litter(eax, ebx, map_element_height(eax, ecx));
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//Hmmm... I have a bug in here where raising the corner of a tile doesn't remove walls on it.
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map_remove_walls_at(eax, ecx, edx*8-16, edx*8+32);
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}
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RCT2_GLOBAL(0x9E2E18, uint32) += 0xC8;
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//RCT2_CALLFUNC_X(0x663A3A, &eax, &ebx, &ecx, (int *)&edx, (int *)&esi, &edi, &ebp); return ebx;
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int saved_eax = eax;
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int saved_ecx = ecx;
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unsigned int saved_edx = edx;
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/*
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esi = ecx&0xFFFF; //movzx esi, cx
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esi <<= 8;
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esi |= eax;
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esi >>= 3;
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esi = RCT2_ADDRESS(RCT2_ADDRESS_TILE_MAP_ELEMENT_POINTERS, uint32)[(int)esi/4];
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*/
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esi = (int)map_get_first_element_at(eax/32, ecx/32);
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uint8 *pdl = (uint8 *)&edx;
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uint8 *pdh = (uint8 *)&edx+1;
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uint8 *pbl = (uint8 *)&ebx;
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uint8 *pbh = (uint8 *)&ebx+1;
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*pdh = *pdl;
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*pdh += 4;
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loc_663A54:
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eax = map_element_get_type((rct_map_element *)esi);
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if(eax!=MAP_ELEMENT_TYPE_SCENERY)
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goto loc_663AA3;
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if(*pdl>((rct_map_element *)esi)->clearance_height)
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goto loc_663AA3;
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if(*pdh<((rct_map_element *)esi)->base_height)
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goto loc_663AA3;
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eax = ((rct_map_element *)esi)->properties.scenery.type;
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eax = RCT2_ADDRESS(RCT2_ADDRESS_SMALL_SCENERY_ENTRIES, uint32)[eax];
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if(((rct_scenery_entry *)eax)->small_scenery.height>0x40) //cmp byte ptr [eax+0Ah], 40h; jbe short loc_663A87
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{
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if(RCT2_GLOBAL(RCT2_ADDRESS_PARK_FLAGS, uint32)&PARK_FLAGS_FORBID_TREE_REMOVAL)
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{
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//rct2: 0x663C45
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map_obstruction_set_error_text((rct_map_element *)esi);
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return MONEY32_UNDEFINED;
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}
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}
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//rct2: 0x663A87
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//callcode_push3(0x663A87, saved_eax, saved_ecx, saved_edx, &eax, &ebx, &ecx, (int *)&edx, (int *)&esi, &edi, &ebp); return ebx;
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ecx = ((rct_scenery_entry *)eax)->small_scenery.removal_price*10;
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RCT2_GLOBAL(0x9E2E18, uint32) += ecx;
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//rct2: 0x663A94
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if((ebx&GAME_COMMAND_FLAG_APPLY))
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{
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map_element_remove((rct_map_element *)esi);
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esi = esi-8;
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}
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loc_663AA3:
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esi = esi+8;
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if(!((*(uint8 *)esi-7)&MAP_ELEMENT_FLAG_LAST_TILE))
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goto loc_663A54;
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edx = saved_edx;
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ecx = saved_ecx;
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eax = saved_eax;
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saved_eax = eax;
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int saved_ebx = ebx;
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saved_ecx = ecx;
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//callcode_push3(0x663AB2, saved_eax, saved_ebx, saved_ecx, &eax, &ebx, &ecx, (int *)&edx, (int *)&esi, &edi, &ebp); return ebx;
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/*
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esi = ecx&0xFFFF; //movzx esi, cx
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esi <<= 8;
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esi |= eax&0xFFFF; //or si, ax
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esi >>= 3;
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esi = RCT2_ADDRESS(RCT2_ADDRESS_TILE_MAP_ELEMENT_POINTERS, uint32)[esi/4];
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*/
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esi = (int)map_get_first_element_at(eax/32, ecx/32);
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//callcode_push3(0x663AC4, saved_eax, saved_ebx, saved_ecx, &eax, &ebx, &ecx, (int *)&edx, (int *)&esi, &edi, &ebp); return ebx;
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loc_663AC4:
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eax = ((rct_map_element *)esi)->type;
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eax &= 0x3C;
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if(eax==8)
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{
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ebp = ((rct_map_element *)esi)->properties.track.ride_index; //not sure what union member we need here. [esi+7]
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ebp *= 0x260;
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eax = RCT2_ADDRESS(RCT2_ADDRESS_RIDE_LIST, rct_ride)[ebp/0x260].subtype;
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eax = RCT2_ADDRESS(RCT2_ADDRESS_RIDE_ENTRIES, uint32)[eax];
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eax = ((rct_ride_type *)eax)->max_height;
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if(eax==0)
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{
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eax = RCT2_ADDRESS(RCT2_ADDRESS_RIDE_LIST, rct_ride)[ebp/0x260].type;
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eax = RCT2_GLOBAL(0x97D218+eax*8, uint8);
|
||||
}
|
||||
//rct2: 0x663AFC
|
||||
ebx = ((rct_map_element *)esi)->clearance_height;
|
||||
ebx -= *pdl;
|
||||
if(ebx>=0)
|
||||
{
|
||||
ebx >>= 1;
|
||||
if(ebx>eax)
|
||||
{
|
||||
//rct2: 0x663B09
|
||||
RCT2_GLOBAL(RCT2_ADDRESS_GAME_COMMAND_ERROR_TEXT, rct_string_id) = STR_SUPPORTS_CANT_BE_EXTENDED;
|
||||
return MONEY32_UNDEFINED;
|
||||
}
|
||||
}
|
||||
}
|
||||
loc_663B1A:
|
||||
esi += 8;
|
||||
if(!((*(uint8 *)esi-7)&MAP_ELEMENT_FLAG_LAST_TILE))
|
||||
goto loc_663AC4;
|
||||
|
||||
ecx = saved_ecx;
|
||||
ebx = saved_ebx;
|
||||
eax = saved_eax;
|
||||
saved_ecx = ecx;
|
||||
|
||||
//callcode_push1(0x663B27, saved_ecx, &eax, &ebx, &ecx, (int *)&edx, (int *)&esi, &edi, &ebp); return ebx;
|
||||
|
||||
esi = ecx&0xFFFF;
|
||||
esi <<= 8;
|
||||
esi |= eax&0xFFFF;
|
||||
esi >>= 3;
|
||||
esi = RCT2_ADDRESS(RCT2_ADDRESS_TILE_MAP_ELEMENT_POINTERS, uint32)[esi/4];
|
||||
|
||||
//callcode_push1(0x663B39, saved_ecx, &eax, &ebx, &ecx, (int *)&edx, (int *)&esi, &edi, &ebp); return ebx;
|
||||
|
||||
while((((rct_map_element *)esi)->type&0x3C))
|
||||
esi += 8;
|
||||
if(!((rct_map_element *)esi)->type&0x40)
|
||||
goto loc_663B72;
|
||||
ecx = *((uint8 *)esi+5); //Don't know which union member to use yet.
|
||||
ecx &= 0x1F;
|
||||
if(ecx==0)
|
||||
goto loc_663B72;
|
||||
ecx <<= 1;
|
||||
ecx -= 2;
|
||||
*pbh = *pdl;
|
||||
if((*pdh&0x1F))
|
||||
{
|
||||
*pbh += 2;
|
||||
if((*pdh&0x10))
|
||||
{
|
||||
*pbh += 2;
|
||||
}
|
||||
}
|
||||
loc_663B6A:
|
||||
if(*pbh>ecx)
|
||||
{
|
||||
//rct2: 0x663C5A
|
||||
ecx = saved_ecx;
|
||||
esi += 8;
|
||||
map_obstruction_set_error_text((rct_map_element *)esi);
|
||||
return MONEY32_UNDEFINED;
|
||||
}
|
||||
loc_663B72:
|
||||
ecx = saved_ecx;
|
||||
|
||||
//RCT2_CALLFUNC_X(0x663B73, &eax, &ebx, &ecx, (int *)&edx, (int *)&esi, &edi, &ebp); return ebx;
|
||||
|
||||
int eax = x, ebx = flags, ecx = y, edx = (style << 8) | height, esi = 0, edi = selectionType << 5, ebp = 0;
|
||||
RCT2_CALLFUNC_X(0x006639FE, &eax, &ebx, &ecx, &edx, &esi, &edi, &ebp);
|
||||
*pbh = *pdl;
|
||||
if((*pdh&0xF))
|
||||
{
|
||||
*pbh += 2;
|
||||
if((*pdh&0x10))
|
||||
{
|
||||
*pbh += 2;
|
||||
}
|
||||
}
|
||||
loc_663B85:
|
||||
saved_ebx = ebx;
|
||||
saved_edx = edx;
|
||||
int saved_ebp = ebp;
|
||||
|
||||
//callcode_push3(0x663B88, saved_ebx, saved_edx, saved_ebp, &eax, &ebx, &ecx, (int *)&edx, (int *)&esi, &edi, &ebp); return ebx;
|
||||
|
||||
*pbl = *pdh;
|
||||
*pdh = *pbh;
|
||||
*pbl = 0xF;
|
||||
ebp = (int)RCT2_ADDRESS(0x663CB9, void);
|
||||
if(map_can_construct_with_clear_at(eax&0xFFFF, ecx&0xFFFF, *pdl, *pdh, (void *)ebp, *pbl)==false)
|
||||
return MONEY32_UNDEFINED;
|
||||
ebp = saved_ebp;
|
||||
edx = saved_edx;
|
||||
ebx = saved_ebx;
|
||||
saved_eax = eax;
|
||||
saved_ecx = ecx;
|
||||
|
||||
//callcode_push2(0x663BA3, saved_eax, saved_ecx, &eax, &ebx, &ecx, (int *)&edx, (int *)&esi, &edi, &ebp); return ebx;
|
||||
|
||||
edi = ecx&0xFFFF;
|
||||
edi <<= 8;
|
||||
edi = (edi|eax)&0xFFFF;
|
||||
edi >>= 3;
|
||||
edi = (uint32)RCT2_ADDRESS(RCT2_ADDRESS_TILE_MAP_ELEMENT_POINTERS, rct_map_element *)[edi/4];
|
||||
loc_663BB5:
|
||||
//callcode_push2(0x663BB5, saved_eax, saved_ecx, &eax, &ebx, &ecx, (int *)&edx, (int *)&esi, &edi, &ebp); return ebx;
|
||||
eax = ((rct_map_element *)edi)->type;
|
||||
eax &= 0x3C;
|
||||
if(eax==0x14)
|
||||
goto loc_663BD9;
|
||||
if(eax==0xC)
|
||||
goto loc_663BD9;
|
||||
if(((rct_map_element *)edi)->flags&0x10)
|
||||
goto loc_663BD9;
|
||||
if(edi==esi)
|
||||
goto loc_663BD9;
|
||||
if(edi>esi)
|
||||
goto loc_663BD4;
|
||||
if(*pdl<((rct_map_element *)edi)->clearance_height)
|
||||
goto loc_663C4F;
|
||||
goto loc_663BD9;
|
||||
loc_663BD4:
|
||||
if(*pbh>((rct_map_element *)edi)->base_height)
|
||||
goto loc_663C4F;
|
||||
loc_663BD9:
|
||||
edi += 8;
|
||||
if(!(*((uint8 *)edi-7)&MAP_ELEMENT_FLAG_LAST_TILE))
|
||||
goto loc_663BB5;
|
||||
ecx = saved_ecx;
|
||||
eax = saved_eax;
|
||||
|
||||
//To be continued...
|
||||
RCT2_CALLFUNC_X(0x663BE4, &eax, &ebx, &ecx, (int *)&edx, (int *)&esi, &edi, &ebp);
|
||||
return ebx;
|
||||
|
||||
loc_663C4F:
|
||||
esi = edi;
|
||||
map_obstruction_set_error_text((rct_map_element *)esi);
|
||||
return MONEY32_UNDEFINED;
|
||||
}
|
||||
|
||||
void game_command_set_land_height(int *eax, int *ebx, int *ecx, int *edx, int *esi, int *edi, int *ebp)
|
||||
|
|
|
|||
Loading…
Reference in New Issue