So all i need to know is if that line intersects with the triangle.
I have found a game function that tests this but i cannot figure out how to call it even though it appears i am doing it correctly. I get access violations.
4 replies to this topic
#1
mre521
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Posted 24 September 2009 - 01:55 AM
OK, i have a 2D game that I have made an aimbot for and it works perfectly. My only problem is that i don't know how to test if the target player is behind a map polygon. Basically what I mean is i don't know how to test if i can hit them with a perfectly straight shot from where my player is. Image:
So all i need to know is if that line intersects with the triangle.
I have found a game function that tests this but i cannot figure out how to call it even though it appears i am doing it correctly. I get access violations.
So all i need to know is if that line intersects with the triangle.
I have found a game function that tests this but i cannot figure out how to call it even though it appears i am doing it correctly. I get access violations.
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#2
trouble
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Posted 24 September 2009 - 05:23 AM
even though it appears i am doing it correctly. I get access violations.
How about you show us how you've called it and what this function looks like. Right now it we'd just he shooting in the dark as to what is wrong.
#3
mre521
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Posted 25 September 2009 - 02:16 AM
Here is the info on that function:
function at 005070d8
ecx always is 6(unknown)
edx always is 0012FC0Ch(unknown)
eax always is 0012FC14h(unknown)
esi is the base of the target
ebx is the base of the local player
stack args are pushed as follows:
push 0012FBF0
push 000003E9
the args are also unknowns.
Here is the function ASM if anyone wants to try to guess why im failing:
function at 005070d8
ecx always is 6(unknown)
edx always is 0012FC0Ch(unknown)
eax always is 0012FC14h(unknown)
esi is the base of the target
ebx is the base of the local player
stack args are pushed as follows:
push 0012FBF0
push 000003E9
the args are also unknowns.
Here is the function ASM if anyone wants to try to guess why im failing:
005070D8 /$ 55 PUSH EBP 005070D9 |. 8BEC MOV EBP,ESP 005070DB |. 83C4 B4 ADD ESP,-4C 005070DE |. 53 PUSH EBX 005070DF |. 56 PUSH ESI 005070E0 |. 57 PUSH EDI 005070E1 |. 8BF2 MOV ESI,EDX 005070E3 |. 8D7D F0 LEA EDI,DWORD PTR SS:[EBP-10] 005070E6 |. A5 MOVS DWORD PTR ES:[EDI],DWORD PTR DS:[ESI] 005070E7 |. A5 MOVS DWORD PTR ES:[EDI],DWORD PTR DS:[ESI] 005070E8 |. 8BF0 MOV ESI,EAX 005070EA |. 8D7D F8 LEA EDI,DWORD PTR SS:[EBP-8] 005070ED |. A5 MOVS DWORD PTR ES:[EDI],DWORD PTR DS:[ESI] 005070EE |. A5 MOVS DWORD PTR ES:[EDI],DWORD PTR DS:[ESI] 005070EF |. 8BF9 MOV EDI,ECX 005070F1 |. 8B75 0C MOV ESI,DWORD PTR SS:[EBP+C] 005070F4 |. 8B1D 78E05C00 MOV EBX,DWORD PTR DS:[5CE078] ; Soldat.005D5E30 005070FA |. C645 EF 00 MOV BYTE PTR SS:[EBP-11],0 005070FE |. 8D4D E0 LEA ECX,DWORD PTR SS:[EBP-20] 00507101 |. 8D55 F0 LEA EDX,DWORD PTR SS:[EBP-10] 00507104 |. 8D45 F8 LEA EAX,DWORD PTR SS:[EBP-8] 00507107 |. E8 DC52F9FF CALL Soldat.0049C3E8 0050710C |. 8D45 E0 LEA EAX,DWORD PTR SS:[EBP-20] 0050710F |. E8 8052F9FF CALL Soldat.0049C394 00507114 |. D91E FSTP DWORD PTR DS:[ESI] 00507116 |. 9B WAIT 00507117 |. DB45 08 FILD DWORD PTR SS:[EBP+8] 0050711A |. D81E FCOMP DWORD PTR DS:[ESI] 0050711C |. DFE0 FSTSW AX 0050711E |. 9E SAHF 0050711F |. 73 0F JNB SHORT Soldat.00507130 00507121 |. C706 7F96184B MOV DWORD PTR DS:[ESI],4B18967F 00507127 |. C645 EF 01 MOV BYTE PTR SS:[EBP-11],1 0050712B |. E9 2E020000 JMP Soldat.0050735E 00507130 |> D906 FLD DWORD PTR DS:[ESI] 00507132 |. D81D 6C735000 FCOMP DWORD PTR DS:[50736C] 00507138 |. DFE0 FSTSW AX 0050713A |. 9E SAHF 0050713B |. 73 13 JNB SHORT Soldat.00507150 0050713D |. 897D BC MOV DWORD PTR SS:[EBP-44],EDI 00507140 |. DB45 BC FILD DWORD PTR SS:[EBP-44] 00507143 |. D835 70735000 FDIV DWORD PTR DS:[507370] 00507149 |. E8 36BBEFFF CALL Soldat.00402C84 0050714E |. 8BF8 MOV EDI,EAX 00507150 |> D906 FLD DWORD PTR DS:[ESI] 00507152 |. D81D 74735000 FCOMP DWORD PTR DS:[507374] 00507158 |. DFE0 FSTSW AX 0050715A |. 9E SAHF 0050715B |. 76 13 JBE SHORT Soldat.00507170 0050715D |. 897D BC MOV DWORD PTR SS:[EBP-44],EDI 00507160 |. DB45 BC FILD DWORD PTR SS:[EBP-44] 00507163 |. D80D 70735000 FMUL DWORD PTR DS:[507370] 00507169 |. E8 16BBEFFF CALL Soldat.00402C84 0050716E |. 8BF8 MOV EDI,EAX 00507170 |> 897D BC MOV DWORD PTR SS:[EBP-44],EDI 00507173 |. DB45 BC FILD DWORD PTR SS:[EBP-44] 00507176 |. D83D 78735000 FDIVR DWORD PTR DS:[507378] 0050717C |. 83C4 FC ADD ESP,-4 0050717F |. D91C24 FSTP DWORD PTR SS:[ESP] ; /Arg1 00507182 |. 9B WAIT ; | 00507183 |. 8D55 E0 LEA EDX,DWORD PTR SS:[EBP-20] ; | 00507186 |. 8D45 D8 LEA EAX,DWORD PTR SS:[EBP-28] ; | 00507189 |. E8 6E52F9FF CALL Soldat.0049C3FC ; \Soldat.0049C3FC 0050718E |. 8D45 E0 LEA EAX,DWORD PTR SS:[EBP-20] 00507191 |. 50 PUSH EAX 00507192 |. 8D45 C8 LEA EAX,DWORD PTR SS:[EBP-38] 00507195 |. 50 PUSH EAX 00507196 |. E8 7D52F9FF CALL Soldat.0049C418 ; JMP to d3dx81ab.D3DXVec2Normalize 0050719B |. 68 0000A041 PUSH 41A00000 ; /Arg1 = 41A00000 005071A0 |. 8D55 C8 LEA EDX,DWORD PTR SS:[EBP-38] ; | 005071A3 |. 8D45 C8 LEA EAX,DWORD PTR SS:[EBP-38] ; | 005071A6 |. E8 5152F9FF CALL Soldat.0049C3FC ; \Soldat.0049C3FC 005071AB |. 8D4D B4 LEA ECX,DWORD PTR SS:[EBP-4C] 005071AE |. 8D55 C8 LEA EDX,DWORD PTR SS:[EBP-38] 005071B1 |. 8D45 F8 LEA EAX,DWORD PTR SS:[EBP-8] 005071B4 |. E8 1B52F9FF CALL Soldat.0049C3D4 005071B9 |. 8B45 B4 MOV EAX,DWORD PTR SS:[EBP-4C] 005071BC |. 8945 F8 MOV DWORD PTR SS:[EBP-8],EAX 005071BF |. 8B45 B8 MOV EAX,DWORD PTR SS:[EBP-48] 005071C2 |. 8945 FC MOV DWORD PTR SS:[EBP-4],EAX 005071C5 |. 4F DEC EDI 005071C6 |. 85FF TEST EDI,EDI 005071C8 |. 0F8C 90010000 JL Soldat.0050735E 005071CE |. 47 INC EDI 005071CF |. 897D C4 MOV DWORD PTR SS:[EBP-3C],EDI 005071D2 |. 33FF XOR EDI,EDI 005071D4 |> 897D BC /MOV DWORD PTR SS:[EBP-44],EDI 005071D7 |. DB45 BC |FILD DWORD PTR SS:[EBP-44] 005071DA |. D84D D8 |FMUL DWORD PTR SS:[EBP-28] 005071DD |. D845 F0 |FADD DWORD PTR SS:[EBP-10] 005071E0 |. D95D D0 |FSTP DWORD PTR SS:[EBP-30] 005071E3 |. 9B |WAIT 005071E4 |. 897D BC |MOV DWORD PTR SS:[EBP-44],EDI 005071E7 |. DB45 BC |FILD DWORD PTR SS:[EBP-44] 005071EA |. D84D DC |FMUL DWORD PTR SS:[EBP-24] 005071ED |. D845 F4 |FADD DWORD PTR SS:[EBP-C] 005071F0 |. D95D D4 |FSTP DWORD PTR SS:[EBP-2C] 005071F3 |. 9B |WAIT 005071F4 |. DB83 24DB0800 |FILD DWORD PTR DS:[EBX+8DB24] 005071FA |. D87D D0 |FDIVR DWORD PTR SS:[EBP-30] 005071FD |. E8 82BAEFFF |CALL Soldat.00402C84 00507202 |. 83FA FF |CMP EDX,-1 00507205 |. 75 0B |JNZ SHORT Soldat.00507212 00507207 |. 83F8 DD |CMP EAX,-23 0050720A |. 0F86 44010000 |JBE Soldat.00507354 00507210 |. EB 06 |JMP SHORT Soldat.00507218 00507212 |> 0F8E 3C010000 |JLE Soldat.00507354 00507218 |> DB83 24DB0800 |FILD DWORD PTR DS:[EBX+8DB24] 0050721E |. D87D D0 |FDIVR DWORD PTR SS:[EBP-30] 00507221 |. E8 5EBAEFFF |CALL Soldat.00402C84 00507226 |. 83FA 00 |CMP EDX,0 00507229 |. 75 0B |JNZ SHORT Soldat.00507236 0050722B |. 83F8 23 |CMP EAX,23 0050722E |. 0F83 20010000 |JNB Soldat.00507354 00507234 |. EB 06 |JMP SHORT Soldat.0050723C 00507236 |> 0F8D 18010000 |JGE Soldat.00507354 0050723C |> DB83 24DB0800 |FILD DWORD PTR DS:[EBX+8DB24] 00507242 |. D87D D4 |FDIVR DWORD PTR SS:[EBP-2C] 00507245 |. E8 3ABAEFFF |CALL Soldat.00402C84 0050724A |. 83FA FF |CMP EDX,-1 0050724D |. 75 0B |JNZ SHORT Soldat.0050725A 0050724F |. 83F8 DD |CMP EAX,-23 00507252 |. 0F86 FC000000 |JBE Soldat.00507354 00507258 |. EB 06 |JMP SHORT Soldat.00507260 0050725A |> 0F8E F4000000 |JLE Soldat.00507354 00507260 |> DB83 24DB0800 |FILD DWORD PTR DS:[EBX+8DB24] 00507266 |. D87D D4 |FDIVR DWORD PTR SS:[EBP-2C] 00507269 |. E8 16BAEFFF |CALL Soldat.00402C84 0050726E |. 83FA 00 |CMP EDX,0 00507271 |. 75 0B |JNZ SHORT Soldat.0050727E 00507273 |. 83F8 23 |CMP EAX,23 00507276 |. 0F83 D8000000 |JNB Soldat.00507354 0050727C |. EB 06 |JMP SHORT Soldat.00507284 0050727E |> 0F8D D0000000 |JGE Soldat.00507354 00507284 |> DB83 24DB0800 |FILD DWORD PTR DS:[EBX+8DB24] 0050728A |. D87D D0 |FDIVR DWORD PTR SS:[EBP-30] 0050728D |. E8 F2B9EFFF |CALL Soldat.00402C84 00507292 |. 6BC0 47 |IMUL EAX,EAX,47 00507295 |. 8D04C3 |LEA EAX,DWORD PTR DS:[EBX+EAX*8] 00507298 |. 50 |PUSH EAX 00507299 |. DB83 24DB0800 |FILD DWORD PTR DS:[EBX+8DB24] 0050729F |. D87D D4 |FDIVR DWORD PTR SS:[EBP-2C] 005072A2 |. E8 DDB9EFFF |CALL Soldat.00402C84 005072A7 |. 5A |POP EDX 005072A8 |. 66:8BB4C2 608C>|MOV SI,WORD PTR DS:[EDX+EAX*8+88C60] 005072B0 |. 66:85F6 |TEST SI,SI 005072B3 |. 0F86 9B000000 |JBE Soldat.00507354 005072B9 |. DB83 24DB0800 |FILD DWORD PTR DS:[EBX+8DB24] 005072BF |. D87D D0 |FDIVR DWORD PTR SS:[EBP-30] 005072C2 |. E8 BDB9EFFF |CALL Soldat.00402C84 005072C7 |. 6BC0 47 |IMUL EAX,EAX,47 005072CA |. 8D04C3 |LEA EAX,DWORD PTR DS:[EBX+EAX*8] 005072CD |. 50 |PUSH EAX 005072CE |. DB83 24DB0800 |FILD DWORD PTR DS:[EBX+8DB24] 005072D4 |. D87D D4 |FDIVR DWORD PTR SS:[EBP-2C] 005072D7 |. E8 A8B9EFFF |CALL Soldat.00402C84 005072DC |. 5A |POP EDX 005072DD |. 0FB7C6 |MOVZX EAX,SI 005072E0 |. 85C0 |TEST EAX,EAX 005072E2 |. 7E 70 |JLE SHORT Soldat.00507354 005072E4 |. 8945 C0 |MOV DWORD PTR SS:[EBP-40],EAX 005072E7 |. C745 E8 010000>|MOV DWORD PTR SS:[EBP-18],1 005072EE |> DB83 24DB0800 |/FILD DWORD PTR DS:[EBX+8DB24] 005072F4 |. D87D D0 ||FDIVR DWORD PTR SS:[EBP-30] 005072F7 |. E8 88B9EFFF ||CALL Soldat.00402C84 005072FC |. 6BC0 47 ||IMUL EAX,EAX,47 005072FF |. 8D04C3 ||LEA EAX,DWORD PTR DS:[EBX+EAX*8] 00507302 |. 50 ||PUSH EAX 00507303 |. DB83 24DB0800 ||FILD DWORD PTR DS:[EBX+8DB24] 00507309 |. D87D D4 ||FDIVR DWORD PTR SS:[EBP-2C] 0050730C |. E8 73B9EFFF ||CALL Soldat.00402C84 00507311 |. 5A ||POP EDX 00507312 |. 8B84C2 5C8C080>||MOV EAX,DWORD PTR DS:[EDX+EAX*8+88C5C] 00507319 |. 8B55 E8 ||MOV EDX,DWORD PTR SS:[EBP-18] 0050731C |. 0FB73450 ||MOVZX ESI,WORD PTR DS:[EAX+EDX*2] 00507320 |. 8A8433 7FDC080>||MOV AL,BYTE PTR DS:[EBX+ESI+8DC7F] 00507327 |. 3C 03 ||CMP AL,3 00507329 |. 74 21 ||JE SHORT Soldat.0050734C 0050732B |. 3C 01 ||CMP AL,1 0050732D |. 74 1D ||JE SHORT Soldat.0050734C 0050732F |. 3C 02 ||CMP AL,2 00507331 |. 74 19 ||JE SHORT Soldat.0050734C 00507333 |. FF75 D0 ||PUSH DWORD PTR SS:[EBP-30] ; /Arg2 00507336 |. FF75 D4 ||PUSH DWORD PTR SS:[EBP-2C] ; |Arg1 00507339 |. 8BC3 ||MOV EAX,EBX ; | 0050733B |. 8BD6 ||MOV EDX,ESI ; | 0050733D |. E8 0A220400 ||CALL Soldat.0054954C ; \Soldat.0054954C 00507342 |. 84C0 ||TEST AL,AL 00507344 |. 74 06 ||JE SHORT Soldat.0050734C 00507346 |. C645 EF 01 ||MOV BYTE PTR SS:[EBP-11],1 0050734A |. EB 12 ||JMP SHORT Soldat.0050735E 0050734C |> FF45 E8 ||INC DWORD PTR SS:[EBP-18] 0050734F |. FF4D C0 ||DEC DWORD PTR SS:[EBP-40] 00507352 |.^75 9A |\JNZ SHORT Soldat.005072EE 00507354 |> 47 |INC EDI 00507355 |. FF4D C4 |DEC DWORD PTR SS:[EBP-3C] 00507358 |.^0F85 76FEFFFF \JNZ Soldat.005071D4 0050735E |> 8A45 EF MOV AL,BYTE PTR SS:[EBP-11] 00507361 |. 5F POP EDI 00507362 |. 5E POP ESI 00507363 |. 5B POP EBX 00507364 |. 8BE5 MOV ESP,EBP 00507366 |. 5D POP EBP 00507367 \. C2 0800 RETN 8
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#4
L. Spiro
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Posted 25 September 2009 - 04:54 AM
If all you want to do is test for intersection against a polygon, why not write your own?
In the meantime, you can test how to call the function easily via MHS, which can call any function in your game with no risk of crashing the game.
L. Spiro
In the meantime, you can test how to call the function easily via MHS, which can call any function in your game with no risk of crashing the game.
L. Spiro
#5
mre521
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Posted 25 September 2009 - 11:47 PM
Well, my original problem is that i don't know the maths to test for the polygon intersection. I will try using mhs though.
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