If you want to make a hundred battles in the modification of the game, it is necessary to have a quite rich computer knowledge. There are many computer masters to play games, modify the game, and gradually produce a strong interest in the computer, gradually grow up. Don't envy others can do it, because others can do it! I believe that after reading this tutorial, there will be a new understanding of the game, huh, because I am a good teacher! (Don't take the egg, hurt! # ¥% ... *) But want to learn knowledge from the modification of the game, increase your computer level, can not just modify the game! To know, modifying the game is just a place to verify that some computer knowledge you know, you can only give you some discovery questions, solve the opportunity to solve the problem, can only help you improve your interest in learning computers And it is not a way to learn the shortcut. One: What is hanging? Nowadays, online games are based on Internet access client / server mode. The server program runs on the game server. The game designer creates a huge game space, and players from all over the game can be logged in to the game by running client programs. . Simply put, online games actually provide a game environment by game developers, while players are relative free and openly in this environment. So since there is a server in the online game, we used to modify the game method for power. Remember that we have changed the various properties of the role in a single-machine version of the game, which is invited by memory search, which is not used in the online game. Because the various properties and various important information we played in online games are stored on the server, on our own machine (client) just displays the status of the role, so through the modification of the role in the client memory The species is unrealistic. So, don't we do any way to reach our modification in online games? The answer is "No". We know communication of Internet Customer / Server Mode Generally adopted TCP / IP communication protocols. Data exchange is implemented through the transmission of IP packets. Generally, our clients send certain requests to the server, such as mobile, combat and other instructions. It is switched through the form of the package and the server. Then we call the local news called Send, meaning to send data, after the server receives our Send, feedback the relevant information to the client, such as moving coordinates, and the type of battle. Then we collect the information sent by the client from the server called Recv. I know this truth, the work we have to do is to analyze the data between the client and the server (that is, the package) so that we can extract the data to us, and then simulate the server to the client. Or the simulated client is sent to the server so that we can implement the purpose of our modification. In addition to modifying the game packages to achieve the purpose of modifying the game, we can also modify the client's related procedures to meet our requirements. We know that the calculation capacity of each server is limited, especially in the game, the game server wants to calculate all the players in the game, so there are some operations to rely on our clients to complete, this is given We modify the game to provide some convenience. For example, we can detect the client program to find some programs to discover the branch. We can remove some of our unfavorable judgments to meet the needs of us to modify the game. In the next few chapters, we will tell you the concept of the package, and modify the relevant knowledge of the client.
Are you ready? Game data format and storage: Before conducting our work, we need to master some knowledge of the storage data in your computer and the characteristics of storage data in the game. This chapter is to provide a player who is provided to the rookie. If you are a master, you can skip. If you want to be an invincible swordsman, then you will spend some time; if, you just want to make a If the tourists of the rivers and lakes, then these things understand whether there is nothing to do. Is it a sword, or a tourist, you choose! Now we start! First, you have to know several formats in the game, these formats are: bytes, words (word), double words, or 8 bits, 16-bit, and 32-bit storage. the way. The byte is also a number of 0 to 255. The word or the 16-bit storage mode can store the number of 0 ~ 65535; the double word is 32-bit way to store 0 ~ 4294967295. Why do you want to understand this knowledge? The maximum value of various parameters in the game is different, and some may be enough 100 or so, for example, the level of the role in Jin Yong Qun Xia Chuan, the number of enemies, etc. Some of them need more than 255 or even greater than 65535, and the money value of the role in Jin Yong Qun Xia can reach millions. Therefore, the type of different data in the game is different. When we modify the game, you need to find a package that is prepared to modify, in which case the type of data correctly determines is an important condition for quickly finding the correct address. In the computer, data is based on bytes, each byte being given a number to determine the position of each. This number should be called address. When you need to use a word or double word, the computer makes a word with a continuous two bytes, and two consecutive words form a double word. And the address of a word or double word is the address of their low byte. Now that our usual Windows 9x operating system is represented by a 32-bit binary number. When we usually use the memory address, it always uses an 8-bit 16-based number to represent it. What is the binary and hexadecimal? Simply put, the number of binary is only 0 and 1 two digital, and each of the counting carrying encompacters. Similarly, the 16 credit is a count carrying method for every sixteen. 16 Entering 0 - f sixteen numbers, which uses the numbers of Ten to 15 using the numbers of A, B, C, D, E, F, and the correspondence between them and the decade is: a corresponds to 10, B correspond to 11, C correspond to 12, D correspond to 13, E correspond to 14, F corresponds to 15. Moreover, there is a simple correspondence between the 16-based number and the binary number, that is, the four-bit binary number is equivalent to a number of 16-based number. For example, a four-bit binary number 1111 is equivalent to 16-based f, 1010 is equivalent to A. Understanding these basic knowledge has a great help to modify the game, let's talk about this problem. Since the data is stored in the computer, the conversion relationship between the binary and the binary is very simple, so most modification tools displays 16-en-generated code when the data in the computer is displayed. You also need to enter 16-based numbers when you modify. Are you clear? The data seen in the game can be decimal. When you want to find and modify the value of the parameter, you can use the calculator provided by Windows to perform decimal and 16-based translation, we can be in the program group in the start menu. Find it in the attachment. The knowledge you have to know now is almost the same! However, there is a problem to pay attention to in the game modification. The storage method of data in the computer is typically stored in the low byte, and the high number is stored in the high byte.
