Since I decided to make high-end goods, all the materials need to be upgraded. The cover is changed to top layer of cowhide, the pendant is changed to jade pendant, the lead seal is changed to agate beads, and even the inner core paper is replaced. In the past, I bought ordinary writing paper casually from supermarkets, but now it has been changed to imported doulin paper. After doing it, I found that the cost is nearly 30 yuan, which is higher than the previous books, and the process is much more complicated. It takes about twenty minutes to make one. Su Wenhai was a little worried and asked, "How much does it cost?"

The online purchase price of the genuine Traveler's Notebook is more than 300 yuan, but the consumption environment in 2016 and 1995 is completely different, and there is no reference value. Du Qiu dared not use the cost to multiply 10 anymore. After hesitating for a while, he said: "For good luck, it's OK to sell it for 88 yuan. Let Sister Huihui sell it tomorrow."

Su Wenxiu saw through his bluffing pricing technology and teased: "You are really, and you're blindly quoting with your eyes closed."

"Cross the river by feeling the stones."

Kraft paper notepads can make about 15 yuan each. If genuine leather notepads can be sold for 88 yuan, they can make more than 50 yuan each, and the profit will be much higher. Su Wenhai plans to see Wang Huihui's parents during the Spring Festival. He is a little tight and is looking forward to new products. He looked at the time and found that it was only about 3 pm. So he found a plastic convenience bag, wrapped the notepad, and said, "Anyway, I have nothing to do, I will send it to Huihui's unit now."

"Don't, this is too rustic." Du Qiu hurriedly stopped him and said to Su Wenxiu: "Put the unused kraft paper and let's make a nicer envelope."

Su Wenxiu was skillful and quickly made a moderately sized envelope according to the size of the notepad. Du Qiu first drew a few sparse and elegant bamboos in the lower left corner with a brush, and then wrote two ancient poems on the right: "The shadow of the window bamboo shaking on the desk, and the sound of the wild springs entered the inkstone pond" in a running script. After writing carefully, he felt a little monotonous and seemed to be missing something. After thinking about it for a while, he suddenly realized and said, "We have to build a brand for the notepad. If the brand is started, we will not be afraid of being plagiarized in the future."

"By the way!" Su Wenhai slapped his forehead and agreed: "It's the same TV, Sony's is much more expensive than Changhong's, but everyone is still willing to buy it. If we had made a brand from the beginning, we wouldn't be afraid of the old man coming to grab the business now."

"Then what do you think the brand is called?"

"Of course you will choose the name. Among the three of us, you have the most ideas and the most tasteful ones."

Because he focuses on the business market, his original name Traveler's Notebook was not suitable. Du Qiu thought for a while and suddenly remembered his laptop, so he said: "Now many people like to admire foreign countries and fascinate foreign countries. Why not use the English name, which is called Thinker's Notebook, disguised as imported goods, and then changed the price to 118, which is more auspicious."

"It will be 30 yuan more expensive to choose a name. You might as well go and grab the bank." Su Wenhai shook his head and said, "You can buy a down jacket in a department store for 118 yuan. Only a fool would buy such an expensive notebook."

"There are so many prices, but it may not be really selling so many. You can adapt to the situation. What if you really meet a fool."

Su Wenxiu liked this name very much and gave an idea: "Brother, don't the printing factory have a lot of lead characters? Go and get a few English words and print them under these two lines of poetry. Just like those seals on ancient calligraphy and paintings, it will definitely look good in combination with Chinese and Western styles."

Su Wenhai actually went to the printing factory and brought back a large bag of lead type. Before Academician Wang Xuan invented the Chinese character laser illumination system in 1979, almost all newspapers and books across the country used the lead movable type printing system invented by the German Gudenberg in 1450. This ancient technology was eliminated in the 1990s. This was the first time Du Qiu saw it. After playing with it for a while, he drew on red pigments. One letter and one letter to the bottom right corner of the envelope were printed with the "Thinker's Notebook" logo. After printing, he suddenly felt much taller. The lively running script and the rigorous lead type were in contrast, and the black bamboo shadows and red seals were staggered, which were both ancient and fashionable, revealing an elegant literary style that was unsightly.

"Du Qiu, do you know computers, electronics, English, and you can write and draw. Which college is from?"

"It's all self-taught, just a little understanding."

"Just talk nonsense!" Su Wenhai put the notepad in the envelope, looked at his clothes for a while, and said to himself: "This book is so high-end, it makes me feel so old-fashioned, and I feel embarrassed to go out."

"That's called self-shaming! You can leave quickly and don't show your shame at home."

After driving Su Wenhai away, Su Wenxiu sighed softly and said apologetically: "It's all my fault. In order to let my father know that my brother has reformed himself, he brags at home that we made more than 3,000 yuan in a few days after selling notepads. I didn't expect to cause such a thing. I'm sorry."

"It's okay, you're also thinking about your brother. Besides, there is no bad thing to compete. We were too careless before. Now that we have pressure, if we do it well, we might be blessed in disguise and earn more than before."

Du Qiu comforted her a few words, and saw that she was not in high spirits, so she decided to implement material rewards. She picked up the financial record sheet hanging on the wall and looked at it, saying, "We made a total of 272 notepads a few days ago, and sold them for 5,440 yuan. After deducting the material cost and daily expenses, there are still 3,813 yuan left. These days have been quite hard. Why not give 2,000 yuan to pay dividends first, and each person will get 500 yuan."

"You make the decision."

After Su Wenhai went there, there was no news. At 6 o'clock, Du Qiu went to the computer room to write code step by step. He was already familiar with Yuan Tiangang. He did not need a document to register and could go in and out as soon as possible. Moreover, after struggling in the past few days, he was basically familiar with the software and hardware system in 1995. He stopped writing a few lines and was much more efficient. By around 9 o'clock, he had almost finished writing several main functions of the compression software. So he got off the machine in advance and planned to find Su Wenxiu to see the refund of the notepad. In order to make the notepad, this girl switched all the duty hours to the evening. It was quite hard.

When getting off the plane, Du Qiu saw Yuan Tiangang and a guy wearing glasses gathered in the registration room, pointing at the computer on the service desk and discussing questions like how Xiaojian was going, and asked casually: "Da Yuan, what new game are you playing?"

"It's not playing games, it's playing games." Yuan Tiangang stood up and explained while helping him get off the machine, "I played a Three Kingdoms game with my friend, and I am now studying how to make the soldiers inside act like a real army."

Make your own game?

Something interesting...

Du Qiu walked into the registration room and looked carefully. He immediately looked at Yuan Tiangang with admiration. It turned out that he had made a two-player battle game. The two players each used a computer, each selected a general, and each brought a group of soldiers. Then he simulated the famous battle in "Romance of the Three Kingdoms" and attacked each other on specific maps, such as Hulao Pass, Changbanpo, etc. The game was very rough, and it was not good in terms of the picture, setting or operation, but it was creative. It was very rare to create a LAN battle game in 1995 when stand-alone games were popular.

"Your game is more technical than that compression software, so you should use it as a graduation design."

"I thought, but the tutor refused to let him go, saying that playing games is not the right way." Yuan Tiangang complained a few times and introduced the guy standing next to him: "This is my friend, Chen Dawei, a communication engineering major, and he wrote the Internet part."

Chen Dawei is not tall, wearing glasses, looks gentle, but he is a little gangster. He chews chewing gum and sits on the service desk with a bit arrogant attitude: "If you are fine, leave quickly. Don't pretend to understand and join in the fun here. Haven't you seen us busy?"

No wonder Su Wenxiu said that college students are very arrogant...

Du Qiu was too lazy to see him, so he asked Yuan Tiangang directly: "You think the soldiers in the game are not smart enough, right?"

"Yes, we set up a general to take 100 soldiers, and they have to deploy them to different terrains when fighting. However, the AI ​​problem of these soldiers cannot be solved now. They can only walk in a straight line like robots, cannot walk along the terrain separately, and cannot avoid obstacles. Our game mainly relies on terrain and obstacles to improve playability, because in ancient times, wars were the most important, and if they were all changed to plains, it would be boring."

Making games is indeed a technical job, and it is a difficult technical job...

Du Qiu knew what troubles these two guys were facing, because this trouble was not an isolated case, but a headache for many game development companies in the early days, that is, how to simulate the collective movement of large-scale teams - if the entire team is set as an AI, it lacks flexibility and is very rigid in movement, not only is it unreal and easy to get stuck, but if AI is set for every unit in the team, it is too cumbersome and complicated, not only can the programmers not bear it, but the hardware cannot run.

This problem was not solved until the late 1990s, and the inspiration for the solution came from the scientific research and film industry. In 1987, computer expert Reynolds published a paper exploring how to use computers to simulate the collective movement of birds, sheeps and fish. Later, a cluster model called Boids was developed. This model was originally used by Hollywood to generate movie special effects, such as "The Lion King" and "The Star Wars". It was not until around 1998 that it began to be used for the production of real-time strategy games, such as "Starcraft" and "Age of Empires". Both masterpieces have very powerful companies to provide technical support, while Yuan Tiangang and Chen Dawei are just two students who have not graduated. It is a fantasy to solve this problem.

Of course, with the development of the times, many new technologies in the 1990s have become common sense in 2016. Boids is a very important model. The particle swarm optimization algorithm derived from it is of great use in pattern recognition, neural networks, intelligent optimization, etc. After Du Qiu traveled through time, he could not go to the Internet, and no one knew how to do it. He thought of countless interesting ideas when writing programs these days, but no one could communicate with them. He was almost growing in his mind. At this time, he saw that the hunting heart was happy and decided to play a bad show of pretentiousness. He signaled Yuan Tiangang to get out of the way, then sat in front of the computer, typing on the keyboard, and preparing to write a simple Boids model demonstration program.

"Hey hey, you are really ungrateful. If you don't understand, leave quickly and don't rub your nose and face..."

Chen Dawei only muttered a few words and couldn't continue, because Du Qiu typed very quickly and almost didn't stop. Lines of code were printed on the screen like edited documents. They were clearly and accurately printed on the screen. He was dazzled and his thinking could not keep up at all. He was shocked. After the code was finished, the shock turned into shock.

After compiling the program, Du Qiu raised his right hand and raised it high, as if Beethoven was playing the piano, or as if the US president was pressing the nuclear button and typing the Enter key in a gentle and cautious manner. At the moment of typing, dozens of small black dots appeared on the screen. The black dots were like living tadpoles, swimming around freely, sometimes dispersing and sometimes gathering, seemingly random but clear, seemingly rigorous but agile, pleasing to the eye, and extremely beautiful.

Yuan Tiangang looked at the screen with an incredible face, while Chen Dawei swears, clenched his fists and beat the service desk, and exclaimed loudly: "Damn it! Gathering but not heavy, dispersing but not messing, just like the military power mentioned in "The Art of War" and the water powerless shape are exactly the same. This is the effect I want! Brother Qiu, right? You are so nice, even more nice than the American teacher who came back from the computer department. I admire it!"

"I won't waste my time for you, I'll leave first."

After the matter, I left my clothes and my reputation were hidden...
Chapter completed!