Why is it that all the games are pseudorandom and can't make true random?

Why are all in the game pseudorandom , Can't make it really random ？ I hope to have a simple explanation ？

I found it like LOL These games , The crit mechanism is pseudorandom , There are no critical hits in front , The critical hit probability behind is very high . The glory of Kings is more obvious , Can card critical hit .

Because this can ensure that the overall probability is completely unchanged ,「 Extreme good luck 」 and 「 Extreme bad luck 」 As few as possible , Reduce the luck of each player , Ensure the experience of both sides .

“ Robin Hood ” Of 「 Pseudorandom 」 The European emperor can speak more about the basic law , Let Fei Chieh have the most basic game experience .

If you play the game according to the real probability , The experience will only be worse , That's really disgusting. Remember one year at a time .（ The answer is only for the analysis of the same probability value , It does not include the shipment of card drawing mobile games …）

for instance , To compare 20% Probability , Distinguish use 「 True random 」 and 「 Pseudorandom 」 Under the circumstances , yes 2 There are different calculation modes .

It's really random 20% operation pattern ： The probability of each occurrence is 20%, Calculate independently each time .

Pseudo random 20% operation pattern ： The first 1 The probability of occurrence is 5.6%, If it happens, press... Next time 1 Next 5.6% count , If it doesn't happen, the next probability +5.6%, For example 2 for 11.2%, If you don't hit it again 3 for 16.8%, And so on , Until it happens and returns to the 1 Next 5.6%. If the cumulative probability exceeds 100%, It is considered that it must happen next time .

5.6% This number can be calculated by computer , It is enough to ensure that the probability of occurrence of the two modes is the same , Let's not go over this . Each probability has a numerical solution corresponding to the above values （ Use the computer to calculate directly ok 了 , The simplest dichotomy works ）.

Let's see 20% Probability of two modes 「 Good luck 」 and 「 Bad luck 」 The distribution of .

Let's start with extreme luck ：

20% Probability good luck situation

continuity 2 Trigger

continuity 3 Trigger

continuity 4 Trigger

True random

4.0%

0.80%

0.16%

Pseudorandom

0.31%

0.018%

0.00098%

You can find , In pseudo-random mode , The possibility of extreme luck is greatly reduced .

Let's look at the probability of relatively bad luck ：

20% Probability of bad luck

continuity 6 Times do not trigger

continuity 12 Times do not trigger

continuity 18 Times do not trigger

True random

26.2%

6.87%

1.80%

Pseudorandom

25.9%

0.239%

It's completely impossible

Ruodi 6 It hasn't happened since next ,「 Pseudorandom 」 Will greatly improve the probability of occurrence , Ensure that players trigger once as soon as possible ; And the first 18 The guaranteed minimum guarantee completely guarantees that it is no longer possible 18 Don't hit the bottom .

「 True random 」 Is to continue to be independent . alike 20% probability , Yes 0.8% May trigger continuously 3 Time , And then there is 1.8% The probability will be continuous 18 It doesn't trigger twice …

in other words 20% Under the premise of extreme bad luck , If you try to 100 Round 「 Continuous attack 18 Time 」, There are mathematical expectations 1.8 A round will happen without triggering , This probability is really not very low …

You can find 「 Pseudorandom 」 Under the premise of preserving randomness , Than 「 True random 」 Ensure the game experience of both sides .

Use true random , Many game experiences will only be worse .

For example, for 《 tetris 》, If you use really random , As long as you play enough , You will definitely encounter continuous 30 It's impossible to stand up , Sometimes I encounter 10 Inside out 6 A vertical bar … Which one is very painful .

And the war games are even more , such as 《DOTA2》 Inside PA This kind of hero with critical hit , Critical chance 15% If you use really random , The psychological expectation of players may be 6-7 One critical hit with the knife , But actually continuous 32 There is also a probability that the knife will not critically hit 0.55%… Not to mention the hero of vanity , If you use really random , There will certainly be many more 「 The other party hits you with a hammer in the void , You are directly full of blood and killed by Mu Da 」 The situation of …

Any one of the above may be enough to make people sick enough to delete the game , Those with poor quality may want to connect with his mother, the game producer （x

Just a few simple examples , It may not be so intuitive , It also involves 「 Random 」 And people's psychological misunderstanding is 「 Average 」 wait , It's not going to unfold here .