Fire-Colored particle system

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IcarusLives
Posts: 112
Joined: 17 Jan 2016 23:55

Fire-Colored particle system

#1 Post by IcarusLives » 07 May 2019 22:07

Hello everyone,

Here is a particle system! they change colors as they rise. Not much to be impressed about, just a fun visual. Enjoy!

Image

Code: Select all

@echo off & setlocal enableDelayedExpansion
( for /f %%a in ('echo prompt $E^| cmd') do set "esc=%%a" ) & echo !esc![?25l

set "temperature[0]=[38;2;7;7;7mÛ[0m"
set "temperature[1]=[38;2;31;7;7mÛ[0m"
set "temperature[2]=[38;2;47;15;7mÛ[0m"
set "temperature[3]=[38;2;71;15;7mÛ[0m"
set "temperature[4]=[38;2;87;23;7mÛ[0m"
set "temperature[5]=[38;2;103;31;7mÛ[0m"
set "temperature[6]=[38;2;119;31;7mÛ[0m"
set "temperature[7]=[38;2;143;39;7mÛ[0m"
set "temperature[8]=[38;2;159;47;7mÛ[0m"
set "temperature[9]=[38;2;175;63;7mÛ[0m"
set "temperature[10]=[38;2;191;71;7mÛ[0m"
set "temperature[11]=[38;2;199;71;7mÛ[0m"
set "temperature[12]=[38;2;223;79;7mÛ[0m"
set "temperature[13]=[38;2;223;87;7mÛ[0m"
set "temperature[14]=[38;2;223;87;7mÛ[0m"
set "temperature[15]=[38;2;215;95;7mÛ[0m"
set "temperature[16]=[38;2;215;95;7mÛ[0m"
set "temperature[17]=[38;2;215;103;15mÛ[0m"
set "temperature[18]=[38;2;207;111;15mÛ[0m"
set "temperature[19]=[38;2;207;119;15mÛ[0m"
set "temperature[20]=[38;2;207;127;15mÛ[0m"
set "temperature[21]=[38;2;207;135;23mÛ[0m"
set "temperature[22]=[38;2;199;135;23mÛ[0m"
set "temperature[23]=[38;2;199;143;23mÛ[0m"
set "temperature[24]=[38;2;199;151;31mÛ[0m"
set "temperature[25]=[38;2;191;159;31mÛ[0m"
set "temperature[26]=[38;2;191;159;31mÛ[0m"
set "temperature[27]=[38;2;191;167;39mÛ[0m"
set "temperature[28]=[38;2;191;167;39mÛ[0m"
set "temperature[29]=[38;2;191;175;47mÛ[0m"
set "temperature[30]=[38;2;183;175;47mÛ[0m"
set "temperature[31]=[38;2;183;183;47mÛ[0m"
set "temperature[32]=[38;2;183;183;55mÛ[0m"
set "temperature[33]=[38;2;207;207;111mÛ[0m"
set "temperature[34]=[38;2;223;223;159mÛ[0m"
set "temperature[35]=[38;2;239;239;199mÛ[0m"
set "temperature[36]=[38;2;255;255;255mÛ[0m"

set /a "max=36", "mag=4"
set /a "hei=wid=max", "objects=max * mag"
mode %wid%,%hei%

for /l %%a in (1,1,%objects%) do set /a "y[%%a]=!random! %% hei + hei","x[%%a]=%%a / mag","ys[%%a]=!random! %% mag + 1"

for /l %%# in () do ( 

	for /l %%a in (1,1,%objects%) do (

		if !y[%%a]! lss 0 ( set /a "y[%%a]=hei" ) else set /a "ly=y[%%a]","y[%%a]-=ys[%%a]"

		for %%y in (!y[%%a]!) do set "screen=!screen!%esc%[!ly!;!x[%%a]!H %esc%[!y[%%a]!;!x[%%a]!H!temperature[%%y]!"
	)

	<nul set /p "=!screen!" & set "screen="
)

Jer
Posts: 152
Joined: 23 Nov 2014 17:13
Location: California USA

Re: Fire-Colored particle system

#2 Post by Jer » 08 May 2019 09:23

Any idea why the batch code does this? The termination is my doing.
This is all displayed in a smaller window, same as your image.
My O/S: Microsoft Windows [Version 10.0.17134.706]

Code: Select all

 [38;2;191;71;7m█[0m      [38;2;175;                                                                          63;7m█[0m;199;7[3[38;2;199;71;[38;2;                                                                          175;63;7m█[0m38;2;223;79;7m█[0m38;[3                                                                          8;2;191;71;7m█[0m[38;2;215;95;7m█[0m
  38;2;207;1[38;2;215;95;7 █[0m   [3
8;[3 ;2;215;95; m [0m2;207 38; 38;2;
[38;2;215;95 7m█[0m█[0m27;15m█ 0m0 3
[38; ;20[38;2[38;2;21[38;2;215;1[38;                                                                          2;215;95;7m█[0m3m█[0m[38;2;207;127 1
 38;2;207;119;1[38;2;207;119;1[38;2;                                                                          215;103;15m█[0m;2;207 127;15m█[0m;2;
207;135; 3m█[ m;2;199 143;23m[38 2;2
07;119;15m█[0m5 ;31[38;2;199;135;23m
█[0m2;19 ;16  3 m█[[38;2;191;1 9 31m
█[0 159;31m█ 0m ;39m[38;2;199 151;31
m█[0m7;3 [[[3[38[38 2;191;159;31m█[0
m█[0m75;4[[38;2;191 [38[38;2;191;167
;39m█[0m[38;2;191;16[38[38;2;191;[38                                                                          ;2;191;159;31m█[0m2; 91;167[38;2;191
;159;31m█[0m7 ;4 m█[0m8 2;[38;[38 2;
191;167;39m█[0m[0mm█[38;2;183;175;47
m█[0m0m3[[38;2;183;183;47m  0[38; ;1
91;175;47m█[0m83;183;5[38;2;[38;2;18
3;175;47m█[0m[38;2;2 7 207;[38 2;183
;183;47m█[0m23;223[38;2;2[38  ;207;2
07;111m█[0m38 [3[3 [38;2;23[3[3[[38;                                                                          2;207;207;111m█[0m  2 [3[38;2;[38;2;
223;223;159m█[0m          [ 8;2;239;
239;199m█[0m                       ^                                                                          CTerminate batch job (Y/N)?

aGerman
Expert
Posts: 3605
Joined: 22 Jan 2010 18:01
Location: Germany

Re: Fire-Colored particle system

#3 Post by aGerman » 08 May 2019 09:39

Did you check "Use legacy console" in the console properties? If so, uncheck it.

Steffen

EDIT Nope, I'm facing the same problem with this particular code.

penpen
Expert
Posts: 1669
Joined: 23 Jun 2013 06:15
Location: Germany

Re: Fire-Colored particle system

#4 Post by penpen » 08 May 2019 11:19

I think IcarusLives initially used the esc-character itself in that batch and replaced it by a delayed variable later (adding some slight errors), so the following should work:

Code: Select all

@echo off & setlocal enableDelayedExpansion
( for /f %%a in ('echo prompt $E^| cmd') do set "esc=%%a" ) & echo !esc![?25l

set "temperature[0]=[38;2;7;7;7mÛ"
set "temperature[1]=[38;2;31;7;7mÛ"
set "temperature[2]=[38;2;47;15;7mÛ"
set "temperature[3]=[38;2;71;15;7mÛ"
set "temperature[4]=[38;2;87;23;7mÛ"
set "temperature[5]=[38;2;103;31;7mÛ"
set "temperature[6]=[38;2;119;31;7mÛ"
set "temperature[7]=[38;2;143;39;7mÛ"
set "temperature[8]=[38;2;159;47;7mÛ"
set "temperature[9]=[38;2;175;63;7mÛ"
set "temperature[10]=[38;2;191;71;7mÛ"
set "temperature[11]=[38;2;199;71;7mÛ"
set "temperature[12]=[38;2;223;79;7mÛ"
set "temperature[13]=[38;2;223;87;7mÛ"
set "temperature[14]=[38;2;223;87;7mÛ"
set "temperature[15]=[38;2;215;95;7mÛ"
set "temperature[16]=[38;2;215;95;7mÛ"
set "temperature[17]=[38;2;215;103;15mÛ"
set "temperature[18]=[38;2;207;111;15mÛ"
set "temperature[19]=[38;2;207;119;15mÛ"
set "temperature[20]=[38;2;207;127;15mÛ"
set "temperature[21]=[38;2;207;135;23mÛ"
set "temperature[22]=[38;2;199;135;23mÛ"
set "temperature[23]=[38;2;199;143;23mÛ"
set "temperature[24]=[38;2;199;151;31mÛ"
set "temperature[25]=[38;2;191;159;31mÛ"
set "temperature[26]=[38;2;191;159;31mÛ"
set "temperature[27]=[38;2;191;167;39mÛ"
set "temperature[28]=[38;2;191;167;39mÛ"
set "temperature[29]=[38;2;191;175;47mÛ"
set "temperature[30]=[38;2;183;175;47mÛ"
set "temperature[31]=[38;2;183;183;47mÛ"
set "temperature[32]=[38;2;183;183;55mÛ"
set "temperature[33]=[38;2;207;207;111mÛ"
set "temperature[34]=[38;2;223;223;159mÛ"
set "temperature[35]=[38;2;239;239;199mÛ"
set "temperature[36]=[38;2;255;255;255mÛ"

set /a "max=36", "mag=4"
set /a "hei=wid=max", "objects=max * mag"
mode %wid%,%hei%

for /l %%a in (1,1,%objects%) do set /a "y[%%a]=!random! %% hei + hei","x[%%a]=%%a / mag","ys[%%a]=!random! %% mag + 1"

for /l %%# in () do ( 

	for /l %%a in (1,1,%objects%) do (

		if !y[%%a]! lss 0 ( set /a "y[%%a]=hei" ) else set /a "ly=y[%%a]","y[%%a]-=ys[%%a]"

		for %%y in (!y[%%a]!) do set "screen=!screen!%esc%[!ly!;!x[%%a]!H %esc%[!y[%%a]!;!x[%%a]!H!esc!!temperature[%%y]!!esc![0m"
	)
	<nul set /p "=!screen!" & set "screen="
	for /l %%a in (1, 1, 150000) do rem
)
Sidenote: Note i added the loop "for /l %%a in (1, 1, 150000) do rem" in order to slow down that; you might want to delete that loop or change the values.


penpen

aGerman
Expert
Posts: 3605
Joined: 22 Jan 2010 18:01
Location: Germany

Re: Fire-Colored particle system

#5 Post by aGerman » 08 May 2019 11:49

Haha, I was about to post almost the same code. Every [ needs its own escape character.

Steffen

Jer
Posts: 152
Joined: 23 Nov 2014 17:13
Location: California USA

Re: Fire-Colored particle system

#6 Post by Jer » 08 May 2019 12:19

I have questions about two lines. If someone could explain, that would be great.
What does "& echo !esc![?25l" do?

In the assignment of screen, how is "H" doing its job?
Changing it to some other character gives different spacing and frequency.
"G" and "I" produce many more characters than H.

Thanks.
Jerry

aGerman
Expert
Posts: 3605
Joined: 22 Jan 2010 18:01
Location: Germany

Re: Fire-Colored particle system

#7 Post by aGerman » 08 May 2019 12:43

!esc![?25l hides the cursor.
!esc![y;xH moves the cursor position to line y and column x
I'm not aware that G or I are even valid characters in this context.

https://docs.microsoft.com/en-us/window ... -sequences

Steffen

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