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Copy-paste this as a prompt in ChatGPT. It feeds AI with the langage syntax as well as examples to get inspiration from:
Copy-paste the prompt in ChatGPT
Imagine you have designed your strongly typed C-like yet basic language. It is typed and has int, double and string (like in C++). You can define variables like in C. No pointer. 
Basic arithmetic operation: +, -, *, / and % It calculates 0 if divide by 0 and if mod with 0.
No variable can have the same name. All variables are defined globally. Not in functions, nor loops, nor if statements.
You also have types arrayint, arraydouble and arraystring, as well as matrixint, matrixdouble. You can access elements like this: array[i] and mat[i][j].
Special instructions to define a new array: arrayint arr = newarrayint(10); 
Another example: matrixdouble m = newmatrixdouble(m, n); Hope you understand.
You can define your own function like in C with void return type. No recursion allowed. No function definition inside another function definition.
No function can return an array or matrix. They must be passed as parameters if they need to be read or updated.
There are built-in functions: mini() to return the minimum of two ints. min() same for 2 doubles. And so on for other basic math functions. No function have the same name, each signature refer to a specific function name. Example: there's no function max() which gives the maximum of two numbers. No. It has to have a name specific for ints "maxi" and for doubles "max". Hope you understand.
For loops are VERY basic. The variable must be defined globally:
Example: int i; for (i=0; i<n; i=i+1) {instructions} No "++" nor "+=" nor "--" nor "-=" and alikes.
Just break is available. No continue.
And the last control instruction that's available is "if" : if (a<=3) {instructions}. And same syntax for "else if" and "else".

The language you described has a limited set of instructions and doesn't provide direct access to the screen or colors, but you have a built-in function called setpixelijcolor(x, y, r, g, b) that sets the color of a pixel at coordinates (x, y) to the specified RGB values (r, g, b).

Here are some examples of your strongly typed C-like script:

1st example:
//Set map dimensions and draw a red, a green and a blue pixel
setpixelmapdims(3, 1); //built-in function that sets pixel map width and height. 1 row and 3 columns here. Maximum is 100 for each.
setpixelijcolor(0, 0,  255, 0, 0); //built-in function that sets a pixel's color: "x" and "y" coordinates from bottom left corner, then rgb components in [0;255]. We write the bottom left pixel to red here.
setpixelijcolor(1, 0,  0, 255, 0); //Green for 2nd pixel
setpixelijcolor(2, 0,  0, 0, 255); //Blue for 3rd pixel

2nd example:
//Set a white text in a pixel
setpixelmapdims(1, 1); //1 by 1 map
setpixelijcolor(0, 0,  0, 0, 0); //set unique pixel's color to black
//This function sets primary and secondary texts, each with their own color, white here. Maximum 8 basic characters per text
setpixelijtexts(0, 0, "Hello,", 255, 255, 255,  "World!", 255, 255, 255); //First text is "Hello," and is white. Second text is "World!" and is white too.


3rd example:
//More pixels! And let's make pixels square.
//Set map dimensions depending on screen size and fill all pixels with greys:
//First way: Fixed pixel size.
int pixel_size=30; //fixed pixel size, the smaller the more pixels you get, the higher pixel_map_dim_x and pixel_map_dim_y will be.
int pixel_map_dim_x = container_dim_x / pixel_size; //container_dim_x is built-in, it's the width in pixels of the map HTML container. It is not settable by coder! Just assume it already has a non-null value.
int pixel_map_dim_y = container_dim_y / pixel_size; //container_dim_y is built-in, it's the height in pixels of the map HTML container. It is not settable by coder! Just assume it already has a non-null value.
setpixelmapdims(pixel_map_dim_x, pixel_map_dim_y);

int nb_pixels = pixel_map_dim_x * pixel_map_dim_y;
int i;
int j;
int color;
//From bottom left to top right corner (cf "setpixelijcolor(i, j, ..."), fill pixel ij with grey from black to white:
for (i = 0; i<pixel_map_dim_x ; i=i+1) {
  for (j = 0; j<pixel_map_dim_y; j=j+1) {
    color = 255 * (i  + j * pixel_map_dim_x) / nb_pixels;
    setpixelijcolor(i, j,  color, color, color); //set pixel ij grey color
    setpixelijtexts(i, j, "", 0, 0, 0,  "", 0, 0, 0); //set no text for pixel ij
  }
}


The language also has a function called tickersdata(), returns a int, the number actual tickers retrieved in database, and its parameters: string, int, string, string, string, string, matrixstring, matrixdouble. See example below.


Example of how to use tickersdata():
//Get data: let's get the last 500 5m-candlesticks of top 20 cryptos against USDT.
//Note that the more data you query, the longer it is (and it may timeout).

int nb_tickers = 20; //number of queried tickers

int nb_last_candlesticks = 500; //note that for accurate indicators values like RSI(14) for example, you need 10x more candlesticks! So you would need 140 last candlesticks to get an accurate value of the latest RSI(14). But remember, the more tickers, the longer the query (and it may timeout). So remember to filter out tickers you don't need in "tickersdata()" below.

string timeframe = "5m";

//Variables to store data. Note that the matrices' dimensions must match parameters in "tickersdata()" below:
matrixstring mats = newmatrixstring(nb_tickers, 2); //Why 2? See symbol, quote in tickersdata() below
matrixdouble matd = newmatrixdouble(nb_tickers * 4, nb_last_candlesticks); //Why 4? See open, high, low, close in tickersdata() below
fillmatrixd(matd, 0.0); //reset matrix: good practice to avoid non-expected values

//Please be careful on syntax here: string and double parameters must match matrices' dimensions above, no useless comma... etc
string tickers_str = "market=crypto, symbol not in (adadown,adaup, bnbdown,bnbup, btcdown,btcup, ethdown,ethup, xrpdown,xrpup, aud,gbp,eur, paxg, busd,usdc,usdp,tusd), quote in (usdt), marketcap in [0, "+i2s(nb_tickers)+"]";

//Fetch data
nb_tickers = tickersdata(tickers_str , nb_tickers, timeframe, "last "+i2s(nb_last_candlesticks), "symbol, quote", "o,h,l,c", mats, matd);

//Show number of retrieved tickers
setpixelmapdims(1, 1); //one-pixel map
setpixelijtexts(0, 0, i2s(nb_tickers), 255, 255, 255,  "", 0, 0, 0); //This simply writes the number of actually retrieved number of tickers in white at the center of the black pixel (black because the screen is reset to black each time a script is interpreted)


As you can see, tickersdata() last two parameters are a string matrix and a double matrix.
They must be created before like this:
"
matrixstring mats = newmatrixstring(nb_tickers, 2/*number of strings queried in tickersdata() call*/);
matrixdouble matd = newmatrixdouble(nb_tickers * 4/*numbers of doubles queried in tickersdata() call*/, nb_last_candlesticks);
"

Here are some other examples with tickersdata():
int nb_tickers = 400; //default number of queried tickers
if (container_dim_x < 800) {nb_tickers = 150;} //pixel map for mobile, show a bit less tickers
if (container_dim_x < 350) {nb_tickers = 80;} //thumbnail version
int nb_last_values = 150;
//Please be careful on parameters: # of queried parameters must match when you call "tickersdata()" below:
matrixstring mats = newmatrixstring(nb_tickers, 1/*symbol*/);
matrixdouble matd = newmatrixdouble(1/*close only*/ * nb_tickers, nb_last_values);
fillmatrixd(matd, 0.0); //good practice to avoid non-expected values
//Please be careful on syntax here, field count must match above, no useless comma... etc
string tickers_str = "market=crypto, symbol not in (adadown,adaup, bnbdown,bnbup, btcdown,btcup, ethdown,ethup, xrpdown,xrpup, aud,gbp,eur, paxg, busd,usdc,usdp,tusd), quote in (usdt),   marketcap in [0, "+i2s(nb_tickers)+"]";
nb_tickers = tickersdata(tickers_str , nb_tickers, timeframe, "last "+i2s(nb_last_values), "symbol", "c", mats, matd);
//sanity check
if (nb_tickers == -1) {
  error("Either there is no data, or tickersdata() failed or timed out because a bit too much data is requested.");
}

Another example:
////
//Get data
int nb_tickers = 1000; //default number of queried tickers
int nb_last_values = 200;
//Please be careful on parameters: # of queried parameters must match when you call "tickersdata()" below:
matrixstring mats = newmatrixstring(nb_tickers, 1/*symbol*/);
matrixdouble matd = newmatrixdouble(3/*open, close and volume*/ * nb_tickers, nb_last_values);
fillmatrixd(matd, 0.0); //good practice to avoid non-expected values
//Please be careful on syntax here, field count must match above, no useless comma... etc
string tickers_str = "market=crypto, symbol not in (adadown,adaup, bnbdown,bnbup, btcdown,btcup, ethdown,ethup, xrpdown,xrpup, aud,gbp,eur, paxg, busd,usdc,usdp,tusd), quote in (usdt),   marketcap in [0, "+i2s(nb_tickers)+"]";
nb_tickers = tickersdata(tickers_str , nb_tickers, timeframe, "last "+i2s(nb_last_values), "symbol", "o,c,v", mats, matd);
//sanity check
if (nb_tickers == -1) {
  error("Either there is no data, or tickersdata() failed or timed out because a bit too much data is requested.");
}

Note that, to write two texts on screen at pixel (x;y), use builtin function setpixelijtexts(x, y, text1, 255, 255, 255,  text2, 0, 0, 0); Here text1 will be displayed in white and text2 in black. Text cannot exceed 8 characters!
Also note that, in the 1st parameter, usually noted 'tickers_str', when you specify "symbol", it must not contain the quote asset. So, for example, use "symbol=btc" and not "symbol=btcusdt". Also, in that 1st parameter, you can use "marketcap" using only the syntax "marketcap in [r0,r1]" with r0 and r1 integers. Example: "marketcap in [0,100]".


Again, specify "symbol=ETH" and not "symbol=ETHUSDT".

Recall that all arrays and matrices must be initialized. You cannot use "matrixstring mats;", you must use "matrixstring mats = newmatrixstring(nbrows, nbcols);".
To access array or matrix element, use arr[i] to access i-th element of array 'arr', and use matd[0][0] to access element 0,0 of matrix 'matd'.


Here is how to calculate a color, given a color map (can be "parula", "heat", "hot", "jet", "gray", "hsv", "magma", "inferno", "plasma", "viridis", "cividis"):
"
int cmap = colormap("viridis");
arrayint color = newarrayint(3);
evalcmap(value/*double in [0;1]*/, cmap, color);
"
You can plug it into setpixelijcolor() and setpixelijtexts().


Finally, note that all variables are defined globally. They cannot be defined in for loops, in if/else statements. Nor custom functions. So use "double marketcap = ..." and "int color_value = ..." outside if/else and for.
Then type in your idea and give as many details as possible: market, symbols, in which quote asset, what calculation do you want to make...
ChatGPT will return a script that you can copy-paste above. It may not be valid right-away... But it's a good starting point sometimes (and sometimes not!).
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Roman - creator of TradingMaps.co
