mirror of
https://github.com/coding-horror/basic-computer-games.git
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Removed spaces from top-level directory names.
Spaces tend to cause annoyances in a Unix-style shell environment. This change fixes that.
This commit is contained in:
107
22_Change/javascript/change.js
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107
22_Change/javascript/change.js
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@@ -0,0 +1,107 @@
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// CHANGE
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//
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// Converted from BASIC to Javascript by Oscar Toledo G. (nanochess)
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//
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function print(str)
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{
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document.getElementById("output").appendChild(document.createTextNode(str));
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}
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function input()
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{
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var input_element;
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var input_str;
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return new Promise(function (resolve) {
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input_element = document.createElement("INPUT");
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print("? ");
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input_element.setAttribute("type", "text");
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input_element.setAttribute("length", "50");
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document.getElementById("output").appendChild(input_element);
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input_element.focus();
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input_str = undefined;
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input_element.addEventListener("keydown", function (event) {
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if (event.keyCode == 13) {
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input_str = input_element.value;
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document.getElementById("output").removeChild(input_element);
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print(input_str);
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print("\n");
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resolve(input_str);
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}
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});
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});
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}
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function tab(space)
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{
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var str = "";
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while (space-- > 0)
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str += " ";
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return str;
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}
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// Main program
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async function main()
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{
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print(tab(33) + "CHANGE\n");
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print(tab(15) + "CREATIVE COMPUTING MORRISTOWN, NEW JERSEY\n");
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print("\n");
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print("\n");
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print("\n");
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print("I, YOUR FRIENDLY MICROCOMPUTER, WILL DETERMINE\n");
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print("THE CORRECT CHANGE FOR ITEMS COSTING UP TO $100.\n");
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print("\n");
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print("\n");
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while (1) {
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print("COST OF ITEM");
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a = parseFloat(await input());
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print("AMOUNT OF PAYMENT");
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p = parseFloat(await input());
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c = p - a;
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m = c;
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if (c == 0) {
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print("CORRECT AMOUNT, THANK YOU.\n");
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} else {
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print("YOUR CHANGE, $" + c + "\n");
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d = Math.floor(c / 10);
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if (d)
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print(d + " TEN DOLLAR BILL(S)\n");
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c -= d * 10;
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e = Math.floor(c / 5);
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if (e)
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print(e + " FIVE DOLLAR BILL(S)\n");
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c -= e * 5;
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f = Math.floor(c);
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if (f)
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print(f + " ONE DOLLAR BILL(S)\n");
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c -= f;
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c *= 100;
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g = Math.floor(c / 50);
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if (g)
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print(g + " ONE HALF DOLLAR(S)\n");
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c -= g * 50;
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h = Math.floor(c / 25);
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if (h)
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print(h + " QUARTER(S)\n");
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c -= h * 25;
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i = Math.floor(c / 10);
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if (i)
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print(i + " DIME(S)\n");
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c -= i * 10;
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j = Math.floor(c / 5);
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if (j)
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print(j + " NICKEL(S)\n");
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c -= j * 5;
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k = Math.floor(c + 0.5);
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if (k)
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print(k + " PENNY(S)\n");
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print("THANK YOU, COME AGAIN.\n");
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print("\n");
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print("\n");
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}
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}
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}
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main();
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