International morse code trainer (#1307)

* Added Morse_trainer.js and associated thumbnail * removed unused audio capabilities --------- Co-authored-by: Shubham Panth <[email protected]>
hackclub · Dec 21, 2023 · cfa8e0e · cfa8e0e · vercel · Dec 21, 2023
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diff --git a/games/Morse_trainer.js b/games/Morse_trainer.js
@@ -0,0 +1,244 @@
+/*
+Morse code trainer by Yutaro
+Has two modes: Morse to text and text to morse
+Used for learning morse code
+*/
+
+//backgrounds
+const titleScreen = "t";
+const menuSelect = "m";
+
+const maps = [
+  map``
+]
+setLegend(
+  [titleScreen,bitmap`
+2222222222222222
+2222222222222222
+2222222222222222
+2222222222222222
+2222222222222222
+2222222222222222
+2222222222222222
+2222222222222222
+2222222222222222
+2222222222222222
+0000000000000000
+0000000000000000
+0000000000000000
+0000000000000000
+0000000000000000
+0000000000000000`],
+  [menuSelect,bitmap`
+0000000000000000
+0000000000000000
+0000000000000000
+0000000000000000
+0000000000000000
+0000000000000000
+0000000000000000
+0000000000000000
+0000000000000000
+0000000000000000
+0000000000000000
+0000000000000000
+0000000000000000
+0000000000000000
+0000000000000000
+0000000000000000`],
+)
+
+setMap(map`.`)
+
+let currentState = "title";
+let sound = false;
+//display screen drawing function
+function drawScreen(){
+  clearText()
+  if (currentState == "title"){
+    setBackground(titleScreen);
+    addText("Morse Trainer", { 
+    x: 4,
+    y: 4,
+    color: color`3`
+    })
+
+    //sound message
+    addText(`Sound: ${sound}`, { 
+      x: 4,
+      y: 6,
+      color: color`3`
+    })
+
+    //addText("Press A to start\nD to toggle sound", { 
+    //  x: 2,
+    //  y: 12,
+    //  color: color`3`
+    //})
+  }
+
+  if (currentState == "modeSelect"){
+    setBackground(menuSelect);
+    addText("W: Instructions", { 
+    x: 1,
+    y: 5,
+    color: color`3`
+    })
+
+    addText("S: morse -> text", { 
+    x: 1,
+    y: 7,
+    color: color`3`
+    })
+
+    addText("A: text -> morse", { 
+    x: 1,
+    y: 9,
+    color: color`3`
+    })
+  }
+
+}
+
+drawScreen();
+
+
+//character database
+const characters = {"0":"-----","1":".----","2":"..---","3":"...--","4":"....-","5":".....","6":"-....","7":"--...","8":"---..","9":"----.","a":".-","b":"-...","c":"-.-.","d":"-..","e":".","f":"..-.","g":"--.","h":"....","i":"..","j":".---","k":"-.-","l":".-..","m":"--","n":"-.","o":"---","p":".--.","q":"--.-","r":".-.","s":"...","t":"-","u":"..-","v":"...-","w":".--","x":"-..-","y":"-.--","z":"--..",".":".-.-.-",",":"--..--","?":"..--..","!":"-.-.--","-":"-....-","/":"-..-.","@":".--.-.","(":"-.--.",")":"-.--.-"}
+
+//sorted version 
+const charIndex = ["a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z","0","1","2","3","4","5","6","7","8","9"]
+
+//funciton to convert the typed morese code to text
+function findCharacter(moresePattern){
+  //not found
+  let ret = "NF";
+  let keys = Object.keys(characters);
+  for(let i = 0;i<keys.length;i++){
+    if(characters[keys[i]] == moresePattern){
+      ret = "";
+      ret+=keys[i]
+      return ret;
+    }
+  }
+  return ret;
+}
+
+const dash = tune`
+2000: G5/2000,
+62000`
+const dot = tune`
+666.6666666666666: G5/666.6666666666666,
+20666.666666666664`
+const silence = tune`
+500: C4-500,
+15500`
+
+let currentMorse = "";
+let currentCharacterBuffer = "";
+
+let textMorsedisplay = "";
+let currentCharIndex = 0;
+let charLen = 0;
+
+function game(){
+  if(currentState == "instructions"){
+    clearText();
+    addText("Game about morse cod\ne.\n\ntext to morse is le\narning morse\n\nmorse to text is usi\nng morse", { x: 0,y: 2,color: color`3`});
+  }
+
+  if (currentState == "morseText"){
+    //main game loop where user enters morse using buttons and machine decodes
+    clearText();
+    addText("W: dot, S: dash, \nA: Enter, D: Clear", { x: 0,y: 2,color: color`3`});
+    addText(currentCharacterBuffer, { x: 0,y: 6,color: color`3`});
+    addText(currentMorse, { x: 0,y: 10,color: color`3`});
+  }
+
+  if(currentState == "textMorse"){
+    clearText();
+    addText("W: up, S: down, \nA: Enter, D: Clear", { x: 0,y: 2,color: color`3`});
+    addText(`Current char: (${charIndex[currentCharIndex]})`, { x: 0,y: 6,color: color`3`});
+    addText(textMorsedisplay, { x: 0,y: 8,color: color`3`});
+  }
+}
+
+//key press callbacks
+onInput("d", () => {
+  if(currentState == "title"){
+    sound = !sound;
+    drawScreen();
+  }
+  if(currentState == "morseText"){
+    currentMorse = "";
+    game();
+    return;
+  }
+  if(currentState == "textMorse"){
+    textMorsedisplay = "";
+    charLen = 0;
+    game();
+  }
+});
+
+onInput("a", () => {
+  if(currentState == "title"){
+    currentState = "modeSelect";
+    drawScreen();
+    return;
+  }
+  if(currentState == "modeSelect"){
+    currentState = "textMorse";
+    game();
+    return;
+  }
+  if(currentState == "morseText"){
+    let tem = findCharacter(currentMorse);
+    currentMorse = "";
+    if(tem != "NF")currentCharacterBuffer+=tem;
+    game();
+    return;
+  }
+
+  if(currentState == "textMorse"){
+    charLen+=characters[charIndex[currentCharIndex]].length+1;
+    if(charLen>15) {textMorsedisplay+="\n";charLen = 0;}
+    textMorsedisplay+=characters[charIndex[currentCharIndex]]+" ";
+    game();
+  }
+});
+
+onInput("w", () => {
+  if(currentState == "modeSelect"){
+    currentState = "instructions";
+    game();
+    return;
+  }
+  if(currentState == "morseText"){
+    currentMorse+=".";
+    game();
+  }
+  if(currentState == "textMorse"){
+    if(currentCharIndex<charIndex.length-1)currentCharIndex+=1;
+    else currentCharIndex = 0;
+    game();
+  }
+});
+
+onInput("s", () => {
+  if(currentState == "modeSelect"){
+    currentState = "morseText";
+    game();
+    return;
+  }
+  if(currentState == "morseText"){
+    currentMorse+="-";
+    game();
+  }
+  if(currentState == "textMorse"){
+    if(currentCharIndex>=0)currentCharIndex-=1;
+    game();
+  }
+});
+
+
diff --git a/games/img/Morse_trainer.png b/games/img/Morse_trainer.png