From 6dbd6e965439a5cce29bccc27cbb9d88afc984f7 Mon Sep 17 00:00:00 2001
From: sanine-a <sanine.not@pm.me>
Date: Fri, 16 Apr 2021 13:07:17 -0500
Subject: add Game component and reset()

---
 App.js | 167 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++---------
 1 file changed, 145 insertions(+), 22 deletions(-)

diff --git a/App.js b/App.js
index 7b7a22c..d72edf4 100644
--- a/App.js
+++ b/App.js
@@ -31,14 +31,17 @@ const setState = update => {
  */
 
 // IMPURE
-const App = ({state, setState}) => {
-   const { guessInput, } = state;
-
-   return h(GuessInput, {
-      value: guessInput.value,
-      isShaking: guessInput.isShaking,
-      handleInput: updateStateOnEvent(state, handleGuessInputInput),
-      handleKeyDown: updateStateOnEvent(state, handleGuessInputKeyDown),
+const App = ({state}) => {
+   const { currentLevel, guessInput, } = state;
+
+   if (guessInput.isShaking)
+      // side-effect!!
+      setTimeout(() => setState({ guessInput: { isShaking: false } }), 300);
+   
+   return h(Game, {
+      state,
+      currentLevel,
+      guessInput,
    });
 };
 
@@ -50,8 +53,29 @@ const App = ({state, setState}) => {
  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  */
 
+const Game = ({ state, currentLevel, guessInput }) => {
+   const { characters, index, running } = currentLevel;
+
+   if (!running)
+      return h('p', {}, 'Finished');
+   else {
+      const [ character ] = characters[index];
+
+      return h('div', {}, [
+         h('p', {}, character),
+         h(GuessInput, {
+            value: guessInput.value,
+            isShaking: guessInput.isShaking,
+            handleInput: updateStateOnEvent(state, handleGuessInputInput),
+            handleKeyDown: updateStateOnEvent(state, handleGuessInputKeyDown),
+         }),
+      ]);
+   }
+};
+
+
 const GuessInput = ({value, isShaking, handleInput, handleKeyDown}) => {
-   const inputTag = isShaking ? 'input.shaking' : 'input';
+   const inputTag = isShaking ? 'input.shake' : 'input';
 
    return h(inputTag, {
       type: 'text',
@@ -74,39 +98,138 @@ const updateStateOnEvent = (state, handler) =>
       event => setState(handler(state, event));
 
 
-const handleGuessInputInput = (state, event) =>
-      ({ guessInput: { value: event.target.value } });
+const handleGuessInputInput = (state, event) => (
+   { guessInput: { value: event.target.value } }
+);
 
 
 const handleGuessInputKeyDown = (state, event) => {
    const KEYCODE_ENTER = 13;
 
+   const { guessInput, currentLevel } = state;
+
+   const guessValue = guessInput.value;
+   const { characters, index, correctGuesses, totalGuesses } = currentLevel;
+   const [ _, pinyin ] = characters[index];
+
    if (event.keyCode === KEYCODE_ENTER) {
-      console.log(state.guessInput.value);
-      return { guessInput: { value: '' } };
+      if (guessValue === pinyin)
+         return {
+            guessInput: {
+               value: '',
+            },
+            currentLevel: {
+               index: index + 1,
+               correctGuesses: correctGuesses + 1,
+               totalGuesses: totalGuesses + 1,
+               running: (index + 1) < characters.length,
+            }
+         };
+      else
+         return {
+            guessInput: {
+               isShaking: true,
+            },
+            currentLevel: {
+               totalGuesses: totalGuesses + 1,
+            }
+         };
    }
-
-   return {};
+   else
+      // enter wasn't pressed, no update
+      return {};
 };
 
 
 /* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  *
- * Document load
+ * Document load and game reset
  *
  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  */
 
-// IMPURE
-window.onload = () => {
-   const initialState = {
+const availableGameModes = (level, levelSize) => {
+   const clampNonNeg = value => value < 0 ? 0 : value;
+
+   const startLevels = [...new Set([
+      clampNonNeg(level),
+      clampNonNeg(level-3),
+      clampNonNeg(level-7),
+      clampNonNeg(level-12),
+      clampNonNeg(0),
+   ])];
+   
+   const modeName = range => {
+      const [start, end] = range;
+      
+      if (start === end)
+         return `Characters from level ${start+1}`;
+      else if (start === 0)
+         return `Characters from levels 1-${end+1}`;
+      else
+         return `Characters from levels ${start+1}-${end+1}`;
+   }
+
+   const mode = startLevel => {
+      const levelRange = [startLevel, level];
+      const range = levelRange.map((x, i) => levelSize * (x+i));
+
+      return {
+         name: modeName(levelRange),
+         range,
+      };
+   };
+
+   const modes = startLevels.map(mode);
+   return modes;
+};
+
+
+const reset = (state, update) => {
+   const newLevel = 0;
+   const gameModes = availableGameModes(newLevel, 20);
+   const newGameMode = 0;
+
+   // new level characters
+   const shuffled = array => {
+      const shuffle = [...array];
+      for (let i=shuffle.length-1; i>1; i--) {
+         const j = Math.floor(Math.random() * (i+1));
+         [shuffle[i], shuffle[j]] = [shuffle[j], shuffle[i]];
+      }
+      return shuffle;
+   };
+
+   const levelCharacters = gameMode => {
+      const [start, end] = gameMode.range;
+      return shuffled(characters.slice(start, end));
+   };
+
+   return {
+      gameParams: {
+         level: newLevel,
+         gameModes,
+         gameMode: newGameMode,
+      },
+      currentLevel: {
+         characters: levelCharacters(gameModes[newGameMode]),
+         index: 0,
+         correctGuesses: 0,
+         totalGuesses: 0,
+         running: true,
+      },
       guessInput: {
          value: '',
          isShaking: false,
-      },
+      }
    };
-               
+};
+
+
+// IMPURE
+window.onload = () => {
+   const initialState = reset();
    setState(initialState);
-}
+};
       
       
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