battle-chatgpt.js

const initialState = {
  // The current state of the battle
  currentState: 'SELECT_MOVE',
  // The active Pokemon on each side
  activePokemon: [null, null],
  // The remaining health of each Pokemon
  health: [0, 0],
  // The moves available to each Pokemon
  moves: [[], []],
  // The current move being used by each Pokemon
  currentMove: [null, null],
  // The effect of each Pokemon's current move
  moveEffect: [null, null],
  // The status effect of each Pokemon
  statusEffect: [null, null],
  // The stats of each Pokemon
  stats: [[], []]
};

function pokemonBattleReducer(state = initialState, action) {
  switch (action.type) {
    case 'SELECT_MOVE':
      // Set the current move for the active Pokemon
      const currentMove = state.currentMove.slice();
      currentMove[action.side] = action.move;

      // Calculate the effect of the move based on the Pokemon's stats
      const moveEffect = state.moveEffect.slice();
      moveEffect[action.side] = calculateMoveEffect(
        action.move,
        state.stats[action.side]
      );

      return {
        ...state,
        currentState: 'APPLY_MOVE',
        currentMove,
        moveEffect
      };

    case 'APPLY_MOVE':
      // Check if the move has a chance to cause a critical hit
      let criticalHit = false;
      if (Math.random() < action.move.criticalHitChance) {
        criticalHit = true;
      }

      // Calculate the effect of the move on the opposing Pokemon's health
      const health = state.health.slice();
      let damage = moveEffect[action.side];
      if (criticalHit) {
        damage *= 2;
      }
      health[action.opposingSide] -= damage;

      // Check if the move has a chance to cause a status effect
      let statusEffect = state.statusEffect.slice();
      if (Math.random() < action.move.statusEffectChance) {
        statusEffect[action.opposingSide] = action.move.statusEffect;
      }

      return {
        ...state,
        currentState: 'CHECK_VICTORY',
        health,
        statusEffect
      };

    case 'CHECK_VICTORY':
      // Check if either Pokemon has been defeated
      if (state.health[0] <= 0 || state.health[1] <= 0) {
        return {
          ...state,
          currentState: 'BATTLE_OVER'
        };
      } else {
        return {
          ...state,
          currentState: 'SELECT_MOVE'
        };
      }

    default:
      return state;
  }
}

function calculateMoveEffect(move, stats) {
  // Calculate the effect of the move based on the Pokemon's stats
  let effect = move.baseEffect;
  effect = effect * stats.attack / stats.defense;
  return effect;