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export interface GState {
displayedLineIdx: number;
typedCount: number;
lineCompleted: boolean;
combo: number;
maxCombo: number;
score: number;
totalCorrect: number;
totalMiss: number;
linesCleared: number;
wpm: number;
}
export type GAction =
| { type: "ADVANCE"; newIdx: number; prevCompleted: boolean }
| { type: "CORRECT"; willComplete: boolean }
| { type: "WRONG" }
| { type: "RESET" };
export const initialGState: GState = {
displayedLineIdx: -1,
typedCount: 0,
lineCompleted: false,
combo: 0,
maxCombo: 0,
score: 0,
totalCorrect: 0,
totalMiss: 0,
linesCleared: 0,
wpm: 0,
};
export function gReducer(state: GState, action: GAction): GState {
switch (action.type) {
case "ADVANCE": {
const prevIdx = state.displayedLineIdx;
const comboReset = !action.prevCompleted && prevIdx >= 0;
return {
...state,
displayedLineIdx: action.newIdx,
typedCount: 0,
lineCompleted: false,
combo: comboReset ? 0 : state.combo,
};
}
case "CORRECT": {
const newTypedCount = state.typedCount + 1;
const newCombo = state.combo + 1;
const newMaxCombo = Math.max(state.maxCombo, newCombo);
const comboBonus = Math.min(50, Math.floor(newCombo / 10) * 5);
const newScore = state.score + 10 + comboBonus;
const newTotalCorrect = state.totalCorrect + 1;
if (action.willComplete) {
return {
...state,
typedCount: newTypedCount,
lineCompleted: true,
combo: newCombo,
maxCombo: newMaxCombo,
score: newScore,
totalCorrect: newTotalCorrect,
linesCleared: state.linesCleared + 1,
};
}
return {
...state,
typedCount: newTypedCount,
combo: newCombo,
maxCombo: newMaxCombo,
score: newScore,
totalCorrect: newTotalCorrect,
};
}
case "WRONG":
return { ...state, totalMiss: state.totalMiss + 1, combo: 0 };
case "RESET":
return { ...initialGState };
default:
return state;
}
}
|
