41 lines
1.1 KiB
TypeScript
41 lines
1.1 KiB
TypeScript
import { createSlice } from '@reduxjs/toolkit';
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import { Point } from '../components/slippy/sleepy';
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export interface SlippyState {
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scale: number;
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translation: Point;
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}
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const initialSlippyState: SlippyState = {
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scale: 1,
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translation: { x: 0, y: 0 },
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};
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const slippySlice = createSlice({
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name: 'slippy',
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initialState: initialSlippyState,
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reducers: {
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scale(state, action) {
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state.scale = state.scale * action.payload.factor;
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state.translation.x =
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state.translation.x +
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(state.translation.x - action.payload.center.x) *
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(action.payload.factor - 1);
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state.translation.y =
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state.translation.y +
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(state.translation.y - action.payload.center.y) *
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(action.payload.factor - 1);
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},
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translate(state, action) {
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console.log(`translate: action=${JSON.stringify(action)}`);
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state.translation.x = state.translation.x + action.payload.x;
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state.translation.y = state.translation.y + action.payload.y;
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},
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},
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});
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export const slippyActions = slippySlice.actions;
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export default slippySlice.reducer;
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