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useCallback,
useEffect,
useMemo,
useRef,
useState,
} from "react";
import {
useAppDispatch,
useAppSelector,
useAppSelectorPick,
useAppSelectorPickArray,
} from "store/hooks";
import { sceneSelectors } from "store/features/entities/entitiesSelectors";
import entitiesActions from "store/features/entities/entitiesActions";
import editorActions from "store/features/editor/editorActions";
import { Button } from "ui/buttons/Button";
import l10n from "shared/lib/lang/l10n";
import { EyeClosedIcon, EyeOpenIcon, PlusIcon } from "ui/icons/Icons";
import { SplitPaneHeader } from "ui/splitpane/SplitPaneHeader";
import { FlatList } from "ui/lists/FlatList";
import { EntityListItemDnD } from "ui/lists/EntityListItemDnD";
import renderTilemapLayerContextMenu from "components/world/contextMenus/renderTilemapLayerContextMenu";
import ItemTypes from "renderer/lib/dnd/itemTypes";
import styled, { css } from "styled-components";
interface SceneTilemapLayersPaneProps {
sceneId: string;
}
const VisibilityButton = styled.div<{ $visible: boolean }>`
button {
width: 24px;
margin-right: 5px;
svg {
margin: 0;
width: 12px;
height: 12px;
max-width: 12px;
max-height: 12px;
${(props) =>
props.$visible
? css`
fill: ${props.theme.colors.text};
`
: css`
opacity: 0.5;
`}
}
}
`;
const layerDragTypes = [ItemTypes.TILEMAP_LAYER];
const SceneTilemapLayersPane = ({ sceneId }: SceneTilemapLayersPaneProps) => {
const dispatch = useAppDispatch();
const scene = useAppSelectorPick(
(state) => sceneSelectors.selectById(state, sceneId),
["type", "paletteIds"] as const,
);
const hasTilemap = useAppSelector((state) =>
Boolean(sceneSelectors.selectById(state, sceneId)?.tilemap),
);
const layers = useAppSelectorPickArray(
(state) => sceneSelectors.selectById(state, sceneId)?.tilemap?.layers ?? [],
["id", "name", "visible"] as const,
);
const selectedLayerId = useAppSelector(
(state) => state.editor.selectedTilemapLayerId,
);
const [renameLayerId, setRenameLayerId] = useState("");
const dragStart = useRef<{ x: number; y: number } | undefined>(undefined);
const defaultPaintLast = useRef<{ x: number; y: number } | undefined>(
undefined,
);
const displayLayers = useMemo(() => [...layers].reverse(), [layers]);
useEffect(() => {
const clearDrag = () => {
dragStart.current = undefined;
defaultPaintLast.current = undefined;
};
window.addEventListener("mouseup", clearDrag);
return () => window.removeEventListener("mouseup", clearDrag);
}, []);
useEffect(() => {
Iif (
layers.length &&
!layers.some((layer) => layer.id === selectedLayerId)
) {
dispatch(
editorActions.setSelectedTilemapLayerId(layers[layers.length - 1].id),
);
}
}, [dispatch, layers, selectedLayerId]);
const selectLayer = useCallback(
(layerId: string) => {
dispatch(editorActions.setSelectedTilemapLayerId(layerId));
},
[dispatch],
);
Iif (!scene) return null;
const tilemap = hasTilemap ? { layers } : undefined;
return (
<>
<SplitPaneHeader
collapsed={false}
buttons={
tilemap ? (
<Button
variant="transparent"
size="small"
title={l10n("FIELD_ADD_LAYER")}
onClick={() => {
const action = entitiesActions.addTilemapLayer({
sceneId,
afterLayerId: selectedLayerId,
});
dispatch(action);
selectLayer(action.payload.layerId);
}}
>
<PlusIcon />
</Button>
) : null
}
borderTop
>
{l10n("FIELD_LAYERS")}
</SplitPaneHeader>
{tilemap && (
<FlatList
items={displayLayers}
selectedId={selectedLayerId}
setSelectedId={selectLayer}
height={displayLayers.length * 25}
onKeyDown={(e) => {
if (e.key === "Enter" && selectedLayerId) {
setRenameLayerId(selectedLayerId);
}
}}
>
{({ item: layer }) => (
<EntityListItemDnD
item={layer}
type="custom"
dragType={ItemTypes.TILEMAP_LAYER}
acceptTypes={layerDragTypes}
onDrop={(draggedLayer, targetLayer) => {
const draggedIndex = layers.findIndex(
(candidate) => candidate.id === draggedLayer.id,
);
const targetIndex = layers.findIndex(
(candidate) => candidate.id === targetLayer.id,
);
Iif (
draggedIndex < 0 ||
targetIndex < 0 ||
draggedIndex === targetIndex
) {
return;
}
dispatch(
entitiesActions.moveTilemapLayer({
sceneId,
layerId: draggedLayer.id,
direction: targetIndex - draggedIndex,
}),
);
}}
icon={
<VisibilityButton $visible={layer.visible}>
<Button
size="small"
variant="transparent"
title={
layer.visible
? l10n("FIELD_HIDE_LAYER")
: l10n("FIELD_SHOW_LAYER")
}
onClick={(e) => {
e.stopPropagation();
dispatch(
entitiesActions.editTilemapLayer({
sceneId,
layerId: layer.id,
changes: { visible: !layer.visible },
}),
);
}}
>
{layer.visible ? <EyeOpenIcon /> : <EyeClosedIcon />}
</Button>
</VisibilityButton>
}
rename={renameLayerId === layer.id}
onRename={(name) => {
dispatch(
entitiesActions.editTilemapLayer({
sceneId,
layerId: layer.id,
changes: { name },
}),
);
setRenameLayerId("");
}}
onRenameCancel={() => setRenameLayerId("")}
renderContextMenu={() =>
renderTilemapLayerContextMenu({
dispatch,
sceneId,
layerId: layer.id,
layerIndex: layers.findIndex(
(candidate) => candidate.id === layer.id,
),
layerCount: layers.length,
visible: layer.visible,
onRename: () => setRenameLayerId(layer.id),
})
}
/>
)}
</FlatList>
)}
</>
);
};
export default React.memo(SceneTilemapLayersPane);
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