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import PropTypes from 'prop-types'
import React from 'react'
import { Layer } from 'react-konva'
import HoverTile from '../elements/HoverTile'
import { TILE_SIZE_IN_PIXELS } from '../MapConstants'
class HoverLayerComponent extends React.Component {
static propTypes = {
mouseX: PropTypes.number.isRequired,
mouseY: PropTypes.number.isRequired,
mapPosition: PropTypes.object.isRequired,
mapScale: PropTypes.number.isRequired,
isEnabled: PropTypes.func.isRequired,
onClick: PropTypes.func.isRequired,
}
state = {
positionX: -1,
positionY: -1,
validity: false,
}
componentDidUpdate() {
if (!this.props.isEnabled()) {
return
}
const positionX = Math.floor(
(this.props.mouseX - this.props.mapPosition.x) / (this.props.mapScale * TILE_SIZE_IN_PIXELS)
)
const positionY = Math.floor(
(this.props.mouseY - this.props.mapPosition.y) / (this.props.mapScale * TILE_SIZE_IN_PIXELS)
)
if (positionX !== this.state.positionX || positionY !== this.state.positionY) {
this.setState({
positionX,
positionY,
validity: this.props.isValid(positionX, positionY),
})
}
}
render() {
if (!this.props.isEnabled()) {
return <Layer />
}
const pixelX = this.props.mapScale * this.state.positionX * TILE_SIZE_IN_PIXELS + this.props.mapPosition.x
const pixelY = this.props.mapScale * this.state.positionY * TILE_SIZE_IN_PIXELS + this.props.mapPosition.y
return (
<Layer opacity={0.6}>
<HoverTile
pixelX={pixelX}
pixelY={pixelY}
scale={this.props.mapScale}
isValid={this.state.validity}
onClick={() =>
this.state.validity ? this.props.onClick(this.state.positionX, this.state.positionY) : undefined
}
/>
{this.props.children
? React.cloneElement(this.props.children, {
pixelX,
pixelY,
scale: this.props.mapScale,
})
: undefined}
</Layer>
)
}
}
export default HoverLayerComponent
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