build: Migrate to flat project structure

This change updates the project structure to become flattened.
Previously, the simulator, frontend and API each lived into their own
directory.

With this change, all modules of the project live in the top-level
directory of the repository. This should improve discoverability of
modules of the project.

4 files changed, 109 insertions, 0 deletions

diff --git a/opendc-web/opendc-web-ui/src/components/app/map/layers/HoverLayerComponent.js b/opendc-web/opendc-web-ui/src/components/app/map/layers/HoverLayerComponent.js
new file mode 100644
index 00000000..bead87de
--- /dev/null
+++ b/opendc-web/opendc-web-ui/src/components/app/map/layers/HoverLayerComponent.js
@@ -0,0 +1,75 @@
+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
diff --git a/opendc-web/opendc-web-ui/src/components/app/map/layers/MapLayerComponent.js b/opendc-web/opendc-web-ui/src/components/app/map/layers/MapLayerComponent.js
new file mode 100644
index 00000000..8ee14c9c
--- /dev/null
+++ b/opendc-web/opendc-web-ui/src/components/app/map/layers/MapLayerComponent.js
@@ -0,0 +1,17 @@
+import React from 'react'
+import { Group, Layer } from 'react-konva'
+import TopologyContainer from '../../../../containers/app/map/TopologyContainer'
+import Backdrop from '../elements/Backdrop'
+import GridGroup from '../groups/GridGroup'
+
+const MapLayerComponent = ({ mapPosition, mapScale }) => (
+    <Layer>
+        <Group x={mapPosition.x} y={mapPosition.y} scaleX={mapScale} scaleY={mapScale}>
+            <Backdrop />
+            <TopologyContainer />
+            <GridGroup />
+        </Group>
+    </Layer>
+)
+
+export default MapLayerComponent
diff --git a/opendc-web/opendc-web-ui/src/components/app/map/layers/ObjectHoverLayerComponent.js b/opendc-web/opendc-web-ui/src/components/app/map/layers/ObjectHoverLayerComponent.js
new file mode 100644
index 00000000..661fc255
--- /dev/null
+++ b/opendc-web/opendc-web-ui/src/components/app/map/layers/ObjectHoverLayerComponent.js
@@ -0,0 +1,11 @@
+import React from 'react'
+import TilePlusIcon from '../elements/TilePlusIcon'
+import HoverLayerComponent from './HoverLayerComponent'
+
+const ObjectHoverLayerComponent = (props) => (
+    <HoverLayerComponent {...props}>
+        <TilePlusIcon {...props} />
+    </HoverLayerComponent>
+)
+
+export default ObjectHoverLayerComponent
diff --git a/opendc-web/opendc-web-ui/src/components/app/map/layers/RoomHoverLayerComponent.js b/opendc-web/opendc-web-ui/src/components/app/map/layers/RoomHoverLayerComponent.js
new file mode 100644
index 00000000..887e2891
--- /dev/null
+++ b/opendc-web/opendc-web-ui/src/components/app/map/layers/RoomHoverLayerComponent.js
@@ -0,0 +1,6 @@
+import React from 'react'
+import HoverLayerComponent from './HoverLayerComponent'
+
+const RoomHoverLayerComponent = (props) => <HoverLayerComponent {...props} />
+
+export default RoomHoverLayerComponent