git.r.bdr.sh - rbdr/map/blob - Map/MapRenderComponents/MapBlockers.swift

   1 import SwiftUI
   2
   3 struct MapBlockers: View {
   4
   5   @Environment(\.colorScheme) var colorScheme
   6
   7   let mapSize: CGSize
   8   let vertexSize: CGSize
   9   let blockers: [Blocker]
  10
  11   var color: Color {
  12     MapColor.colorForScheme(colorScheme).blocker
  13   }
  14
  15   let cornerSize = CGSize(width: 2.0, height: 2.0)
  16
  17   var body: some View {
  18     ForEach(blockers, id: \.id) { vertex in
  19       Path { path in
  20         path.addRoundedRect(
  21           in: CGRect(
  22             origin: CGPoint(
  23               x: w(vertex.position.x) + 3 * vertexSize.width,
  24               y: h(vertex.position.y) - vertexSize.height * 2 / 3),
  25             size: CGSize(width: vertexSize.width / 2, height: vertexSize.height * 2)
  26           ), cornerSize: cornerSize)
  27       }.fill(color)
  28     }
  29   }
  30
  31   func h(_ dimension: CGFloat) -> CGFloat {
  32     max(0.0, min(mapSize.height, dimension * mapSize.height / 100.0))
  33   }
  34
  35   func w(_ dimension: CGFloat) -> CGFloat {
  36     max(0.0, min(mapSize.width, dimension * mapSize.width / 100.0))
  37   }
  38 }
  39
  40 struct MapBlockers_Previews: PreviewProvider {
  41   static var previews: some View {
  42     MapBlockers(
  43       mapSize: CGSize(width: 400.0, height: 400.0), vertexSize: CGSize(width: 25.0, height: 25.0),
  44       blockers: [
  45         Blocker(id: 0, position: CGPoint(x: 50.0, y: 50.0)),
  46         Blocker(id: 1, position: CGPoint(x: 10.0, y: 20.0)),
  47       ])
  48   }
  49 }