git.r.bdr.sh - rbdr/map/blob - Map/Presentation/Base Components/MapRender/MapBlockers.swift

   1 // Copyright (C) 2024 Rubén Beltrán del Río
   2
   3 // This program is free software: you can redistribute it and/or modify
   4 // it under the terms of the GNU General Public License as published by
   5 // the Free Software Foundation, either version 3 of the License, or
   6 // (at your option) any later version.
   7
   8 // This program is distributed in the hope that it will be useful,
   9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 // GNU General Public License for more details.
  12
  13 // You should have received a copy of the GNU General Public License
  14 // along with this program. If not, see https://map.tranquil.systems.
  15 import SwiftUI
  16
  17 struct MapBlockers: View {
  18
  19   let mapSize: CGSize
  20   let vertexSize: CGSize
  21   let blockers: [Blocker]
  22
  23   let cornerSize = CGSize(width: 2.0, height: 2.0)
  24
  25   var body: some View {
  26     ForEach(blockers, id: \.id) { vertex in
  27       Path { path in
  28         path.addRoundedRect(
  29           in: CGRect(
  30             origin: CGPoint(
  31               x: w(vertex.position.x) + 3 * vertexSize.width,
  32               y: h(vertex.position.y) - vertexSize.height * 2 / 3),
  33             size: CGSize(width: vertexSize.width / 2, height: vertexSize.height * 2)
  34           ), cornerSize: cornerSize)
  35       }.fill(Color.Map.blockerColor)
  36     }
  37   }
  38
  39   func h(_ dimension: CGFloat) -> CGFloat {
  40     max(0.0, min(mapSize.height, dimension * mapSize.height / 100.0))
  41   }
  42
  43   func w(_ dimension: CGFloat) -> CGFloat {
  44     max(0.0, min(mapSize.width, dimension * mapSize.width / 100.0))
  45   }
  46 }
  47
  48 #Preview {
  49   MapBlockers(
  50     mapSize: CGSize(width: 400.0, height: 400.0), vertexSize: CGSize(width: 25.0, height: 25.0),
  51     blockers: [
  52       Blocker(id: 0, position: CGPoint(x: 50.0, y: 50.0)),
  53       Blocker(id: 1, position: CGPoint(x: 10.0, y: 20.0)),
  54     ])
  55 }