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

   1 /*
   2  Copyright (C) 2024 Rubén Beltrán del Río
   3
   4  This program is free software: you can redistribute it and/or modify
   5  it under the terms of the GNU General Public License as published by
   6  the Free Software Foundation, either version 3 of the License, or
   7  (at your option) any later version.
   8
   9  This program is distributed in the hope that it will be useful,
  10  but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  GNU General Public License for more details.
  13
  14  You should have received a copy of the GNU General Public License
  15  along with this program. If not, see https://map.tranquil.systems.
  16  */
  17 import SwiftUI
  18
  19 struct MapBlockers: View {
  20
  21   let mapSize: CGSize
  22   let vertexSize: CGSize
  23   let blockers: [Blocker]
  24
  25   let cornerSize = CGSize(width: 2.0, height: 2.0)
  26
  27   var body: some View {
  28     ForEach(blockers, id: \.id) { vertex in
  29       Path { path in
  30         path.addRoundedRect(
  31           in: CGRect(
  32             origin: CGPoint(
  33               x: w(vertex.position.x) + 3 * vertexSize.width,
  34               y: h(vertex.position.y) - vertexSize.height * 2 / 3),
  35             size: CGSize(width: vertexSize.width / 2, height: vertexSize.height * 2)
  36           ), cornerSize: cornerSize)
  37       }.fill(Color.map.blockerColor)
  38     }
  39   }
  40
  41   func h(_ dimension: CGFloat) -> CGFloat {
  42     max(0.0, min(mapSize.height, dimension * mapSize.height / 100.0))
  43   }
  44
  45   func w(_ dimension: CGFloat) -> CGFloat {
  46     max(0.0, min(mapSize.width, dimension * mapSize.width / 100.0))
  47   }
  48 }
  49
  50 #Preview {
  51   MapBlockers(
  52     mapSize: CGSize(width: 400.0, height: 400.0), vertexSize: CGSize(width: 25.0, height: 25.0),
  53     blockers: [
  54       Blocker(id: 0, position: CGPoint(x: 50.0, y: 50.0)),
  55       Blocker(id: 1, position: CGPoint(x: 10.0, y: 20.0)),
  56     ])
  57 }