CnC_Remastered_Collection

UnitTool.cs (14343B)

---

 //
 // Copyright 2020 Electronic Arts Inc.
 //
 // The Command & Conquer Map Editor and corresponding source code is free 
 // software: you can redistribute it and/or modify it under the terms of 
 // the GNU General Public License as published by the Free Software Foundation, 
 // either version 3 of the License, or (at your option) any later version.
 
 // The Command & Conquer Map Editor and corresponding source code is distributed 
 // in the hope that it will be useful, but with permitted additional restrictions 
 // under Section 7 of the GPL. See the GNU General Public License in LICENSE.TXT 
 // distributed with this program. You should have received a copy of the 
 // GNU General Public License along with permitted additional restrictions 
 // with this program. If not, see https://github.com/electronicarts/CnC_Remastered_Collection
 using MobiusEditor.Controls;
 using MobiusEditor.Event;
 using MobiusEditor.Interface;
 using MobiusEditor.Model;
 using MobiusEditor.Render;
 using MobiusEditor.Utility;
 using MobiusEditor.Widgets;
 using System;
 using System.ComponentModel;
 using System.Drawing;
 using System.Linq;
 using System.Windows.Forms;
 
 namespace MobiusEditor.Tools
 {
     public class UnitTool : ViewTool
     {
         private readonly TypeComboBox unitTypeComboBox;
         private readonly MapPanel unitTypeMapPanel;
         private readonly ObjectProperties objectProperties;
 
         private Map previewMap;
         protected override Map RenderMap => previewMap;
 
         private bool placementMode;
 
         private readonly Unit mockUnit;
 
         private Unit selectedUnit;
         private ObjectPropertiesPopup selectedObjectProperties;
 
         private UnitType selectedUnitType;
         private UnitType SelectedUnitType
         {
             get => selectedUnitType;
             set
             {
                 if (selectedUnitType != value)
                 {
                     if (placementMode && (selectedUnitType != null))
                     {
                         mapPanel.Invalidate(map, Rectangle.Inflate(new Rectangle(navigationWidget.MouseCell, new Size(1, 1)), 1, 1));
                     }
 
                     selectedUnitType = value;
                     unitTypeComboBox.SelectedValue = selectedUnitType;
 
                     if (placementMode && (selectedUnitType != null))
                     {
                         mapPanel.Invalidate(map, Rectangle.Inflate(new Rectangle(navigationWidget.MouseCell, new Size(1, 1)), 1, 1));
                     }
 
                     mockUnit.Type = selectedUnitType;
 
                     RefreshMapPanel();
                 }
             }
         }
 
         public UnitTool(MapPanel mapPanel, MapLayerFlag layers, ToolStripStatusLabel statusLbl, TypeComboBox unitTypeComboBox, MapPanel unitTypeMapPanel, ObjectProperties objectProperties, IGamePlugin plugin, UndoRedoList<UndoRedoEventArgs> url)
             : base(mapPanel, layers, statusLbl, plugin, url)
         {
             previewMap = map;
 
             mockUnit = new Unit()
             {
                 Type = unitTypeComboBox.Types.First() as UnitType,
                 House = map.Houses.First().Type,
                 Strength = 256,
                 Direction = map.DirectionTypes.Where(d => d.Equals(FacingType.North)).First(),
                 Mission = map.MissionTypes.Where(m => m.Equals("Guard")).FirstOrDefault() ?? map.MissionTypes.First()
             };
             mockUnit.PropertyChanged += MockUnit_PropertyChanged;
 
             this.mapPanel.MouseDown += MapPanel_MouseDown;
             this.mapPanel.MouseUp += MapPanel_MouseUp;
             this.mapPanel.MouseDoubleClick += MapPanel_MouseDoubleClick;
             this.mapPanel.MouseMove += MapPanel_MouseMove;
             (this.mapPanel as Control).KeyDown += UnitTool_KeyDown;
             (this.mapPanel as Control).KeyUp += UnitTool_KeyUp;
 
             this.unitTypeComboBox = unitTypeComboBox;
             this.unitTypeComboBox.SelectedIndexChanged += UnitTypeComboBox_SelectedIndexChanged;
 
             this.unitTypeMapPanel = unitTypeMapPanel;
             this.unitTypeMapPanel.BackColor = Color.White;
             this.unitTypeMapPanel.MaxZoom = 1;
 
             this.objectProperties = objectProperties;
             this.objectProperties.Object = mockUnit;
 
             navigationWidget.MouseCellChanged += MouseoverWidget_MouseCellChanged;
 
             SelectedUnitType = mockUnit.Type;
 
             UpdateStatus();
         }
 
         private void MapPanel_MouseDoubleClick(object sender, MouseEventArgs e)
         {
             if (Control.ModifierKeys != Keys.None)
             {
                 return;
             }
 
             if (map.Metrics.GetCell(navigationWidget.MouseCell, out int cell))
             {
                 if (map.Technos[cell] is Unit unit)
                 {
                     selectedUnit = null;
 
                     selectedObjectProperties?.Close();
                     selectedObjectProperties = new ObjectPropertiesPopup(objectProperties.Plugin, unit);
                     selectedObjectProperties.Closed += (cs, ce) =>
                     {
                         navigationWidget.Refresh();
                     };
 
                     unit.PropertyChanged += SelectedUnit_PropertyChanged;
 
                     selectedObjectProperties.Show(mapPanel, mapPanel.PointToClient(Control.MousePosition));
 
                     UpdateStatus();
                 }
             }
         }
 
         private void MockUnit_PropertyChanged(object sender, PropertyChangedEventArgs e)
         {
             RefreshMapPanel();
         }
 
         private void SelectedUnit_PropertyChanged(object sender, PropertyChangedEventArgs e)
         {
             mapPanel.Invalidate(map, sender as Unit);
         }
 
         private void UnitTypeComboBox_SelectedIndexChanged(object sender, EventArgs e)
         {
             SelectedUnitType = unitTypeComboBox.SelectedValue as UnitType;
         }
 
         private void UnitTool_KeyDown(object sender, KeyEventArgs e)
         {
             if (e.KeyCode == Keys.ShiftKey)
             {
                 EnterPlacementMode();
             }
         }
 
         private void UnitTool_KeyUp(object sender, KeyEventArgs e)
         {
             if (e.KeyCode == Keys.ShiftKey)
             {
                 ExitPlacementMode();
             }
         }
 
         private void MapPanel_MouseMove(object sender, MouseEventArgs e)
         {
             if (!placementMode && (Control.ModifierKeys == Keys.Shift))
             {
                 EnterPlacementMode();
             }
             else if (placementMode && (Control.ModifierKeys == Keys.None))
             {
                 ExitPlacementMode();
             }
         }
 
         private void MapPanel_MouseDown(object sender, MouseEventArgs e)
         {
             if (placementMode)
             {
                 if (e.Button == MouseButtons.Left)
                 {
                     AddUnit(navigationWidget.MouseCell);
                 }
                 else if (e.Button == MouseButtons.Right)
                 {
                     RemoveUnit(navigationWidget.MouseCell);
                 }
             }
             else if (e.Button == MouseButtons.Left)
             {
                 SelectUnit(navigationWidget.MouseCell);
             }
             else if (e.Button == MouseButtons.Right)
             {
                 PickUnit(navigationWidget.MouseCell);
             }
         }
 
         private void MapPanel_MouseUp(object sender, MouseEventArgs e)
         {
             if (selectedUnit != null)
             {
                 selectedUnit = null;
 
                 UpdateStatus();
             }
         }
 
         private void MouseoverWidget_MouseCellChanged(object sender, MouseCellChangedEventArgs e)
         {
             if (placementMode)
             {
                 if (SelectedUnitType != null)
                 {
                     mapPanel.Invalidate(map, Rectangle.Inflate(new Rectangle(e.OldCell, new Size(1, 1)), 1, 1));
                     mapPanel.Invalidate(map, Rectangle.Inflate(new Rectangle(e.NewCell, new Size(1, 1)), 1, 1));
                 }
             }
             else if (selectedUnit != null)
             {
                 var oldLocation = map.Technos[selectedUnit].Value;
                 mapPanel.Invalidate(map, selectedUnit);
                 map.Technos.Remove(selectedUnit);
                 if (map.Technos.Add(e.NewCell, selectedUnit))
                 {
                     mapPanel.Invalidate(map, selectedUnit);
                     plugin.Dirty = true;
                 }
                 else
                 {
                     map.Technos.Add(oldLocation, selectedUnit);
                 }
             }
         }
 
         private void AddUnit(Point location)
         {
             if (SelectedUnitType != null)
             {
                 var unit = mockUnit.Clone();
                 if (map.Technos.Add(location, unit))
                 {
                     mapPanel.Invalidate(map, unit);
                     plugin.Dirty = true;
                 }
             }
         }
 
         private void RemoveUnit(Point location)
         {
             if (map.Technos[location] is Unit unit)
             {
                 mapPanel.Invalidate(map, unit);
                 map.Technos.Remove(unit);
                 plugin.Dirty = true;
             }
         }
 
         private void EnterPlacementMode()
         {
             if (placementMode)
             {
                 return;
             }
 
             placementMode = true;
 
             navigationWidget.MouseoverSize = Size.Empty;
 
             if (SelectedUnitType != null)
             {
                 mapPanel.Invalidate(map, Rectangle.Inflate(new Rectangle(navigationWidget.MouseCell, new Size(1, 1)), 1, 1));
             }
 
             UpdateStatus();
         }
 
         private void ExitPlacementMode()
         {
             if (!placementMode)
             {
                 return;
             }
 
             placementMode = false;
 
             navigationWidget.MouseoverSize = new Size(1, 1);
 
             if (SelectedUnitType != null)
             {
                 mapPanel.Invalidate(map, Rectangle.Inflate(new Rectangle(navigationWidget.MouseCell, new Size(1, 1)), 1, 1));
             }
 
             UpdateStatus();
         }
 
         private void PickUnit(Point location)
         {
             if (map.Metrics.GetCell(location, out int cell))
             {
                 if (map.Technos[cell] is Unit unit)
                 {
                     SelectedUnitType = unit.Type;
                     mockUnit.House = unit.House;
                     mockUnit.Strength = unit.Strength;
                     mockUnit.Direction = unit.Direction;
                     mockUnit.Mission = unit.Mission;
                     mockUnit.Trigger = unit.Trigger;
                 }
             }
         }
 
         private void SelectUnit(Point location)
         {
             if (map.Metrics.GetCell(location, out int cell))
             {
                 selectedUnit = map.Technos[cell] as Unit;
             }
 
             UpdateStatus();
         }
 
         private void RefreshMapPanel()
         {
             if (mockUnit.Type != null)
             {
                 var unitPreview = new Bitmap(Globals.TileWidth * 3, Globals.TileHeight * 3);
                 using (var g = Graphics.FromImage(unitPreview))
                 {
                     MapRenderer.Render(plugin.GameType, map.Theater, new Point(1, 1), Globals.TileSize, mockUnit).Item2(g);
                 }
                 unitTypeMapPanel.MapImage = unitPreview;
             }
             else
             {
                 unitTypeMapPanel.MapImage = null;
             }
         }
 
         private void UpdateStatus()
         {
             if (placementMode)
             {
                 statusLbl.Text = "Left-Click to place unit, Right-Click to remove unit";
             }
             else if (selectedUnit != null)
             {
                 statusLbl.Text = "Drag mouse to move unit";
             }
             else
             {
                 statusLbl.Text = "Shift to enter placement mode, Left-Click drag to move unit, Double-Click update unit properties, Right-Click to pick unit";
             }
         }
 
         protected override void PreRenderMap()
         {
             base.PreRenderMap();
 
             previewMap = map.Clone();
             if (placementMode)
             {
                 var location = navigationWidget.MouseCell;
                 if (SelectedUnitType != null)
                 {
                     var unit = mockUnit.Clone();
                     unit.Tint = Color.FromArgb(128, Color.White);
                     if (previewMap.Technos.Add(location, unit))
                     {
                         mapPanel.Invalidate(previewMap, unit);
                     }
                 }
             }
         }
 
         protected override void PostRenderMap(Graphics graphics)
         {
             base.PostRenderMap(graphics);
 
             var unitPen = new Pen(Color.Green, 4.0f);
             foreach (var (topLeft, _) in map.Technos.OfType<Unit>())
             {
                 var bounds = new Rectangle(new Point(topLeft.X * Globals.TileWidth, topLeft.Y * Globals.TileHeight), Globals.TileSize);
                 graphics.DrawRectangle(unitPen, bounds);
             }
         }
 
         #region IDisposable Support
         private bool disposedValue = false;
 
         protected override void Dispose(bool disposing)
         {
             if (!disposedValue)
             {
                 if (disposing)
                 {
                     selectedObjectProperties?.Close();
 
                     mapPanel.MouseDown -= MapPanel_MouseDown;
                     mapPanel.MouseUp -= MapPanel_MouseUp;
                     mapPanel.MouseDoubleClick -= MapPanel_MouseDoubleClick;
                     mapPanel.MouseMove -= MapPanel_MouseMove;
                     (mapPanel as Control).KeyDown -= UnitTool_KeyDown;
                     (mapPanel as Control).KeyUp -= UnitTool_KeyUp;
 
                     unitTypeComboBox.SelectedIndexChanged -= UnitTypeComboBox_SelectedIndexChanged;
 
                     navigationWidget.MouseCellChanged -= MouseoverWidget_MouseCellChanged;
                 }
                 disposedValue = true;
             }
 
             base.Dispose(disposing);
         }
         #endregion
     }
 }