449 lines
15 KiB
C#
449 lines
15 KiB
C#
using Microsoft.Xna.Framework;
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using Microsoft.Xna.Framework.Graphics;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Xml.Linq;
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namespace Subsurface.Items.Components
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{
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class Connection
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{
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private static Sprite connector;
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private static Sprite wireCorner, wireVertical, wireHorizontal;
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//how many wires can be linked to a single connector
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private const int MaxLinked = 5;
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public readonly string name;
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public Wire[] wires;
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private Item item;
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public readonly bool isOutput;
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private static Item draggingConnected;
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int[] wireId;
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public List<Connection> Recipients
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{
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get
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{
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List<Connection> recipients = new List<Connection>();
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for (int i = 0; i<MaxLinked; i++)
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{
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if (wires[i] == null) continue;
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Connection recipient = wires[i].OtherConnection(this);
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if (recipient != null) recipients.Add(recipient);
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}
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return recipients;
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}
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}
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public Item Item
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{
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get { return item; }
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}
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public Connection(XElement element, Item item)
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{
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if (connector == null)
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{
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connector = new Sprite("Content/Items/connector.png", new Vector2(0.5f, 0.5f));
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wireCorner = new Sprite("Content/Items/wireCorner.png", new Vector2(0.5f, 0.1f));
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wireVertical = new Sprite("Content/Items/wireVertical.png", new Vector2(0.5f, 0.5f));
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wireHorizontal = new Sprite("Content/Items/wireHorizontal.png", new Vector2(0.5f, 0.5f));
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}
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this.item = item;
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//recipient = new Connection[MaxLinked];
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wires = new Wire[MaxLinked];
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isOutput = (element.Name.ToString() == "output");
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name = ToolBox.GetAttributeString(element, "name", (isOutput) ? "output" : "input");
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wireId = new int[MaxLinked];
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foreach (XElement subElement in element.Elements())
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{
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int index = -1;
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for (int i = 0; i < MaxLinked; i++)
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{
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if (wireId[i]<1) index = i;
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}
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if (index == -1) break;
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wireId[index] = ToolBox.GetAttributeInt(subElement, "w", -1);
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}
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}
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public int FindEmptyIndex()
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{
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for (int i = 0; i < MaxLinked; i++)
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{
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if (wires[i]==null) return i;
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}
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return -1;
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}
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//public int FindLinkIndex(Item item)
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//{
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// for (int i = 0; i < MaxLinked; i++)
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// {
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// if (item == null && recipient[i] == null) return i;
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// if (recipient[i]!=null && recipient[i].item == item) return i;
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// }
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// return -1;
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//}
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public int FindWireIndex(Item wireItem)
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{
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for (int i = 0; i < MaxLinked; i++)
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{
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if (wires[i] == null && wireItem == null) return i;
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if (wires[i] != null && wires[i].Item == wireItem) return i;
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}
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return -1;
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}
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public void AddLink(int index, Wire wire)
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{
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//linked[index] = connectedItem;
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//recipient[index] = otherConnection;
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wires[index] = wire;
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}
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//public bool AddLink(Item connectedItem, Connection otherConnection)
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//{
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// if (linked.Contains(connectedItem)) return false;
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// for (int i = 0; i<MaxLinked; i++)
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// {
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// if (linked[i]!=null) continue;
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// linked[i] = connectedItem;
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// return true;
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// }
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// return false;
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//}
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public void SendSignal(string signal, Item sender)
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{
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for (int i = 0; i<MaxLinked; i++)
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{
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if (wires[i]==null) continue;
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Connection recipient = wires[i].OtherConnection(this);
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if (recipient == null) continue;
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foreach (ItemComponent ic in recipient.item.components)
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{
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ic.ReceiveSignal(signal, recipient, sender);
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}
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}
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}
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public void ClearConnections()
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{
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for (int i = 0; i<MaxLinked; i++)
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{
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if (wires[i] == null) continue;
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wires[i].RemoveConnection(this);
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wires[i] = null;
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}
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}
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public static void DrawConnections(SpriteBatch spriteBatch, ConnectionPanel panel, Character character)
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{
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int width = 400, height = 200;
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int x = Game1.GraphicsWidth/2 - width/2, y = Game1.GraphicsHeight - height;
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Rectangle panelRect = new Rectangle(x, y, width, height);
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GUI.DrawRectangle(spriteBatch, panelRect, Color.Black, true);
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bool mouseInRect = panelRect.Contains(PlayerInput.MousePosition);
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Vector2 rightPos = new Vector2(x + width - 110, y + 20);
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Vector2 leftPos = new Vector2(x + 110, y + 20);
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float wireInterval = 10.0f;
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float rightWireX = x+width / 2 + wireInterval;
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float leftWireX = x + width / 2 - wireInterval;
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foreach (Connection c in panel.connections)
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{
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//if dragging a wire, let the Inventory know so that the wire can be
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//dropped or dragged from the panel to the players inventory
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if (draggingConnected != null)
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{
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int linkIndex = c.FindWireIndex(draggingConnected);
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if (linkIndex>-1)
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{
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Inventory.draggingItem = c.wires[linkIndex].Item;
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}
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}
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//outputs are drawn at the right side of the panel, inputs at the left
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if (c.isOutput)
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{
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c.Draw(spriteBatch, panel.Item, rightPos,
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new Vector2(rightPos.X + 20, rightPos.Y),
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new Vector2(rightWireX, y + height), mouseInRect);
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rightPos.Y += 30;
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rightWireX += wireInterval;
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}
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else
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{
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c.Draw(spriteBatch, panel.Item, leftPos,
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new Vector2(leftPos.X - 100, leftPos.Y),
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new Vector2(leftWireX, y + height), mouseInRect);
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leftPos.Y += 30;
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leftWireX -= wireInterval;
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}
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}
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//draw a wire for all the items that are linked to this item, but not to any of the signal connections
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//foreach (MapEntity entity in panel.Item.linkedTo)
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//{
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// Item linked = entity as Item;
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// if (linked == null) continue;
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// //if the item is already connected, don't draw it again
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// if (panel.connections.Find(c => c.linked.Contains()) != null) continue;
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// DrawWire(spriteBatch, false, linked,
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// new Vector2(leftPos.X + (leftPos.Y - y), y + height- 50),
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// new Vector2(leftPos.X + (leftPos.Y - y), y + height), mouseInRect);
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// leftPos.Y += 30.0f;
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//}
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//if the character using the panel has a wire item equipped
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//and the wire hasn't been connected yet, draw it on the panel
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for (int i = 0; i < character.SelectedItems.Length; i++ )
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{
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Item selectedItem = character.SelectedItems[i];
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if (selectedItem == null) continue;
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Wire wireComponent = selectedItem.GetComponent<Wire>();
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if (wireComponent != null &&
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panel.connections.Find(c => c.wires.Contains(wireComponent)) == null)
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{
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DrawWire(spriteBatch, selectedItem, selectedItem,
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new Vector2(x + width / 2, y + height - 100),
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new Vector2(x + width / 2, y + height), mouseInRect);
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if (draggingConnected == selectedItem) Inventory.draggingItem = selectedItem;
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break;
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}
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}
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//stop dragging a wire item if cursor is outside the panel
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if (mouseInRect) Inventory.draggingItem = null;
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if (draggingConnected != null)
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{
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if (!PlayerInput.LeftButtonDown())
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{
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panel.Item.NewComponentEvent(panel, true);
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draggingConnected = null;
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}
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}
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}
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private void Draw(SpriteBatch spriteBatch, Item item, Vector2 position, Vector2 labelPos, Vector2 wirePosition, bool mouseIn)
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{
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spriteBatch.DrawString(GUI.font, name, new Vector2(labelPos.X, labelPos.Y-10), Color.White);
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GUI.DrawRectangle(spriteBatch, new Rectangle((int)position.X-10, (int)position.Y-10, 20, 20), Color.White);
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for (int i = 0; i<MaxLinked; i++)
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{
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if (wires[i]==null) continue;
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Connection recipient = wires[i].OtherConnection(this);
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DrawWire(spriteBatch, wires[i].Item, (recipient == null) ? wires[i].Item : recipient.item, position, wirePosition, mouseIn);
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wirePosition.X += (isOutput) ? -20 : 20;
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}
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//dragging a wire and released the mouse -> see if the wire can be connected to this connection
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if (draggingConnected != null
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&& !PlayerInput.LeftButtonDown())
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{
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//close enough to the connector -> make a new connection
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if (Vector2.Distance(position, PlayerInput.MousePosition) < 10.0f)
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{
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//find an empty cell for the new connection
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int index = FindWireIndex(null);
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Wire wireComponent = draggingConnected.GetComponent<Wire>();
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if (index>-1 && wireComponent!=null && !wires.Contains(wireComponent))
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{
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wires[index] = wireComponent;
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wireComponent.Connect(this);
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}
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}
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//far away -> disconnect if the wire is linked to this connector
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else
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{
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int index = FindWireIndex(draggingConnected);
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if (index>-1)
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{
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wires[index].RemoveConnection(this);
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wires[index] = null;
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}
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}
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}
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}
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private static void DrawWire(SpriteBatch spriteBatch, Item wireItem, Item item, Vector2 end, Vector2 start, bool mouseIn)
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{
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if (draggingConnected == wireItem)
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{
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if (!mouseIn) return;
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end = PlayerInput.MousePosition;
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}
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bool mouseOn = false;
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int textX = (int)start.X;
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float connLength = 10.0f;
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if (Math.Abs(end.X-start.X)<connLength*6.0f)
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{
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wireVertical.DrawTiled(spriteBatch,
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new Vector2(end.X - wireVertical.size.X / 2, end.Y + connLength),
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new Vector2(wireVertical.size.X, (float)Math.Abs(end.Y - start.Y)), Color.White);
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textX = (int)end.X;
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connector.Draw(spriteBatch, end);
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}
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else
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{
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Vector2 pos = new Vector2(start.X, end.Y + wireCorner.size.Y) - wireVertical.size / 2;
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Vector2 size = new Vector2(wireVertical.size.X, (float)Math.Abs((end.Y + wireCorner.size.Y) - start.Y));
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wireVertical.DrawTiled(spriteBatch, pos, size, Color.White);
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Rectangle rect = new Rectangle((int)pos.X, (int)pos.Y, (int)size.X, (int)size.Y);
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if (rect.Contains(PlayerInput.MousePosition)) mouseOn = true;
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float dir = (end.X > start.X) ? -1.0f : 1.0f;
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wireCorner.Draw(spriteBatch,
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new Vector2(start.X, end.Y), 0.0f, 1.0f,
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(end.X > start.X) ? SpriteEffects.None : SpriteEffects.FlipHorizontally);
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float wireStartX = start.X - wireCorner.size.X / 2 * dir;
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float wireEndX = end.X + connLength * dir;
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pos = new Vector2(Math.Min(wireStartX,wireEndX), end.Y - wireVertical.size.Y / 2);
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size = new Vector2(Math.Abs(wireStartX - wireEndX), wireHorizontal.size.Y);
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wireHorizontal.DrawTiled(spriteBatch, pos, size, Color.White);
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rect = new Rectangle((int)pos.X, (int)pos.Y, (int)size.X, (int)size.Y);
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if (rect.Contains(PlayerInput.MousePosition)) mouseOn = true;
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connector.Draw(spriteBatch, end, -MathHelper.PiOver2*dir);
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}
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if (draggingConnected == null)
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{
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if (mouseOn || Vector2.Distance(end, PlayerInput.MousePosition)<20.0f)
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{
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item.IsHighlighted = true;
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//start dragging the wire
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if (PlayerInput.LeftButtonDown()) draggingConnected = wireItem;
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}
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}
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spriteBatch.DrawString(GUI.font, item.Name,
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new Vector2(textX, start.Y-30),
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mouseOn ? Color.Gold : Color.White,
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MathHelper.PiOver2,
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GUI.font.MeasureString(item.Name)*0.5f,
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1.0f, SpriteEffects.None, 0.0f);
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}
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public void Save(XElement parentElement)
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{
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XElement newElement = new XElement(isOutput ? "output" : "input", new XAttribute("name", name));
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Array.Sort(wires, delegate(Wire wire1, Wire wire2)
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{
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if (wire1 == null) return 1;
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if (wire2 == null) return -1;
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return wire1.Item.ID.CompareTo(wire2.Item.ID);
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});
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for (int i = 0; i < MaxLinked; i++ )
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{
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if (wires[i] == null) continue;
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//Connection recipient = wires[i].OtherConnection(this);
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//int connectionIndex = recipient.item.Connections.FindIndex(x => x == recipient);
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newElement.Add(new XElement("link",
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new XAttribute("w", wires[i].Item.ID.ToString())));
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}
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parentElement.Add(newElement);
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}
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public void ConnectLinked()
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{
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if (wireId == null) return;
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for (int i = 0; i < MaxLinked; i++)
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{
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if (wireId[i] == -1) continue;
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Item wireItem = MapEntity.FindEntityByID(wireId[i]) as Item;
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if (wireItem == null) continue;
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wires[i] = wireItem.GetComponent<Wire>();
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if (wires[i]!=null)
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{
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wires[i].Item.body.Enabled = false;
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wires[i].Connect(this, false);
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}
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}
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wireId = null;
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}
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}
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}
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