From 90ef3532881a1af302d70c607c613e633deef4fd Mon Sep 17 00:00:00 2001
From: Louis Pearson <louispearson@librem.one>
Date: Tue, 18 Jan 2022 00:05:03 -0700
Subject: [PATCH] Wires can be placed into plugs

---
 assets/maps/map.zig   |   6 +-
 assets/maps/test.json |  32 +++++++++-
 assets/maps/test.tmx  |  16 +++--
 src/ecs.zig           |  52 ++++++++++++-----
 src/main.zig          | 132 ++++++++++++++++++++++++++++++++++++++----
 5 files changed, 201 insertions(+), 37 deletions(-)

diff --git a/assets/maps/map.zig b/assets/maps/map.zig
index 3892ca5..6a79072 100644
--- a/assets/maps/map.zig
+++ b/assets/maps/map.zig
@@ -1,6 +1,6 @@
 const std = @import("std");
 const Vec2 = std.meta.Vector(2,i32);
 const Wire = struct { p1: Vec2, p2: Vec2, a1: bool, a2: bool };
-pub const solid: [400]u8 = .{ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 1, 1, 1, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 1, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 1, 39, 1, 1, 1, 1, 1, 1, 1, 50, 19, 19, 19, 19, 19, 19, 19, 19, 1, 1, 1, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 1, 39, 1, 1, 1, 50, 65, 19, 19, 19, 19, 19, 19, 19, 19, 19, 52, 1, 37, 1, 1, 39, 1, 1, 1, 1, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 1, 36, 52, 1, 1, 1, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 1, 39, 1, 1, 1, 1, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 1, 39, 1, 1, 1, 50, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 1, 39, 1, 1, 1, 1, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 1, 36, 52, 1, 1, 1, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 1, 39, 1, 1, 1, 1, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 1, 39, 1, 1, 1, 50, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 1, 39, 1, 1, 1, 1, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 54, 66, 52, 1, 1, 1, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 33, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 51, 1, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 };
-pub const conduit: [400]u8 = .{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 131, 131, 180, 0, 0, 0, 0, 0, 0, 178, 180, 0, 0, 0, 0, 0, 0, 178, 130, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 163, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
-pub const wire: [2]Wire = [_]Wire{.{.a1 = true, .a2 = true,.p1 = Vec2{ 20, 20 },.p2 = Vec2{ 76, 20 },}, .{.a1 = true, .a2 = false,.p1 = Vec2{ 84, 19 },.p2 = Vec2{ 139, 20 },}, };
+pub const solid: [400]u8 = .{ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 1, 1, 1, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 1, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 21, 22, 1, 1, 1, 39, 1, 1, 1, 1, 1, 1, 1, 50, 19, 19, 19, 19, 19, 19, 54, 54, 1, 1, 1, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 1, 39, 1, 1, 1, 50, 65, 19, 19, 19, 19, 19, 19, 19, 19, 19, 52, 1, 37, 1, 1, 39, 1, 1, 1, 1, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 1, 36, 52, 1, 1, 1, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 1, 39, 1, 1, 1, 1, 20, 19, 19, 19, 52, 1, 1, 1, 1, 1, 1, 1, 37, 1, 1, 39, 1, 1, 1, 50, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 1, 39, 1, 1, 1, 1, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 1, 36, 52, 1, 1, 1, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 1, 39, 1, 1, 1, 1, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 1, 39, 1, 1, 1, 50, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 1, 39, 1, 1, 1, 1, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 54, 66, 52, 1, 1, 1, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 33, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 51, 1, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 };
+pub const conduit: [400]u8 = .{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 131, 131, 180, 0, 0, 0, 0, 0, 0, 178, 180, 0, 0, 0, 0, 0, 0, 178, 130, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 147, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 163, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
+pub const wire: [3]Wire = [_]Wire{.{.a1 = true, .a2 = true,.p1 = Vec2{ 20, 20 },.p2 = Vec2{ 76, 20 },}, .{.a1 = true, .a2 = false,.p1 = Vec2{ 84, 19 },.p2 = Vec2{ 139, 20 },}, .{.a1 = true, .a2 = false,.p1 = Vec2{ 60, 68 },.p2 = Vec2{ 117, 69 },}, };
diff --git a/assets/maps/test.json b/assets/maps/test.json
index dc0ebf8..5494acf 100644
--- a/assets/maps/test.json
+++ b/assets/maps/test.json
@@ -3,7 +3,7 @@
  "infinite":false,
  "layers":[
         {
-         "data":[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 1, 1, 1, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 1, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 1, 39, 1, 1, 1, 1, 1, 1, 1, 50, 19, 19, 19, 19, 19, 19, 19, 19, 1, 1, 1, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 1, 39, 1, 1, 1, 50, 65, 19, 19, 19, 19, 19, 19, 19, 19, 19, 52, 1, 37, 1, 1, 39, 1, 1, 1, 1, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 1, 36, 52, 1, 1, 1, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 1, 39, 1, 1, 1, 1, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 1, 39, 1, 1, 1, 50, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 1, 39, 1, 1, 1, 1, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 1, 36, 52, 1, 1, 1, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 1, 39, 1, 1, 1, 1, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 1, 39, 1, 1, 1, 50, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 1, 39, 1, 1, 1, 1, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 54, 66, 52, 1, 1, 1, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 33, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 51, 1, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1],
+         "data":[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 1, 1, 1, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 1, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 21, 22, 1, 1, 1, 39, 1, 1, 1, 1, 1, 1, 1, 50, 19, 19, 19, 19, 19, 19, 54, 54, 1, 1, 1, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 1, 39, 1, 1, 1, 50, 65, 19, 19, 19, 19, 19, 19, 19, 19, 19, 52, 1, 37, 1, 1, 39, 1, 1, 1, 1, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 1, 36, 52, 1, 1, 1, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 1, 39, 1, 1, 1, 1, 20, 19, 19, 19, 52, 1, 1, 1, 1, 1, 1, 1, 37, 1, 1, 39, 1, 1, 1, 50, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 1, 39, 1, 1, 1, 1, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 1, 36, 52, 1, 1, 1, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 1, 39, 1, 1, 1, 1, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 1, 39, 1, 1, 1, 50, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 1, 39, 1, 1, 1, 1, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 37, 1, 54, 66, 52, 1, 1, 1, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 33, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 51, 1, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1],
          "height":20,
          "id":1,
          "name":"solid",
@@ -15,7 +15,7 @@
          "y":0
         }, 
         {
-         "data":[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 131, 131, 180, 0, 0, 0, 0, 0, 0, 178, 180, 0, 0, 0, 0, 0, 0, 178, 130, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 163, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
+         "data":[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 131, 131, 180, 0, 0, 0, 0, 0, 0, 178, 180, 0, 0, 0, 0, 0, 0, 178, 130, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 147, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 163, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
          "height":20,
          "id":2,
          "name":"conduit",
@@ -76,6 +76,32 @@
                  "width":0,
                  "x":84.125,
                  "y":19.875
+                }, 
+                {
+                 "height":0,
+                 "id":7,
+                 "name":"",
+                 "polyline":[
+                        {
+                         "x":0,
+                         "y":0
+                        }, 
+                        {
+                         "x":57.2727272727273,
+                         "y":1.27272727272727
+                        }],
+                 "properties":[
+                        {
+                         "name":"anchor2",
+                         "type":"bool",
+                         "value":false
+                        }],
+                 "rotation":0,
+                 "type":"wire",
+                 "visible":true,
+                 "width":0,
+                 "x":60,
+                 "y":68.1818181818182
                 }],
          "opacity":1,
          "type":"objectgroup",
@@ -84,7 +110,7 @@
          "y":0
         }],
  "nextlayerid":4,
- "nextobjectid":7,
+ "nextobjectid":8,
  "orientation":"orthogonal",
  "renderorder":"right-down",
  "tiledversion":"1.7.2",
diff --git a/assets/maps/test.tmx b/assets/maps/test.tmx
index c2281a9..f1d028b 100644
--- a/assets/maps/test.tmx
+++ b/assets/maps/test.tmx
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<map version="1.5" tiledversion="1.7.2" orientation="orthogonal" renderorder="right-down" width="20" height="20" tilewidth="8" tileheight="8" infinite="0" nextlayerid="4" nextobjectid="7">
+<map version="1.5" tiledversion="1.7.2" orientation="orthogonal" renderorder="right-down" width="20" height="20" tilewidth="8" tileheight="8" infinite="0" nextlayerid="4" nextobjectid="8">
  <editorsettings>
   <export target="test.json" format="json"/>
  </editorsettings>
@@ -9,13 +9,13 @@
 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
 1,1,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,1,1,
 1,39,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,37,1,
-1,39,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,37,1,
-1,39,1,1,1,1,1,1,1,50,19,19,19,19,19,19,19,19,1,1,
+1,39,1,1,1,1,1,1,1,1,1,1,1,1,1,1,21,22,1,1,
+1,39,1,1,1,1,1,1,1,50,19,19,19,19,19,19,54,54,1,1,
 1,39,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,37,1,
 1,39,1,1,1,50,65,19,19,19,19,19,19,19,19,19,52,1,37,1,
 1,39,1,1,1,1,20,1,1,1,1,1,1,1,1,1,1,1,37,1,
 1,36,52,1,1,1,20,1,1,1,1,1,1,1,1,1,1,1,37,1,
-1,39,1,1,1,1,20,1,1,1,1,1,1,1,1,1,1,1,37,1,
+1,39,1,1,1,1,20,19,19,19,52,1,1,1,1,1,1,1,37,1,
 1,39,1,1,1,50,67,1,1,1,1,1,1,1,1,1,1,1,37,1,
 1,39,1,1,1,1,20,1,1,1,1,1,1,1,1,1,1,1,37,1,
 1,36,52,1,1,1,20,1,1,1,1,1,1,1,1,1,1,1,37,1,
@@ -38,7 +38,7 @@
 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,132,0,
 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,132,0,
 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,132,0,
-0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,132,0,
+0,0,0,0,0,0,0,147,0,0,0,0,0,0,0,0,0,0,132,0,
 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,132,0,
 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,132,0,
 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,132,0,
@@ -62,5 +62,11 @@
    </properties>
    <polyline points="0,0 55.5909,0.147727"/>
   </object>
+  <object id="7" type="wire" x="60" y="68.1818">
+   <properties>
+    <property name="anchor2" type="bool" value="false"/>
+   </properties>
+   <polyline points="0,0 57.2727,1.27273"/>
+  </object>
  </objectgroup>
 </map>
diff --git a/src/ecs.zig b/src/ecs.zig
index 43517eb..1e5bec7 100644
--- a/src/ecs.zig
+++ b/src/ecs.zig
@@ -53,17 +53,17 @@ pub fn World(comptime ComponentBase: type) type {
                 return this;
             }
 
-            pub fn require(set: []const ComponentEnum) @This() {
+            pub fn require(require_set: []const ComponentEnum) @This() {
                 var this = @This(){};
-                for (set) |f| {
+                for (require_set) |f| {
                     this.required.insert(f);
                 }
                 return this;
             }
 
-            pub fn exclude(set: []const ComponentEnum) @This() {
+            pub fn exclude(exclude_set: []const ComponentEnum) @This() {
                 var this = @This(){};
-                for (set) |f| {
+                for (exclude_set) |f| {
                     this.excluded.insert(f);
                 }
                 return this;
@@ -92,8 +92,13 @@ pub fn World(comptime ComponentBase: type) type {
             @compileError("unimplemented");
         }
 
-        pub fn get(this: *@This(), entity: usize, comptime component: ComponentEnum) *Component {
-            return this.components.items(component)[entity];
+        /// Returns a copy of the components on an entity
+        pub fn get(this: *@This(), entity: usize) Component {
+            return this.components.get(entity);
+        }
+
+        pub fn set(this: *@This(), entity: usize, component: Component) void {
+            this.components.set(entity, component);
         }
 
         fn enum2type(comptime enumList: []const ComponentEnum) []type {
@@ -108,13 +113,31 @@ pub fn World(comptime ComponentBase: type) type {
         pub fn process(this: *@This(), dt: f32, comptime comp: []const ComponentEnum, func: anytype) void {
             const Args = Tuple([_]type{f32} ++ enum2type(comp));
             var i = this.iter(Query.require(comp));
-            while (i.next()) |e| {
+            while (i.next()) |eID| {
+                var e = this.get(eID);
                 var args: Args = undefined;
                 args[0] = dt;
                 inline for (comp) |f, j| {
                     args[j + 1] = &(@field(e, @tagName(f)).?);
                 }
                 @call(.{}, func, args);
+                this.set(eID, e);
+            }
+        }
+
+        pub fn processWithID(this: *@This(), dt: f32, comptime comp: []const ComponentEnum, func: anytype) void {
+            const Args = Tuple([_]type{ f32, usize } ++ enum2type(comp));
+            var i = this.iter(Query.require(comp));
+            while (i.next()) |eID| {
+                var e = this.get(eID);
+                var args: Args = undefined;
+                args[0] = dt;
+                args[1] = eID;
+                inline for (comp) |f, j| {
+                    args[j + 2] = &(@field(e, @tagName(f)).?);
+                }
+                @call(.{}, func, args);
+                this.set(eID, e);
             }
         }
 
@@ -129,40 +152,41 @@ pub fn World(comptime ComponentBase: type) type {
         const Self = @This();
         const Iterator = struct {
             world: *Self,
-            lastComponent: ?Component,
+            // lastIndex: ?usize,
             index: usize,
             query: ComponentQuery,
 
             pub fn init(w: *Self, q: ComponentQuery) @This() {
                 return @This(){
                     .world = w,
-                    .lastComponent = null,
+                    // .lastComponent = null,
                     .index = 0,
                     .query = q,
                 };
             }
 
-            pub fn next(this: *@This()) ?*Component {
-                if (this.lastComponent) |e| this.world.components.set(this.index - 1, e);
+            pub fn next(this: *@This()) ?usize {
+                // if (this.lastIndex) |_| this.index += 1;
                 if (this.index == this.world.components.len) return null;
                 var match = false;
                 while (!match) {
                     if (this.index == this.world.components.len) return null;
-                    this.lastComponent = this.world.components.get(this.index);
+                    const e = this.world.components.get(this.index);
                     match = true;
                     inline for (fields) |f| {
                         const fenum = std.meta.stringToEnum(ComponentEnum, f.name) orelse unreachable;
                         const required = this.query.required.contains(fenum);
                         const excluded = this.query.excluded.contains(fenum);
-                        const has = @field(this.lastComponent.?, f.name) != null;
+                        const has = @field(e, f.name) != null;
                         if ((required and !has) or (excluded and has)) {
                             match = false;
                             break;
                         }
                     }
                     this.index += 1;
+                    if (match) return this.index - 1;
                 }
-                return &this.lastComponent.?;
+                return null;
             }
         };
     };
diff --git a/src/main.zig b/src/main.zig
index 416945e..6138ae7 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -68,12 +68,13 @@ const Control = struct {
     controller: enum { player },
     state: enum { stand, walk, jump, fall, wallSlide },
     facing: enum { left, right } = .right,
+    grabbing: ?struct { id: usize, which: usize } = null,
 };
 const Sprite = struct { offset: Vec2f = Vec2f{ 0, 0 }, size: w4.Vec2, index: usize, flags: w4.BlitFlags };
 const StaticAnim = Anim;
 const ControlAnim = struct { anims: []AnimData, state: Anim };
 const Kinematic = struct { col: AABB, move: Vec2f = Vec2f{ 0, 0 }, lastCol: Vec2f = Vec2f{ 0, 0 } };
-const Wire = struct { nodes: std.BoundedArray(Pos, 10), anchored: [2]?enum { stationary, grabbed } = null };
+const Wire = struct { nodes: std.BoundedArray(Pos, 32), anchored: [2]?union(enum) { stationary, grabbed: u32 } = null };
 const Physics = struct { gravity: Vec2f, friction: Vec2f };
 const Component = struct {
     pos: Pos,
@@ -136,10 +137,12 @@ export fn start() void {
         const end = vec2tovec2f(wire.p2);
         const size = end - begin;
 
-        var nodes = std.BoundedArray(Pos, 10).init(0) catch showErr("Nodes");
+        var nodes = std.BoundedArray(Pos, 32).init(0) catch showErr("Nodes");
         var i: usize = 0;
-        while (i <= 5) : (i += 1) {
-            const pos = begin + @splat(2, @intToFloat(f32, i)) * size / @splat(2, @as(f32, 5));
+        const divisions = @floatToInt(usize, length(size) / wireSegmentMaxLength);
+        w4.trace("{d:.0} long, {} divisions", .{ length(size), divisions });
+        while (i <= divisions) : (i += 1) {
+            const pos = begin + @splat(2, @intToFloat(f32, i)) * size / @splat(2, @intToFloat(f32, divisions));
             nodes.append(Pos.init(pos)) catch showErr("Appending nodes");
         }
         const w = Wire{ .nodes = nodes, .anchored = .{ if (wire.a1) .stationary else null, if (wire.a2) .stationary else null } };
@@ -149,12 +152,15 @@ export fn start() void {
     }
 }
 
+var indicator: ?Vec2 = null;
+
 export fn update() void {
     w4.DRAW_COLORS.* = 0x0004;
     w4.rect(.{ 0, 0 }, .{ 160, 160 });
 
     world.process(1, &.{.pos}, velocityProcess);
     world.process(1, &.{ .pos, .physics }, physicsProcess);
+    world.processWithID(1, &.{ .pos, .control }, wireManipulationProcess);
     world.process(1, &.{.wire}, wirePhysicsProcess);
     world.process(1, &.{ .pos, .control, .physics, .kinematic }, controlProcess);
     world.process(1, &.{ .pos, .kinematic }, kinematicProcess);
@@ -177,9 +183,84 @@ export fn update() void {
     }
 
     world.process(1, &.{.wire}, wireDrawProcess);
+
+    if (indicator) |pos| {
+        w4.oval(pos - w4.Vec2{ 2, 2 }, w4.Vec2{ 5, 5 });
+    }
+
+    indicator = null;
     input.update();
 }
 
+fn is_plug(tile: u8) bool {
+    return tile == 176 or tile == 177 or tile == 178 or tile == 179 or tile == 146;
+}
+
+/// pos should be in tile coordinates, not world coordinates
+fn get_conduit(vec: Vec2) ?u8 {
+    const x = vec[0];
+    const y = vec[1];
+    if (x < 0 or x > 19 or y < 0 or y > 19) return null;
+    const i = x + y * 20;
+    return assets.conduit[@intCast(u32, i)];
+}
+
+fn wireManipulationProcess(_: f32, id: usize, pos: *Pos, control: *Control) void {
+    if (control.grabbing) |details| {
+        var offset = if (control.facing == .left) Vec2f{ -6, -4 } else Vec2f{ 6, -4 };
+        var mapPos = vec2ftovec2((pos.pos + offset) / @splat(2, @as(f32, 8)));
+        if (is_plug(get_conduit(mapPos) orelse 0)) {
+            indicator = mapPos * @splat(2, @as(i32, 8)) + Vec2{ 4, 4 };
+            if (input.btnp(.one, .two)) {
+                var e = world.get(details.id);
+                e.wire.?.anchored[details.which] = .stationary;
+                e.wire.?.nodes.slice()[e.wire.?.nodes.len - 1].pos = vec2tovec2f(indicator.?);
+                world.set(details.id, e);
+                control.grabbing = null;
+            }
+        } else if (input.btnp(.one, .two)) {
+            var e = world.get(details.id);
+            e.wire.?.anchored[details.which] = null;
+            world.set(details.id, e);
+            control.grabbing = null;
+        }
+    } else {
+        const interactDistance = 8;
+        var minDistance: f32 = interactDistance;
+        var wireIter = world.iter(World.Query.require(&.{.wire}));
+        var interactWireID: ?usize = null;
+        var which: usize = 0;
+        while (wireIter.next()) |entityID| {
+            const entity = world.get(entityID);
+            const wire = entity.wire.?;
+            const nodes = wire.nodes.constSlice();
+            const begin = nodes[0].pos;
+            const end = nodes[wire.nodes.len - 1].pos;
+            var beginDist = distancef(begin, pos.pos);
+            var endDist = distancef(end, pos.pos);
+            if (beginDist < minDistance) {
+                minDistance = beginDist;
+                indicator = vec2ftovec2(begin);
+                interactWireID = entityID;
+                which = 0;
+            } else if (endDist < minDistance) {
+                minDistance = endDist;
+                indicator = vec2ftovec2(end);
+                interactWireID = entityID;
+                which = 1;
+            }
+        }
+        if (interactWireID) |wireID| {
+            var entity = world.get(wireID);
+            if (input.btnp(.one, .two)) {
+                control.grabbing = .{ .id = wireID, .which = which };
+                entity.wire.?.anchored[which] = .{ .grabbed = id };
+            }
+            world.set(wireID, entity);
+        }
+    }
+}
+
 fn distance(a: w4.Vec2, b: w4.Vec2) i32 {
     var subbed = a - b;
     subbed[0] = std.math.absInt(subbed[0]) catch unreachable;
@@ -219,8 +300,30 @@ fn wirePhysicsProcess(dt: f32, wire: *Wire) void {
         collideNode(node);
     }
 
-    if (wire.anchored[0] != null) nodes[0].pos = nodes[0].last;
-    if (wire.anchored[1] != null) nodes[nodes.len - 1].pos = nodes[nodes.len - 1].last;
+    if (wire.anchored[0]) |anchor| {
+        switch (anchor) {
+            .stationary => nodes[0].pos = nodes[0].last,
+            .grabbed => |grabbedBy| {
+                var entity = world.get(grabbedBy);
+                // TODO: stop player from pulling the wire through terrain
+                // constrainNodes(&entity.pos.?, &nodes[0]);
+                // world.set(grabbedBy, entity);
+                nodes[0].pos = entity.pos.?.pos + Vec2f{ 0, -6 };
+            },
+        }
+    }
+    if (wire.anchored[1]) |anchor| {
+        switch (anchor) {
+            .stationary => nodes[nodes.len - 1].pos = nodes[nodes.len - 1].last,
+            .grabbed => |grabbedBy| {
+                var entity = world.get(grabbedBy);
+                // TODO: stop player from pulling the wire through terrain
+                // constrainNodes(&entity.pos.?, &nodes[nodes.len - 1]);
+                // world.set(grabbedBy, entity);
+                nodes[nodes.len - 1].pos = entity.pos.?.pos + Vec2f{ 0, -6 };
+            },
+        }
+    }
 
     if (wire.anchored[0] != null and wire.anchored[1] != null) {
         var i: usize = 0;
@@ -266,6 +369,10 @@ fn wirePhysicsProcess(dt: f32, wire: *Wire) void {
             }
         }
     }
+
+    for (nodes) |*node| {
+        collideNode(node);
+    }
 }
 
 fn collideNode(node: *Pos) void {
@@ -274,8 +381,6 @@ fn collideNode(node: *Pos) void {
     const iPos = vec2ftovec2(node.pos);
     const mapPos = @divTrunc(iPos, tileSize);
     if (is_solid(mapPos)) {
-        // w4.DRAW_COLORS.* = 0x0011;
-        // w4.rect(mapPos * tileSize, tileSize);
         const velNorm = normalize(node.pos - node.last);
         var collideVec = node.last;
         while (!is_solid(vec2ftovec2((collideVec + velNorm) / tileSizef))) {
@@ -285,12 +390,15 @@ fn collideNode(node: *Pos) void {
     }
 }
 
+const wireSegmentMinLength = 3;
+const wireSegmentMaxLength = 6;
+const wireSegmentMaxLengthV = @splat(2, @as(f32, wireSegmentMaxLength));
+
 fn constrainToAnchor(anchor: *Pos, node: *Pos) void {
     var diff = anchor.pos - node.pos;
     var dist = distancef(node.pos, anchor.pos);
-    if (dist > 8) {
-        node.pos = anchor.pos - (normalize(diff) * @splat(2, @as(f32, 8)));
-    }
+    var wireLength = @maximum(wireSegmentMinLength, dist);
+    node.pos = anchor.pos - (normalize(diff) * @splat(2, @as(f32, wireLength)));
 }
 
 fn constrainNodes(prevNode: *Pos, node: *Pos) void {
@@ -298,7 +406,7 @@ fn constrainNodes(prevNode: *Pos, node: *Pos) void {
     var dist = distancef(node.pos, prevNode.pos);
     var difference: f32 = 0;
     if (dist > 0) {
-        difference = (8 - dist) / dist;
+        difference = (@minimum(dist, wireSegmentMinLength) - dist) / dist;
     }
     var translate = diff * @splat(2, 0.5 * difference);
     prevNode.pos += translate;