Improve Gates, Wires, and Chips tutorial for BC

static/data/buildcraft/mod.cg

@@ -9,4 +9,4 @@ downloadUrl:      http://www.mod-buildcraft.com/download/
 
 version: 6.2.6
 
-tutorial: Gates
+tutorial: Gates, Wires, and Chips

static/data/buildcraft/tutorials/gates.cg

@@ -1,7 +0,0 @@
-schema: 1
-
-section:
-    title: Gates
-    content: <<-END
-        This is the gate tutorial.  It's short.
-    END

static/data/buildcraft/tutorials/gates_wires_and_chips.cg

@@ -0,0 +1,35 @@
+schema: 1
+
+section:
+    title: What do gates do?
+    content: <<-END
+        BuildCraft gates are devices which can be attached to a pipe to detect and interact with objects nearby. Gates
+        can read a wide variety of conditions: that a nearby chest is full, or that a [Combustion
+        Engine](/browse/buildcraft/combustion_engine) is about to overheat. In reaction to these conditions, gates can
+        emit various kinds of signals (including redstone signals) to control other gates and/or machines.
+    END
+
+section:
+    title: An Example: Controlling Engines
+    content: <<-END
+        Before diving into all the details, let's look at a realistic example of what you might do with gates. This is a
+        small power plant driving a quarry.
+
+        ![](./example_1_overview.png)
+
+        Here are the important pieces of the build:
+
+        1. The on/off switch for the entire operation.  Flipping the switch creates a redstone signal.
+        2. A [Basic Gate](/browse/buildcraft/basic_gate/) attached to a [Structure Pipe]
+            (/browse/buildcraft/structure_pipe) reads the redstone signal and generates a red pipe wire signal.
+        3. [Red Pipe Wire](/browse/buildcraft/red_pipe_wire) follows the [Cobblestone Kinesis Pipe]
+            (/browse/buildcraft/cobblestone_kinesis_pipe), transmitting the signal throughout the rest of the build.
+        4. Another Basic Gate receives the red pipe wire signal and converts it back to a redstone signal, thus turning
+            the [Combustion Engine](/browse/buildcraft/combustion_engine)s on.
+        5. The red pipe wire signal is also received by Basic Gates next to the [Redstone
+            Engine(/browse/buildcraft/redstone_engine)s, turning them on as well, and causing both fuel and water to
+            flow into the engines.
+        6. Finally, the power generated by the Combusion Engines flows into the [Quarry](/browse/buildcraft/quarry/).
+    END
+
+video: J6-VUApZGQs, Buildcraft Gates Tutorial, Part 1