Moved 'building' entity definitions into 'structures', renamed building component to structure, moved svgs the same.

lib/entities/structures/refinery.rb

@@ -0,0 +1,38 @@
+tiles = [
+  [false, false, false, false, false],
+  [false, true,  true,  false, false],
+  [false, true,  true,  true,  false],
+  [false, true,  true,  true,  false],
+  [false, false, :path, :path, false],
+]
+
+IMICRTS::Entity.define_entity(:refinery, :structure, 1_400, 200, "Generates credits", tiles) do |entity|
+  unless entity.proto_entity
+    entity.has(:structure)
+  end
+
+  entity.radius = 44
+  entity.max_health = 100.0
+
+  entity.body_image = "buildings/refinery/refinery.png"
+  entity.shell_image = "buildings/refinery/refinery_shell.png"
+  entity.overlay_image = "buildings/refinery/refinery_overlay.png"
+
+  position = entity.position.clone
+  position.z = IMICRTS::ZOrder::OVERLAY
+
+  p1 = position.clone
+  p1.x += 2
+  p1.y += 12
+
+  entity.particle_emitters << IMICRTS::SmokeEmitter.new(position: p1, emitting: false)
+
+  entity.on_tick do
+    if entity.component(:structure).data.state == :idle
+
+      entity.particle_emitters.each do |emitter|
+        emitter.emitting = true
+      end
+    end
+  end
+end