Support for func_move vertex groups.

1 files changed, 8 insertions, 2 deletions

diff --git a/src/render/draw.cc b/src/render/draw.cc
index 30271f5..1e166b3 100644
--- a/src/render/draw.cc
+++ b/src/render/draw.cc
@@ -608,10 +608,16 @@ void draw_model_fragments(model::Model *model,
 			if (group->type() == model::FragmentGroup::Rotate) {
 				const float rotation_angle = math::degrees360f((group->engine() ? enginetime : core::application()->time()) * group->speed());
 				gl::rotate(-rotation_angle, group->axis().forward());
-			}  else {
+				
+			} else if (group->type() == model::FragmentGroup::Move ) {
+				const float speed = group->distance() / group->speed(); // units per second
+				math::Vector3f translation(group->axis().forward() * group->distance());
+				translation *= sinf((group->engine() ? enginetime : core::application()->time()) * M_PI * speed) * 0.5f + 0.5f;
+				 gl::translate(translation);
+			} else {
 				gl::multmatrix(group->axis());
 			}
-
+			
 			const float s = group->scale();
 			if (s)
 				gl::scale(s, s, s);