Commit 44668a07e27ee0716d8021a23d175be53917a55f - thermidor

First pass at a scene graph representation Getty Ritter 8 years ago

3 changed file(s) with 32 addition(s) and 0 deletion(s). Collapse all Expand all

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therm_model/Cargo.toml less more

+29

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therm_model/src/graph.rs less more

	1	use cgmath::{Matrix4,SquareMatrix,Vector3,Vector4};
	2	use model::Model;
	3
	4	pub enum SceneGraph {
	5	Translate(f32, f32, f32, Box<SceneGraph>),
	6	Model(Model),
	7	Many(Vec<SceneGraph>),
	8	}
	9
	10	impl SceneGraph {
	11	pub fn traverse<F>(&self, callback: &mut F)
	12	where F: FnMut(&Model, &[[f32;4];4]) -> ()
	13	{
	14	self.go(callback, Matrix4::identity() * 0.01);
	15	}
	16
	17	fn go<F>(&self, callback: &mut F, mat: Matrix4<f32>)
	18	where F: FnMut(&Model, &[[f32;4];4]) -> ()
	19	{
	20	match self {
	21	&SceneGraph::Model(ref m) => callback(m, &mat.into()),
	22	&SceneGraph::Many(ref graphs) => for g in graphs {
	23	g.go(callback, mat);
	24	},
	25	&SceneGraph::Translate(x, y, z, ref rs) =>
	26	rs.go(callback, mat * Matrix4::from_translation(Vector3::new(x, y, z))),
	27	}
	28	}
	29	}

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therm_model/src/lib.rs less more