From 93cc607613e530177f6c9a97d0ea3db90f1cb653 Mon Sep 17 00:00:00 2001
From: hut <hut@hut.pm>
Date: Fri, 5 Apr 2024 01:55:40 +0200
Subject: [PATCH] add velocity command

---
 src/commands.rs | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/src/commands.rs b/src/commands.rs
index db11dd9..7a0ce51 100644
--- a/src/commands.rs
+++ b/src/commands.rs
@@ -40,6 +40,7 @@ struct ParserState {
     model: String,
     model_scale: f32,
     rotation: Quat,
+    velocity: DVec3,
     angular_momentum: DVec3,
     pronoun: String,
     is_sphere: bool,
@@ -92,6 +93,7 @@ impl Default for ParserState {
             model: "".to_string(),
             model_scale: 1.0,
             rotation: Quat::IDENTITY,
+            velocity: DVec3::splat(0.0),
             angular_momentum: DVec3::new(0.03, 0.3, 0.09),
             pronoun: "they/them".to_string(),
             is_sphere: false,
@@ -327,6 +329,16 @@ pub fn load_defs(
                     continue;
                 }
             }
+            ["velocity", x, y, z] => {
+                if let (Ok(x_float), Ok(y_float), Ok(z_float)) =
+                        (x.parse::<f64>(), y.parse::<f64>(), z.parse::<f64>()) {
+                    state.velocity = DVec3::new(x_float, y_float, z_float);
+                }
+                else {
+                    error!("Can't parse float: {line}");
+                    continue;
+                }
+            }
             ["angularmomentum", x, y, z] => {
                 if let (Ok(x_float), Ok(y_float), Ok(z_float)) =
                         (x.parse::<f64>(), y.parse::<f64>(), z.parse::<f64>()) {
@@ -604,6 +616,7 @@ fn spawn_entities(
             if state.has_physics {
                 let fix_scale: f64 = 1.0 / (state.model_scale as f64).powf(3.0);
                 actor.insert(RigidBody::Dynamic);
+                actor.insert(LinearVelocity(state.velocity));
                 actor.insert(AngularVelocity(state.angular_momentum));
                 actor.insert(ColliderDensity((state.mass * fix_scale) as f64));
                 if state.collider_is_mesh {