serve-authorative movement

2 files changed, 20 insertions, 8 deletions

diff --git a/server/protocol/src/lib.rs b/server/protocol/src/lib.rs
index f2a6dd27..14c410b3 100644
--- a/server/protocol/src/lib.rs
+++ b/server/protocol/src/lib.rs
@@ -88,11 +88,12 @@ pub enum PacketS {
         character: i32,
     },
     Leave,
-    Position {
+    Movement {
         #[bincode(with_serde)]
-        pos: Vec2,
-        rot: f32,
+        direction: Vec2,
         boosting: bool,
+        #[bincode(with_serde)]
+        pos: Option<Vec2>,
     },
     Interact {
         #[bincode(with_serde)]
diff --git a/server/protocol/src/movement.rs b/server/protocol/src/movement.rs
index 9abff295..ab4eb818 100644
--- a/server/protocol/src/movement.rs
+++ b/server/protocol/src/movement.rs
@@ -72,21 +72,32 @@ impl MovementBase {
         self.velocity += direction * dt * speed;
         self.position += self.velocity * dt;
         self.velocity = self.velocity * (-dt * PLAYER_FRICTION).exp();
-        collide_player(self, map);
+        collide_player_tiles(self, map);
 
-        PacketS::Position {
-            pos: self.position,
+        PacketS::Movement {
+            pos: Some(self.position),
             boosting: self.boosting,
-            rot: self.rotation,
+            direction,
         }
     }
 
+    pub fn collide(&mut self, other: &mut Self, dt: f32) {
+        let diff = self.position - other.position;
+        let d = diff.length();
+        if d < 0.01 || d > PLAYER_SIZE * 2. {
+            return;
+        }
+        let norm = diff.normalize();
+        let f = 100. / (1. + d);
+        self.velocity += norm * f * dt
+    }
+
     pub fn get_interact_target(&self) -> IVec2 {
         (self.position + Vec2::new(self.rotation.sin(), self.rotation.cos())).as_ivec2()
     }
 }
 
-pub fn collide_player(p: &mut MovementBase, map: &HashSet<IVec2>) {
+fn collide_player_tiles(p: &mut MovementBase, map: &HashSet<IVec2>) {
     for xo in -1..=1 {
         for yo in -1..=1 {
             let tile = IVec2::new(xo, yo) + p.position.as_ivec2();