From ea7596edf57149b3c3f84378276c9d0558aed050 Mon Sep 17 00:00:00 2001
From: David <david003@gmx.net>
Date: Sat, 16 Jul 2022 15:47:20 +0200
Subject: better stopping detection

---
 rust/src/basic_die.rs | 43 +++++++++++++++++++++++++++++++------------
 1 file changed, 31 insertions(+), 12 deletions(-)

(limited to 'rust')

diff --git a/rust/src/basic_die.rs b/rust/src/basic_die.rs
index ffd3bff..ab53720 100644
--- a/rust/src/basic_die.rs
+++ b/rust/src/basic_die.rs
@@ -25,6 +25,8 @@ pub struct BasicDie {
     up_angle: f32,
     #[property(path="shooting/stopping_velocity")]
     stopping_velocity: f32,
+    #[property(path="shooting/stopping_min_milliseconds")]
+    stopping_min_ms: i64,
     #[property(path="input/camera_mouse_sensitivity")]
     mouse_sensitivity: Vector2,
     #[property(path="input/shoot_sensitivity")]
@@ -32,6 +34,7 @@ pub struct BasicDie {
 
     input_state: InputState,
     current_force: f32,
+    last_shot_time: i64,
 
     action_shooting: String,
 
@@ -56,11 +59,13 @@ impl BasicDie {
             max_force: 0.0,
             up_angle: 5.0,
             stopping_velocity: 0.0,
+            stopping_min_ms: 1000,
             mouse_sensitivity: Vector2 { x: 1.0, y: 1.0 },
             shoot_sensitivity: 1.0,
 
             input_state: InputState::Default,
             current_force: 0.0,
+            last_shot_time: 0,
 
             action_shooting: String::from("mouse_btn_left"),
 
@@ -75,10 +80,12 @@ impl BasicDie {
 
     #[export]
     unsafe fn _ready(&mut self, owner: &Spatial) {
-        Input::godot_singleton().set_mouse_mode(Input::MOUSE_MODE_CAPTURED);       
 
+        Input::godot_singleton().set_mouse_mode(Input::MOUSE_MODE_CAPTURED);       
         owner.set_physics_process(true);
 
+        self.last_shot_time = OS::godot_singleton().get_ticks_msec();
+
         let search_node = | parent: &SpatialRef, name: String | {
             let parent_node = match parent {
                 Some(node) => node.assume_safe().as_ref(),
@@ -114,23 +121,33 @@ impl BasicDie {
 
     #[export]
     unsafe fn _physics_process(&mut self, _owner: &Spatial, _delta: f64) {
+        
+        let die = match self.node_die {
+            None => { godot_warn!("No W8 assigned."); return; },
+            Some(node) => match node.assume_safe().cast::<RigidBody>() {
+                None => { godot_warn!("W8 is not a RigidBody."); return; },
+                Some(rb) => rb
+            }
+        };
+
+        // let the cam follow the die
+        match self.node_camera_root {
+            None => { godot_warn!("No W8 assigned."); },
+            Some(cam) => {
+                cam.assume_safe().set_translation(die.translation());
+            }
+        }
 
         // detect if the die stops moving
-        if matches!(self.input_state, InputState::Moving) {
-            // get the current velocity
-            let current_vel = match self.node_die {
-                None => { godot_warn!("No W8 assigned."); 0.0 },
-                Some(node) => 
-                    match node.assume_safe().cast::<RigidBody>() {
-                        None => { godot_warn!("W8 is not a RigidBody."); 0.0 },
-                        Some(rb) => rb.linear_velocity().length()
-                    }
-            };
+        let delta_ms = OS::godot_singleton().get_ticks_msec() - self.last_shot_time;
+        if matches!(self.input_state, InputState::Moving) 
+           && (delta_ms > self.stopping_min_ms) {
 
             // check if the velocity is less than the threshold and change input state in that case
+            let current_vel = die.linear_velocity().length();
             if current_vel <= self.stopping_velocity {
                 self.input_state = InputState::Default;
-                godot_print!("Die stopped moving");
+                godot_print!("Die stopped moving at velocity {} after {} ms", current_vel, delta_ms);
             }
         };
     }
@@ -297,5 +314,7 @@ impl BasicDie {
 
         // actually add the force
         die.apply_impulse(die.transform().origin, impulse_dir); 
+
+        self.last_shot_time = OS::godot_singleton().get_ticks_msec();
     }
 }
-- 
cgit