From 88b191de24adac2a2f9aa57d001dcf17e12f788e Mon Sep 17 00:00:00 2001
From: hgn <hgodden00@gmail.com>
Date: Thu, 20 Oct 2022 22:38:41 +0100
Subject: [PATCH] physics

---
 player.h         |  9 +++------
 player_physics.h | 29 +++++++++++++++++++++++++++++
 world_routes.h   |  2 +-
 3 files changed, 33 insertions(+), 7 deletions(-)

diff --git a/player.h b/player.h
index e4814d3..fc435dc 100644
--- a/player.h
+++ b/player.h
@@ -396,12 +396,9 @@ static void player_update_post(void)
 
             float dist = vg_maxf( v3_dist( fr->pos, fr1->pos ), 0.001f ),
                   subl = vg_fractf( player.rewind_time ) + 0.001f,
-                  
-#if 0
-                  speed=sqrtf(player.rewind_time*player.rewind_time+11.0f)*3.0f,
-#else
-                  speed = (3.0f-(1.0f/(0.4f+0.4f*player.rewind_time)))*28.0f,
-#endif
+
+                  sramp= 3.0f-(1.0f/(0.4f+0.4f*player.rewind_time)),
+                  speed = sramp*28.0f + 0.5f*player.rewind_time,
                   mod  = speed * (budget / dist),
 
                   advl = vg_minf( mod, subl ),
diff --git a/player_physics.h b/player_physics.h
index 4a2add1..b93ac03 100644
--- a/player_physics.h
+++ b/player_physics.h
@@ -521,6 +521,7 @@ static void player_physics(void)
 
    if( !phys->in_air )
    {
+#if 0
       v3f axis;
       float angle = v3_dot( phys->rb.up, surface_avg );
       v3_cross( phys->rb.up, surface_avg, axis );
@@ -534,6 +535,34 @@ static void player_physics(void)
          q_axis_angle( correction, axis, acosf(angle)*18.0f*VG_TIMESTEP_FIXED );
          q_mul( correction, phys->rb.q, phys->rb.q );
       }
+#else
+      
+      /* 20/10/22: make this only go axisways instead, may effect velocities. */
+
+      v3f projected, axis;
+
+      float d = v3_dot( phys->rb.forward, surface_avg );
+      v3_muladds( surface_avg, phys->rb.forward, -d, projected );
+      v3_normalize( projected );
+
+      float angle = v3_dot( phys->rb.up, projected );
+      v3_cross( phys->rb.up, projected, axis );
+
+      v3f p0, p1;
+      v3_add( phys->rb.co, projected, p0 );
+      v3_add( phys->rb.co, phys->rb.up, p1 );
+      vg_line( phys->rb.co, p0, 0xff00ff00 );
+      vg_line( phys->rb.co, p1, 0xff000fff );
+
+      if( fabsf(angle) < 0.999f )
+      {
+         v4f correction;
+         q_axis_angle( correction, axis, acosf(angle)*4.0f*VG_TIMESTEP_FIXED );
+         q_mul( correction, phys->rb.q, phys->rb.q );
+      }
+
+
+#endif
 
       float const DOWNFORCE = -k_downforce*VG_TIMESTEP_FIXED;
       v3_muladds( phys->rb.v, phys->rb.up, DOWNFORCE, phys->rb.v );
diff --git a/world_routes.h b/world_routes.h
index 3de9278..07e35c7 100644
--- a/world_routes.h
+++ b/world_routes.h
@@ -431,7 +431,7 @@ static void world_routes_ui_draw( u32 route, v4f colour, float offset )
    fade_colour[3] *= 1.0f-fade_amt;
 
    /* 1 minute timer */
-   float timer_delta = (vg.time - world.routes.last_interaction) * (1.0/30.0),
+   float timer_delta = (vg.time - world.routes.last_interaction) * (1.0/45.0),
          timer_scale = 1.0f - vg_minf( timer_delta, 1.0f );
 
    /* 
-- 
2.25.1