+ vg_lerpf( 250.0f, 80.0f, attn ) );
+
+ if( s->sample_change_cooldown > 0.0f ){
+ s->sample_change_cooldown -= vg.frame_delta;
+ }
+ else{
+ int sample_type = k_skate_sample_concrete;
+
+ if( s->state.activity == k_skate_activity_grind_5050 ){
+ if( s->surface == k_surface_prop_metal )
+ sample_type = k_skate_sample_metal_scrape_generic;
+ else
+ sample_type = k_skate_sample_concrete_scrape_metal;
+ }
+ else if( (s->state.activity == k_skate_activity_grind_back50) ||
+ (s->state.activity == k_skate_activity_grind_front50) ){
+
+ float d = v3_dot( player->rb.to_world[2], s->grind_dir );
+
+ if( s->surface == k_surface_prop_metal ){
+ sample_type = k_skate_sample_metal_scrape_generic;
+ }
+ else{
+ if( d > 0.70710678118654752f )
+ sample_type = k_skate_sample_concrete_scrape_wood;
+ else
+ sample_type = k_skate_sample_concrete_scrape_metal;
+ }
+ }
+ else if( s->state.activity == k_skate_activity_grind_boardslide ){
+ if( s->surface == k_surface_prop_metal )
+ sample_type = k_skate_sample_metal_scrape_generic;
+ else
+ sample_type = k_skate_sample_concrete_scrape_wood;
+ }
+
+ audio_clip *relevant_samples[] = {
+ &audio_board[0],
+ &audio_board[0], /* TODO? */
+ &audio_board[7],
+ &audio_board[6],
+ &audio_board[5]
+ };
+
+ if( (s->main_sample_type != sample_type) || (!s->aud_main) ){
+ s->aud_main =
+ audio_channel_crossfade( s->aud_main, relevant_samples[sample_type],
+ 0.06f, flags );
+ s->sample_change_cooldown = 0.1f;
+ s->main_sample_type = sample_type;
+ }
+ }