X-Git-Url: https://harrygodden.com/git/?a=blobdiff_plain;f=world_routes.h;h=4c198e1a429a23001ed299045790297353e96575;hb=4c49b11c317034277be4d117c5d2847ef2f3492b;hp=429c0fb1cdad6805cb519c4a9b362d9d6715d1d6;hpb=d57b7661518800479c00300ce57407378696eec9;p=carveJwlIkooP6JGAAIwe30JlM.git

diff --git a/world_routes.h b/world_routes.h
index 429c0fb..4c198e1 100644
--- a/world_routes.h
+++ b/world_routes.h
@@ -5,14 +5,18 @@
 #include "model.h"
 #include "gate.h"
 
+#include "shaders/vblend.h"
+#include "shaders/route.h"
+
 struct subworld_routes
 {
    struct route_node
    {
-      v3f co, right, h;
+      v3f co, right, up, h;
       u32 next[2];
 
-      u32 is_gate, gate_id;
+      u32 is_gate, gate_id, current_refs, ref_count;
+      u32 route_ids[4];    /* Gates can be linked into up to four routes */
    }
    *nodes;
 
@@ -25,6 +29,10 @@ struct subworld_routes
       v4f colour;
 
       u32 start;
+      mdl_submesh sm;
+
+      int active;
+      float factive;
    }
    *routes;
 
@@ -35,7 +43,6 @@ struct subworld_routes
    {
       teleport_gate gate;
       
-      u32 route_ids[4];    /* Gates can be linked into up to four routes */
       u32 route_count,
           node_id;
    }
@@ -43,14 +50,121 @@ struct subworld_routes
 
    u32 gate_count,
        gate_cap;
+
+   u32 active_gate;
+
+   scene scene_lines;
 };
 
 static struct subworld_routes *subworld_routes(void);
 
-/* 
- * TODO list:
- *      when a gate is passed through it needs to trigger into an active state
- */
+static void debug_sbpath( struct route_node *rna, struct route_node *rnb,
+                          u32 colour, float xoffset )
+{
+   v3f p0, h0, p1, h1, l, p;
+   
+   v3_copy( rna->co, p0 );
+   v3_muladds( rna->co, rna->h,  1.0f, h0 );
+   v3_copy( rnb->co, p1 );
+   v3_muladds( rnb->co, rnb->h, -1.0f, h1 );
+
+   v3_muladds( p0, rna->right, xoffset, p0 );
+   v3_muladds( h0, rna->right, xoffset, h0 );
+   v3_muladds( p1, rnb->right, xoffset, p1 );
+   v3_muladds( h1, rnb->right, xoffset, h1 );
+
+   v3_copy( p0, l );
+
+   for( int i=0; i<5; i++ )
+   {
+      float t = (float)(i+1)/5.0f;
+      eval_bezier_time( p0, p1, h0, h1, t, p );
+      vg_line( p, l, colour );
+      v3_copy( p, l );
+   }
+}
+
+static void world_routes_activate_gate( u32 id )
+{
+   struct subworld_routes *r = subworld_routes();
+   struct route_gate *ig = &r->gates[id];
+   struct route_node *pnode = &r->nodes[ig->node_id],
+                     *pdest = &r->nodes[pnode->next[0]];
+   
+   r->active_gate = id;
+
+   for( int i=0; i<r->route_count; i++ )
+   {
+      struct route *route = &r->routes[i];
+
+      route->active = 0;
+      for( int j=0; j<pdest->ref_count; j++ )
+      {
+         if( pdest->route_ids[j] == i )
+         {
+            route->active = 1;
+            break;
+         }
+      }
+   }
+}
+
+static u32 world_routes_get_path( struct route *route, u32 stack[64] )
+{
+   struct subworld_routes *r = subworld_routes();
+   u32 stack_i[64];
+
+   stack[0] = route->start;
+   stack_i[0] = 0;
+
+   u32 si = 1;
+   int loop_complete = 0;
+
+   while( si )
+   {
+      if( stack_i[si-1] == 2 )
+      {
+         si --;
+         continue;
+      }
+
+      struct route_node *rn = &r->nodes[stack[si-1]];
+      u32 nextid = rn->next[stack_i[si-1]];
+      stack_i[si-1] ++;
+
+      if( nextid != 0xffffffff )
+      {
+         if( nextid == stack[0] )
+         {
+            loop_complete = 1;
+            break;
+         }
+
+         int valid = 1;
+         for( int sj=0; sj<si; sj++ )
+         {
+            if( stack[sj] == nextid )
+            {
+               valid = 0;
+               break;
+            }
+         }
+
+         if( valid )
+         {
+            stack_i[si] = 0;
+            stack[si] = nextid;
+            si ++;
+            continue;
+         }
+      }
+   }
+
+   if( loop_complete )
+      return si;
+
+   return 0;
+}
 
 static void world_routes_debug(void)
 {
@@ -61,6 +175,41 @@ static void world_routes_debug(void)
       struct route_node *rn = &r->nodes[i];
       vg_line_pt3( rn->co, 1.0f, rn->is_gate? 0xffffff00: 0xff00b2ff );
    }
+
+   for( int i=0; i<r->route_count; i++ )
+   {
+      struct route *route = &r->routes[i];
+
+      u32 stack[64];
+      u32 si = world_routes_get_path( route, stack );
+
+      u32 colours[] = { 0xfff58142, 0xff42cbf5, 0xff42f56c, 0xfff542b3,
+                        0xff5442f5 };
+
+      u32 cc = colours[i%vg_list_size(colours)];
+
+      for( int sj=0; sj<si; sj++ )
+      {
+         int sk = (sj+1)%si;
+         debug_sbpath( &r->nodes[stack[sj]], &r->nodes[stack[sk]], cc,
+               (float)i );
+      }
+   }
+
+   for( int i=0; i<r->node_count; i++ )
+   {
+      struct route_node *ri = &r->nodes[i],
+                        *rj = NULL;
+      
+      for( int j=0; j<2; j++ )
+      {
+         if( ri->next[j] != 0xffffffff )
+         {
+            rj = &r->nodes[ri->next[j]];
+            vg_line( ri->co, rj->co, 0x20ffffff );
+         }
+      }
+   }
 }
 
 static void world_routes_free(void)
@@ -76,9 +225,180 @@ static void world_id_fixup( u32 *uid, mdl_header *mdl )
 {
    if( *uid )
       *uid = mdl_node_from_id( mdl, *uid )->sub_uid;
+   else
+      *uid = 0xffffffff;
 }
 
-static void world_routes_init( mdl_header *mdl )
+static void world_routes_gen_meshes(void)
+{
+   struct subworld_routes *r = subworld_routes();
+   scene_init( &r->scene_lines );
+
+   for( int i=0; i<r->route_count; i++ )
+   {
+      struct route *route = &r->routes[i];
+
+      u32 stack[64];
+      u32 si = world_routes_get_path( route, stack );
+
+      u32 last_valid = 0;
+
+      for( int sj=0; sj<si; sj++ )
+      {
+         int sk=(sj+1)%si;
+
+         struct route_node *rnj = &r->nodes[ stack[sj] ],
+                           *rnk = &r->nodes[ stack[sk] ],
+                           *rnl;
+         
+         if( rnj->is_gate && rnk->is_gate )
+         {
+            last_valid = 0;
+            continue;
+         }
+
+         float base_x0 = (float)rnj->ref_count*-0.5f + (float)rnj->current_refs,
+               base_x1 = (float)rnk->ref_count*-0.5f + (float)rnk->current_refs;
+
+         if( rnk->is_gate )
+         {
+            rnl = &r->nodes[ rnk->next[0] ];
+            base_x1 = (float)rnl->ref_count*-0.5f + (float)rnl->current_refs;
+         }
+
+         if( sk == 0 )
+         {
+            base_x1 -= 1.0f;
+         }
+
+         v3f p0, h0, p1, h1, p, pd;
+         
+         v3_copy( rnj->co, p0 );
+         v3_muladds( rnj->co, rnj->h,  1.0f, h0 );
+         v3_copy( rnk->co, p1 );
+         v3_muladds( rnk->co, rnk->h, -1.0f, h1 );
+
+         float t=0.0f;
+         int it = 0;
+
+         for( int it=0; it<256; it ++ )
+         {
+            float const k_sample_dist = 0.02f;
+            eval_bezier_time( p0,p1,h0,h1, t,p );
+            eval_bezier_time( p0,p1,h0,h1, t+k_sample_dist,pd );
+
+            float mod = k_sample_dist / v3_dist( p, pd );
+
+            v3f v0,up, right;
+            v3_muls( rnj->up, 1.0f-t, up );
+            v3_muladds( up, rnk->up, t, up );
+
+            v3_sub( pd,p,v0 );
+            v3_cross( up, v0, right );
+            v3_normalize( right );
+
+            float cur_x = (1.0f-t)*base_x0 + t*base_x1;
+            
+            v3f sc, sa, sb, down;
+            v3_muladds( p, right, cur_x, sc );
+            v3_muladds( sc, up, 1.5f, sc );
+            v3_muladds( sc, right,  0.45f, sa );
+            v3_muladds( sc, right, -0.45f, sb );
+            v3_muls( up, -1.0f, down );
+            
+            ray_hit ha, hb;
+            ha.dist = 8.0f;
+            hb.dist = 8.0f;
+            if(ray_world( sa, down, &ha ) && 
+               ray_world( sb, down, &hb ))
+            {
+               mdl_vert va, vb;
+               
+               v3_muladds( ha.pos, up, 0.06f, va.co );
+               v3_muladds( hb.pos, up, 0.06f, vb.co );
+               v3_copy( up, va.norm );
+               v3_copy( up, vb.norm );
+               v3_zero( va.colour );
+               v3_zero( vb.colour );
+               v2_zero( va.uv );
+               v2_zero( vb.uv );
+
+               scene_push_vert( &r->scene_lines, &va );
+               scene_push_vert( &r->scene_lines, &vb );
+
+               if( last_valid )
+               {
+                  /* Connect them with triangles */
+                  scene_push_tri( &r->scene_lines, (u32[3]){ 
+                        last_valid+0-2, last_valid+1-2, last_valid+2-2} );
+                  scene_push_tri( &r->scene_lines, (u32[3]){ 
+                        last_valid+1-2, last_valid+3-2, last_valid+2-2} );
+               }
+               
+               last_valid = r->scene_lines.vertex_count;
+            }
+            else
+               last_valid = 0;
+
+            t += 1.0f*mod;
+
+            if( t >= 1.0f )
+            {
+               /* TODO special case for end of loop, need to add triangles
+                *      between first and last rungs */
+               break;
+            }
+         }
+
+         rnj->current_refs ++;
+      }
+
+      scene_copy_slice( &r->scene_lines, &route->sm );
+   }
+
+   scene_upload( &r->scene_lines );
+   scene_free_offline_buffers( &r->scene_lines );
+}
+
+static void bind_terrain_textures(void);
+static void render_world_routes( m4x4f projection, v3f camera )
+{
+   struct subworld_routes *r = subworld_routes();
+
+   m4x3f identity_matrix;
+   m4x3_identity( identity_matrix );
+
+   shader_route_use();
+   shader_route_uTexGarbage(0);
+   shader_link_standard_ub( _shader_route.id, 2 );
+   bind_terrain_textures();
+
+   shader_route_uPv( projection );
+   shader_route_uMdl( identity_matrix );
+   shader_route_uCamera( camera );
+
+   scene_bind( &r->scene_lines );
+
+   for( int i=0; i<r->route_count; i++ )
+   {
+      struct route *route = &r->routes[i];
+      route->factive = vg_lerpf( route->factive, route->active, 0.01f );
+
+      v4f colour;
+      v3_lerp( (v3f){0.7f,0.7f,0.7f}, route->colour, route->factive, colour );
+      colour[3] = 1.0f;
+
+      shader_route_uColour( colour );
+      mdl_draw_submesh( &route->sm );
+   }
+}
+
+static void world_routes_register(void)
+{
+   shader_route_register();
+}
+
+static void world_routes_loadfrom( mdl_header *mdl )
 {
    struct subworld_routes *r = subworld_routes();
    r->nodes = NULL;
@@ -109,8 +429,12 @@ static void world_routes_init( mdl_header *mdl )
 
          v3_copy( transform[0], rn->right );
          v3_normalize( rn->right );
-         v3_copy( transform[2], rn->h );
+         v3_copy( transform[1], rn->up );
+         v3_normalize( rn->up );
+         v3_muls( transform[2], -1.0f, rn->h );
          v3_copy( transform[3], rn->co );
+         rn->ref_count = 0;
+         rn->current_refs = 0;
 
          if( pnode->classtype == k_classtype_gate )
          {
@@ -126,12 +450,27 @@ static void world_routes_init( mdl_header *mdl )
             rn->gate_id = r->gate_count;
             rn->is_gate = 1;
 
-            struct route_gate *rg = &r->gates[r->gate_count];
-            rg->node_id = r->node_count;
-            
             /* TODO */
-
-            r->gate_count ++;
+            if( inf->target )
+            {
+               mdl_node *pother = mdl_node_from_id( mdl, inf->target );
+               
+               if( pother->classtype == k_classtype_gate )
+               {
+                  struct route_gate *rg = &r->gates[r->gate_count];
+                  rg->node_id = r->node_count;
+
+                  v3_copy( pnode->co,  rg->gate.co[0] );
+                  v3_copy( pother->co, rg->gate.co[1] );
+                  v4_copy( pnode->q,   rg->gate.q[0] );
+                  v4_copy( pother->q,  rg->gate.q[1] );
+                  v2_copy( inf->dims,  rg->gate.dims );
+
+                  gate_transform_update( &rg->gate );
+
+                  r->gate_count ++;
+               }
+            }
          }
          else
          {
@@ -151,9 +490,13 @@ static void world_routes_init( mdl_header *mdl )
 
          struct route *route = &r->routes[r->route_count];
 
-         v4_zero( route->colour );
+         v3_copy( inf->colour, route->colour );
+         route->colour[3] = 1.0f;
+
          route->name = NULL;
          route->start = inf->id_start;
+         route->active = 0;
+         route->factive = 0.0f;
 
          r->route_count ++;
       }
@@ -168,22 +511,35 @@ static void world_routes_init( mdl_header *mdl )
       
       for( int j=0; j<2; j++ )
          world_id_fixup( &rn->next[j], mdl );
-
-      if( rn->is_gate )
-         world_id_fixup( &rn->gate_id, mdl );
    }
 
-   for( int i=0; i<r->gate_count; i++ )
+   for( int i=0; i<r->route_count; i++ )
    {
-      struct route_gate *rg = &r->gates[i];
-      world_id_fixup( &rg->node_id, mdl );
+      struct route *route = &r->routes[i];
+      world_id_fixup( &route->start, mdl );
    }
 
+   /*
+    * Gather references
+    */
    for( int i=0; i<r->route_count; i++ )
    {
       struct route *route = &r->routes[i];
-      world_id_fixup( &route->start, mdl );
+
+      u32 stack[64];
+      u32 si = world_routes_get_path( route, stack );
+
+      for( int sj=0; sj<si; sj++ )
+      {
+         struct route_node *rn = &r->nodes[ stack[sj] ];
+         rn->route_ids[ rn->ref_count ++ ] = i;
+
+         if( rn->ref_count > 4 )
+            vg_warn( "Too many references on route node %i\n", i );
+      }
    }
+
+   world_routes_gen_meshes();
 }
 
 #endif /* ROUTES_H */