/*
- * Copyright (C) 2021-2022 Mt.ZERO Software, Harry Godden - All Rights Reserved
+ * Copyright (C) 2021-2024 Mt.ZERO Software, Harry Godden - All Rights Reserved
*/
-#ifndef WORLD_GATE_H
-#define WORLD_GATE_H
-
-#include "common.h"
-#include "model.h"
-#include "entity.h"
-#include "render.h"
-#include "camera.h"
+#pragma once
+#include "vg/vg_camera.h"
+#include "world.h"
#include "shaders/model_gate.h"
-#include "world_water.h"
-
-VG_STATIC void gate_transform_update( ent_gate *gate )
-{
- m4x3f to_local, recv_to_world;
-
- q_m3x3( gate->q[0], gate->to_world );
- v3_copy( gate->co[0], gate->to_world[3] );
-
- m4x3_invert_affine( gate->to_world, to_local );
-
- q_m3x3( gate->q[1], recv_to_world );
- v3_copy( gate->co[1], recv_to_world[3] );
- m4x3_mul( recv_to_world, to_local, gate->transport );
-
- m4x3_scalev( gate->to_world, (v3f){ gate->dimensions[0],
- gate->dimensions[1], 1.0f } );
-}
-
-VG_STATIC void world_gates_init(void)
-{
- vg_info( "world_gates_init\n" );
-
- shader_model_gate_register();
-
- vg_linear_clear( vg_mem.scratch );
-
- mdl_context mgate;
- mdl_open( &mgate, "models/rs_gate.mdl", vg_mem.scratch );
- mdl_load_metadata_block( &mgate, vg_mem.scratch );
- mdl_load_mesh_block( &mgate, vg_mem.scratch );
-
- mdl_mesh *surface = mdl_find_mesh( &mgate, "rs_gate" );
- mdl_submesh *sm = mdl_arritm(&mgate.submeshs,surface->submesh_start);
- world_global.sm_gate_surface = *sm;
-
- const char *names[] = { "rs_gate_marker", "rs_gate_marker.001",
- "rs_gate_marker.002", "rs_gate_marker.003" };
-
- for( int i=0; i<4; i++ ){
- mdl_mesh *marker = mdl_find_mesh( &mgate, names[i] );
- sm = mdl_arritm( &mgate.submeshs, marker->submesh_start );
- world_global.sm_gate_marker[i] = *sm;
- }
-
- mdl_close( &mgate );
-
- vg_acquire_thread_sync();
- {
- mdl_unpack_glmesh( &mgate, &world_global.mesh_gate );
- }
- vg_release_thread_sync();
-}
-
-VG_STATIC int render_gate( world_instance *world_inside,
- ent_gate *gate, camera *cam, int layer_depth )
-{
- v3f viewdir, gatedir;
- m3x3_mulv( cam->transform, (v3f){0.0f,0.0f,-1.0f}, viewdir );
- q_mulv( gate->q[0], (v3f){0.0f,0.0f,-1.0f}, gatedir );
-
- v3f v0;
- v3_sub( cam->pos, gate->co[0], v0 );
-
- float dist = v3_dot(v0, gatedir);
-
- /* Hard cutoff */
- if( dist > 3.0f )
- return 0;
-
- if( v3_dist( cam->pos, gate->co[0] ) > 100.0f )
- return 0;
-
- {
- v3f a,b,c,d;
-
- m4x3_mulv( gate->to_world, (v3f){-1.0f,-1.0f,0.0f}, a );
- m4x3_mulv( gate->to_world, (v3f){ 1.0f,-1.0f,0.0f}, b );
- m4x3_mulv( gate->to_world, (v3f){ 1.0f, 1.0f,0.0f}, c );
- m4x3_mulv( gate->to_world, (v3f){-1.0f, 1.0f,0.0f}, d );
-
- vg_line( a,b, 0xffffa000 );
- vg_line( b,c, 0xffffa000 );
- vg_line( c,d, 0xffffa000 );
- vg_line( d,a, 0xffffa000 );
-
- vg_line2( gate->co[0], gate->co[1], 0xff0000ff, 0x00000000 );
- }
-
- /* update gate camera */
- gate_camera.fov = cam->fov;
- gate_camera.nearz = 0.1f;
- gate_camera.farz = 2000.0f;
-
- m4x3_mul( gate->transport, cam->transform, gate_camera.transform );
- camera_update_view( &gate_camera );
- camera_update_projection( &gate_camera );
-
- /* Add special clipping plane to projection */
- v4f surface;
- q_mulv( gate->q[1], (v3f){0.0f,0.0f,-1.0f}, surface );
- surface[3] = v3_dot( surface, gate->co[1] );
-
- m4x3_mulp( gate_camera.transform_inverse, surface, surface );
- surface[3] = -fabsf(surface[3]);
-
- if( dist < -0.5f )
- m4x4_clip_projection( gate_camera.mtx.p, surface );
-
- /* Ready to draw with new camrea */
- camera_finalize( &gate_camera );
-
- vg_line_pt3( gate_camera.transform[3], 0.3f, 0xff00ff00 );
- {
- shader_model_gate_use();
- shader_model_gate_uPv( cam->mtx.pv );
- shader_model_gate_uMdl( gate->to_world );
- shader_model_gate_uCam( cam->pos );
- shader_model_gate_uColour( (v4f){0.0f,1.0f,0.0f,0.0f} );
- shader_model_gate_uTime( vg.time*0.25f );
- shader_model_gate_uInvRes( (v2f){
- 1.0f / (float)vg.window_x,
- 1.0f / (float)vg.window_y });
-
- glEnable( GL_STENCIL_TEST );
- glStencilOp( GL_KEEP, GL_KEEP, GL_REPLACE );
- glStencilFunc( GL_ALWAYS, 1, 0xFF );
- glStencilMask( 0xFF );
-
- mesh_bind( &world_global.mesh_gate );
- mdl_draw_submesh( &world_global.sm_gate_surface );
-
- glClear( GL_DEPTH_BUFFER_BIT );
- glStencilFunc( GL_EQUAL, 1, 0xFF );
- glStencilMask( 0x00 );
- }
-
- render_world( world_inside, &gate_camera, layer_depth );
-
- {
- glDisable( GL_STENCIL_TEST );
-
- render_water_texture( world_inside, &gate_camera, layer_depth );
- render_fb_bind( gpipeline.fb_main, 1 );
-
- glEnable( GL_STENCIL_TEST );
-
- render_water_surface( world_inside, &gate_camera );
-
- glStencilMask( 0xFF );
- glStencilFunc( GL_ALWAYS, 1, 0xFF );
- glDisable( GL_STENCIL_TEST );
- }
-
- return 1;
-}
-
-VG_STATIC int gate_intersect_plane( ent_gate *gate,
- v3f pos, v3f last, v2f where )
-{
- v4f surface;
- q_mulv( gate->q[0], (v3f){0.0f,0.0f,-1.0f}, surface );
- surface[3] = v3_dot( surface, gate->co[0] );
-
- v3f v0, c, delta, p0;
- v3_sub( pos, last, v0 );
- float l = v3_length( v0 );
-
- if( l == 0.0f )
- return 0;
-
- v3_divs( v0, l, v0 );
-
- v3_muls( surface, surface[3], c );
- v3_sub( c, last, delta );
-
- float d = v3_dot( surface, v0 );
-
- if( d > 0.00001f ){
- float t = v3_dot(delta, surface) / d;
- if( t >= 0.0f && t <= l ){
- v3f local, rel;
- v3_muladds( last, v0, t, local );
- v3_sub( gate->co[0], local, rel );
-
- where[0] = v3_dot( rel, gate->to_world[0] );
- where[1] = v3_dot( rel, gate->to_world[1] );
-
- where[0] /= v3_dot( gate->to_world[0], gate->to_world[0] );
- where[1] /= v3_dot( gate->to_world[1], gate->to_world[1] );
-
- return 1;
- }
- }
-
- return 0;
-}
+#include "entity.h"
-VG_STATIC int gate_intersect( ent_gate *gate, v3f pos, v3f last )
+struct world_gates
{
- v2f xy;
+ glmesh mesh;
+ mdl_submesh sm_surface, sm_marker[4];
+ vg_camera cam;
- if( gate_intersect_plane( gate, pos, last, xy ) ){
- if( fabsf(xy[0]) <= 1.0f && fabsf(xy[1]) <= 1.0f ){
- return 1;
- }
- }
-
- return 0;
+ v3f userportal_co;
}
+extern world_gates;
-/*
- * Intersect all gates in the world
- */
-VG_STATIC ent_gate *world_intersect_gates( world_instance *world,
- v3f pos, v3f last )
-{
- for( u32 i=0; i<mdl_arrcount(&world->ent_gate); i++ ){
- ent_gate *gate = mdl_arritm( &world->ent_gate, i );
- if( gate->type == k_gate_type_unlinked )
- continue;
+void world_gates_init(void);
+void gate_transform_update( ent_gate *gate );
+int render_gate( world_instance *world, world_instance *world_inside,
+ ent_gate *gate, vg_camera *cam );
- if( gate_intersect( gate, pos, last ) ){
- return gate;
- }
- }
+int gate_intersect( ent_gate *gate, v3f pos, v3f last );
+u32 world_intersect_gates( world_instance *world, v3f pos, v3f last );
- return NULL;
-}
+entity_call_result ent_gate_call( world_instance *world, ent_call *call );
+void ent_gate_get_mdl_mtx( ent_gate *gate, m4x3f mmdl );
-#endif /* WORLD_GATE_H */
+void world_link_gates_async( void *payload, u32 size );
+void world_unlink_nonlocal( world_instance *world );
+void render_gate_unlinked( world_instance *world,
+ ent_gate *gate, vg_camera *cam );
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