respawn.c

   1 #ifndef RESPAWN_C
   2 #define RESPAWN_C
   3
   4 #include "respawn.h"
   5 #include "skaterift.h"
   6 #include "world.h"
   7 #include "input.h"
   8 #include "gui.h"
   9 #include "menu.h"
  10 #include "scene.h"
  11
  12 VG_STATIC void respawn_chooser_get_dir( v3f dir ){
  13    /* idk */
  14    dir[0] = -sqrtf(0.5f);
  15    dir[2] =  sqrtf(0.5f);
  16    dir[1] =  1.0f;
  17    v3_normalize(dir);
  18 }
  19
  20 VG_STATIC void respawn_chooser_get_plane( v4f plane ){
  21    world_instance *world = &world_static.instances[ respawn_chooser.world_id ];
  22    f32 h = localplayer.rb.co[1];
  23    if( respawn_chooser.world_id != world_static.active_instance )
  24       h = (world->scene_geo.bbx[0][1] + world->scene_geo.bbx[1][1]) * 0.5f;
  25
  26    v4_copy( (v4f){0.0f,1.0f,0.0f,h}, plane );
  27 }
  28
  29 VG_STATIC void respawn_world_to_plane_pos( v3f pos, v2f plane_pos ){
  30    v3f dir;
  31    respawn_chooser_get_dir( dir );
  32    v3_negate(dir,dir);
  33    v4f plane;
  34    respawn_chooser_get_plane( plane );
  35
  36    v3f co;
  37    f32 t = ray_plane( plane, pos, dir );
  38    v3_muladds( pos, dir, t, co );
  39    plane_pos[0] = co[0];
  40    plane_pos[1] = co[2];
  41 }
  42
  43 VG_STATIC void respawn_chooser_setworld( u32 next ){
  44    world_instance *nw = &world_static.instances[next];
  45    if( nw->status == k_world_status_loaded ){
  46       respawn_chooser.world_id = next;
  47
  48       v3f target;
  49       if( next == world_static.active_instance )
  50          v3_copy( localplayer.rb.co, target );
  51       else {
  52          scene_context *sc = &nw->scene_geo;
  53          v3_lerp( sc->bbx[0], sc->bbx[1], 0.5f, target );
  54       }
  55       respawn_world_to_plane_pos( target, respawn_chooser.plane_pos );
  56    }
  57 }
  58
  59 VG_STATIC void respawn_chooser_gohome(void){
  60    respawn_chooser_setworld(0);
  61    world_instance *world = &world_static.instances[ respawn_chooser.world_id ];
  62
  63    const char **alias = respawn_homes[respawn_chooser.home_select];
  64    ent_spawn *spawn = world_find_spawn_by_name( world, alias[0] );
  65
  66    if( spawn ){
  67       respawn_world_to_plane_pos( spawn->transform.co,
  68                                   respawn_chooser.plane_pos );
  69
  70       gui_location_print_ccmd( 1, (const char *[]){ alias[1] } );
  71    }
  72    else
  73       gui_location_print_ccmd( 1, (const char *[]){ "Invalid home ID" } );
  74 }
  75
  76
  77 VG_STATIC void respawn_chooser_pre_update(void){
  78    if( skaterift.activity != k_skaterift_respawning ) return;
  79
  80    gui_helper_action( joystick_display_string(k_srjoystick_steer,2), "move" );
  81    if( world_static.instances[0].status == k_world_status_loaded )
  82       gui_helper_action( axis_display_string(k_sraxis_mworld_h), "world" );
  83    gui_helper_action( button_display_string(k_srbind_maccept), "spawn" );
  84    gui_helper_action( button_display_string(k_srbind_home), "home" );
  85
  86    if( button_down( k_srbind_mback ) ){
  87       srinput.enabled = 0;
  88       skaterift.activity = k_skaterift_menu;
  89       menu.page = 0xffffffff;
  90       menu_open_page( "Main Menu" );
  91       return;
  92    }
  93
  94    if( button_down( k_srbind_maccept ) ){
  95       skaterift.activity = k_skaterift_default;
  96       srinput.enabled = 0;
  97
  98       if( respawn_chooser.spawn ){
  99          world_static.active_instance = respawn_chooser.world_id;
 100          localplayer.viewable_world =
 101             &world_static.instances[ respawn_chooser.world_id ];
 102          player__spawn( &localplayer, respawn_chooser.spawn );
 103       }
 104       return;
 105    }
 106
 107    if( button_down( k_srbind_world_left ) ){
 108       if( respawn_chooser.world_id > 0 )
 109          respawn_chooser_setworld( respawn_chooser.world_id-1 );
 110    }
 111
 112    if( button_down( k_srbind_world_right ) ){
 113       u32 next = respawn_chooser.world_id+1;
 114       if( next < vg_list_size(world_static.instances) )
 115          respawn_chooser_setworld( next );
 116    }
 117
 118    if( button_down(k_srbind_home) ){
 119       respawn_chooser.home_select ++;
 120       if( respawn_chooser.home_select >= vg_list_size(respawn_homes) )
 121          respawn_chooser.home_select = 0;
 122       respawn_chooser_gohome();
 123    }
 124
 125    world_instance *world = &world_static.instances[ respawn_chooser.world_id ];
 126    v3f *bbx = world->scene_geo.bbx;
 127    f32 *pos = respawn_chooser.plane_pos;
 128
 129    v2f steer;
 130    joystick_state( k_srjoystick_steer, steer );
 131    v2_normalize_clamp( steer );
 132
 133    m2x2f rm;
 134    m2x2_create_rotation( rm, -0.25f*VG_PIf );
 135    m2x2_mulv( rm, steer, steer );
 136
 137    v2_muladds( pos, steer, vg.time_frame_delta * 200.0f, pos );
 138    v2_minv( (v2f){ bbx[1][0], bbx[1][2] }, pos, pos );
 139    v2_maxv( (v2f){ bbx[0][0], bbx[0][2] }, pos, pos );
 140
 141    /* update camera */
 142    camera *cam = &respawn_chooser.cam;
 143    v3f dir;
 144    respawn_chooser_get_dir(dir);
 145
 146    v4f plane;
 147    respawn_chooser_get_plane( plane );
 148
 149    v3f co = { pos[0], plane[3]*plane[1], pos[1] };
 150    v3_muladds( co, dir, respawn_chooser.boom_dist, cam->pos );
 151
 152    vg_line_cross( co, VG__RED, 10.0f );
 153
 154    cam->angles[0] = 0.25f * VG_PIf;
 155    cam->angles[1] = 0.25f * VG_PIf;
 156    cam->farz = 5000.0f;
 157    cam->nearz = 10.0f;
 158    cam->fov = 40.0f;
 159
 160    camera_update_transform( cam );
 161    camera_update_view( cam );
 162    camera_update_projection( cam );
 163    camera_finalize( cam );
 164
 165    /* pick spawn */
 166    respawn_chooser.spawn = NULL;
 167    f32 closest2 = INFINITY;
 168
 169    for( u32 i=0; i<mdl_arrcount(&world->ent_spawn); i++ ){
 170       ent_spawn *spawn = mdl_arritm(&world->ent_spawn,i);
 171
 172       v4f v;
 173       v3_copy( spawn->transform.co, v );
 174       v[3] = 1.0f;
 175       m4x4_mulv( cam->mtx.pv, v, v );
 176
 177       f32 d2 = v2_length2(v);
 178       if( d2 < closest2 ){
 179          respawn_chooser.spawn = spawn;
 180          closest2 = d2;
 181       }
 182    }
 183
 184    if( respawn_chooser.spawn ){
 185       vg_line_cross( respawn_chooser.spawn->transform.co, VG__GREEN, 5.0f );
 186    }
 187 }
 188
 189 VG_STATIC void respawn_begin_chooser(void){
 190    skaterift.activity = k_skaterift_respawning;
 191    respawn_chooser.world_id = world_static.active_instance;
 192
 193    world_instance *world = &world_static.instances[ respawn_chooser.world_id ];
 194    v3f *bbx = world->scene_geo.bbx;
 195
 196    respawn_world_to_plane_pos( localplayer.rb.co, respawn_chooser.plane_pos );
 197    respawn_chooser.boom_dist = 400.0f;
 198    respawn_chooser.home_select = 0;
 199 }
 200
 201 VG_STATIC void respawn_chooser_shader_uniforms(void){
 202    v4f uPlayerPos, uSpawnPos;
 203    v4_zero( uPlayerPos );
 204    v4_zero( uSpawnPos );
 205
 206    v3_copy( localplayer.rb.co, uPlayerPos );
 207
 208    if( respawn_chooser.spawn )
 209       v3_copy( respawn_chooser.spawn->transform.co, uSpawnPos );
 210
 211    uPlayerPos[3] = v3_dist(uPlayerPos,uSpawnPos);
 212    uSpawnPos[3] = 1.0f/uPlayerPos[3];
 213
 214    shader_scene_override_uPlayerPos( uPlayerPos );
 215    shader_scene_override_uSpawnPos( uSpawnPos );
 216 }
 217
 218 #endif /* RESPAWN_C */