static bool initWalkInfo(bContext *C, WalkInfo *walk, wmOperator *op)
{
wmWindow *win = CTX_wm_window(C);
walk->rv3d = CTX_wm_region_view3d(C);
walk->v3d = CTX_wm_view3d(C);
walk->ar = CTX_wm_region(C);
walk->scene = CTX_data_scene(C);
#ifdef NDOF_WALK_DEBUG
puts("\n-- walk begin --");
#endif
/* sanity check: for rare but possible case (if lib-linking the camera fails) */
if ((walk->rv3d->persp == RV3D_CAMOB) && (walk->v3d->camera == NULL)) {
walk->rv3d->persp = RV3D_PERSP;
}
if (walk->rv3d->persp == RV3D_CAMOB && walk->v3d->camera->id.lib) {
BKE_report(op->reports, RPT_ERROR, "Cannot navigate a camera from an external library");
return false;
}
if (ED_view3d_offset_lock_check(walk->v3d, walk->rv3d)) {
BKE_report(op->reports, RPT_ERROR, "Cannot navigate when the view offset is locked");
return false;
}
if (walk->rv3d->persp == RV3D_CAMOB && walk->v3d->camera->constraints.first) {
BKE_report(op->reports, RPT_ERROR, "Cannot navigate an object with constraints");
return false;
}
walk->state = WALK_RUNNING;
if (fabsf(U.walk_navigation.walk_speed - userdef_speed) > 0.1f) {
base_speed = U.walk_navigation.walk_speed;
userdef_speed = U.walk_navigation.walk_speed;
}
walk->speed = 0.0f;
walk->is_fast = false;
walk->is_slow = false;
walk->grid = 1.f / walk->scene->unit.scale_length;
/* user preference settings */
walk->teleport.duration = U.walk_navigation.teleport_time;
walk->mouse_speed = U.walk_navigation.mouse_speed;
if ((U.walk_navigation.flag & USER_WALK_GRAVITY))
walk_navigation_mode_set(C, walk, WALK_MODE_GRAVITY);
else
walk_navigation_mode_set(C, walk, WALK_MODE_FREE);
walk->view_height = U.walk_navigation.view_height;
walk->jump_height = U.walk_navigation.jump_height;
walk->speed = U.walk_navigation.walk_speed;
walk->speed_factor = U.walk_navigation.walk_speed_factor;
walk->gravity = WALK_GRAVITY_STATE_OFF;
walk->is_reversed = ((U.walk_navigation.flag & USER_WALK_MOUSE_REVERSE) != 0);
walk->active_directions = 0;
#ifdef NDOF_WALK_DRAW_TOOMUCH
walk->redraw = 1;
#endif
zero_v3(walk->dvec_prev);
walk->timer = WM_event_add_timer(CTX_wm_manager(C), win, TIMER, 0.01f);
walk->ndof = NULL;
walk->time_lastdraw = PIL_check_seconds_timer();
walk->draw_handle_pixel = ED_region_draw_cb_activate(walk->ar->type, drawWalkPixel, walk, REGION_DRAW_POST_PIXEL);
walk->rv3d->rflag |= RV3D_NAVIGATING;
walk->v3d_camera_control = ED_view3d_cameracontrol_aquire(
walk->scene, walk->v3d, walk->rv3d,
(U.uiflag & USER_CAM_LOCK_NO_PARENT) == 0);
/* center the mouse */
walk->center_mval[0] = walk->ar->winx * 0.5f;
walk->center_mval[1] = walk->ar->winy * 0.5f;
copy_v2_v2_int(walk->prev_mval, walk->center_mval);
WM_cursor_warp(CTX_wm_window(C),
walk->ar->winrct.xmin + walk->center_mval[0],
walk->ar->winrct.ymin + walk->center_mval[1]);
/* remove the mouse cursor temporarily */
WM_cursor_modal_set(win, CURSOR_NONE);
return 1;
}
static bool initFlyInfo(bContext *C, FlyInfo *fly, wmOperator *op, const wmEvent *event)
{
wmWindow *win = CTX_wm_window(C);
rctf viewborder;
float upvec[3]; /* tmp */
float mat[3][3];
fly->rv3d = CTX_wm_region_view3d(C);
fly->v3d = CTX_wm_view3d(C);
fly->ar = CTX_wm_region(C);
fly->scene = CTX_data_scene(C);
#ifdef NDOF_FLY_DEBUG
puts("\n-- fly begin --");
#endif
/* sanity check: for rare but possible case (if lib-linking the camera fails) */
if ((fly->rv3d->persp == RV3D_CAMOB) && (fly->v3d->camera == NULL)) {
fly->rv3d->persp = RV3D_PERSP;
}
if (fly->rv3d->persp == RV3D_CAMOB && fly->v3d->camera->id.lib) {
BKE_report(op->reports, RPT_ERROR, "Cannot fly a camera from an external library");
return false;
}
if (ED_view3d_offset_lock_check(fly->v3d, fly->rv3d)) {
BKE_report(op->reports, RPT_ERROR, "Cannot fly when the view offset is locked");
return false;
}
if (fly->rv3d->persp == RV3D_CAMOB && fly->v3d->camera->constraints.first) {
BKE_report(op->reports, RPT_ERROR, "Cannot fly an object with constraints");
return false;
}
fly->state = FLY_RUNNING;
fly->speed = 0.0f;
fly->axis = 2;
fly->pan_view = false;
fly->xlock = FLY_AXISLOCK_STATE_OFF;
fly->zlock = FLY_AXISLOCK_STATE_OFF;
fly->xlock_momentum = 0.0f;
fly->zlock_momentum = 0.0f;
fly->grid = 1.0f;
fly->use_precision = false;
fly->use_freelook = false;
#ifdef NDOF_FLY_DRAW_TOOMUCH
fly->redraw = 1;
#endif
zero_v3(fly->dvec_prev);
fly->timer = WM_event_add_timer(CTX_wm_manager(C), win, TIMER, 0.01f);
copy_v2_v2_int(fly->mval, event->mval);
fly->ndof = NULL;
fly->time_lastdraw = fly->time_lastwheel = PIL_check_seconds_timer();
fly->draw_handle_pixel = ED_region_draw_cb_activate(fly->ar->type, drawFlyPixel, fly, REGION_DRAW_POST_PIXEL);
fly->rv3d->rflag |= RV3D_NAVIGATING;
/* detect whether to start with Z locking */
copy_v3_fl3(upvec, 1.0f, 0.0f, 0.0f);
copy_m3_m4(mat, fly->rv3d->viewinv);
mul_m3_v3(mat, upvec);
if (fabsf(upvec[2]) < 0.1f) {
fly->zlock = FLY_AXISLOCK_STATE_IDLE;
}
fly->v3d_camera_control = ED_view3d_cameracontrol_aquire(
fly->scene, fly->v3d, fly->rv3d,
(U.uiflag & USER_CAM_LOCK_NO_PARENT) == 0);
/* calculate center */
if (fly->scene->camera) {
ED_view3d_calc_camera_border(fly->scene, fly->ar, fly->v3d, fly->rv3d, &viewborder, false);
fly->width = BLI_rctf_size_x(&viewborder);
fly->height = BLI_rctf_size_y(&viewborder);
fly->center_mval[0] = viewborder.xmin + fly->width / 2;
fly->center_mval[1] = viewborder.ymin + fly->height / 2;
}
else {
fly->width = fly->ar->winx;
fly->height = fly->ar->winy;
fly->center_mval[0] = fly->width / 2;
fly->center_mval[1] = fly->height / 2;
}
/* center the mouse, probably the UI mafia are against this but without its quite annoying */
WM_cursor_warp(win, fly->ar->winrct.xmin + fly->center_mval[0], fly->ar->winrct.ymin + fly->center_mval[1]);
return 1;
}