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demo_anchors.cpp
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demo_anchors.cpp
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#include "demo_anchors.h"
#include <stereokit.h>
#include <stereokit_ui.h>
using namespace sk;
#include <vector>
using namespace std;
vector<anchor_t> anchors;
///////////////////////////////////////////
void demo_anchors_init() {
for (int32_t i = 0; i < anchor_get_count(); i++)
anchors.push_back(anchor_get_index(i));
}
///////////////////////////////////////////
void demo_anchors_update() {
// Show settings window
static pose_t window_pose = pose_t{ {0.4f,0.0,-0.4f}, quat_lookat({}, {-1,0,1}) };
static bool32_t persist_anchors = (anchor_get_capabilities() & anchor_caps_storable) != 0;
ui_window_begin("Anchor Options", window_pose);
ui_push_enabled((anchor_get_capabilities() & anchor_caps_storable) != 0);
ui_toggle("Persist New Anchors", persist_anchors);
ui_pop_enabled();
if (ui_button("Clear Stored Anchors")) {
anchor_clear_stored();
demo_anchors_shutdown();
}
ui_window_end();
// Draw a pose for each anchor
for (size_t i = 0; i < anchors.size(); i++) {
line_add_axis(anchor_get_pose(anchors[i]), 0.1f);
text_add_at(anchor_get_name(anchors[i]), pose_matrix(anchor_get_pose(anchors[i])), 0, text_align_top_center);
}
// Some interaction for adding anchors
if (!ui_is_interacting(handed_right) && input_hand(handed_right)->pinch_state & button_state_just_active || input_key(key_space) & button_state_just_active) {
pose_t pose = *input_head();
pose.position += pose.orientation * vec3_forward * 0.5f;
if (input_hand(handed_right)->tracked_state & button_state_active)
pose.position = input_hand(handed_right)->pinch_pt;
else if (input_hand(handed_left)->tracked_state & button_state_active)
pose.position = input_hand(handed_left)->pinch_pt;
pose.orientation = quat_lookat(pose.position, input_head()->position);
anchor_t anch = anchor_create(pose);
if (anch) {
anchors.push_back(anch);
if (persist_anchors) anchor_try_set_persistent(anch, true);
} else {
log_info("Failed to create anchor!");
}
}
for (int32_t i = 0; i < anchor_get_new_count(); i++) {
anchor_t anchor = anchor_get_new_index(i);
log_infof("New anchor: %s", anchor_get_name(anchor));
anchor_release(anchor);
}
}
///////////////////////////////////////////
void demo_anchors_shutdown() {
for (size_t i = 0; i < anchors.size(); i++)
anchor_release(anchors[i]);
anchors.clear();
}