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0e41ccbfa5b90839a50977d49b2d95523f9c8076
armorpaint/paint/sources/camera.c
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luboslenco 0e41ccbfa5 paint: cleanup
2026-03-07 21:12:59 +01:00

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void camera_init() {
camera_reset(-1);
}
void camera_update(any _) {
camera_object_t *camera = scene_camera;
if (mouse_view_x() < 0 || mouse_view_x() > sys_w() || mouse_view_y() < 0 || mouse_view_y() > sys_h()) {
if (config_raw->wrap_mouse && camera_controls_down) {
if (mouse_view_x() < 0) {
mouse_x = mouse_last_x = sys_x() + sys_w();
iron_mouse_set_position(math_floor(mouse_x), math_floor(mouse_y));
}
else if (mouse_view_x() > sys_w()) {
mouse_x = mouse_last_x = sys_x();
iron_mouse_set_position(math_floor(mouse_x), math_floor(mouse_y));
}
else if (mouse_view_y() < 0) {
mouse_y = mouse_last_y = sys_y() + sys_h();
iron_mouse_set_position(math_floor(mouse_x), math_floor(mouse_y));
}
else if (mouse_view_y() > sys_h()) {
mouse_y = mouse_last_y = sys_y();
iron_mouse_set_position(math_floor(mouse_x), math_floor(mouse_y));
}
}
else {
return;
}
}
bool modif_key = keyboard_down("alt") || keyboard_down("shift") || keyboard_down("control");
bool modif = modif_key || string_equals(any_map_get(config_keymap, "action_rotate"), "middle");
bool default_keymap = string_equals(config_raw->keymap, "default.json");
if (operator_shortcut(any_map_get(config_keymap, "action_rotate"), SHORTCUT_TYPE_STARTED) ||
operator_shortcut(any_map_get(config_keymap, "action_zoom"), SHORTCUT_TYPE_STARTED) ||
operator_shortcut(any_map_get(config_keymap, "action_pan"), SHORTCUT_TYPE_STARTED) ||
operator_shortcut(any_map_get(config_keymap, "rotate_envmap"), SHORTCUT_TYPE_STARTED) || (mouse_started("right") && !modif) ||
(mouse_started("middle") && !modif) || (mouse_wheel_delta != 0 && !modif_key)) {
camera_controls_down = true;
}
else if (!operator_shortcut(any_map_get(config_keymap, "action_rotate"), SHORTCUT_TYPE_DOWN) &&
!operator_shortcut(any_map_get(config_keymap, "action_zoom"), SHORTCUT_TYPE_DOWN) &&
!operator_shortcut(any_map_get(config_keymap, "action_pan"), SHORTCUT_TYPE_DOWN) &&
!operator_shortcut(any_map_get(config_keymap, "rotate_envmap"), SHORTCUT_TYPE_DOWN) && !(mouse_down("right") && !modif) &&
!(mouse_down("middle") && !modif) && (mouse_wheel_delta == 0 && !modif_key)) {
camera_controls_down = false;
}
if (_input_occupied || !base_ui_enabled || base_is_dragging || ui->is_scrolling || ui->combo_selected_handle != NULL || !camera_controls_down) {
return;
}
camera_controls_t controls = context_raw->camera_controls;
if (controls == CAMERA_CONTROLS_ORBIT &&
(operator_shortcut(any_map_get(config_keymap, "action_rotate"), SHORTCUT_TYPE_DOWN) || (mouse_down("right") && !modif && default_keymap))) {
camera_redraws = 2;
f32 dist = camera_distance();
transform_move(camera->base->transform, camera_object_look_world(camera), dist);
transform_rotate(camera->base->transform, vec4_z_axis(), -mouse_movement_x / (float)100 * config_raw->camera_rotation_speed);
transform_rotate(camera->base->transform, camera_object_right_world(camera), -mouse_movement_y / (float)100 * config_raw->camera_rotation_speed);
vec4_t up_world = camera_object_up_world(camera);
if (up_world.z < 0 && !config_raw->camera_upside_down) {
transform_rotate(camera->base->transform, camera_object_right_world(camera), mouse_movement_y / (float)100 * config_raw->camera_rotation_speed);
}
transform_move(camera->base->transform, camera_object_look_world(camera), -dist);
}
else if (controls == CAMERA_CONTROLS_ROTATE &&
(operator_shortcut(any_map_get(config_keymap, "action_rotate"), SHORTCUT_TYPE_DOWN) || (mouse_down("right") && !modif && default_keymap))) {
camera_redraws = 2;
transform_t *t = context_main_object()->base->transform;
vec4_t up = transform_up(t);
transform_rotate(t, up, (mouse_movement_x / (float)120) * config_raw->camera_rotation_speed);
vec4_t right = camera_object_right_world(camera);
transform_rotate(t, right, (mouse_movement_y / (float)120) * config_raw->camera_rotation_speed);
transform_build_matrix(t);
vec4_t tup = transform_up(t);
if (tup.z < 0 && !config_raw->camera_upside_down) {
transform_rotate(t, right, -(mouse_movement_y / (float)120) * config_raw->camera_rotation_speed);
}
}
if (controls == CAMERA_CONTROLS_ROTATE || controls == CAMERA_CONTROLS_ORBIT) {
camera_pan_action(modif, default_keymap);
if (operator_shortcut(any_map_get(config_keymap, "action_zoom"), SHORTCUT_TYPE_DOWN)) {
camera_redraws = 2;
f32 f = camera_get_zoom_delta() / (float)(150 * (1.0 / (float)(camera_distance() / (float)2.0)));
f *= camera_get_zoom_speed();
transform_move(camera->base->transform, camera_object_look(camera), f);
}
if (mouse_wheel_delta != 0 && !modif_key) {
camera_redraws = 2;
f32 f = mouse_wheel_delta * (-0.2) * ((camera_distance() / (float)4.0));
f *= camera_get_zoom_speed();
transform_move(camera->base->transform, camera_object_look(camera), f);
}
}
else if (controls == CAMERA_CONTROLS_FLY && mouse_down("right")) {
bool move_forward = keyboard_down("w") || keyboard_down("up") || mouse_wheel_delta < 0;
bool move_backward = keyboard_down("s") || keyboard_down("down") || mouse_wheel_delta > 0;
bool strafe_left = keyboard_down("a") || keyboard_down("left");
bool strafe_right = keyboard_down("d") || keyboard_down("right");
bool strafe_up = keyboard_down("e");
bool strafe_down = keyboard_down("q");
f32 fast = keyboard_down("shift") ? 2.0 : (keyboard_down("alt") ? 0.5 : 1.0);
if (mouse_wheel_delta != 0) {
fast *= math_abs(mouse_wheel_delta) * 4.0;
}
if (move_forward || move_backward || strafe_right || strafe_left || strafe_up || strafe_down) {
camera_ease += sys_delta() * 15;
if (camera_ease > 1.0) {
camera_ease = 1.0;
}
camera_dir = vec4_create(0, 0, 0, 1.0);
vec4_t look = camera_object_look(camera);
vec4_t right = camera_object_right(camera);
if (move_forward) {
camera_dir = vec4_fadd(camera_dir, look.x, look.y, look.z, 0.0);
}
if (move_backward) {
camera_dir = vec4_fadd(camera_dir, -look.x, -look.y, -look.z, 0.0);
}
if (strafe_right) {
camera_dir = vec4_fadd(camera_dir, right.x, right.y, right.z, 0.0);
}
if (strafe_left) {
camera_dir = vec4_fadd(camera_dir, -right.x, -right.y, -right.z, 0.0);
}
if (strafe_up) {
camera_dir = vec4_fadd(camera_dir, 0, 0, 1, 0.0);
}
if (strafe_down) {
camera_dir = vec4_fadd(camera_dir, 0, 0, -1, 0.0);
}
}
else {
camera_ease -= sys_delta() * 20.0 * camera_ease;
if (camera_ease < 0.0) {
camera_ease = 0.0;
}
}
f32 d = sys_delta() * fast * camera_ease * 2.0 * ((move_forward || move_backward) ? config_raw->camera_zoom_speed : config_raw->camera_pan_speed);
if (d > 0.0) {
transform_move(camera->base->transform, camera_dir, d);
if (context_raw->camera_type == CAMERA_TYPE_ORTHOGRAPHIC) {
viewport_update_camera_type(context_raw->camera_type);
}
}
camera_redraws = 2;
transform_rotate(camera->base->transform, vec4_z_axis(), -mouse_movement_x / (float)200 * config_raw->camera_rotation_speed);
transform_rotate(camera->base->transform, camera_object_right(camera), -mouse_movement_y / (float)200 * config_raw->camera_rotation_speed);
}
if (operator_shortcut(any_map_get(config_keymap, "view_pivot_center"), SHORTCUT_TYPE_STARTED)) {
camera_set_pivot_center_to_mouse();
}
if (operator_shortcut(any_map_get(config_keymap, "rotate_envmap"), SHORTCUT_TYPE_DOWN)) {
camera_redraws = 2;
context_raw->envmap_angle -= mouse_movement_x / (float)100;
}
if (camera_redraws > 0) {
camera_redraws--;
context_raw->ddirty = 2;
if (context_raw->camera_type == CAMERA_TYPE_ORTHOGRAPHIC) {
viewport_update_camera_type(context_raw->camera_type);
}
}
}
f32 camera_distance() {
camera_object_t *camera = scene_camera;
return vec4_dist(camera_origins->buffer[camera_index()]->v, camera->base->transform->loc);
}
i32 camera_index() {
return context_raw->view_index_last > 0 ? 1 : 0;
}
f32 camera_get_zoom_speed() {
i32 sign = config_raw->zoom_direction == ZOOM_DIRECTION_VERTICAL_INVERTED || config_raw->zoom_direction == ZOOM_DIRECTION_HORIZONTAL_INVERTED ||
config_raw->zoom_direction == ZOOM_DIRECTION_VERTICAL_HORIZONTAL_INVERTED
? -1
: 1;
camera_object_t *camera = scene_camera;
f32 fov_adjust = camera->data->fov;
return (config_raw->camera_zoom_speed * sign) / (float)fov_adjust;
}
void camera_reset(i32 view_index) {
camera_object_t *camera = scene_camera;
if (view_index == -1) {
vec4_box_t *v0 = GC_ALLOC_INIT(vec4_box_t, {.v = vec4_create(0, 0, 0, 1)});
vec4_box_t *v1 = GC_ALLOC_INIT(vec4_box_t, {.v = vec4_create(0, 0, 0, 1)});
gc_unroot(camera_origins);
camera_origins = any_array_create_from_raw(
(any[]){
v0,
v1,
},
2);
gc_root(camera_origins);
mat4_box_t *m0 = GC_ALLOC_INIT(mat4_box_t, {.v = mat4_clone(camera->base->transform->local)});
mat4_box_t *m1 = GC_ALLOC_INIT(mat4_box_t, {.v = mat4_clone(camera->base->transform->local)});
gc_unroot(camera_views);
camera_views = any_array_create_from_raw(
(any[]){
m0,
m1,
},
2);
gc_root(camera_views);
}
else {
camera_origins->buffer[view_index]->v = vec4_create(0, 0, 0, 1.0);
camera_views->buffer[view_index]->v = mat4_clone(camera->base->transform->local);
}
#ifdef IRON_IOS
if (config_is_iphone()) {
viewport_zoom(-2.8);
vec4_t right = vec4_mult(transform_right(camera->base->transform), -0.135);
camera->base->transform->loc = vec4_add(camera->base->transform->loc, right);
camera_origins->buffer[camera_index()]->v = vec4_add(camera_origins->buffer[camera_index()]->v, right);
camera_object_build_mat(camera);
}
#endif
}
void camera_pan_action(bool modif, bool default_keymap) {
camera_object_t *camera = scene_camera;
if (operator_shortcut(any_map_get(config_keymap, "action_pan"), SHORTCUT_TYPE_DOWN) || (mouse_down("middle") && !modif && default_keymap)) {
camera_redraws = 2;
f32 f = 150 * (1.0 / (float)(camera_distance() / (float)4.0));
vec4_t look = vec4_mult(transform_look(camera->base->transform), mouse_movement_y / (float)f * config_raw->camera_pan_speed);
vec4_t right = vec4_mult(transform_right(camera->base->transform), -mouse_movement_x / (float)f * config_raw->camera_pan_speed);
camera->base->transform->loc = vec4_add(camera->base->transform->loc, look);
camera->base->transform->loc = vec4_add(camera->base->transform->loc, right);
camera_origins->buffer[camera_index()]->v = vec4_add(camera_origins->buffer[camera_index()]->v, look);
camera_origins->buffer[camera_index()]->v = vec4_add(camera_origins->buffer[camera_index()]->v, right);
camera_object_build_mat(camera);
}
}
f32 camera_get_zoom_delta() {
return config_raw->zoom_direction == ZOOM_DIRECTION_VERTICAL ? -mouse_movement_y
: config_raw->zoom_direction == ZOOM_DIRECTION_VERTICAL_INVERTED ? -mouse_movement_y
: config_raw->zoom_direction == ZOOM_DIRECTION_HORIZONTAL ? mouse_movement_x
: config_raw->zoom_direction == ZOOM_DIRECTION_HORIZONTAL_INVERTED ? mouse_movement_x
: -(mouse_movement_y - mouse_movement_x);
}
void camera_set_pivot_center_to_mouse() {
util_render_pick_pos_nor_tex();
bool is_mesh = math_abs(context_raw->posx_picked) < 50 && math_abs(context_raw->posy_picked) < 50 && math_abs(context_raw->posz_picked) < 50;
if (!is_mesh) {
return;
}
vec4_box_t *o = camera_origins->buffer[camera_index()];
o->v.x = context_raw->posx_picked;
o->v.y = context_raw->posy_picked;
o->v.z = context_raw->posz_picked;
camera_redraws = 2;
camera_object_t *camera = scene_camera;
vec4_t up = vec4_mult(transform_up(camera->base->transform), camera_distance());
camera->base->transform->loc.x = context_raw->posx_picked;
camera->base->transform->loc.y = context_raw->posy_picked;
camera->base->transform->loc.z = context_raw->posz_picked;
camera->base->transform->loc = vec4_add(camera->base->transform->loc, up);
camera_object_build_mat(camera);
}
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