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Add preview of the Camera2D's screen boundaries 

Closes #3365
This commit is contained in:
Bojidar Marinov 2016-04-19 16:07:06 +03:00
parent 206895afae
commit e7f66a88d6
1 changed files with 33 additions and 6 deletions
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39
scene/2d/camera_2d.cpp
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@ -37,8 +37,7 @@ void Camera2D::_update_scroll() {
return;
if (get_tree()->is_editor_hint()) {
// update(); //will just be drawn
//??
update(); //will just be drawn
return;
}
@ -85,7 +84,7 @@ Matrix32 Camera2D::get_camera_transform() {
if (anchor_mode==ANCHOR_MODE_DRAG_CENTER) {
if (h_drag_enabled) {
if (h_drag_enabled && !get_tree()->is_editor_hint()) {
camera_pos.x = MIN( camera_pos.x, (new_camera_pos.x + screen_size.x * 0.5 * drag_margin[MARGIN_RIGHT]));
camera_pos.x = MAX( camera_pos.x, (new_camera_pos.x - screen_size.x * 0.5 * drag_margin[MARGIN_LEFT]));
} else {
@ -97,7 +96,7 @@ Matrix32 Camera2D::get_camera_transform() {
}
}
if (v_drag_enabled) {
if (v_drag_enabled && !get_tree()->is_editor_hint()) {
camera_pos.y = MIN( camera_pos.y, (new_camera_pos.y + screen_size.y * 0.5 * drag_margin[MARGIN_BOTTOM]));
camera_pos.y = MAX( camera_pos.y, (new_camera_pos.y - screen_size.y * 0.5 * drag_margin[MARGIN_TOP]));
@ -118,7 +117,7 @@ Matrix32 Camera2D::get_camera_transform() {
if (smoothing_enabled) {
if (smoothing_enabled && !get_tree()->is_editor_hint()) {
float c = smoothing*get_fixed_process_delta_time();
smoothed_camera_pos = ((camera_pos-smoothed_camera_pos)*c)+smoothed_camera_pos;
@ -258,6 +257,34 @@ void Camera2D::_notification(int p_what) {
viewport=NULL;
} break;
case NOTIFICATION_DRAW: {
if (!is_inside_tree() || !get_tree()->is_editor_hint())
break;
Color area_axis_color(0.5, 0.42, 0.87, 0.63);
float area_axis_width = 1;
if(current)
area_axis_width = 3;
Matrix32 inv_camera_transform = get_camera_transform().affine_inverse();
Size2 screen_size = get_viewport_rect().size;
Vector2 screen_endpoints[4]= {
inv_camera_transform.xform(Vector2(0, 0)),
inv_camera_transform.xform(Vector2(screen_size.width,0)),
inv_camera_transform.xform(Vector2(screen_size.width, screen_size.height)),
inv_camera_transform.xform(Vector2(0, screen_size.height))
};
Matrix32 inv_transform = get_transform().affine_inverse(); // undo global space
draw_set_transform(inv_transform.get_origin(), inv_transform.get_rotation(), inv_transform.get_scale());
for(int i=0;i<4;i++) {
draw_line(screen_endpoints[i], screen_endpoints[(i+1)%4], area_axis_color, area_axis_width);
}
} break;
}
}
@ -383,7 +410,7 @@ void Camera2D::force_update_scroll() {
void Camera2D::set_follow_smoothing(float p_speed) {
smoothing=p_speed;
if (smoothing>0)
if (smoothing>0 && !(is_inside_tree() && get_tree()->is_editor_hint()))
set_fixed_process(true);
else
set_fixed_process(false);