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Merge pull request #60389 from timothyqiu/raycast2d-shape

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[3.x] Improve RayCast2D debug shape
This commit is contained in:
Rémi Verschelde 2022-04-27 08:07:42 +02:00 committed by GitHub
commit ad76e071fa
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2 changed files with 47 additions and 26 deletions
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71
scene/2d/ray_cast_2d.cpp
View file

@ -159,31 +159,7 @@ void RayCast2D::_notification(int p_what) {
if (!Engine::get_singleton()->is_editor_hint() && !get_tree()->is_debugging_collisions_hint()) {
break;
}
Transform2D xf;
xf.rotate(cast_to.angle());
xf.translate(Vector2(cast_to.length(), 0));
// Draw an arrow indicating where the RayCast is pointing to
Color draw_col = get_tree()->get_debug_collisions_color();
if (!enabled) {
float g = draw_col.get_v();
draw_col.r = g;
draw_col.g = g;
draw_col.b = g;
}
draw_line(Vector2(), cast_to, draw_col, 2, true);
Vector<Vector2> pts;
float tsize = 8;
pts.push_back(xf.xform(Vector2(tsize, 0)));
pts.push_back(xf.xform(Vector2(0, Math_SQRT12 * tsize)));
pts.push_back(xf.xform(Vector2(0, -Math_SQRT12 * tsize)));
Vector<Color> cols;
for (int i = 0; i < 3; i++) {
cols.push_back(draw_col);
}
draw_primitive(pts, cols, Vector<Vector2>());
_draw_debug_shape();
} break;
case NOTIFICATION_INTERNAL_PHYSICS_PROCESS: {
@ -212,7 +188,7 @@ void RayCast2D::_update_raycast_state() {
}
Physics2DDirectSpaceState::RayResult rr;
bool prev_collision_state = collided;
if (dss->intersect_ray(gt.get_origin(), gt.xform(to), rr, exclude, collision_mask, collide_with_bodies, collide_with_areas)) {
collided = true;
against = rr.collider_id;
@ -224,6 +200,49 @@ void RayCast2D::_update_raycast_state() {
against = 0;
against_shape = 0;
}
if (prev_collision_state != collided) {
update();
}
}
void RayCast2D::_draw_debug_shape() {
Color draw_col = collided ? Color(1.0, 0.01, 0) : get_tree()->get_debug_collisions_color();
if (!enabled) {
float g = draw_col.get_v();
draw_col.r = g;
draw_col.g = g;
draw_col.b = g;
}
// Draw an arrow indicating where the RayCast is pointing to.
const real_t max_arrow_size = 6;
const real_t line_width = 1.4;
const real_t line_length = cast_to.length();
bool no_line = line_length < line_width;
real_t arrow_size = CLAMP(line_length * 2 / 3, line_width, max_arrow_size);
if (no_line) {
arrow_size = line_length;
} else {
draw_line(Vector2(), cast_to - cast_to.normalized() * arrow_size, draw_col, line_width);
}
Transform2D xf;
xf.rotate(cast_to.angle());
xf.translate(Vector2(no_line ? 0 : line_length - arrow_size, 0));
Vector<Vector2> pts;
pts.push_back(xf.xform(Vector2(arrow_size, 0)));
pts.push_back(xf.xform(Vector2(0, 0.5 * arrow_size)));
pts.push_back(xf.xform(Vector2(0, -0.5 * arrow_size)));
Vector<Color> cols;
cols.push_back(draw_col);
cols.push_back(draw_col);
cols.push_back(draw_col);
draw_primitive(pts, cols, Vector<Vector2>());
}
void RayCast2D::force_raycast_update() {

2
scene/2d/ray_cast_2d.h
View file

@ -51,6 +51,8 @@ class RayCast2D : public Node2D {
bool collide_with_areas;
bool collide_with_bodies;
void _draw_debug_shape();
protected:
void _notification(int p_what);
void _update_raycast_state();