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Merge pull request #102249 from Arnklit/particles2d-emission-shapes

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Add emission shape gizmos to Particles2D
This commit is contained in:
Thaddeus Crews
2025-03-11 14:01:00 -05:00
parent deb9705b77 03812fde8a
commit e54a4408ad
6 changed files with 186 additions and 19 deletions
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74
scene/2d/cpu_particles_2d.cpp
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@@ -116,7 +116,14 @@ void CPUParticles2D::set_use_local_coordinates(bool p_enable) {
// We only need NOTIFICATION_TRANSFORM_CHANGED
// when following an interpolated target.
#ifdef TOOLS_ENABLED
set_notify_transform(_interpolation_data.interpolated_follow || (Engine::get_singleton()->is_editor_hint() && !local_coords));
#else
set_notify_transform(_interpolation_data.interpolated_follow);
#endif
queue_redraw();
}
void CPUParticles2D::set_speed_scale(double p_scale) {
@@ -474,14 +481,35 @@ void CPUParticles2D::set_emission_shape(EmissionShape p_shape) {
ERR_FAIL_INDEX(p_shape, EMISSION_SHAPE_MAX);
emission_shape = p_shape;
notify_property_list_changed();
#ifdef TOOLS_ENABLED
if (Engine::get_singleton()->is_editor_hint()) {
queue_redraw();
}
#endif
}
void CPUParticles2D::set_emission_sphere_radius(real_t p_radius) {
if (p_radius == emission_sphere_radius) {
return;
}
emission_sphere_radius = p_radius;
#ifdef TOOLS_ENABLED
if (Engine::get_singleton()->is_editor_hint()) {
queue_redraw();
}
#endif
}
void CPUParticles2D::set_emission_rect_extents(Vector2 p_extents) {
if (p_extents == emission_rect_extents) {
return;
}
emission_rect_extents = p_extents;
#ifdef TOOLS_ENABLED
if (Engine::get_singleton()->is_editor_hint()) {
queue_redraw();
}
#endif
}
void CPUParticles2D::set_emission_points(const Vector<Vector2> &p_points) {
@@ -569,6 +597,16 @@ void CPUParticles2D::set_seed(uint32_t p_seed) {
seed = p_seed;
}
#ifdef TOOLS_ENABLED
void CPUParticles2D::set_show_gizmos(bool p_show_gizmos) {
if (show_gizmos == p_show_gizmos) {
return;
}
show_gizmos = p_show_gizmos;
queue_redraw();
}
#endif
uint32_t CPUParticles2D::get_seed() const {
return seed;
}
@@ -1224,6 +1262,13 @@ void CPUParticles2D::_notification(int p_what) {
}
RS::get_singleton()->canvas_item_add_multimesh(get_canvas_item(), multimesh, texrid);
#ifdef TOOLS_ENABLED
if (show_gizmos) {
_draw_emission_gizmo();
}
#endif
} break;
case NOTIFICATION_INTERNAL_PROCESS: {
@@ -1245,6 +1290,11 @@ void CPUParticles2D::_notification(int p_what) {
_interpolation_data.global_xform_curr = get_global_transform();
}
}
#ifdef TOOLS_ENABLED
if (!local_coords) {
queue_redraw();
}
#endif
} break;
case NOTIFICATION_RESET_PHYSICS_INTERPOLATION: {
@@ -1255,6 +1305,30 @@ void CPUParticles2D::_notification(int p_what) {
}
}
#ifdef TOOLS_ENABLED
void CPUParticles2D::_draw_emission_gizmo() {
Color emission_ring_color = Color(0.8, 0.7, 0.4, 0.4);
Transform2D gizmo_transform;
if (!local_coords) {
gizmo_transform = get_global_transform();
}
draw_set_transform_matrix(gizmo_transform);
switch (emission_shape) {
case CPUParticles2D::EMISSION_SHAPE_RECTANGLE:
draw_rect(Rect2(-emission_rect_extents, emission_rect_extents * 2.0), emission_ring_color, false);
break;
case CPUParticles2D::EMISSION_SHAPE_SPHERE:
case CPUParticles2D::EMISSION_SHAPE_SPHERE_SURFACE:
draw_circle(Vector2(), emission_sphere_radius, emission_ring_color, false);
break;
default:
break;
}
}
#endif
void CPUParticles2D::convert_from_particles(Node *p_particles) {
GPUParticles2D *gpu_particles = Object::cast_to<GPUParticles2D>(p_particles);
ERR_FAIL_NULL_MSG(gpu_particles, "Only GPUParticles2D nodes can be converted to CPUParticles2D.");