Fix seed not randomizing for particles. Fix seed being stored when fixed seed is off

scene/2d/cpu_particles_2d.cpp

@@ -597,7 +597,7 @@ void CPUParticles2D::_validate_property(PropertyInfo &p_property) const {
 	}
 
 	if (p_property.name == "seed" && !use_fixed_seed) {
-		p_property.usage = PROPERTY_USAGE_NO_EDITOR;
+		p_property.usage = PROPERTY_USAGE_NONE;
 	}
 }
 
@@ -1392,6 +1392,8 @@ void CPUParticles2D::_bind_methods() {
 	BIND_ENUM_CONSTANT(DRAW_ORDER_INDEX);
 	BIND_ENUM_CONSTANT(DRAW_ORDER_LIFETIME);
 
+	ADD_PROPERTY_DEFAULT("seed", 0);
+
 	////////////////////////////////
 
 	ClassDB::bind_method(D_METHOD("set_direction", "direction"), &CPUParticles2D::set_direction);
@@ -1561,6 +1563,7 @@ CPUParticles2D::CPUParticles2D() {
 	set_emitting(true);
 	set_amount(8);
 	set_use_local_coordinates(false);
+	set_seed(Math::rand());
 
 	rng.instantiate();
 

scene/2d/gpu_particles_2d.cpp

@@ -408,7 +408,7 @@ Ref<Texture2D> GPUParticles2D::get_texture() const {
 
 void GPUParticles2D::_validate_property(PropertyInfo &p_property) const {
 	if (p_property.name == "seed" && !use_fixed_seed) {
-		p_property.usage = PROPERTY_USAGE_NO_EDITOR;
+		p_property.usage = PROPERTY_USAGE_NONE;
 	}
 	if (p_property.name == "emitting") {
 		p_property.hint = one_shot ? PROPERTY_HINT_ONESHOT : PROPERTY_HINT_NONE;
@@ -899,6 +899,8 @@ void GPUParticles2D::_bind_methods() {
 	BIND_ENUM_CONSTANT(EMIT_FLAG_VELOCITY);
 	BIND_ENUM_CONSTANT(EMIT_FLAG_COLOR);
 	BIND_ENUM_CONSTANT(EMIT_FLAG_CUSTOM);
+
+	ADD_PROPERTY_DEFAULT("seed", 0);
 }
 
 GPUParticles2D::GPUParticles2D() {
@@ -912,8 +914,8 @@ GPUParticles2D::GPUParticles2D() {
 	one_shot = false; // Needed so that set_emitting doesn't access uninitialized values
 	set_emitting(true);
 	set_one_shot(false);
+	set_seed(Math::rand());
 	set_use_fixed_seed(false);
-	set_seed(0);
 	set_amount(8);
 	set_amount_ratio(1.0);
 	set_lifetime(1);

scene/3d/cpu_particles_3d.cpp

@@ -612,7 +612,7 @@ void CPUParticles3D::_validate_property(PropertyInfo &p_property) const {
 	}
 
 	if (p_property.name == "seed" && !use_fixed_seed) {
-		p_property.usage = PROPERTY_USAGE_NO_EDITOR;
+		p_property.usage = PROPERTY_USAGE_NONE;
 	}
 }
 
@@ -1564,6 +1564,8 @@ void CPUParticles3D::_bind_methods() {
 	BIND_ENUM_CONSTANT(DRAW_ORDER_LIFETIME);
 	BIND_ENUM_CONSTANT(DRAW_ORDER_VIEW_DEPTH);
 
+	ADD_PROPERTY_DEFAULT("seed", 0);
+
 	////////////////////////////////
 
 	ClassDB::bind_method(D_METHOD("set_direction", "direction"), &CPUParticles3D::set_direction);
@@ -1764,6 +1766,7 @@ CPUParticles3D::CPUParticles3D() {
 
 	set_emitting(true);
 	set_amount(8);
+	set_seed(Math::rand());
 
 	rng.instantiate();
 

scene/3d/gpu_particles_3d.cpp

@@ -464,7 +464,7 @@ void GPUParticles3D::_validate_property(PropertyInfo &p_property) const {
 		}
 	}
 	if (p_property.name == "seed" && !use_fixed_seed) {
-		p_property.usage = PROPERTY_USAGE_NO_EDITOR;
+		p_property.usage = PROPERTY_USAGE_NONE;
 	}
 }
 
@@ -868,6 +868,8 @@ void GPUParticles3D::_bind_methods() {
 	BIND_ENUM_CONSTANT(TRANSFORM_ALIGN_Z_BILLBOARD);
 	BIND_ENUM_CONSTANT(TRANSFORM_ALIGN_Y_TO_VELOCITY);
 	BIND_ENUM_CONSTANT(TRANSFORM_ALIGN_Z_BILLBOARD_Y_TO_VELOCITY);
+
+	ADD_PROPERTY_DEFAULT("seed", 0);
 }
 
 GPUParticles3D::GPUParticles3D() {
@@ -877,6 +879,7 @@ GPUParticles3D::GPUParticles3D() {
 	one_shot = false; // Needed so that set_emitting doesn't access uninitialized values
 	set_emitting(true);
 	set_one_shot(false);
+	set_seed(Math::rand());
 	set_amount_ratio(1.0);
 	set_amount(8);
 	set_lifetime(1);
@@ -895,7 +898,6 @@ GPUParticles3D::GPUParticles3D() {
 	set_collision_base_size(collision_base_size);
 	set_transform_align(TRANSFORM_ALIGN_DISABLED);
 	set_use_fixed_seed(false);
-	set_seed(0);
 }
 
 GPUParticles3D::~GPUParticles3D() {