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Fix tween_method() type validation

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This commit is contained in:
kobewi 2023-02-12 22:08:25 +01:00
parent 72c5b56d04
commit 17fe5c2b23
2 changed files with 22 additions and 10 deletions
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30
scene/animation/tween.cpp
View file

@ -60,6 +60,20 @@ void Tweener::_bind_methods() {
ADD_SIGNAL(MethodInfo("finished"));
}
bool Tween::_validate_type_match(const Variant &p_from, Variant &r_to) {
if (p_from.get_type() != r_to.get_type()) {
// Cast r_to between double and int to avoid minor annoyances.
if (p_from.get_type() == Variant::FLOAT && r_to.get_type() == Variant::INT) {
r_to = double(r_to);
} else if (p_from.get_type() == Variant::INT && r_to.get_type() == Variant::FLOAT) {
r_to = int(r_to);
} else {
ERR_FAIL_V_MSG(false, "Type mismatch between initial and final value: " + Variant::get_type_name(p_from.get_type()) + " and " + Variant::get_type_name(r_to.get_type()));
}
}
return true;
}
void Tween::_start_tweeners() {
if (tweeners.is_empty()) {
dead = true;
@ -85,16 +99,8 @@ Ref<PropertyTweener> Tween::tween_property(Object *p_target, NodePath p_property
ERR_FAIL_COND_V_MSG(!valid, nullptr, "Tween invalid. Either finished or created outside scene tree.");
ERR_FAIL_COND_V_MSG(started, nullptr, "Can't append to a Tween that has started. Use stop() first.");
Variant::Type property_type = p_target->get_indexed(p_property.get_as_property_path().get_subnames()).get_type();
if (property_type != p_to.get_type()) {
// Cast p_to between double and int to avoid minor annoyances.
if (property_type == Variant::FLOAT && p_to.get_type() == Variant::INT) {
p_to = double(p_to);
} else if (property_type == Variant::INT && p_to.get_type() == Variant::FLOAT) {
p_to = int(p_to);
} else {
ERR_FAIL_V_MSG(Ref<PropertyTweener>(), "Type mismatch between property and final value: " + Variant::get_type_name(property_type) + " and " + Variant::get_type_name(p_to.get_type()));
}
if (!_validate_type_match(p_target->get_indexed(p_property.get_as_property_path().get_subnames()), p_to)) {
return nullptr;
}
Ref<PropertyTweener> tweener = memnew(PropertyTweener(p_target, p_property, p_to, p_duration));
@ -124,6 +130,10 @@ Ref<MethodTweener> Tween::tween_method(Callable p_callback, Variant p_from, Vari
ERR_FAIL_COND_V_MSG(!valid, nullptr, "Tween invalid. Either finished or created outside scene tree.");
ERR_FAIL_COND_V_MSG(started, nullptr, "Can't append to a Tween that has started. Use stop() first.");
if (!_validate_type_match(p_from, p_to)) {
return nullptr;
}
Ref<MethodTweener> tweener = memnew(MethodTweener(p_callback, p_from, p_to, p_duration));
append(tweener);
return tweener;

2
scene/animation/tween.h
View file

@ -47,6 +47,7 @@ public:
protected:
static void _bind_methods();
Ref<Tween> tween;
double elapsed_time = 0;
bool finished = false;
@ -125,6 +126,7 @@ private:
void _start_tweeners();
void _stop_internal(bool p_reset);
bool _validate_type_match(const Variant &p_from, Variant &r_to);
protected:
static void _bind_methods();