From a3ef092f18842b369183f43772fc47830e2924ff Mon Sep 17 00:00:00 2001 From: lawnjelly Date: Sun, 14 May 2023 08:53:36 +0100 Subject: [PATCH] Input - fix just pressed and released with short presses Previously if an action was both pressed and released on the same tick or frame, `is_action_just_pressed()` would return false, resulting in missed input. This PR separately the timestamp for pressing and releasing so each can be tested independently. --- core/input/input.cpp | 61 ++++++++++++++++++++------------- core/input/input.h | 15 ++++---- doc/classes/Input.xml | 6 ++-- doc/classes/ProjectSettings.xml | 5 +++ 4 files changed, 56 insertions(+), 31 deletions(-) diff --git a/core/input/input.cpp b/core/input/input.cpp index 13483894813..70cebad7388 100644 --- a/core/input/input.cpp +++ b/core/input/input.cpp @@ -297,10 +297,13 @@ bool Input::is_action_just_pressed(const StringName &p_action, bool p_exact) con return false; } + // Backward compatibility for legacy behavior, only return true if currently pressed. + bool pressed_requirement = legacy_just_pressed_behavior ? E->value.pressed : true; + if (Engine::get_singleton()->is_in_physics_frame()) { - return E->value.pressed && E->value.physics_frame == Engine::get_singleton()->get_physics_frames(); + return pressed_requirement && E->value.pressed_physics_frame == Engine::get_singleton()->get_physics_frames(); } else { - return E->value.pressed && E->value.process_frame == Engine::get_singleton()->get_process_frames(); + return pressed_requirement && E->value.pressed_process_frame == Engine::get_singleton()->get_process_frames(); } } @@ -315,10 +318,13 @@ bool Input::is_action_just_released(const StringName &p_action, bool p_exact) co return false; } + // Backward compatibility for legacy behavior, only return true if currently released. + bool released_requirement = legacy_just_pressed_behavior ? !E->value.pressed : true; + if (Engine::get_singleton()->is_in_physics_frame()) { - return !E->value.pressed && E->value.physics_frame == Engine::get_singleton()->get_physics_frames(); + return released_requirement && E->value.released_physics_frame == Engine::get_singleton()->get_physics_frames(); } else { - return !E->value.pressed && E->value.process_frame == Engine::get_singleton()->get_process_frames(); + return released_requirement && E->value.released_process_frame == Engine::get_singleton()->get_process_frames(); } } @@ -686,19 +692,24 @@ void Input::_parse_input_event_impl(const Ref &p_event, bool p_is_em for (const KeyValue &E : InputMap::get_singleton()->get_action_map()) { if (InputMap::get_singleton()->event_is_action(p_event, E.key)) { + Action &action = action_state[E.key]; // If not echo and action pressed state has changed if (!p_event->is_echo() && is_action_pressed(E.key, false) != p_event->is_action_pressed(E.key)) { - Action action; - action.physics_frame = Engine::get_singleton()->get_physics_frames(); - action.process_frame = Engine::get_singleton()->get_process_frames(); - action.pressed = p_event->is_action_pressed(E.key); + if (p_event->is_action_pressed(E.key)) { + action.pressed = true; + action.pressed_physics_frame = Engine::get_singleton()->get_physics_frames(); + action.pressed_process_frame = Engine::get_singleton()->get_process_frames(); + } else { + action.pressed = false; + action.released_physics_frame = Engine::get_singleton()->get_physics_frames(); + action.released_process_frame = Engine::get_singleton()->get_process_frames(); + } action.strength = 0.0f; action.raw_strength = 0.0f; action.exact = InputMap::get_singleton()->event_is_action(p_event, E.key, true); - action_state[E.key] = action; } - action_state[E.key].strength = p_event->get_action_strength(E.key); - action_state[E.key].raw_strength = p_event->get_action_raw_strength(E.key); + action.strength = p_event->get_action_strength(E.key); + action.raw_strength = p_event->get_action_raw_strength(E.key); } } @@ -813,29 +824,27 @@ Point2i Input::warp_mouse_motion(const Ref &p_motion, con } void Input::action_press(const StringName &p_action, float p_strength) { - Action action; + // Create or retrieve existing action. + Action &action = action_state[p_action]; - action.physics_frame = Engine::get_singleton()->get_physics_frames(); - action.process_frame = Engine::get_singleton()->get_process_frames(); + action.pressed_physics_frame = Engine::get_singleton()->get_physics_frames(); + action.pressed_process_frame = Engine::get_singleton()->get_process_frames(); action.pressed = true; action.strength = p_strength; action.raw_strength = p_strength; action.exact = true; - - action_state[p_action] = action; } void Input::action_release(const StringName &p_action) { - Action action; + // Create or retrieve existing action. + Action &action = action_state[p_action]; - action.physics_frame = Engine::get_singleton()->get_physics_frames(); - action.process_frame = Engine::get_singleton()->get_process_frames(); + action.released_physics_frame = Engine::get_singleton()->get_physics_frames(); + action.released_process_frame = Engine::get_singleton()->get_process_frames(); action.pressed = false; - action.strength = 0.f; - action.raw_strength = 0.f; + action.strength = 0.0f; + action.raw_strength = 0.0f; action.exact = true; - - action_state[p_action] = action; } void Input::set_emulate_touch_from_mouse(bool p_emulate) { @@ -1531,6 +1540,12 @@ Input::Input() { parse_mapping(entries[i]); } } + + legacy_just_pressed_behavior = GLOBAL_DEF("input_devices/compatibility/legacy_just_pressed_behavior", false); + if (Engine::get_singleton()->is_editor_hint()) { + // Always use standard behaviour in the editor. + legacy_just_pressed_behavior = false; + } } Input::~Input() { diff --git a/core/input/input.h b/core/input/input.h index c254650ef88..9cc596ee903 100644 --- a/core/input/input.h +++ b/core/input/input.h @@ -96,14 +96,17 @@ private: Vector3 gyroscope; Vector2 mouse_pos; int64_t mouse_window = 0; + bool legacy_just_pressed_behavior = false; struct Action { - uint64_t physics_frame; - uint64_t process_frame; - bool pressed; - bool exact; - float strength; - float raw_strength; + uint64_t pressed_physics_frame = UINT64_MAX; + uint64_t pressed_process_frame = UINT64_MAX; + uint64_t released_physics_frame = UINT64_MAX; + uint64_t released_process_frame = UINT64_MAX; + bool pressed = false; + bool exact = true; + float strength = 0.0f; + float raw_strength = 0.0f; }; HashMap action_state; diff --git a/doc/classes/Input.xml b/doc/classes/Input.xml index a5c7925d17b..fab4d2385b0 100644 --- a/doc/classes/Input.xml +++ b/doc/classes/Input.xml @@ -179,9 +179,10 @@ - Returns [code]true[/code] when the user starts pressing the action event, meaning it's [code]true[/code] only on the frame that the user pressed down the button. + Returns [code]true[/code] when the user has [i]started[/i] pressing the action event in the current frame or physics tick. It will only return [code]true[/code] on the frame or tick that the user pressed down the button. This is useful for code that needs to run only once when an action is pressed, instead of every frame while it's pressed. If [param exact_match] is [code]false[/code], it ignores additional input modifiers for [InputEventKey] and [InputEventMouseButton] events, and the direction for [InputEventJoypadMotion] events. + [b]Note:[/b] Returning [code]true[/code] does not imply that the action is [i]still[/i] pressed. An action can be pressed and released again rapidly, and [code]true[/code] will still be returned so as not to miss input. [b]Note:[/b] Due to keyboard ghosting, [method is_action_just_pressed] may return [code]false[/code] even if one of the action's keys is pressed. See [url=$DOCS_URL/tutorials/inputs/input_examples.html#keyboard-events]Input examples[/url] in the documentation for more information. @@ -190,7 +191,8 @@ - Returns [code]true[/code] when the user stops pressing the action event, meaning it's [code]true[/code] only on the frame that the user released the button. + Returns [code]true[/code] when the user [i]stops[/i] pressing the action event in the current frame or physics tick. It will only return [code]true[/code] on the frame or tick that the user releases the button. + [b]Note:[/b] Returning [code]true[/code] does not imply that the action is [i]still[/i] not pressed. An action can be released and pressed again rapidly, and [code]true[/code] will still be returned so as not to miss input. If [param exact_match] is [code]false[/code], it ignores additional input modifiers for [InputEventKey] and [InputEventMouseButton] events, and the direction for [InputEventJoypadMotion] events. diff --git a/doc/classes/ProjectSettings.xml b/doc/classes/ProjectSettings.xml index 1a79146f96a..31cc3d93860 100644 --- a/doc/classes/ProjectSettings.xml +++ b/doc/classes/ProjectSettings.xml @@ -1265,6 +1265,11 @@ Enabling this can greatly improve the responsiveness to input, specially in devices that need to run multiple physics frames per visible (process) frame, because they can't run at the target frame rate. [b]Note:[/b] Currently implemented only on Android. + + If [code]true[/code], [method Input.is_action_just_pressed] and [method Input.is_action_just_released] will only return [code]true[/code] if the action is still in the respective state, i.e. an action that is pressed [i]and[/i] released on the same frame will be missed. + If [code]false[/code], no input will be lost. + [b]Note:[/b] You should in nearly all cases prefer the [code]false[/code] setting. The legacy behavior is to enable supporting old projects that rely on the old logic, without changes to script. + Specifies the tablet driver to use. If left empty, the default driver will be used. [b]Note:[/b] The driver in use can be overridden at runtime via the [code]--tablet-driver[/code] [url=$DOCS_URL/tutorials/editor/command_line_tutorial.html]command line argument[/url].