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Support SDL2 half axes and inverted axes mappings.

This commit is contained in:
Marcel Admiraal 2020-05-13 16:37:59 +01:00
parent 804b53bdbb
commit ebff150680
6 changed files with 268 additions and 115 deletions
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1
core/global_constants.cpp
View File

@ -392,6 +392,7 @@ void register_global_constants() {
BIND_GLOBAL_ENUM_CONSTANT(BUTTON_MASK_XBUTTON2);
//joypads
BIND_GLOBAL_ENUM_CONSTANT(JOY_INVALID_OPTION);
BIND_GLOBAL_ENUM_CONSTANT(JOY_BUTTON_0);
BIND_GLOBAL_ENUM_CONSTANT(JOY_BUTTON_1);
BIND_GLOBAL_ENUM_CONSTANT(JOY_BUTTON_2);

2
core/os/input_event.h
View File

@ -61,6 +61,8 @@ enum ButtonList {
enum JoystickList {
JOY_INVALID_OPTION = -1,
JOY_BUTTON_0 = 0,
JOY_BUTTON_1 = 1,
JOY_BUTTON_2 = 2,

3
doc/classes/@GlobalScope.xml
View File

@ -937,6 +937,9 @@
<constant name="BUTTON_MASK_XBUTTON2" value="256" enum="ButtonList">
Extra mouse button 2 mask.
</constant>
<constant name="JOY_INVALID_OPTION" value="-1" enum="JoystickList">
Invalid button or axis.
</constant>
<constant name="JOY_BUTTON_0" value="0" enum="JoystickList">
Gamepad button 0.
</constant>

313
main/input_default.cpp
View File

@ -709,22 +709,6 @@ InputDefault::InputDefault() {
main_loop = NULL;
default_shape = CURSOR_ARROW;
hat_map_default[HAT_UP].type = TYPE_BUTTON;
hat_map_default[HAT_UP].index = JOY_DPAD_UP;
hat_map_default[HAT_UP].value = 0;
hat_map_default[HAT_RIGHT].type = TYPE_BUTTON;
hat_map_default[HAT_RIGHT].index = JOY_DPAD_RIGHT;
hat_map_default[HAT_RIGHT].value = 0;
hat_map_default[HAT_DOWN].type = TYPE_BUTTON;
hat_map_default[HAT_DOWN].index = JOY_DPAD_DOWN;
hat_map_default[HAT_DOWN].value = 0;
hat_map_default[HAT_LEFT].type = TYPE_BUTTON;
hat_map_default[HAT_LEFT].index = JOY_DPAD_LEFT;
hat_map_default[HAT_LEFT].value = 0;
fallback_mapping = -1;
// Parse default mappings.
@ -761,14 +745,8 @@ void InputDefault::joy_button(int p_device, int p_button, bool p_pressed) {
return;
}
const Map<int, JoyEvent>::Element *el = map_db[joy.mapping].buttons.find(p_button);
if (!el) {
//don't process un-mapped events for now, it could mess things up badly for devices with additional buttons/axis
//return _button_event(p_last_id, p_device, p_button, p_pressed);
return;
}
JoyEvent map = _get_mapped_button_event(map_db[joy.mapping], p_button);
JoyEvent map = el->get();
if (map.type == TYPE_BUTTON) {
//fake additional axis event for triggers
if (map.index == JOY_L2 || map.index == JOY_R2) {
@ -831,13 +809,7 @@ void InputDefault::joy_axis(int p_device, int p_axis, const JoyAxis &p_value) {
return;
};
const Map<int, JoyEvent>::Element *el = map_db[joy.mapping].axis.find(p_axis);
if (!el) {
//return _axis_event(p_last_id, p_device, p_axis, p_value);
return;
};
JoyEvent map = el->get();
JoyEvent map = _get_mapped_axis_event(map_db[joy.mapping], p_axis, p_value);
if (map.type == TYPE_BUTTON) {
//send axis event for triggers
@ -906,12 +878,26 @@ void InputDefault::joy_hat(int p_device, int p_val) {
_THREAD_SAFE_METHOD_;
const Joypad &joy = joy_names[p_device];
const JoyEvent *map;
JoyEvent map[HAT_MAX];
if (joy.mapping == -1) {
map = hat_map_default;
} else {
map = map_db[joy.mapping].hat;
map[HAT_UP].type = TYPE_BUTTON;
map[HAT_UP].index = JOY_DPAD_UP;
map[HAT_UP].value = 0;
map[HAT_RIGHT].type = TYPE_BUTTON;
map[HAT_RIGHT].index = JOY_DPAD_RIGHT;
map[HAT_RIGHT].value = 0;
map[HAT_DOWN].type = TYPE_BUTTON;
map[HAT_DOWN].index = JOY_DPAD_DOWN;
map[HAT_DOWN].value = 0;
map[HAT_LEFT].type = TYPE_BUTTON;
map[HAT_LEFT].index = JOY_DPAD_LEFT;
map[HAT_LEFT].value = 0;
if (joy.mapping != -1) {
_get_mapped_hat_events(map_db[joy.mapping], 0, map);
};
int cur_val = joy_names[p_device].hat_current;
@ -955,50 +941,153 @@ void InputDefault::_axis_event(int p_device, int p_axis, float p_value) {
parse_input_event(ievent);
};
InputDefault::JoyEvent InputDefault::_find_to_event(String p_to) {
InputDefault::JoyEvent InputDefault::_get_mapped_button_event(const JoyDeviceMapping &mapping, int p_button) {
JoyEvent event;
event.type = TYPE_MAX;
for (int i = 0; i < mapping.bindings.size(); i++) {
const JoyBinding binding = mapping.bindings[i];
if (binding.inputType == TYPE_BUTTON && binding.input.button == p_button) {
event.type = binding.outputType;
switch (binding.outputType) {
case TYPE_BUTTON:
event.index = binding.output.button;
return event;
case TYPE_AXIS:
event.index = binding.output.axis.axis;
return event;
default:
ERR_PRINT_ONCE("Joypad button mapping error.");
}
}
}
return event;
}
InputDefault::JoyEvent InputDefault::_get_mapped_axis_event(const JoyDeviceMapping &mapping, int p_axis, const JoyAxis &p_value) {
JoyEvent event;
event.type = TYPE_MAX;
for (int i = 0; i < mapping.bindings.size(); i++) {
const JoyBinding binding = mapping.bindings[i];
if (binding.inputType == TYPE_AXIS && binding.input.axis.axis == p_axis) {
float value = p_value.value;
if (binding.input.axis.invert)
value = -value;
if (binding.input.axis.range == FULL_AXIS ||
(binding.input.axis.range == POSITIVE_HALF_AXIS && value > 0) ||
(binding.input.axis.range == NEGATIVE_HALF_AXIS && value < 0)) {
event.type = binding.outputType;
switch (binding.outputType) {
case TYPE_BUTTON:
event.index = binding.output.button;
return event;
case TYPE_AXIS:
event.index = binding.output.axis.axis;
event.value = value;
if (binding.output.axis.range != binding.input.axis.range) {
float shifted_positive_value = 0;
switch (binding.input.axis.range) {
case POSITIVE_HALF_AXIS:
shifted_positive_value = value;
break;
case NEGATIVE_HALF_AXIS:
shifted_positive_value = value + 1;
break;
case FULL_AXIS:
shifted_positive_value = (value + 1) / 2;
break;
}
switch (binding.output.axis.range) {
case POSITIVE_HALF_AXIS:
event.value = shifted_positive_value;
break;
case NEGATIVE_HALF_AXIS:
event.value = shifted_positive_value - 1;
break;
case FULL_AXIS:
event.value = (shifted_positive_value * 2) - 1;
break;
}
}
return event;
default:
ERR_PRINT_ONCE("Joypad axis mapping error.");
}
}
}
}
return event;
}
void InputDefault::_get_mapped_hat_events(const JoyDeviceMapping &mapping, int p_hat, JoyEvent r_events[]) {
for (int i = 0; i < mapping.bindings.size(); i++) {
const JoyBinding binding = mapping.bindings[i];
if (binding.inputType == TYPE_HAT && binding.input.hat.hat == p_hat) {
int index;
switch (binding.input.hat.hat_mask) {
case HAT_MASK_UP:
index = 0;
break;
case HAT_MASK_RIGHT:
index = 1;
break;
case HAT_MASK_DOWN:
index = 2;
break;
case HAT_MASK_LEFT:
index = 3;
break;
default:
ERR_PRINT_ONCE("Joypad button mapping error.");
continue;
}
r_events[index].type = binding.outputType;
switch (binding.outputType) {
case TYPE_BUTTON:
r_events[index].index = binding.output.button;
break;
case TYPE_AXIS:
r_events[index].index = binding.output.axis.axis;
break;
default:
ERR_PRINT_ONCE("Joypad button mapping error.");
}
}
}
}
// string names of the SDL buttons in the same order as input_event.h godot buttons
static const char *buttons[] = { "a", "b", "x", "y", "leftshoulder", "rightshoulder", "lefttrigger", "righttrigger", "leftstick", "rightstick", "back", "start", "dpup", "dpdown", "dpleft", "dpright", "guide", NULL };
static const char *_joy_buttons[] = { "a", "b", "x", "y", "leftshoulder", "rightshoulder", "lefttrigger", "righttrigger", "leftstick", "rightstick", "back", "start", "dpup", "dpdown", "dpleft", "dpright", "guide", nullptr };
static const char *_joy_axes[] = { "leftx", "lefty", "rightx", "righty", nullptr };
static const char *axis[] = { "leftx", "lefty", "rightx", "righty", NULL };
JoystickList InputDefault::_get_output_button(String output) {
JoyEvent ret;
ret.type = -1;
ret.index = 0;
for (int i = 0; _joy_buttons[i]; i++) {
if (output == _joy_buttons[i])
return JoystickList(i);
}
return JoystickList::JOY_INVALID_OPTION;
}
int i = 0;
while (buttons[i]) {
JoystickList InputDefault::_get_output_axis(String output) {
if (p_to == buttons[i]) {
ret.type = TYPE_BUTTON;
ret.index = i;
ret.value = 0;
return ret;
};
++i;
};
i = 0;
while (axis[i]) {
if (p_to == axis[i]) {
ret.type = TYPE_AXIS;
ret.index = i;
ret.value = 0;
return ret;
};
++i;
};
return ret;
};
for (int i = 0; _joy_axes[i]; i++) {
if (output == _joy_axes[i])
return JoystickList(i);
}
return JoystickList::JOY_INVALID_OPTION;
}
void InputDefault::parse_mapping(String p_mapping) {
_THREAD_SAFE_METHOD_;
JoyDeviceMapping mapping;
for (int i = 0; i < HAT_MAX; ++i)
mapping.hat[i].index = 1024 + i;
Vector<String> entry = p_mapping.split(",");
if (entry.size() < 2) {
@ -1017,45 +1106,79 @@ void InputDefault::parse_mapping(String p_mapping) {
if (entry[idx] == "")
continue;
String from = entry[idx].get_slice(":", 1).replace(" ", "");
String to = entry[idx].get_slice(":", 0).replace(" ", "");
String output = entry[idx].get_slice(":", 0).replace(" ", "");
String input = entry[idx].get_slice(":", 1).replace(" ", "");
ERR_CONTINUE_MSG(output.length() < 1 || input.length() < 2,
String(entry[idx] + "\nInvalid device mapping entry: " + entry[idx]));
JoyEvent to_event = _find_to_event(to);
if (to_event.type == -1)
if (output == "platform")
continue;
String etype = from.substr(0, 1);
if (etype == "a") {
JoyAxisRange output_range = FULL_AXIS;
if (output[0] == '+' || output[0] == '-') {
ERR_CONTINUE_MSG(output.length() < 2, String(entry[idx] + "\nInvalid output: " + entry[idx]));
output = output.right(1);
if (output[0] == '+')
output_range = POSITIVE_HALF_AXIS;
else if (output[0] == '-')
output_range = NEGATIVE_HALF_AXIS;
}
int aid = from.substr(1, from.length() - 1).to_int();
mapping.axis[aid] = to_event;
JoyAxisRange input_range = FULL_AXIS;
if (input[0] == '+') {
input_range = POSITIVE_HALF_AXIS;
input = input.right(1);
} else if (input[0] == '-') {
input_range = NEGATIVE_HALF_AXIS;
input = input.right(1);
}
bool invert_axis = false;
if (input[input.length() - 1] == '~')
invert_axis = true;
} else if (etype == "b") {
JoystickList output_button = _get_output_button(output);
JoystickList output_axis = _get_output_axis(output);
ERR_CONTINUE_MSG(output_button == JOY_INVALID_OPTION && output_axis == JOY_INVALID_OPTION,
String(entry[idx] + "\nUnrecognised output string: " + output));
ERR_CONTINUE_MSG(output_button != JOY_INVALID_OPTION && output_axis != JOY_INVALID_OPTION,
String("BUG: Output string matched both button and axis: " + output));
int bid = from.substr(1, from.length() - 1).to_int();
mapping.buttons[bid] = to_event;
JoyBinding binding;
if (output_button != JOY_INVALID_OPTION) {
binding.outputType = TYPE_BUTTON;
binding.output.button = output_button;
} else if (output_axis != JOY_INVALID_OPTION) {
binding.outputType = TYPE_AXIS;
binding.output.axis.axis = output_axis;
binding.output.axis.range = output_range;
}
} else if (etype == "h") {
int hat_value = from.get_slice(".", 1).to_int();
switch (hat_value) {
case 1:
mapping.hat[HAT_UP] = to_event;
switch (input[0]) {
case 'b':
binding.inputType = TYPE_BUTTON;
binding.input.button = input.right(1).to_int();
break;
case 2:
mapping.hat[HAT_RIGHT] = to_event;
case 'a':
binding.inputType = TYPE_AXIS;
binding.input.axis.axis = input.right(1).to_int();
binding.input.axis.range = input_range;
binding.input.axis.invert = invert_axis;
break;
case 4:
mapping.hat[HAT_DOWN] = to_event;
break;
case 8:
mapping.hat[HAT_LEFT] = to_event;
case 'h':
ERR_CONTINUE_MSG(input.length() != 4 || input[2] != '.',
String(entry[idx] + "\nInvalid hat input: " + input));
binding.inputType = TYPE_HAT;
binding.input.hat.hat = input.substr(1, 1).to_int();
binding.input.hat.hat_mask = static_cast<HatMask>(input.right(3).to_int());
break;
default:
ERR_CONTINUE_MSG(true, String(entry[idx] + "\nUnrecognised input string: " + input));
}
mapping.bindings.push_back(binding);
};
};
};
map_db.push_back(mapping);
//printf("added mapping with uuid %ls\n", mapping.uid.c_str());
};
void InputDefault::add_joy_mapping(String p_mapping, bool p_update_existing) {

51
main/input_default.h
View File

@ -148,26 +148,61 @@ private:
TYPE_MAX,
};
enum JoyAxisRange {
NEGATIVE_HALF_AXIS = -1,
FULL_AXIS = 0,
POSITIVE_HALF_AXIS = 1
};
struct JoyEvent {
int type;
int index;
int value;
float value;
};
struct JoyBinding {
JoyType inputType;
union {
int button;
struct {
int axis;
JoyAxisRange range;
bool invert;
} axis;
struct {
int hat;
HatMask hat_mask;
} hat;
} input;
JoyType outputType;
union {
JoystickList button;
struct {
JoystickList axis;
JoyAxisRange range;
} axis;
} output;
};
struct JoyDeviceMapping {
String uid;
String name;
Map<int, JoyEvent> buttons;
Map<int, JoyEvent> axis;
JoyEvent hat[HAT_MAX];
Vector<JoyBinding> bindings;
};
JoyEvent hat_map_default[HAT_MAX];
Vector<JoyDeviceMapping> map_db;
JoyEvent _find_to_event(String p_to);
JoyEvent _get_mapped_button_event(const JoyDeviceMapping &mapping, int p_button);
JoyEvent _get_mapped_axis_event(const JoyDeviceMapping &mapping, int p_axis, const JoyAxis &p_value);
void _get_mapped_hat_events(const JoyDeviceMapping &mapping, int p_hat, JoyEvent r_events[HAT_MAX]);
JoystickList _get_output_button(String output);
JoystickList _get_output_axis(String output);
void _button_event(int p_device, int p_index, bool p_pressed);
void _axis_event(int p_device, int p_axis, float p_value);
float _handle_deadzone(int p_device, int p_axis, float p_value);

11
main/main_builders.py
View File

@ -99,17 +99,6 @@ def make_default_controller_mappings(target, source, env):
src_path, current_platform, platform_mappings[current_platform][guid]
)
)
valid_mapping = True
for input_map in line_parts[2:]:
if "+" in input_map or "-" in input_map or "~" in input_map:
g.write(
"// WARNING - DISCARDED UNSUPPORTED MAPPING TYPE FROM DATABASE {}: {} {}\n".format(
src_path, current_platform, line
)
)
valid_mapping = False
break
if valid_mapping:
platform_mappings[current_platform][guid] = line
platform_variables = {