Parse SDL game controller half axis and inverted axis entries.

This commit is contained in:
Marcel Admiraal 2020-04-23 10:16:09 +01:00
parent a92f5f3061
commit 1176e078b9
3 changed files with 287 additions and 120 deletions

View File

@ -831,21 +831,9 @@ void Input::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) {
float value = p_pressed ? 1.0f : 0.0f;
int axis = map.index == JOY_L2 ? JOY_ANALOG_L2 : JOY_ANALOG_R2;
_axis_event(p_device, axis, value);
}
_button_event(p_device, map.index, p_pressed);
return;
}
@ -901,13 +889,7 @@ void Input::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);
if (map.type == TYPE_BUTTON) {
//send axis event for triggers
@ -976,12 +958,26 @@ void Input::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 = SDL_BUTTON_DPAD_UP;
map[HAT_UP].value = 0;
map[HAT_RIGHT].type = TYPE_BUTTON;
map[HAT_RIGHT].index = SDL_BUTTON_DPAD_RIGHT;
map[HAT_RIGHT].value = 0;
map[HAT_DOWN].type = TYPE_BUTTON;
map[HAT_DOWN].index = SDL_BUTTON_DPAD_DOWN;
map[HAT_DOWN].value = 0;
map[HAT_LEFT].type = TYPE_BUTTON;
map[HAT_LEFT].index = SDL_BUTTON_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;
@ -1025,50 +1021,145 @@ void Input::_axis_event(int p_device, int p_axis, float p_value) {
parse_input_event(ievent);
};
Input::JoyEvent Input::_find_to_event(String p_to) {
Input::JoyEvent Input::_get_mapped_button_event(const JoyDeviceMapping &mapping, int p_button) {
// 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", nullptr };
JoyEvent event;
event.type = TYPE_MAX;
static const char *axis[] = { "leftx", "lefty", "rightx", "righty", nullptr };
for (int i = 0; i < mapping.bindings.size(); i++) {
const SDLExtendedJoyBind 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;
break;
case TYPE_AXIS:
event.index = binding.output.axis.axis;
break;
default:
ERR_PRINT_ONCE("Joypad button mapping error.");
}
}
}
return event;
}
JoyEvent ret;
ret.type = -1;
ret.index = 0;
Input::JoyEvent Input::_get_mapped_axis_event(const JoyDeviceMapping &mapping, int p_axis) {
int i = 0;
while (buttons[i]) {
JoyEvent event;
event.type = TYPE_MAX;
if (p_to == buttons[i]) {
ret.type = TYPE_BUTTON;
ret.index = i;
ret.value = 0;
return ret;
};
++i;
};
for (int i = 0; i < mapping.bindings.size(); i++) {
const SDLExtendedJoyBind binding = mapping.bindings[i];
if (binding.inputType == TYPE_AXIS && binding.input.axis.axis == p_axis) {
event.type = binding.outputType;
switch (binding.outputType) {
case TYPE_BUTTON:
event.index = binding.output.button;
break;
case TYPE_AXIS:
event.index = binding.output.axis.axis;
break;
default:
ERR_PRINT_ONCE("Joypad button mapping error.");
}
}
}
return event;
}
i = 0;
while (axis[i]) {
void Input::_get_mapped_hat_events(const JoyDeviceMapping &mapping, int p_hat, JoyEvent r_events[]) {
if (p_to == axis[i]) {
ret.type = TYPE_AXIS;
ret.index = i;
ret.value = 0;
return ret;
};
++i;
};
for (int i = 0; i < mapping.bindings.size(); i++) {
const SDLExtendedJoyBind binding = mapping.bindings[i];
if (binding.inputType == TYPE_HAT && binding.input.hat.hat == p_hat) {
return ret;
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.");
}
}
}
}
static const char *sdl_buttons[] = {
"a",
"b",
"x",
"y",
"back",
"guide",
"start",
"leftstick",
"rightstick",
"leftshoulder",
"rightshoulder",
"dpup",
"dpdown",
"dpleft",
"dpright",
nullptr
};
Input::SDLJoyButton Input::_get_output_button(String output) {
for (int i = 0; sdl_buttons[i]; i++) {
if (output == sdl_buttons[i])
return SDLJoyButton(i);
}
return SDLJoyButton::SDL_INVALID_BUTTON;
}
static const char *sdl_axes[] = {
"leftx",
"lefty",
"rightx",
"righty",
"lefttrigger",
"righttrigger",
nullptr
};
Input::SDLJoyAxis Input::_get_output_axis(String output) {
for (int i = 0; sdl_axes[i]; i++) {
if (output == sdl_axes[i])
return SDLJoyAxis(i);
}
return SDLJoyAxis::SDL_INVALID_AXIS;
}
void Input::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) {
@ -1087,45 +1178,83 @@ void Input::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") {
SDLJoyButton output_button = _get_output_button(output);
SDLJoyAxis output_axis = _get_output_axis(output);
ERR_CONTINUE_MSG(output_button == SDL_INVALID_BUTTON && output_axis == SDL_INVALID_AXIS,
String(entry[idx] + "\nUnrecognised output string: " + output));
ERR_CONTINUE_MSG(output_button != SDL_INVALID_BUTTON && output_axis != SDL_INVALID_AXIS,
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;
SDLExtendedJoyBind binding;
if (output_button != SDL_INVALID_BUTTON) {
binding.outputType = TYPE_BUTTON;
binding.output.button = output_button;
} else if (output_axis != SDL_INVALID_AXIS) {
binding.outputType = TYPE_AXIS;
binding.output.axis.axis = output_axis;
binding.output.axis.range = output_range;
}
} else if (etype == "h") {
switch (input[0]) {
case 'b':
binding.inputType = TYPE_BUTTON;
binding.input.button = input.right(1).to_int();
break;
case 'a':
binding.inputType = TYPE_AXIS;
binding.input.axis.axis = input.right(1).to_int();
binding.input.axis.range = input_range;
if (invert_axis) {
int int_range = static_cast<int>(input_range);
int_range = -int_range;
binding.input.axis.range = static_cast<JoyAxisRange>(int_range);
}
break;
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));
}
int hat_value = from.get_slice(".", 1).to_int();
switch (hat_value) {
case 1:
mapping.hat[HAT_UP] = to_event;
break;
case 2:
mapping.hat[HAT_RIGHT] = to_event;
break;
case 4:
mapping.hat[HAT_DOWN] = to_event;
break;
case 8:
mapping.hat[HAT_LEFT] = to_event;
break;
};
};
mapping.bindings.push_back(binding);
};
map_db.push_back(mapping);
//printf("added mapping with uuid %ls\n", mapping.uid.c_str());
};
void Input::add_joy_mapping(String p_mapping, bool p_update_existing) {
@ -1268,22 +1397,6 @@ Input::Input() {
event_dispatch_function = nullptr;
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.

View File

@ -183,26 +183,91 @@ private:
TYPE_MAX,
};
enum SDLJoyButton {
SDL_INVALID_BUTTON = -1,
SDL_BUTTON_A,
SDL_BUTTON_B,
SDL_BUTTON_X,
SDL_BUTTON_Y,
SDL_BUTTON_BACK,
SDL_BUTTON_GUIDE,
SDL_BUTTON_START,
SDL_BUTTON_LEFTSTICK,
SDL_BUTTON_RIGHTSTICK,
SDL_BUTTON_LEFTSHOULDER,
SDL_BUTTON_RIGHTSHOULDER,
SDL_BUTTON_DPAD_UP,
SDL_BUTTON_DPAD_DOWN,
SDL_BUTTON_DPAD_LEFT,
SDL_BUTTON_DPAD_RIGHT,
SDL_BUTTON_MAX
};
enum SDLJoyAxis {
SDL_INVALID_AXIS = -1,
SDL_AXIS_LEFTX,
SDL_AXIS_LEFTY,
SDL_AXIS_RIGHTX,
SDL_AXIS_RIGHTY,
SDL_AXIS_TRIGGERLEFT,
SDL_AXIS_TRIGGERRIGHT,
SDL_AXIS_MAX,
};
enum JoyAxisRange {
NEGATIVE_HALF_AXIS = -1,
FULL_AXIS = 0,
POSITIVE_HALF_AXIS = 1
};
struct JoyEvent {
int type;
int index;
int value;
};
struct JoyDeviceMapping {
struct SDLExtendedJoyBind {
JoyType inputType;
union {
int button;
String uid;
String name;
Map<int, JoyEvent> buttons;
Map<int, JoyEvent> axis;
JoyEvent hat[HAT_MAX];
struct {
int axis;
JoyAxisRange range;
} axis;
struct {
int hat;
HatMask hat_mask;
} hat;
} input;
JoyType outputType;
union {
SDLJoyButton button;
struct {
SDLJoyAxis axis;
JoyAxisRange range;
} axis;
} output;
};
JoyEvent hat_map_default[HAT_MAX];
struct JoyDeviceMapping {
String uid;
String name;
Vector<SDLExtendedJoyBind> bindings;
};
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);
void _get_mapped_hat_events(const JoyDeviceMapping &mapping, int p_hat, JoyEvent r_events[HAT_MAX]);
SDLJoyButton _get_output_button(String output);
SDLJoyAxis _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);

View File

@ -42,18 +42,7 @@ 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_mappings[current_platform][guid] = line
platform_variables = {
"Linux": "#if X11_ENABLED",