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glfw: add Joystick.isPresent

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Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
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Stephen Gutekanst 2021-10-21 23:06:16 -07:00 • committed by Stephen Gutekanst
parent 8a72ea7fc3
commit b040116b4c
1 changed files with 22 additions and 21 deletions
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43
glfw/src/joystick.zig
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@ -1,4 +1,7 @@
//! Represents a Joystick or gamepad
//!
//! It can be manually crafted via e.g. `glfw.Joystick{.jid = glfw.Joystick.one}`, but more
//! typically you'll want to discover the joystick using `glfw.Joystick.setCallback`.
const std = @import("std");
@ -46,27 +49,25 @@ const GamepadState = extern struct {
axes: [6]f32,
};
// TODO(joystick)
// /// Returns whether the specified joystick is present.
// ///
// /// This function returns whether the specified joystick is present.
// ///
// /// There is no need to call this function before other functions that accept
// /// a joystick ID, as they all check for presence before performing any other
// /// work.
// ///
// /// @param[in] jid The [joystick](@ref joysticks) to query.
// /// @return `true` if the joystick is present, or `false` otherwise.
// ///
// /// Possible errors include glfw.Error.NotInitialized, glfw.Error.InvalidEnum and glfw.Error.PlatformError.
// ///
// /// @thread_safety This function must only be called from the main thread.
// ///
// /// see also: joystick
// /// Replaces `glfwGetJoystickParam`.
// ///
// /// @ingroup input
// GLFWAPI int glfwJoystickPresent(int jid);
/// Returns whether the specified joystick is present.
///
/// This function returns whether the specified joystick is present.
///
/// There is no need to call this function before other functions that accept a joystick ID, as
/// they all check for presence before performing any other work.
///
/// @return `true` if the joystick is present, or `false` otherwise.
///
/// Possible errors include glfw.Error.NotInitialized, glfw.Error.InvalidEnum and glfw.Error.PlatformError.
///
/// @thread_safety This function must only be called from the main thread.
///
/// see also: joystick
pub inline fn isPresent(self: Joystick) Error!bool {
const is_present = c.glfwJoystickPresent(self.jid);
try getError();
return is_present == c.GLFW_TRUE;
}
// TODO(joystick)
// /// Returns the values of all axes of the specified joystick.