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glfw: add Joystick.getAxes

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Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
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Stephen Gutekanst 2021-10-21 23:13:16 -07:00 • committed by Stephen Gutekanst
parent b040116b4c
commit 269b4cacc8
1 changed files with 47 additions and 30 deletions
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77
glfw/src/joystick.zig
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@ -69,36 +69,33 @@ pub inline fn isPresent(self: Joystick) Error!bool {
return is_present == c.GLFW_TRUE; return is_present == c.GLFW_TRUE;
} }
// TODO(joystick) /// Returns the values of all axes of the specified joystick.
// /// Returns the values of all axes of the specified joystick. ///
// /// /// This function returns the values of all axes of the specified joystick. Each element in the
// /// This function returns the values of all axes of the specified joystick. /// array is a value between -1.0 and 1.0.
// /// Each element in the array is a value between -1.0 and 1.0. ///
// /// /// If the specified joystick is not present this function will return null but will not generate
// /// If the specified joystick is not present this function will return null /// an error. This can be used instead of first calling glfw.Joystick.isPresent.
// /// but will not generate an error. This can be used instead of first calling ///
// /// @ref glfwJoystickPresent. /// @return An array of axis values, or null if the joystick is not present.
// /// ///
// /// @param[in] jid The [joystick](@ref joysticks) to query. /// Possible errors include glfw.Error.NotInitialized, glfw.Error.InvalidEnum and glfw.Error.PlatformError.
// /// @param[out] count Where to store the number of axis values in the returned ///
// /// array. This is set to zero if the joystick is not present or an error /// @pointer_lifetime The returned array is allocated and freed by GLFW. You should not free it
// /// occurred. /// yourself. It is valid until the specified joystick is disconnected or the library is
// /// @return An array of axis values, or null if the joystick is not present or /// terminated.
// /// an error occurred. ///
// /// /// @thread_safety This function must only be called from the main thread.
// /// Possible errors include glfw.Error.NotInitialized, glfw.Error.InvalidEnum and glfw.Error.PlatformError. ///
// /// /// see also: joystick_axis
// /// @pointer_lifetime The returned array is allocated and freed by GLFW. You /// Replaces `glfwGetJoystickPos`.
// /// should not free it yourself. It is valid until the specified joystick is pub inline fn getAxes(self: Joystick) Error!?[]const f32 {
// /// disconnected or the library is terminated. var count: c_int = undefined;
// /// const axes = c.glfwGetJoystickAxes(self.jid, &count);
// /// @thread_safety This function must only be called from the main thread. try getError();
// /// if (axes == null) return null;
// /// see also: joystick_axis return axes[0..@intCast(usize, count)];
// /// Replaces `glfwGetJoystickPos`. }
// ///
// /// @ingroup input
// GLFWAPI const float* glfwGetJoystickAxes(int jid, int* count);
// TODO(joystick) // TODO(joystick)
// /// Returns the state of all buttons of the specified joystick. // /// Returns the state of all buttons of the specified joystick.
@ -442,6 +439,26 @@ pub inline fn getGamepadState(self: Joystick) Error!?GamepadState {
return if (success == c.GLFW_TRUE) state else null; return if (success == c.GLFW_TRUE) state else null;
} }
test "isPresent" {
const glfw = @import("main.zig");
try glfw.init();
defer glfw.terminate();
const joystick = glfw.Joystick{ .jid = glfw.Joystick.one };
_ = joystick.isPresent() catch |err| std.debug.print("failed to detect joystick, joysticks not supported? error={}\n", .{err});
}
test "getAxes" {
const glfw = @import("main.zig");
try glfw.init();
defer glfw.terminate();
const joystick = glfw.Joystick{ .jid = glfw.Joystick.one };
_ = joystick.getAxes() catch |err| std.debug.print("failed to get joystick axes, joysticks not supported? error={}\n", .{err});
}
test "setUserPointer_syntax" { test "setUserPointer_syntax" {
const glfw = @import("main.zig"); const glfw = @import("main.zig");
try glfw.init(); try glfw.init();