public void RemoveBindingOverride(InputBindingOverride bindingOverride)
{
var undoBindingOverride = bindingOverride;
undoBindingOverride.binding = null;
// Simply apply but with a null binding.
ApplyBindingOverride(undoBindingOverride);
}
// Find the binding tha tthe given override addresses.
// Return -1 if no corresponding binding is found.
private int FindBindingIndexForOverride(InputBindingOverride bindingOverride)
{
var group = bindingOverride.group;
var haveGroup = !string.IsNullOrEmpty(group);
if (m_BindingsCount == 1)
{
// Simple case where we have only a single binding on the action.
if (!haveGroup ||
string.Compare(m_Bindings[m_BindingsStartIndex].group, group,
StringComparison.InvariantCultureIgnoreCase) == 0)
{
return(0);
}
}
else if (m_BindingsCount > 1)
{
// Trickier case where we need to select from a set of bindings.
if (!haveGroup)
{
// Group is required to disambiguate.
throw new InvalidOperationException(
string.Format(
"Action {0} has multiple bindings; overriding binding requires the use of binding groups so the action knows which binding to override. Set 'group' property on InputBindingOverride.",
this));
}
int groupStringLength;
var indexInGroup = bindingOverride.GetIndexInGroup(out groupStringLength);
var currentIndexInGroup = 0;
for (var i = 0; i < m_BindingsCount; ++i)
{
if (string.Compare(m_Bindings[m_BindingsStartIndex + i].group, 0, group, 0, groupStringLength, true) == 0)
{
if (currentIndexInGroup == indexInGroup)
{
return(i);
}
++currentIndexInGroup;
}
}
}
return(-1);
}
// Apply the given override to the action.
//
// NOTE: Ignores the action name in the override.
// NOTE: Action must be disabled while applying overrides.
// NOTE: If there's already an override on the respective binding, replaces the override.
public void ApplyBindingOverride(InputBindingOverride bindingOverride)
{
if (enabled)
{
throw new InvalidOperationException(
string.Format("Cannot change overrides on action '{0}' while the action is enabled", this));
}
if (bindingOverride.binding == string.Empty)
{
bindingOverride.binding = null;
}
var bindingIndex = FindBindingIndexForOverride(bindingOverride);
if (bindingIndex == -1)
{
return;
}
m_Bindings[m_BindingsStartIndex + bindingIndex].overridePath = bindingOverride.binding;
}