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Funkin/source/funkin/ui/debug/charting/commands/SwitchDifficultyCommand.hx
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Haxe

package funkin.ui.debug.charting.commands;
#if FEATURE_CHART_EDITOR
/**
* Switch the current difficulty (and possibly variation) of the chart in the chart editor.
*/
@:nullSafety
@:access(funkin.ui.debug.charting.ChartEditorState)
class SwitchDifficultyCommand implements ChartEditorCommand
{
var prevDifficulty:String;
var newDifficulty:String;
var prevVariation:String;
var newVariation:String;
public function new(prevDifficulty:String, newDifficulty:String, prevVariation:String, newVariation:String)
{
this.prevDifficulty = prevDifficulty;
this.newDifficulty = newDifficulty;
this.prevVariation = prevVariation;
this.newVariation = newVariation;
}
/**
* Perform the difficulty switch.
* @param state The ChartEditorState to perform the action on.
*/
public function execute(state:ChartEditorState):Void
{
state.selectedVariation = newVariation != null ? newVariation : prevVariation;
state.selectedDifficulty = newDifficulty != null ? newDifficulty : prevDifficulty;
markDirty(state);
}
/**
* Reverse the difficulty switch.
* @param state The ChartEditorState to perform the action on.
*/
public function undo(state:ChartEditorState):Void
{
state.selectedVariation = prevVariation != null ? prevVariation : newVariation;
state.selectedDifficulty = prevDifficulty != null ? prevDifficulty : newDifficulty;
markDirty(state);
}
function markDirty(state:ChartEditorState):Void
{
state.refreshToolbox(ChartEditorState.CHART_EDITOR_TOOLBOX_METADATA_LAYOUT);
state.noteDisplayDirty = true;
state.notePreviewDirty = true;
}
/**
* @param state The ChartEditorState to perform the action on.
* @return Whether or not this instance of the command should be added to the history.
* If the command didn't actually change anything, return `false` to prevent polluting the history.
*/
public function shouldAddToHistory(state:ChartEditorState):Bool
{
// Add to the history if we actually performed an action.
return (prevVariation != newVariation || prevDifficulty != newDifficulty);
}
public function toString():String
{
return 'Switch Difficulty to $newDifficulty ($newVariation)';
}
}
#end