/// <summary>
/// Fills a rectangular area of the map with a specified prefab.
/// </summary>
/// <param name="map">The reference to a <see cref="GridMap"/> type.</param>
/// <param name="width">The width of the rectangle.</param>
/// <param name="height">The height of the rectangle.</param>
/// <param name="prefab">The prefab to be drawn. Specify null to erase.</param>
/// <param name="layer">The layer where drawing will occur.</param>
/// <param name="left">The left position of the rectangle in grid co-ordinates.</param>
/// <param name="top">The top position of the rectangle in grid co-ordinates.</param>
/// <param name="autoCenterPrefab">Determines whether or not to automatically center the prefab within the grid cell.</param>
/// <param name="autoScalePrefab">If true the prefab will be automatically scaled to fit within the confines of the maps cell size.</param>
/// <param name="callback">Provides a draw callback function that if returns true will allow the prefab to be drawn. </param>
/// <remarks>If <see cref="callback"/> is null the check is ignored and drawing is allowed.</remarks>
public static void FillRectangle(this GridMap map, int layer, int left, int top, int width, int height, GameObject prefab,
bool autoCenterPrefab, bool autoScalePrefab, Func <int, int, int, GameObject, bool> callback)
{
if (prefab == null)
{
throw new ArgumentNullException("prefab");
}
var dimensions = new Rect(0, 0, map.Columns, map.Rows);
var firstRun = true;
if (!dimensions.Intersects(new Rect(left, top, width, height)))
{
return;
}
var material = prefab.renderer.sharedMaterial;
var getClone = new Func <GameObject>(() =>
{
var value = firstRun ? prefab : Helpers.PerformInstantiation(prefab);
// clear material references before assigning new material
value.renderer.material = null;
value.renderer.sharedMaterial = material;
return(value);
});
#if PERFORMANCE
var perf = PerformanceTesting <PerformanceID> .Instance;
perf.Start(PerformanceID.FillRectangleExtensionMethod);
#endif
for (var rowIndex = 0; rowIndex < height; rowIndex++)
{
if (rowIndex + top < 0 || rowIndex + top > map.Rows - 1)
{
continue;
}
for (var columnIndex = 0; columnIndex < width; columnIndex++)
{
if (columnIndex + left < 0 || columnIndex + left > map.Columns - 1)
{
continue;
}
#if PERFORMANCE
perf.Start(PerformanceID.FillRectangleExtensionMethod_Instantiation);
#endif
var clonedObject = getClone();
#if PERFORMANCE
perf.Stop(PerformanceID.FillRectangleExtensionMethod_Instantiation);
#endif
firstRun = false;
#if PERFORMANCE
perf.Start(PerformanceID.FillRectangleExtensionMethod_Callback);
#endif
if (callback != null && !callback(columnIndex + left, rowIndex + top, layer, clonedObject))
{
#if PERFORMANCE
perf.Stop(PerformanceID.FillRectangleExtensionMethod_Callback);
#endif
continue;
}
#if PERFORMANCE
perf.Stop(PerformanceID.FillRectangleExtensionMethod_Callback);
#endif
map.PositionPrefabOnMap(layer, columnIndex + left, rowIndex + top, clonedObject, autoCenterPrefab, autoScalePrefab);
}
}
#if PERFORMANCE
perf.Stop(PerformanceID.FillRectangleExtensionMethod);
#endif
}
/// <summary>
/// Draws a rectangular area of the map with a specified prefab.
/// </summary>
/// <param name="map">The reference to a <see cref="GridMap"/> type.</param>
/// <param name="width">The width of the rectangle.</param>
/// <param name="height">The height of the rectangle.</param>
/// <param name="prefab">The prefab to be drawn. Specify null to erase.</param>
/// <param name="layer">The layer where drawing will occur.</param>
/// <param name="left">The left position of the rectangle in grid co-ordinates.</param>
/// <param name="top">The top position of the rectangle in grid co-ordinates.</param>
/// <param name="autoCenterPrefab">Determines whether or not to automatically center the prefab within the grid cell.</param>
/// <param name="autoScalePrefab">If true the prefab will be automatically scaled to fit within the confines of the maps cell size.</param>
/// <param name="callback">Provides a draw callback function that if returns true will allow the prefab to be drawn. </param>
/// <remarks>If <see cref="callback"/> is null the check is ignored and drawing is allowed.</remarks>
public static void DrawRectangle(this GridMap map, int layer, int left, int top, int width, int height, GameObject prefab,
bool autoCenterPrefab, bool autoScalePrefab, Func <int, int, int, GameObject, bool> callback)
{
if (prefab == null)
{
throw new ArgumentNullException("prefab");
}
var dimensions = new Rect(0, 0, map.Columns, map.Rows);
var firstRun = true;
if (!dimensions.Intersects(new Rect(left, top, width, height)))
{
return;
}
var material = prefab.renderer.sharedMaterial;
var getClone = new Func <GameObject>(() =>
{
var value = firstRun ? prefab : Helpers.PerformInstantiation(prefab);
// clear material references before assigning new material
value.renderer.material = null;
value.renderer.sharedMaterial = material;
return(value);
});
for (var rowIndex = 0; rowIndex < height; rowIndex++)
{
if (rowIndex + top < 0 || rowIndex + top > map.Rows - 1)
{
continue;
}
if (left < 0 || left > map.Columns - 1 && left + width - 1 < 0 || left + width - 1 > map.Columns - 1)
{
continue;
}
// left side
var clonedObject = getClone();
firstRun = false;
if (callback != null && !callback(left, rowIndex + top, layer, clonedObject))
{
continue;
}
map.PositionPrefabOnMap(layer, left, rowIndex + top, clonedObject, autoCenterPrefab, autoScalePrefab);
if (left != left + width - 1)
{
// right side
clonedObject = getClone();
// clonedObject = firstRun ? prefab : Helpers.PerformInstantiation(prefab);
if (callback != null && !callback(left + width - 1, rowIndex + top, layer, clonedObject))
{
continue;
}
map.PositionPrefabOnMap(layer, left + width - 1, rowIndex + top, clonedObject, autoCenterPrefab, autoScalePrefab);
}
}
if (left == left + width - 1)
{
return;
}
for (var columnIndex = 1; columnIndex < width - 1; columnIndex++)
{
if (columnIndex + left < 0 || columnIndex + left > map.Columns - 1)
{
continue;
}
if (top < 0 || top > map.Rows - 1 && top + height - 1 < 0 || top + height - 1 > map.Rows - 1)
{
continue;
}
// top side
var clonedObject = getClone();
// var clonedObject = firstRun ? prefab : Helpers.PerformInstantiation(prefab);
if (callback != null && !callback(columnIndex + left, top, layer, clonedObject))
{
continue;
}
map.PositionPrefabOnMap(layer, columnIndex + left, top, clonedObject, autoCenterPrefab, autoScalePrefab);
if (top != top + height - 1)
{
// bottom side
clonedObject = getClone();
// clonedObject = firstRun ? prefab : Helpers.PerformInstantiation(prefab);
if (callback != null && !callback(columnIndex + left, top + height - 1, layer, clonedObject))
{
continue;
}
map.PositionPrefabOnMap(layer, columnIndex + left, top + height - 1, clonedObject, autoCenterPrefab, autoScalePrefab);
}
}
}