// This building method will firstly try to join N loop tiles and a left and right tile,
// so that the total width is close but smaller than the actual size.
// If the rest size is equal to or greater than 'minimumValidLoopTile', we will put another loop tile.
protected override float BuildGraphics(TerrainData data, TerrainStyle style)
{
var ground_style = style.groundStyle;
if (!ground_style.isValid)
{
Debug.LogError("GroundStyle is not valid!");
return(0);
}
float loop_ratio = (data.region.width - ground_style.edgeSize) / ground_style.loopSize;
int loop_cnt = (int)Mathf.Ceil(loop_ratio - ground_style.minimumValidLoopTile);
float accumulate_size = 0;
tiles_.Clear();
tiles_.Add(CreateGroundTile(ground_style.leftTile, ground_style, accumulate_size));
accumulate_size += ground_style.leftEdgeSize;
for (int i = 0; i < loop_cnt; i++)
{
tiles_.Add(CreateGroundTile(ground_style.RandomSelectLoopTile(), ground_style, accumulate_size));
accumulate_size += ground_style.loopSize;
}
tiles_.Add(CreateGroundTile(ground_style.rightTile, ground_style, accumulate_size));
accumulate_size += ground_style.rightEdgeSize;
return(accumulate_size);
}
public void BuildSelf(TerrainData data, TerrainStyle style, Transform parent_tranform)
{
if (is_dirty)
{
Cleanup();
}
is_dirty = true;
transform.parent = parent_tranform;
transform.localScale = Vector3.one;
this.data = data;
Init();
float real_width = BuildGraphics(data, style);
collider = BuildCollider(data, real_width);
bound = new Rect(
collider.bounds.center.x - collider.bounds.size.x * 0.5f,
collider.bounds.center.y - collider.bounds.size.y * 0.5f,
collider.bounds.size.x, collider.bounds.size.y);
}
/// <summary> /// The return value is the real size generated by this method. /// </summary> protected abstract float BuildGraphics(TerrainData data, TerrainStyle style);