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DefineClass.XRampBrush = {
__parents = { "XEditorBrushTool" },
properties = {
editor = "number", slider = true, persisted_setting = true, auto_select_all = true,
{ id = "Falloff", default = 100, scale = "%", min = 0, max = 250 },
},
ToolSection = "Height",
ToolTitle = "Ramp",
Description = {
"Creates an inclined plane between two points.",
"(<style GedHighlight>hold Shift</style> to align to world directions)",
},
ActionSortKey = "14",
ActionIcon = "CommonAssets/UI/Editor/Tools/slope.tga",
ActionShortcut = "/",
old_bbox = false,
ramp_grid = false,
mask_grid = false,
}
function XRampBrush:Init()
local w, h = terrain.HeightMapSize()
self.ramp_grid = NewComputeGrid(w, h, "F")
self.mask_grid = NewComputeGrid(w, h, "F")
end
function XRampBrush:Done()
editor.ClearOriginalHeightGrid()
self.ramp_grid:free()
self.mask_grid:free()
end
function XRampBrush:StartDraw(pt)
XEditorUndo:BeginOp{ height = true, name = "Changed height" }
editor.StoreOriginalHeightGrid(true) -- true = use for GetTerrainCursor
end
function XRampBrush:Draw(pt1, pt2)
pt1 = self.first_pos
if pt1 == pt2 then return end
self.mask_grid:clear()
self.ramp_grid:clear()
local h1 = editor.GetOriginalHeight(pt1) / const.TerrainHeightScale
local h2 = editor.GetOriginalHeight(pt2) / const.TerrainHeightScale
local inner_radius, outer_radius = self:GetCursorRadius()
local bbox = editor.DrawMaskSegment(self.mask_grid, pt1, pt2, inner_radius, outer_radius, "max")
editor.DrawMaskSegment(self.ramp_grid, pt1, pt2, outer_radius, outer_radius, "set", h1, h2)
local extended_box = AddRects(self.old_bbox or bbox, bbox)
editor.SetHeightWithMask(self.ramp_grid, self.mask_grid, extended_box)
Msg("EditorHeightChanged", false, extended_box)
self.old_bbox = bbox
end
function XRampBrush:EndDraw(pt1, pt2)
local _, outer_radius = self:GetCursorRadius()
local bbox = editor.GetSegmentBoundingBox(pt1, pt2, outer_radius, self:IsCursorSquare())
local extended_box = AddRects(self.old_bbox or bbox, bbox)
self.old_bbox = nil
Msg("EditorHeightChanged", true, extended_box)
XEditorUndo:EndOp(nil, extended_box)
end
function XRampBrush:GetCursorRadius()
local inner_size = self:GetSize() * 100 / (100 + 2 * self:GetFalloff())
return inner_size / 2, self:GetSize() / 2
end
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