101 lines
3.4 KiB
Lua
101 lines
3.4 KiB
Lua
--[[
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Copyright (c) 2015, Robert 'Bobby' Zenz
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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--]]
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--- Util for various functions regarding textures.
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textureutil = {}
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--- Creates a texture like for an unwrapped cube, see the cube_texture.png file
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-- in the textures directory for an example.
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--
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-- @param textures The textures or tiles.
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-- @return The cube texture.
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function textureutil.cube(textures)
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local top = textureutil.get_name(textures[1])
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local bottom = textureutil.get_name(textures[2]) or top
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local front = textureutil.get_name(textures[3]) or top
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local back = textureutil.get_name(textures[4]) or top
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local left = textureutil.get_name(textures[5]) or top
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local right = textureutil.get_name(textures[6]) or top
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return "[combine:128x96"
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.. ":32,0=" .. top
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.. ":32,64=" .. bottom
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.. ":32,32=" .. front
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.. ":96,32=" .. back
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.. ":0,32=" .. left
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.. ":64,32=" .. right
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end
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--- Creates a dummy texture with the two given colors.
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--
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-- @param inner_color The color for the inner part, either a string with
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-- leading "#" or a Color.
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-- @param border_color The color for the border, either a string with
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-- leading "#" or a Color.
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-- @return The dummy texture (string).
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function textureutil.dummy(inner_color, border_color)
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if type(inner_color) == "table" then
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inner_color = "#" .. inner_color.hex
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end
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if type(border_color) == "table" then
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border_color = "#" .. border_color.hex
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end
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local inner = "(dummy_inner.png^[colorize:" .. inner_color .. ":240)"
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local border = "(dummy_border.png^[colorize:" .. border_color .. ":255)"
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return inner .. "^" .. border
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end
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--- Gets the name from the given tile.
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--
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-- @param tile The tile.
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-- @return The name of the tile.
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function textureutil.get_name(tile)
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if type(tile) == "table" then
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return tile.name
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else
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return tile
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end
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end
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--- Creates a tile with the given tileable parameters.
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--
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-- @param tile The name of the tile.
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-- @param horizontal If the tile is horizontally tileable.
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-- @param vertical If the tile is vertically tileable.
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-- @return A tile with tileable information.
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function textureutil.tileable(tile, horizontal, vertical)
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return {
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name = tile,
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tileable_horizontal = horizontal,
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tileable_vertical = vertical
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}
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end
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