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comparison mde/types/Colour.d @ 63:66d555da083e

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Moved many modules/packages to better reflect usage.
author Diggory Hardy <diggory.hardy@gmail.com>
date Fri, 27 Jun 2008 18:35:33 +0100
parents mde/types/basic.d@9e1f05fbbcef
children b525ff28774b
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62:960206198cbd 63:66d555da083e
1 /* LICENSE BLOCK
2 Part of mde: a Modular D game-oriented Engine
3 Copyright © 2007-2008 Diggory Hardy
4
5 This program is free software: you can redistribute it and/or modify it under the terms
6 of the GNU General Public License as published by the Free Software Foundation, either
7 version 2 of the License, or (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
10 without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
11 See the GNU General Public License for more details.
12
13 You should have received a copy of the GNU General Public License
14 along with this program. If not, see <http://www.gnu.org/licenses/>. */
15
16 /** Contains a basic colour type. */
17 module mde.types.Colour;
18
19 /// Represent a colour using clamped floats
20 struct Colour {
21 /// Returns GL_ONE if total value is nearer white than black, else GL_ZERO.
22 uint nearestGLConst () {
23 return r+g+b >= 1.5f ? 1u : 0u;
24 }
25
26 float r,g,b; /// values
27
28 static {
29 /// Predefined colours
30 const Colour WHITE = { r:1f, g:1f, b:1f };
31 const Colour BLACK = { r:0f, g:0f, b:0f }; /// ditto
32
33 /// Construct from floats (doesn't clamp, but GL does when values are passed)
34 Colour opCall (float r, float g, float b) {
35 Colour c;
36 c.r = r;
37 c.g = g;
38 c.b = b;
39 return c;
40 }
41 /// Construct from ubytes
42 Colour opCall (ubyte r, ubyte g, ubyte b) {
43 Colour c;
44 c.r = cast(float) r / 255f;
45 c.g = cast(float) g / 255f;
46 c.b = cast(float) b / 255f;
47 return c;
48 }
49 }
50 }