Mercurial > molko
annotate libmlk-core/mlk/core/maths.c @ 455:c4f31658104d
core: maths -> mlk_maths
author | David Demelier <markand@malikania.fr> |
---|---|
date | Sat, 18 Feb 2023 20:59:48 +0100 |
parents | 773a082f0b91 |
children | 95792046d3d2 |
rev | line source |
---|---|
106
ed1a6bb02a78
inventory_dialog: use a small circle as test
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
1 /* |
ed1a6bb02a78
inventory_dialog: use a small circle as test
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
2 * maths.c -- basic maths |
ed1a6bb02a78
inventory_dialog: use a small circle as test
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
3 * |
445
773a082f0b91
misc: update copyright years
David Demelier <markand@malikania.fr>
parents:
431
diff
changeset
|
4 * Copyright (c) 2020-2023 David Demelier <markand@malikania.fr> |
106
ed1a6bb02a78
inventory_dialog: use a small circle as test
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
5 * |
ed1a6bb02a78
inventory_dialog: use a small circle as test
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
6 * Permission to use, copy, modify, and/or distribute this software for any |
ed1a6bb02a78
inventory_dialog: use a small circle as test
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
7 * purpose with or without fee is hereby granted, provided that the above |
ed1a6bb02a78
inventory_dialog: use a small circle as test
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
8 * copyright notice and this permission notice appear in all copies. |
ed1a6bb02a78
inventory_dialog: use a small circle as test
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
9 * |
ed1a6bb02a78
inventory_dialog: use a small circle as test
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
ed1a6bb02a78
inventory_dialog: use a small circle as test
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
ed1a6bb02a78
inventory_dialog: use a small circle as test
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
ed1a6bb02a78
inventory_dialog: use a small circle as test
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
ed1a6bb02a78
inventory_dialog: use a small circle as test
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
ed1a6bb02a78
inventory_dialog: use a small circle as test
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
ed1a6bb02a78
inventory_dialog: use a small circle as test
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
ed1a6bb02a78
inventory_dialog: use a small circle as test
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
17 */ |
ed1a6bb02a78
inventory_dialog: use a small circle as test
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
18 |
ed1a6bb02a78
inventory_dialog: use a small circle as test
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
19 #include "maths.h" |
ed1a6bb02a78
inventory_dialog: use a small circle as test
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
20 |
298
196264679079
misc: remove usage of bool
David Demelier <markand@malikania.fr>
parents:
288
diff
changeset
|
21 int |
455
c4f31658104d
core: maths -> mlk_maths
David Demelier <markand@malikania.fr>
parents:
445
diff
changeset
|
22 mlk_maths_is_boxed(int x, int y, unsigned int w, unsigned int h, int px, int py) |
106
ed1a6bb02a78
inventory_dialog: use a small circle as test
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
23 { |
250
8ef7fb7f14ad
rpg: add support for collisions with actions
David Demelier <markand@malikania.fr>
parents:
243
diff
changeset
|
24 return px > x && |
8ef7fb7f14ad
rpg: add support for collisions with actions
David Demelier <markand@malikania.fr>
parents:
243
diff
changeset
|
25 py > y && |
8ef7fb7f14ad
rpg: add support for collisions with actions
David Demelier <markand@malikania.fr>
parents:
243
diff
changeset
|
26 px < x + (int)w && |
8ef7fb7f14ad
rpg: add support for collisions with actions
David Demelier <markand@malikania.fr>
parents:
243
diff
changeset
|
27 py < y + (int)h; |
106
ed1a6bb02a78
inventory_dialog: use a small circle as test
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
28 } |
288
cc0f02ae9005
core: add maths_scale function
David Demelier <markand@malikania.fr>
parents:
250
diff
changeset
|
29 |
cc0f02ae9005
core: add maths_scale function
David Demelier <markand@malikania.fr>
parents:
250
diff
changeset
|
30 float |
455
c4f31658104d
core: maths -> mlk_maths
David Demelier <markand@malikania.fr>
parents:
445
diff
changeset
|
31 mlk_maths_scale(float in, float old_min, float old_max, float new_min, float new_max) |
288
cc0f02ae9005
core: add maths_scale function
David Demelier <markand@malikania.fr>
parents:
250
diff
changeset
|
32 { |
cc0f02ae9005
core: add maths_scale function
David Demelier <markand@malikania.fr>
parents:
250
diff
changeset
|
33 return (in / ((old_max - old_min) / (new_max - new_min))) + new_min; |
cc0f02ae9005
core: add maths_scale function
David Demelier <markand@malikania.fr>
parents:
250
diff
changeset
|
34 } |