src/camera.c@18de2af03531 (annotated)
src/camera.c
Thu, 28 Mar 2024 23:30:21 +0100
- author
- Mike Becker <universe@uap-core.de>
- date
- Thu, 28 Mar 2024 23:30:21 +0100
- changeset 45
- 18de2af03531
- parent 41
- df81d493716e
- child 47
- 44457f6cb0a2
- permissions
- -rw-r--r--
simplify how transforms work
| universe@37 | 1 | /* |
| universe@37 | 2 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. |
| universe@37 | 3 | * Copyright 2023 Mike Becker. All rights reserved. |
| universe@37 | 4 | * |
| universe@37 | 5 | * Redistribution and use in source and binary forms, with or without |
| universe@37 | 6 | * modification, are permitted provided that the following conditions are met: |
| universe@37 | 7 | * |
| universe@37 | 8 | * 1. Redistributions of source code must retain the above copyright |
| universe@37 | 9 | * notice, this list of conditions and the following disclaimer. |
| universe@37 | 10 | * |
| universe@37 | 11 | * 2. Redistributions in binary form must reproduce the above copyright |
| universe@37 | 12 | * notice, this list of conditions and the following disclaimer in the |
| universe@37 | 13 | * documentation and/or other materials provided with the distribution. |
| universe@37 | 14 | * |
| universe@37 | 15 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| universe@37 | 16 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| universe@37 | 17 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| universe@37 | 18 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
| universe@37 | 19 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| universe@37 | 20 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| universe@37 | 21 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| universe@37 | 22 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| universe@37 | 23 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| universe@37 | 24 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| universe@37 | 25 | * POSSIBILITY OF SUCH DAMAGE. |
| universe@37 | 26 | */ |
| universe@37 | 27 | |
| universe@37 | 28 | #include "ascension/camera.h" |
| universe@37 | 29 | |
| universe@37 | 30 | static void asc_camera_update_ortho(AscCamera *camera) { |
| universe@37 | 31 | float left = (float) camera->rect.pos.x; |
| universe@37 | 32 | float right = left + (float) camera->rect.size.width; |
| universe@37 | 33 | float top = (float) camera->rect.pos.y; |
| universe@37 | 34 | float bottom = top + (float) camera->rect.size.height; |
| universe@41 | 35 | asc_mat4f_ortho(camera->projection, left, right, bottom, top, -1, 1); |
| universe@37 | 36 | } |
| universe@37 | 37 | |
| universe@37 | 38 | void asc_camera_ortho(AscCamera *camera, asc_recti rect) { |
| universe@37 | 39 | asc_mat4f_unit(camera->view); |
| universe@37 | 40 | camera->update = asc_camera_update_ortho; |
| universe@37 | 41 | camera->rect = rect; |
| universe@37 | 42 | } |
| universe@37 | 43 | |
| universe@37 | 44 | void asc_camera_disable(AscCamera *camera) { |
| universe@37 | 45 | camera->update = NULL; |
| universe@37 | 46 | } |
