src/ascension/sprite.h

Sun, 13 Jul 2025 15:09:04 +0200

author
Mike Becker <universe@uap-core.de>
date
Sun, 13 Jul 2025 15:09:04 +0200
changeset 204
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parent 196
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permissions
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rework how transformations work to allow rotations around a point of origin

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1 /*
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2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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3 * Copyright 2025 Mike Becker. All rights reserved.
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4 *
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5 * Redistribution and use in source and binary forms, with or without
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6 * modification, are permitted provided that the following conditions are met:
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7 *
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8 * 1. Redistributions of source code must retain the above copyright
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9 * notice, this list of conditions and the following disclaimer.
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10 *
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11 * 2. Redistributions in binary form must reproduce the above copyright
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12 * notice, this list of conditions and the following disclaimer in the
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13 * documentation and/or other materials provided with the distribution.
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14 *
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15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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25 * POSSIBILITY OF SUCH DAMAGE.
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26 */
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27
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28 #ifndef ASCENSION_SPRITE_H
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29 #define ASCENSION_SPRITE_H
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30
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31 #include "scene_node.h"
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32 #include "mesh.h"
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33 #include "texture.h"
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34 #include "camera.h"
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35
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36 typedef struct asc_sprite_s {
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37 AscSceneNode base;
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38 AscMesh mesh;
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39 unsigned width;
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40 unsigned height;
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41 AscTexture *texture;
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42 enum asc_texture_scale_mode texture_scale_mode;
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43 asc_vec2f texture_scale;
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44 } AscSprite;
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45
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46 struct asc_sprite_create_args {
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47 const char *name;
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48 AscTexture *texture;
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49 int x;
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50 int y;
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51 int origin_x;
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52 int origin_y;
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53 /**
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54 * Optional width for re-scaling.
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55 * If zero, the texture width will be used.
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56 */
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57 unsigned width;
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58 /**
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59 * Optional height for re-scaling.
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60 * If zero, the texture height will be used.
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61 */
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62 unsigned height;
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63 enum asc_texture_scale_mode texture_scale_mode;
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64 float texture_scale_x;
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65 float texture_scale_y;
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66 bool opaque;
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67 };
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69 AscSceneNode *asc_sprite_create(struct asc_sprite_create_args args);
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71 #define asc_sprite(...) \
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72 asc_sprite_create((struct asc_sprite_create_args) { __VA_ARGS__ })
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73
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74 void asc_sprite_set_size(AscSprite *sprite, asc_vec2u size);
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75
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76 #endif //ASCENSION_SPRITE_H

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