Mercurial > projects > myrrdin

annotate import/myrrdin/animatedsprite.d @ 6:510541745cd1

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turned myrrdin into package.
author fred@reichbier.de
date Sat, 19 Jul 2008 15:10:56 +0200
parents f4b89014ad39
children 806b3781f4e4
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1 /*
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2 myrrdin, a 2d tile engine
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3 Copyright (c) 2008 Friedrich Weber
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4
6
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5 Permission is hereby granted, free of charge, to any person obtaining a copy
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6 of this software and associated documentation files (the "Software"), to deal
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7 in the Software without restriction, including without limitation the rights
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8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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9 copies of the Software, and to permit persons to whom the Software is
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10 furnished to do so, subject to the following conditions:
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11
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12 The above copyright notice and this permission notice shall be included in
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13 all copies or substantial portions of the Software.
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14
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15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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21 THE SOFTWARE.
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22 */
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23
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24 module animatedsprite;
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25
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26 import dsfml.window.all;
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27 import dsfml.system.all;
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28 import dsfml.graphics.all;
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29
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30 class Frame {
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31 Image image;
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32 int length; // length in frames
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33
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34 this(Image image, int length) {
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35 this.image = image;
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36 this.length = length;
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37 }
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38 }
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39
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40 class Animation {
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41 public Frame[] frames;
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42 private int current_frame_idx;
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43 private Frame current_frame;
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44 private int frame_counter;
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45
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46 this() {
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47
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48 }
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49
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50 /* add a frame */
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51 void add_frame(Image image, int length) {
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52 this.frames ~= new Frame(image, length);
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53 }
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54
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55 void add_frame(Frame frame) {
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56 this.frames ~= frame;
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57 }
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58
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59 /* internal. you do not have to call it */
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60 void play() {
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61 this.current_frame = this.frames[0];
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62 this.current_frame_idx = 0;
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63 }
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64
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65 /* return the current image or null if the animation ended */
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66 Image get_image() {
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67 if(this.frame_counter >= this.current_frame.length) {
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68 this.frame_counter = 0;
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69 this.current_frame_idx++;
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70 if (this.frames.length <= this.current_frame_idx) {
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71 // animation stop
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72 return null;
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73 }
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74 this.current_frame = this.frames[this.current_frame_idx];
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75 }
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76 this.frame_counter++;
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77 return this.current_frame.image;
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78 }
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79 }
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80
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81 class AnimatedSprite : Sprite {
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82 private Animation current_animation = null;
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83 private bool is_loop = false;
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84
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85 /* play an animation now. */
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86 void play_animation(Animation animation, bool loop=false) {
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87 this.current_animation = animation;
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88 this.is_loop = loop;
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89 this.current_animation.play();
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90 }
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91
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92 bool is_playing() {
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93 return (this.current_animation !is null);
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94 }
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95
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96 /* update everything. Perfect for an animated sprite */
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97 void update() {
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98 if(this.current_animation) {
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99 Image img = this.current_animation.get_image();
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100 if(img) {
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101 this.setImage(img);
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102 }
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103 else if (this.is_loop) {
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104 this.current_animation.play(); // is a loop, play again
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105 } else {
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106 this.current_animation = null;
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107 }
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108 }
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109 }
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110 }