Mercurial > fife-parpg

annotate engine/core/video/animation.h @ 2:e84dccee1bb7

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* add myself to authors * fix missing break in guimanager * when an event occurs over an guichan window the event is marked as consumedByGuichan, but the event is still distributed to all event listeners, those can check via event.isConsumedByGuichan...
author spq@33b003aa-7bff-0310-803a-e67f0ece8222
date Tue, 01 Jul 2008 17:43:35 +0000
parents 4a0efb7baf70
children 90005975cdbb
rev   line source
0
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1 /***************************************************************************
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2 * Copyright (C) 2005-2008 by the FIFE team *
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3 * http://www.fifengine.de *
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4 * This file is part of FIFE. *
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5 * *
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6 * FIFE is free software; you can redistribute it and/or modify *
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7 * it under the terms of the GNU General Public License as published by *
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8 * the Free Software Foundation; either version 2 of the License, or *
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9 * (at your option) any later version. *
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10 * *
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11 * This program is distributed in the hope that it will be useful, *
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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14 * GNU General Public License for more details. *
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15 * *
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16 * You should have received a copy of the GNU General Public License *
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17 * along with this program; if not, write to the *
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18 * Free Software Foundation, Inc., *
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19 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA *
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20 ***************************************************************************/
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21
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22 #ifndef FIFE_VIDEO_ANIMATION_H
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23 #define FIFE_VIDEO_ANIMATION_H
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24
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25 // Standard C++ library includes
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26 #include <cassert>
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27 #include <map>
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28 #include <vector>
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29
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30 // Platform specific includes
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31 #include "util/base/fife_stdint.h"
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32
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33 // 3rd party library includes
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34
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35 // FIFE includes
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36 // These includes are split up in two parts, separated by one empty line
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37 // First block: files included from the FIFE root src directory
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38 // Second block: files included from the same folder
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39 #include "util/base/resourceclass.h"
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40
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41 namespace FIFE {
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42
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43 class Image;
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44
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45 /** Animation.
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46 *
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47 * A container of Images describing an animation. Animation itself does
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48 * not take care of animating the images. Instead it contains images
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49 * having associated timestamps. It is the responsibility of the
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50 * animation user to query frames based on current timestamp and show
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51 * returned images on screen.
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52 */
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53 class Animation : public ResourceClass {
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54 public:
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55 /** Constructor.
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56 */
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57 explicit Animation();
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58
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59 /** Destructor. Decreases the reference count of all referred images.
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60 */
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61 ~Animation();
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62
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63 //TODO: fill in these stubs! Note, m_location is not properly initialized.
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64 virtual const ResourceLocation& getResourceLocation() { return m_location; }
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65
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66 virtual void setResourceLocation(const ResourceLocation& location) { }
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67 virtual void setResourceFile(const std::string& filename) { }
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68
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69 /** Adds new frame into animation
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70 * Frames must be added starting from first frame. Increases the reference
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71 * count of the given image.
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72 * @param image Pointer to Image. Does not transfer the ownership
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73 * @param duration Duration for given frame in the animation
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74 */
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75 void addFrame(Image* image, unsigned int duration);
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76
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77 /** Get the frame index that matches given timestamp. In case there is no exact match,
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78 * correct frame is calculated. E.g. if there are frames for timestamps 50 and 100
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79 * and frame for 75 is asked, frame associated with value 50 is given back.
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80 * In case the timestamp is past the sequence, negative value is returned
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81 * @see addFrame
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82 */
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83 int getFrameIndex(unsigned int timestamp);
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84
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85 /** Gets the frame that matches the given index. If no matches found, returns NULL
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86 */
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87 Image* getFrame(int index);
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88
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89 /** Gets the frame that matches the given timestamp.
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90 */
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91 Image* getFrameByTimestamp(unsigned int timestamp);
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92
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93 /** Gets the frame duration for given (indexed) frame. Returns negative value in case
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94 * of incorrect index
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95 */
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96 int getFrameDuration(int index);
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97
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98 /** Get the number of frames
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99 */
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100 unsigned int getNumFrames() const;
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101
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102 /** Sets the action frame. Action frame is the frame when the related
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103 * action actually happens. E.g. in case of punch animation, action frame is
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104 * the frame when punch hits the target. In case there is no associated
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105 * action frame, value is negative
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106 * @param num index of the action frame.
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107 */
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108 void setActionFrame(int num) { m_action_frame = num; }
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109
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110 /** Gets the action frame.
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111 * @see setActionFrame
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112 */
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113 int getActionFrame() { return m_action_frame; }
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114
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115 /** Animation direction tells how this animation is associated
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116 * with movement when played starting from frame 0
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117 * E.g. in walking animation there should be direction assigned so
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118 * that engine can choose the correct animation when characters are
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119 * moved around the map area
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120 * @param direction direction to set
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121 */
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122 void setDirection(unsigned int direction);
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123
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124 /** Gets the animation direction
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125 * @see setDirection
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126 * @return direction for this animation
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127 */
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128 unsigned int getDirection() { return m_direction; }
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129
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130 /** Gets the total duration for the whole animation
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131 */
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132 int getDuration() { return m_animation_endtime; }
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133
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134 private:
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135 /** Contains information about one animation frame (duration + frame index + frame pointer)
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136 */
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137 struct FrameInfo {
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138 unsigned int index;
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139 unsigned int duration;
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140 Image* img;
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141 };
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142
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143 ResourceLocation m_location;
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144
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145 /** Checks for animation frame index overflows
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146 */
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147 bool isValidIndex(int index);
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148
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149 // Map of timestamp + associated frame
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150 std::map<unsigned int, FrameInfo> m_framemap;
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151 // vector of frames for fast indexed access
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152 std::vector<FrameInfo> m_frames;
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153 // Action frame of the Animation.
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154 int m_action_frame;
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155 // time when animation ends (zero based)
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156 int m_animation_endtime;
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157 // Direction for this animation
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158 unsigned int m_direction;
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159
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160 };
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161 }
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162
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163 #endif
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164 /* vim: set noexpandtab: set shiftwidth=2: set tabstop=2: */