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1 #ifndef XFORM_NODE_H_
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2 #define XFORM_NODE_H_
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3
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4 #include <vector>
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5 #include "vmath/vector.h"
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6 #include "vmath/quat.h"
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7 #include "vmath/matrix.h"
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8
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9
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10 struct anm_node;
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11 struct anm_track;
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12
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13 namespace goatgfx {
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14
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15 enum Interp { INTERP_STEP, INTERP_LINEAR, INTERP_CUBIC };
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16 enum Extrap { EXTRAP_EXTEND, EXTRAP_CLAMP, EXTRAP_REPEAT };
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17
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18 // NOTE: all time arguments are milliseconds
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19
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20 class XFormNode {
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21 private:
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22 struct anm_node *anm;
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23 std::vector<XFormNode*> children;
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24 XFormNode *parent;
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25
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26 Interp interp;
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27 Extrap extrap;
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28
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29 Matrix4x4 local_matrix;
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30 Matrix4x4 bone_matrix;
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31
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32 XFormNode(const XFormNode &node) {}
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33 XFormNode &operator =(const XFormNode &node) { return *this; }
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34
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35 public:
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36 XFormNode();
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37 virtual ~XFormNode();
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38
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39 virtual void set_name(const char *name);
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40 virtual const char *get_name() const;
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41
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42 virtual void set_interpolator(Interp in);
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43 virtual Interp get_interpolator() const;
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44 virtual void set_extrapolator(Extrap ex);
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45 virtual Extrap get_extrapolator() const;
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46
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47 virtual XFormNode *get_parent();
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48 virtual const XFormNode *get_parent() const;
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49
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50 // children management
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51 virtual void add_child(XFormNode *child);
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52 virtual void remove_child(XFormNode *child);
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53
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54 virtual int get_children_count() const;
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55 virtual XFormNode *get_child(int idx);
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56 virtual const XFormNode *get_child(int idx) const;
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57
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58
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59 virtual void use_animation(int idx);
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60 virtual void use_animation(const char *name);
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61 virtual void use_animation(int aidx, int bidx, float t);
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62 virtual void use_animation(const char *aname, const char *bname, float t);
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63
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64 virtual int get_active_animation_index(int which = 0) const;
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65 virtual float get_active_animation_mix() const;
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66
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67 virtual int get_animation_count() const;
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68
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69 // add a new empty animation slot (recursive)
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70 virtual void add_animation(const char *name = 0);
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71
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72 // set/get the current animation name (set is recursive)
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73 virtual void set_animation_name(const char *name);
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74 virtual const char *get_animation_name() const;
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75
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76
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77 virtual void set_position(const Vector3 &pos, long tmsec = 0);
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78 virtual Vector3 get_node_position(long tmsec = 0) const;
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79
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80 virtual void set_rotation(const Quaternion &quat, long tmsec = 0);
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81 virtual Quaternion get_node_rotation(long tmsec = 0) const;
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82
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83 virtual void set_scaling(const Vector3 &pos, long tmsec = 0);
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84 virtual Vector3 get_node_scaling(long tmsec = 0) const;
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85
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86 // these take hierarchy into account
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87 virtual Vector3 get_position(long tmsec = 0) const;
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88 virtual Quaternion get_rotation(long tmsec = 0) const;
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89 virtual Vector3 get_scaling(long tmsec = 0) const;
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90
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91 virtual void set_pivot(const Vector3 &pivot);
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92 virtual Vector3 get_pivot() const;
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93
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94 // the local matrix is concatenated with the regular node/anim matrix
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95 virtual void set_local_matrix(const Matrix4x4 &mat);
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96 virtual const Matrix4x4 &get_local_matrix() const;
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97
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98 // for bone nodes, the transformation of the bone in bind position
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99 virtual void set_bone_matrix(const Matrix4x4 &bmat);
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100 virtual const Matrix4x4 &get_bone_matrix() const;
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101
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102 // node transformation alone
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103 virtual void get_node_xform(long tmsec, Matrix4x4 *mat, Matrix4x4 *inv_mat = 0) const;
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104
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105 // node transformation taking hierarchy into account
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106 virtual void get_xform(long tmsec, Matrix4x4 *mat, Matrix4x4 *inv_mat = 0) const;
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107 };
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108
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109
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110 class Track {
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111 private:
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112 struct anm_track *trk;
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113 Interp interp;
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114 Extrap extrap;
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115
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116 public:
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117 Track();
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118 ~Track();
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119
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120 Track(const Track &trk);
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121 Track &operator =(const Track &trk);
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122
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123 void set_interpolator(Interp in);
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124 Interp get_interpolator() const;
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125 void set_extrapolator(Extrap ex);
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126 Extrap get_extrapolator() const;
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127
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128 void set_default(double def);
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129
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130 void set_value(float val, long tmsec = 0);
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131 float get_value(long tmsec = 0) const;
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132
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133 // the same as get_value
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134 float operator ()(long tmsec = 0) const;
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135 };
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136
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137 class Track3 {
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138 private:
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139 Track track[3];
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140
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141 public:
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142 void set_interpolator(Interp in);
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143 Interp get_interpolator() const;
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144 void set_extrapolator(Extrap ex);
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145 Extrap get_extrapolator() const;
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146
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147 void set_default(const Vector3 &def);
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148
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149 void set_value(const Vector3 &val, long tmsec = 0);
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150 Vector3 get_value(long tmsec = 0) const;
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151
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152 // the same as get_value
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153 Vector3 operator ()(long tmsec = 0) const;
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154 };
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155
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156 } // namespace goatgfx
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157
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158 #endif /* XFORM_NODE_H_ */
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