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