1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/snode.cc	Sat Apr 12 23:37:55 2014 +0300
     1.3 @@ -0,0 +1,193 @@
     1.4 +#include <string.h>
     1.5 +#include <assert.h>
     1.6 +#include "snode.h"
     1.7 +
     1.8 +
     1.9 +SceneNode::SceneNode()
    1.10 +{
    1.11 +	parent = 0;
    1.12 +	name = 0;
    1.13 +	type = NODE_NULL;
    1.14 +	scale = Vector3(1, 1, 1);
    1.15 +	invalidate();
    1.16 +}
    1.17 +
    1.18 +SceneNode::~SceneNode()
    1.19 +{
    1.20 +	delete [] name;
    1.21 +}
    1.22 +
    1.23 +void SceneNode::set_name(const char *name)
    1.24 +{
    1.25 +	this->name = new char[strlen(name) + 1];
    1.26 +	strcpy(this->name, name);
    1.27 +}
    1.28 +
    1.29 +const char *SceneNode::get_name() const
    1.30 +{
    1.31 +	return name ? name : "<unnamed>";
    1.32 +}
    1.33 +
    1.34 +NodeType SceneNode::get_type() const
    1.35 +{
    1.36 +	return type;
    1.37 +}
    1.38 +
    1.39 +SceneNode *SceneNode::get_parent()
    1.40 +{
    1.41 +	return parent;
    1.42 +}
    1.43 +
    1.44 +const SceneNode *SceneNode::get_parent() const
    1.45 +{
    1.46 +	return parent;
    1.47 +}
    1.48 +
    1.49 +void SceneNode::add_child(SceneNode *child)
    1.50 +{
    1.51 +	children.push_back(child);
    1.52 +	child->parent = this;
    1.53 +	invalidate();
    1.54 +}
    1.55 +
    1.56 +void SceneNode::remove_child(SceneNode *child)
    1.57 +{
    1.58 +	// TODO
    1.59 +	invalidate();
    1.60 +}
    1.61 +
    1.62 +int SceneNode::get_children_count() const
    1.63 +{
    1.64 +	return (int)children.size();
    1.65 +}
    1.66 +
    1.67 +SceneNode *SceneNode::get_child(int idx)
    1.68 +{
    1.69 +	if(idx >= 0 && idx < get_children_count()) {
    1.70 +		return children[idx];
    1.71 +	}
    1.72 +	return 0;
    1.73 +}
    1.74 +
    1.75 +const SceneNode *SceneNode::get_child(int idx) const
    1.76 +{
    1.77 +	if(idx >= 0 && idx < get_children_count()) {
    1.78 +		return children[idx];
    1.79 +	}
    1.80 +	return 0;
    1.81 +}
    1.82 +
    1.83 +
    1.84 +
    1.85 +void SceneNode::set_position(const Vector3 &pos)
    1.86 +{
    1.87 +	this->pos = pos;
    1.88 +	invalidate();
    1.89 +}
    1.90 +
    1.91 +Vector3 SceneNode::get_node_position() const
    1.92 +{
    1.93 +	return pos;
    1.94 +}
    1.95 +
    1.96 +void SceneNode::set_rotation(const Quat &quat)
    1.97 +{
    1.98 +	rot = quat;
    1.99 +	invalidate();
   1.100 +}
   1.101 +
   1.102 +Quat SceneNode::get_node_rotation() const
   1.103 +{
   1.104 +	return rot;
   1.105 +}
   1.106 +
   1.107 +void SceneNode::set_scaling(const Vector3 &scale)
   1.108 +{
   1.109 +	this->scale = scale;
   1.110 +	invalidate();
   1.111 +}
   1.112 +
   1.113 +Vector3 SceneNode::get_node_scaling() const
   1.114 +{
   1.115 +	return scale;
   1.116 +}
   1.117 +
   1.118 +// these take hierarchy into account
   1.119 +Vector3 SceneNode::get_position() const
   1.120 +{
   1.121 +	return transform(get_matrix(), Vector3(0, 0, 0));
   1.122 +}
   1.123 +
   1.124 +Quat SceneNode::get_rotation() const
   1.125 +{
   1.126 +	if(parent) {
   1.127 +		return parent->get_rotation() * rot;
   1.128 +	}
   1.129 +	return rot;
   1.130 +}
   1.131 +
   1.132 +Vector3 SceneNode::get_scaling() const
   1.133 +{
   1.134 +	if(parent) {
   1.135 +		return parent->get_scaling() * scale;
   1.136 +	}
   1.137 +	return scale;
   1.138 +}
   1.139 +
   1.140 +void SceneNode::set_pivot(const Vector3 &pivot)
   1.141 +{
   1.142 +	this->pivot = pivot;
   1.143 +	invalidate();
   1.144 +}
   1.145 +
   1.146 +Vector3 SceneNode::get_pivot() const
   1.147 +{
   1.148 +	return pivot;
   1.149 +}
   1.150 +
   1.151 +const Matrix4x4 &SceneNode::get_matrix() const
   1.152 +{
   1.153 +	calc_matrix();
   1.154 +	return xform;
   1.155 +}
   1.156 +
   1.157 +const Matrix4x4 &SceneNode::get_inv_matrix() const
   1.158 +{
   1.159 +	calc_inv_matrix();
   1.160 +	return inv_xform;
   1.161 +}
   1.162 +
   1.163 +void SceneNode::invalidate() const
   1.164 +{
   1.165 +	xform_valid = inv_xform_valid = false;
   1.166 +}
   1.167 +
   1.168 +// TODO: hierarchy
   1.169 +void SceneNode::calc_matrix() const
   1.170 +{
   1.171 +	xform.set_identity();
   1.172 +	xform.translate(pivot.x, pivot.y, pivot.z);
   1.173 +	xform = xform * rot.get_matrix();
   1.174 +	xform.translate(pos.x, pos.y, pos.z);
   1.175 +	xform.scale(scale.x, scale.y, scale.z);
   1.176 +	xform.translate(-pivot.x, -pivot.y, -pivot.z);
   1.177 +
   1.178 +	xform_valid = true;
   1.179 +}
   1.180 +
   1.181 +void SceneNode::calc_inv_matrix() const
   1.182 +{
   1.183 +	calc_matrix();
   1.184 +
   1.185 +	inv_xform = xform.inverse();
   1.186 +	inv_xform_valid = true;
   1.187 +}
   1.188 +
   1.189 +void SceneNode::draw() const
   1.190 +{
   1.191 +}
   1.192 +
   1.193 +bool SceneNode::intersect(const Ray &ray, float *dist) const
   1.194 +{
   1.195 +	return false;
   1.196 +}