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#include "cWiremesh.h"
cWiremesh::cWiremesh() : position({0,0,0}), angle({0,0,0}) { }
cWiremesh::~cWiremesh() { }
void cWiremesh::addVector(sCoord3d _origin, sCoord3d _vector, char _char, uint16_t _color)
{
vectors.push_back(sVector{_origin, _vector, _char, _color});
}
void cWiremesh::rotate(sCoord3d _val)
{
angle = angle + _val;
}
void cWiremesh::reset()
{
vectors.clear();
}
void cWiremesh::write(cRender *_render)
{
if(!_render)
return;
sPos porigin = _render->getSize();
sCoord3d origin = {porigin.x / 2, porigin.y / 2, 0};
for(long unsigned int i = 0; i < vectors.size(); i++)
{
sCoord3d vorigin = applyRotation(vectors[i].origin, angle);
sCoord3d vdirection = applyRotation(vectors[i].direction, angle);
_render->drawLine(vectors[i].c,
translate(vorigin + position, origin),
translate(vorigin + vdirection + position, origin),
vectors[i].color);
}
}
sPos cWiremesh::translate(sCoord3d _coord, sCoord3d _origin)
{
sPos ret;
ret.x = (int)((float)_coord.x - ((float)_coord.z / (float)_DEPTH * (float)(_coord.x - _origin.x)));
ret.y = (int)((float)_coord.y - ((float)_coord.z / (float)_DEPTH * (float)(_coord.y - _origin.y)));
return ret;
}
sCoord3d cWiremesh::getPosition()
{
return position;
}
void cWiremesh::setPosition(int _x, int _y, int _z)
{
position = {_x, _y, _z};
}
void cWiremesh::setPosition(sCoord3d _pos)
{
position = _pos;
}
void cWiremesh::scale(float _scalar)
{
for(unsigned long int i = 0; i < vectors.size(); i++)
{
vectors[i].origin.x = (int)((float)vectors[i].origin.x * _scalar);
vectors[i].origin.y = (int)((float)vectors[i].origin.y * _scalar);
vectors[i].origin.z = (int)((float)vectors[i].origin.z * _scalar);
vectors[i].direction.x = (int)((float)vectors[i].direction.x * _scalar);
vectors[i].direction.y = (int)((float)vectors[i].direction.y * _scalar);
vectors[i].direction.z = (int)((float)vectors[i].direction.z * _scalar);
}
}
sCoord3d cWiremesh::applyRotation(sCoord3d _vector, sCoord3d _angle)
{
sCoord3d ret = _vector;
//Perform some algebra-magic
//couldn't be bothered to implement or use a matrix class
if(_angle.x)
{
float rads = (float)_angle.x * PI / 180.0;
ret.y = (int)(
(float)_vector.y * cos(rads) -
(float)_vector.z * sin(rads)
);
ret.z = (int)(
(float)_vector.y * sin(rads) +
(float)_vector.z * cos(rads)
);
}
if(_angle.y)
{
float rads = (float)_angle.y * PI / 180.0;
sCoord3d tmp = ret;
ret.x = (int)(
(float)tmp.x * cos(rads) +
(float)tmp.z * sin(rads)
);
ret.z = (int)(
- (float)tmp.x * sin(rads)
+ (float)tmp.z * cos(rads)
);
}
if(_angle.z)
{
float rads = (float)_angle.z * PI / 180.0;
sCoord3d tmp = ret;
ret.x = (int) (
(float)tmp.x * cos(rads) -
(float)tmp.y * sin(rads)
);
ret.y = (int) (
(float)tmp.x * sin(rads) +
(float)tmp.y * cos(rads)
);
}
return ret;
}
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