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#include "cad.h"
struct box {
struct component bottom_left;
struct component bottom_right;
struct component top_right;
struct component top_left;
struct component bottom;
struct component right;
struct component top;
struct component left;
};
void a_box(struct box *box, struct topology *topo, struct constraints *constr) {
assert(box != NULL);
*box = (struct box){
.bottom_left = {.type = COM_POINT},
.bottom_right = {.type = COM_POINT},
.top_right = {.type = COM_POINT},
.top_left = {.type = COM_POINT},
.bottom = {.type = COM_LINE},
.right = {.type = COM_LINE},
.top = {.type = COM_LINE},
.left = {.type = COM_LINE},
};
if(topo != NULL) {
add_fragment(topo, (struct topology_elem[]){
TOPO_MOVETO(&box->bottom_left),
TOPO_LINETO(&box->bottom_right),
TOPO_LINETO(&box->top_right),
TOPO_LINETO(&box->top_left),
TOPO_LINETO(&box->bottom_left),
TOPO_END(),
});
}
if(constr != NULL) {
add_constraint(constr, (struct constraint[]){
POINT_ON_LINE(&box->bottom_left, &box->bottom),
POINT_ON_LINE(&box->bottom_right, &box->bottom),
POINT_ON_LINE(&box->bottom_right, &box->right),
POINT_ON_LINE(&box->top_right, &box->right),
POINT_ON_LINE(&box->top_right, &box->top),
POINT_ON_LINE(&box->top_left, &box->top),
POINT_ON_LINE(&box->bottom_left, &box->left),
POINT_ON_LINE(&box->top_left, &box->left),
LL_ANGLE(&box->left, &box->bottom, DEG(90)),
LL_ANGLE(&box->right, &box->top, DEG(90)),
LL_ANGLE(&box->top, &box->left, DEG(90)),
CEND(),
});
}
}
void draw_from_constraints(struct constraints *c, struct topology *t, struct canvas *cv) {
struct drawing drawing = {};
bool rc = solve_constraints(c, &drawing);
assert(rc);
// Copy over all the parameter values to a new array
// @PERF: Maybe we should just store them in a separate array to start with
double *params = malloc(sizeof(double) * (c->length));
for(size_t i = 0; i < c->length; i++) {
params[i] = c->elements[i].v;
}
place_points(&drawing, params);
free(params);
begin_drawing(cv);
draw_topology(cv, t);
draw_constraints(cv, c);
end_drawing(cv);
free_drawing(&drawing);
}
int main(int argc, char *argv[]) {
struct constraints constraints = {};
struct topology topo = {};
struct box box1;
a_box(&box1, &topo, &constraints);
struct box box2;
a_box(&box2, &topo, &constraints);
struct box box3;
a_box(&box3, &topo, &constraints);
add_constraint(&constraints, (struct constraint[]){
PP_DISTANCE(&box1.bottom_left, &box1.bottom_right, 10),
PP_DISTANCE(&box1.bottom_right, &box1.top_right, 10),
PP_SAME(&box2.bottom_left, &box1.top_left),
PP_DISTANCE(&box2.bottom_left, &box2.bottom_right, 10),
PP_DISTANCE(&box2.bottom_right, &box2.top_right, 10),
LL_ANGLE(&box2.bottom, &box1.bottom, DEG(-60)),
PP_SAME(&box3.bottom_left, &box2.top_left),
PP_DISTANCE(&box3.bottom_right, &box3.top_right, 10),
PP_DISTANCE(&box3.bottom_left, &box3.bottom_right, 7),
LL_ANGLE(&box3.bottom, &box2.bottom, DEG(-20)),
CEND(),
});
struct canvas canvas = {
.state = CANVAS_INIT,
.f = stdout,
};
draw_from_constraints(&constraints, &topo, &canvas);
free_constraints(&constraints);
free_topology(&topo);
}
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