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#pragma once
#include "cad/construction.h"
#define SEARCH_DEPTH 16
enum component_type {
COM_POINT,
COM_LINE,
};
struct component {
enum component_type type;
struct element *e;
bool show_when_placed;
double min;
double max;
bool min_max_init;
bool drawn;
};
struct alias {
struct component *alias;
struct component *target;
};
struct constraints {
struct constraint *elements;
size_t length;
size_t capacity;
struct alias aliases[16];
size_t aliases_num;
};
extern char *constraint_type_name[];
enum constraint_type {
CT_POINT_POINT_DISTANCE,
CT_POINT_LINE_DISTANCE,
CT_LINE_LINE_ANGLE,
CT_END,
};
#define PP_DISTANCE(C1, C2, D) \
{ \
.type = CT_POINT_POINT_DISTANCE, \
.v = D, \
.c1 = C1, \
.c2 = C2, \
}
#define PP_ALIAS(C1, C2) \
PP_DISTANCE(C1, C2, 0)
#define PP_SAME(C1, C2) \
PP_DISTANCE(C1, C2, 0)
#define PL_DISTANCE(C1, C2, D) \
{ \
.type = CT_POINT_LINE_DISTANCE, \
.v = D, \
.c1 = C1, \
.c2 = C2, \
}
#define POINT_ON_LINE(C1, C2) \
PL_DISTANCE(C1, C2, 0)
#define LL_ANGLE(C1, C2, D) \
{ \
.type = CT_LINE_LINE_ANGLE, \
.v = D, \
.c1 = C1, \
.c2 = C2, \
}
#define CEND() \
{ \
.type = CT_END, \
}
struct path_step {
uint64_t i;
bool direction;
};
struct constraint {
enum constraint_type type;
double v;
struct component *c1;
struct component *c2;
uint64_t order;
struct path_step path[SEARCH_DEPTH];
bool forward;
bool used;
};
void alias_point(struct constraints *c, struct component *alias, struct component *target);
void add_constraint(struct constraints *c, struct constraint *new);
void free_constraints(struct constraints *c);
bool solve_constraints(struct constraints *constraints, struct drawing *drawing);
#define DEG(x) ((x) * M_PI / 180.0)
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