godot/main/tests/test_astar.cpp
Maykeye 40562a67c8 Changed A* exit condition, added 2 tests for it
A* now exits when next node from open set with least cost happens to be end_point,
not when node with least cost has end_point as a neigbour.

Added two tests for astar:
* ABC tests case where start and end node are
neigbours
* ABCX tests case with intermediate nodes
2018-08-28 19:48:07 +06:00

117 lines
3.7 KiB
C++

/*************************************************************************/
/* test_astar.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md) */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "a_star.h"
#include "os/os.h"
#include <stdio.h>
#include "test_astar.h"
namespace TestAStar {
class ABCX : public AStar {
public:
enum { A,
B,
C,
X };
ABCX() {
add_point(A, Vector3(0, 0, 0));
add_point(B, Vector3(1, 0, 0));
add_point(C, Vector3(0, 1, 0));
add_point(X, Vector3(0, 0, 1));
connect_points(A, B);
connect_points(A, C);
connect_points(B, C);
connect_points(X, A);
}
// Disable heuristic completely
float _compute_cost(int p_from, int p_to) {
if (p_from == A && p_to == C) {
return 1000;
}
return 100;
}
};
bool test_abc() {
ABCX abcx;
PoolVector<int> path = abcx.get_id_path(ABCX::A, ABCX::C);
bool ok = path.size() == 3;
int i = 0;
ok = ok && path[i++] == ABCX::A;
ok = ok && path[i++] == ABCX::B;
ok = ok && path[i++] == ABCX::C;
return ok;
}
bool test_abcx() {
ABCX abcx;
PoolVector<int> path = abcx.get_id_path(ABCX::X, ABCX::C);
bool ok = path.size() == 4;
int i = 0;
ok = ok && path[i++] == ABCX::X;
ok = ok && path[i++] == ABCX::A;
ok = ok && path[i++] == ABCX::B;
ok = ok && path[i++] == ABCX::C;
return ok;
}
typedef bool (*TestFunc)(void);
TestFunc test_funcs[] = {
test_abc,
test_abcx,
NULL
};
MainLoop *test() {
int count = 0;
int passed = 0;
while (true) {
if (!test_funcs[count])
break;
bool pass = test_funcs[count]();
if (pass)
passed++;
OS::get_singleton()->print("\t%s\n", pass ? "PASS" : "FAILED");
count++;
}
OS::get_singleton()->print("\n");
OS::get_singleton()->print("Passed %i of %i tests\n", passed, count);
return NULL;
}
} // namespace TestAStar