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Prioritize self-collisions over other collisions. Fixes #16.

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This commit is contained in:
Brad Van Vugt 2020-07-21 17:11:12 -07:00
parent c74436e709
commit 5aec70de2b
3 changed files with 103 additions and 7 deletions
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51
squad_test.go
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@ -338,3 +338,54 @@ func TestSquadIsGameOver(t *testing.T) {
require.Equal(t, test.Expected, actual)
}
}
func TestIssue16Regression(t *testing.T) {
// This is a specific test case to detect this issue:
// https://github.com/BattlesnakeOfficial/rules/issues/16
boardState := &BoardState{
Width: 11,
Height: 11,
Snakes: []Snake{
{ID: "teamBoi", Health: 10, Body: []Point{{1, 4}, {1, 3}, {0, 3}, {0, 2}, {1, 2}, {2, 2}}},
{ID: "Node-Red-Bellied-Black-Snake", Health: 10, Body: []Point{{1, 8}, {2, 8}, {2, 9}, {3, 9}, {4, 9}, {4, 10}}},
{ID: "Crash Override", Health: 10, Body: []Point{{2, 7}, {2, 6}, {3, 6}, {4, 6}, {4, 5}, {5, 5}, {6, 5}}},
{ID: "Zero Cool", Health: 10, Body: []Point{{6, 5}, {5, 5}, {5, 4}, {5, 3}, {4, 3}, {3, 3}, {3, 4}}},
},
}
squadMap := map[string]string{
"teamBoi": "BirdSnakers",
"Node-Red-Bellied-Black-Snake": "BirdSnakers",
"Crash Override": "Hackers",
"Zero Cool": "Hackers",
}
snakeMoves := []SnakeMove{
{ID: "teamBoi", Move: "down"},
{ID: "Node-Red-Bellied-Black-Snake", Move: "left"},
{ID: "Crash Override", Move: "left"},
{ID: "Zero Cool", Move: "left"},
}
require.Equal(t, len(squadMap), len(boardState.Snakes), "squad map is wrong size, error in test setup")
r := SquadRuleset{
AllowBodyCollisions: true,
SquadMap: squadMap,
}
nextBoardState, err := r.CreateNextBoardState(boardState, snakeMoves)
require.NoError(t, err)
require.Equal(t, len(boardState.Snakes), len(nextBoardState.Snakes))
expectedSnakes := []Snake{
{ID: "teamBoi", Body: []Point{{1, 5}, {1, 4}, {1, 3}, {0, 3}, {0, 2}, {1, 2}}},
{ID: "Node-Red-Bellied-Black-Snake", Body: []Point{{0, 8}, {1, 8}, {2, 8}, {2, 9}, {3, 9}, {4, 9}}},
{ID: "Crash Override", Body: []Point{{1, 7}, {2, 7}, {2, 6}, {3, 6}, {4, 6}, {4, 5}, {5, 5}}},
{ID: "Zero Cool", Body: []Point{{5, 5}, {6, 5}, {5, 5}, {5, 4}, {5, 3}, {4, 3}, {3, 3}}, EliminatedCause: EliminatedBySelfCollision, EliminatedBy: "Zero Cool"},
}
for i, snake := range nextBoardState.Snakes {
require.Equal(t, expectedSnakes[i].ID, snake.ID, snake.ID)
require.Equal(t, expectedSnakes[i].Body, snake.Body, snake.ID)
require.Equal(t, expectedSnakes[i].EliminatedCause, snake.EliminatedCause, snake.ID)
require.Equal(t, expectedSnakes[i].EliminatedBy, snake.EliminatedBy, snake.ID)
}
}