Food can spawn inside of the sanke's tail.

[lassag]

Describe the bug
Food has a chance to spawn inside of the sanke's tail.

To Reproduce
Steps to reproduce the behavior:

1. Restart the game
2. Restart again if it doesn't spawn inside of the tail.
3. Repeat until bug is found

Expected behavior
Food doesn't spawn inside of the tail.

Screenshots

Desktop (please complete the following information):

• OS: Windows 10
• Browser Google Chrome
• Version 79.0.3945.130 (Official Build) (64-bit)

Additional context
This only occurs during the pre-game; the food respawns somewhere else on game start, cf. foodInTail(snake).

[Northern-Web]

Thank you for the awareness. I have written a small piece of test, in order to establish the occurences of this issue. The unit test generates 1 million foods and checks whether each one of the foods spawn withing or outside the snake's position.

The results of the small unit test is as following:

=== FOOD SPAWN TEST ===

• Food in snake: 3 170 (0.317 %)
• Food not in snake: 996 830 (99.68299999999999 %)
• Total test cases: 1 000 000

=== END OF TEST ===

[Northern-Web]

• The snake board consists of 32x32 (1024) tiles.
• The snake starting position occupies 3 out of 1024 tiles.
• (3 / 1024) x 100 = 0,29296875 %

A theoretical possibility of 0,29 % that food will be generated within the snake's starting position.