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33 lines
2.4 KiB
33 lines
2.4 KiB
3 years ago
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# Hints
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## General
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- Don't worry about how the arguments are derived, just focus on combining the arguments to return the intended result.
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## 1. Define if pac-man can eat a ghost
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- You need to define a [named function][named-function] with 2 arguments. The first argument is a [boolean][boolean] value, whether pac-man has a power pellet active. The second argument is a [boolean][boolean] value, whether pac-man is touching a ghost.
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- The function must return a [boolean][boolean] value.
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- You can use the [boolean][boolean] operator [`and/2`][boolean-function] to combine the arguments for a result.
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## 2. Define if pac-man scores
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- You need to define a [named function][named-function] with 2 arguments. The first argument is a [boolean][boolean] value, whether pac-man is touching a power pellet. The second argument is a [boolean][boolean] value, whether pac-man is touching a dot.
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- The function must return a [boolean][boolean] value.
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- You can use the [boolean][boolean] operator [`or/2`][boolean-function] to combine the arguments for a result.
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## 3. Define if pac-man loses
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- You need to define a [named function][named-function] with 2 arguments. The first argument is a [boolean][boolean] value, whether pac-man has a power pellet active. The second argument is a [boolean][boolean] value, whether pac-man is touching a ghost.
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- The function must return a [boolean][boolean] value.
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- You can use the [boolean][boolean] operators [`and/2`][boolean-function] and [`not/1`][boolean-function] to combine the arguments for a result.
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## 4. Define if pac-man wins
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- You need to define a [named function][named-function] with 3 arguments. The second argument is a [boolean][boolean] value, whether pac-man has eaten all of the dots. The first argument is a [boolean][boolean] value, whether pac-man has a power pellet active. The second argument is a [boolean][boolean] value, whether pac-man is touching a ghost.
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- The function must return a [boolean][boolean] value.
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- You can use the [boolean][boolean] operators [`and/2`][boolean-function] and [`not/1`][boolean-function] to combine the arguments and results of invoked functions.
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[named-function]: https://elixir-lang.org/getting-started/modules-and-functions.html#named-functions
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[boolean]: https://elixir-lang.org/getting-started/basic-types.html#booleans
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[boolean-function]: https://elixir-lang.org/getting-started/basic-operators.html
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