53 lines
1.5 KiB
Markdown
53 lines
1.5 KiB
Markdown
# Building and Running
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Clone the repository, navigate to the root of the project, and initialize the
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submodules:
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```sh
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git clone https://github.com/humanoidsandvichdispenser/cs381.git
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cd cs381
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git submodule update --init --recursive
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```
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Navigate to the `as3` directory, create a build directory, and run CMake to
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generate the build files:
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```sh
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cd as3
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mkdir -p build
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cd build
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cmake ..
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```
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Compile the code using `make`:
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```sh
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make
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```
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This should create an executable named `as3` in the `build` directory. You can
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run the executable with the following command:
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```sh
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./as3
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```
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# Instructions on how to use the program
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Use W and S to accelerate the penguin forward and backward. Use A and D to
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change heading direction. The penguin will only accelerate in the direction
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facing and will retain its velocity even when not accelerating or changing
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direction.
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# Readme Question
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`dt` is delta time, which is the time elapsed between each frame, which can be
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found by taking the current time and subtracting the time from the previous
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frame. Raylib provides a function `GetFrameTime()` that returns the time
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elapsed since the last frame, which can be used to calculate `dt`. By using
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`dt`, it ensures that physics calculations are independent of frame rate, since
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otherwise the velocity would be in terms of units per frame rather than units
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per second. By multiplying the velocity by `dt`, it converts the velocity to
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units per second, allowing for consistent movement regardless of the frame
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rate.
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