### draw.light

Source: https://zymplectic.com/documentation.html

Sets the light source position or direction.

```APIDOC
## draw.light

### Description
Sets the light source position or direction.

### Method
`draw.light(double x, double y, double z, double p)`

### Parameters
- `x`, `y`, `z`: Light source position or direction coordinates.
- `p`: If 0, the light is directional; otherwise, it's a point source.

### Notes
- If not set, the light source is at the camera.
- Has no effect in 2D mode.
```

--------------------------------

### draw.shine

Source: https://zymplectic.com/documentation.html

Assigns specular and shininess values for drawn objects.

```APIDOC
## draw.shine

### Description
Assigns specular and shininess values for drawn objects.

### Method
`draw.shine(double a, double b)`

### Parameters
- `a`: Specular value, ranging from 0 to 1.
- `b`: Shininess value, ranging from 0 to 1.

### Notes
- Has no effect in 2D mode.
```

--------------------------------

### draw.textscreen

Source: https://zymplectic.com/documentation.html

Writes text at screen pixel coordinates.

```APIDOC
## draw.textscreen

### Description
Writes text at screen pixel coordinates.

### Method
`draw.textscreen(double x, double y, char* A, int a)`

### Parameters
- `x`, `y`: Screen pixel coordinates. (0,0 is center, default resolution 768x768, range -384 to 384).
- `A`: Character array containing the text.
- `a`: Length of the character array.
```

--------------------------------

### draw.rgb

Source: https://zymplectic.com/documentation.html

Assigns a color (RGB and optional alpha) for subsequent drawn objects.

```APIDOC
## draw.rgb

### Description
Assigns a color (RGB and optional alpha) for subsequent drawn objects.

### Method
`draw.rgb(double r, double g, double b)`
`draw.rgb(double r, double g, double b, double a)`

### Parameters
- `r`, `g`, `b`: Red, green, and blue components of the color, ranging from 0 to 1.
- `a` (optional): Alpha component of the color, ranging from 0 to 1. Defaults to 1.
```

--------------------------------

### draw.text

Source: https://zymplectic.com/documentation.html

Writes text at a specified 3D or 2D position.

```APIDOC
## draw.text

### Description
Writes text at a specified 3D or 2D position.

### Method
`draw.text(double x, double y, char* A, int a)`
`draw.text(double x, double y, double z, char* A, int a)`

### Parameters
- `x`, `y`: 2D coordinates for the text position.
- `z` (optional): 3D coordinate for the text position.
- `A`: Character array containing the text.
- `a`: Length of the character array.
```

--------------------------------

### draw.rod

Source: https://zymplectic.com/documentation.html

Draws a cylinder between two points with a specified radius. Optionally accepts rotation and edge count.

```APIDOC
## draw.rod

### Description
Draws a cylinder between two points with a specified radius. Optionally accepts rotation and edge count.

### Method
`draw.rod(double x1, double y1, double z1, double x2, double y2, double z2, double r)`
`draw.rod(double x1, double y1, double z1, double x2, double y2, double z2, double r, double a, int n)`

### Parameters
- `x1`, `y1`, `z1`: Coordinates of the first point.
- `x2`, `y2`, `z2`: Coordinates of the second point.
- `r`: Radius of the cylinder.
- `a` (optional): Rotation in radians. Defaults to 0.
- `n` (optional): Edge count. Defaults to 32.

### Notes
- If `n > 16`, edges are drawn with smooth normals.
- If in 2D mode, draws a cylinder ignoring depth.
```

--------------------------------

### draw.hrod

Source: https://zymplectic.com/documentation.html

Draws a hollow cylinder between two points with specified radii. Optionally accepts rotation and edge count.

```APIDOC
## draw.hrod

### Description
Draws a hollow cylinder between two points with specified radii. Optionally accepts rotation and edge count.

### Method
`draw.hrod(double x1, double y1, double z1, double x2, double y2, double z2, double r, double ri)`
`draw.hrod(double x1, double y1, double z1, double x2, double y2, double z2, double r, double ri, double a, int n)`

### Parameters
- `x1`, `y1`, `z1`: Coordinates of the first point.
- `x2`, `y2`, `z2`: Coordinates of the second point.
- `r`: Outer radius of the hollow cylinder.
- `ri`: Inner radius of the hollow cylinder.
- `a` (optional): Rotation in radians. Defaults to 0.
- `n` (optional): Edge count. Defaults to 32.

### Notes
- If `n > 16`, edges are drawn with smooth normals.
- If in 2D mode, draws a hollow cylinder ignoring depth.
```

=== COMPLETE CONTENT === This response contains all available snippets from this library. No additional content exists. Do not make further requests.