🤖 FLL Robot Simulator

Setup

place(x, y, heading)

Place robot at (x, y) mm. Heading: 0° = right, -90° = up/forward, 90° = down.

Movement Commands

straight(distance)

Drive straight for distance mm. Positive = forward, negative = backward.

turn(angle)

Turn in place by angle degrees. Positive = right (CW), negative = left (CCW).

curve(radius, angle)

Robot center traces an arc around a pivot point.

radius: distance from robot center to pivot. Positive = pivot RIGHT, negative = pivot LEFT.

angle: degrees to travel. Positive = forward around arc.

Tip: radius = 60mm (half axle track) → one wheel stays still!

arc(radius, angle)

Alias for curve().

Settings

speed(mm_per_sec)

Set movement speed for animation (default: 100 mm/s).

color(colorName)

Set robot trail color: "red", "blue", "green", "orange", etc.

Field & Heading

Table: 2438 × 1219 mm (8' × 4')

Origin (0,0): Bottom-left corner

Heading: 0=right, -90=up, 90=down, ±180=left