52 lines
1.5 KiB
Markdown
52 lines
1.5 KiB
Markdown
|
# Turtle
|
||
|
|
|
||
|
|
A fun interactive program where the user enters a sequence of moves using the buttons and the robot executes it.
|
||
|
|
|
||
|
|
|
||
|
|
```blocks
|
||
|
|
/**
|
||
|
|
* Run this program with a driving base.
|
||
|
|
**/
|
||
|
|
let indent = ""
|
||
|
|
let command = ""
|
||
|
|
let c = ""
|
||
|
|
brick.buttonLeft.onEvent(ButtonEvent.Pressed, function () {
|
||
|
|
command = command + "L"
|
||
|
|
})
|
||
|
|
brick.buttonRight.onEvent(ButtonEvent.Pressed, function () {
|
||
|
|
command = command + "R"
|
||
|
|
})
|
||
|
|
brick.buttonUp.onEvent(ButtonEvent.Pressed, function () {
|
||
|
|
command = command + "F"
|
||
|
|
})
|
||
|
|
brick.buttonDown.onEvent(ButtonEvent.Pressed, function () {
|
||
|
|
command = command + "B"
|
||
|
|
})
|
||
|
|
brick.buttonEnter.onEvent(ButtonEvent.Pressed, function () {
|
||
|
|
indent = ""
|
||
|
|
for (let index = 0; index <= command.length; index++) {
|
||
|
|
c = command[index]
|
||
|
|
brick.showString("" + indent + c, 4)
|
||
|
|
indent = "" + indent + " "
|
||
|
|
if (c == "L") {
|
||
|
|
motors.largeBC.steer(-100, 50, 378, MoveUnit.Degrees)
|
||
|
|
} else if (c == "R") {
|
||
|
|
motors.largeBC.steer(100, 50, 378, MoveUnit.Degrees)
|
||
|
|
} else if (c == "F") {
|
||
|
|
motors.largeBC.steer(0, 50, 1, MoveUnit.Rotations)
|
||
|
|
} else if (c == "B") {
|
||
|
|
motors.largeBC.steer(0, -50, 1, MoveUnit.Rotations)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
command = ""
|
||
|
|
brick.showString("", 2)
|
||
|
|
})
|
||
|
|
motors.largeBC.setBrake(true)
|
||
|
|
forever(function () {
|
||
|
|
brick.showString("TURTLE", 1)
|
||
|
|
brick.showString(command, 3)
|
||
|
|
brick.showString("up/down: forward/backward", 8)
|
||
|
|
brick.showString("left/right: turn", 9)
|
||
|
|
brick.showString("enter: play commands", 10)
|
||
|
|
})
|
||
|
|
```
|