aego/modules/gameplay/res/docs/MotionGuideOriginal.aes

package demo

import "aego/input"

// Player walks with A/D or the arrows and jumps with Space, W or Up.
script Player {
    func Update(dt float) {
        m := node.Get<Motion2D>()
        x := 0.0
        if input.Down(input.KeyA) || input.Down(input.KeyLeft) {
            x -= 1
        }
        if input.Down(input.KeyD) || input.Down(input.KeyRight) {
            x += 1
        }
        m.Move(x)
        if input.KeyPressed(input.KeySpace) || input.KeyPressed(input.KeyW) || input.KeyPressed(input.KeyUp) {
            m.Jump()
        }
        if input.KeyReleased(input.KeySpace) || input.KeyReleased(input.KeyW) || input.KeyReleased(input.KeyUp) {
            m.JumpReleased()
        }
    }
}

// Lift moves a kinematic platform up and down.
script Lift {
    @export var Travel Vec2 = Vec2{0, -3}
    @export var Period float = 4

    var t float
    var start Vec2

    func Ready() {
        start = node.Transform2D().Position
    }

    func FixedUpdate(dt float) {
        t += dt
        phase := t / Period
        k := phase - float(int(phase))
        if k > 0.5 {
            k = 1 - k
        }
        k *= 2
        body := node.Get<Body2D>()
        body.MoveTo(Vec2{start.X + Travel.X*k, start.Y + Travel.Y*k}, 0)
    }
}