Spikes hurt, floor does not

Unit 2: Variables, Decisions, and Input · Lesson 2.4 if and else · code exercise, graded

What to write

1. If the player is touching a Spike, take one off lives.
2. Otherwise move 3 forward.
3. Never do both in the same frame.

Your code

Press Run to watch your code on the grid. Nothing is recorded by Run, so press it as often as you like. Step goes one frame at a time, which is the view that actually explains what act() does.

What it is checked against

These are the examples you can see. There are also 2 hidden cases with different setups, so printing the answers below as text passes nothing.

World w = new World(12, 6, 32);
Harness h = new Harness();
w.addObject(h, 2, 3);
h.act();
System.out.println(h.getX() + "," + h.lives);

5,3

World w = new World(12, 6, 32);
Harness h = new Harness();
w.addObject(h, 2, 3);
w.addObject(new Spike(), 2, 3);
h.act();
System.out.println(h.getX() + "," + h.lives);

2,2