4 files changed, 89 insertions, 0 deletions
diff --git a/examples/charge.aup b/examples/charge.aup
new file mode 100644
index 0000000..d483b8f
--- /dev/null
+++ b/examples/charge.aup
@@ -0,0 +1,36 @@
+# Hold Space to charge a jump; gravity and the floor are authored here.
+state holding = 0
+state charge = 0
+state y = 240
+state velocity = 0
+input jump = key Space
+view actor_y = y
+view meter_width = charge * 200
+view amount = charge
+
+on jump.down {
+  if y >= 240 {
+    holding = 1
+    charge = 0
+  }
+}
+
+on jump.up {
+  if holding {
+    velocity = -(160 + charge * 300)
+    holding = 0
+    charge = 0
+  }
+}
+
+on frame {
+  if holding {
+    charge = clamp(charge + dt, 0, 1)
+  }
+  velocity = velocity + 600 * dt
+  y = y + velocity * dt
+  if y >= 240 {
+    y = 240
+    velocity = 0
+  }
+}
diff --git a/examples/counter.aup b/examples/counter.aup
new file mode 100644
index 0000000..d966292
--- /dev/null
+++ b/examples/counter.aup
@@ -0,0 +1,9 @@
+# Space increments a count; views expose what a surface would show.
+state count = 0
+input tap = key Space
+view label = count
+view tile_width = 40 + min(count, 20) * 8
+
+on tap.down {
+  count = count + 1
+}
diff --git a/examples/steps.aup b/examples/steps.aup
new file mode 100644
index 0000000..ee4eb47
--- /dev/null
+++ b/examples/steps.aup
@@ -0,0 +1,24 @@
+# if / else and else if; the first matching branch runs.
+state level = 0
+state band = 0
+input up = key ArrowUp
+input down = key ArrowDown
+view shown = band
+
+on up.down {
+  level = level + 1
+}
+
+on down.down {
+  level = level - 1
+}
+
+on frame {
+  if level > 2 {
+    band = 2
+  } else if level > 0 {
+    band = 1
+  } else {
+    band = 0
+  }
+}
diff --git a/examples/toggle.aup b/examples/toggle.aup
new file mode 100644
index 0000000..39417cc
--- /dev/null
+++ b/examples/toggle.aup
@@ -0,0 +1,20 @@
+# Space toggles visibility; Right arrow moves a position that wraps.
+state visible = 1
+state position = 120
+input toggle = key Space
+input move = key ArrowRight
+view marker_x = position
+view marker_radius = visible * 24
+view tile_x = position - 24
+view value = visible
+
+on toggle.down {
+  visible = !visible
+}
+
+on move.down {
+  position = position + 40
+  if position > 560 {
+    position = 80
+  }
+}