Emoji Cannon Demo

Source reference: app-demo/.../EmojiCannonDemoScreen.kt

What this demo shows

• Dynamic projectile spawning with per-shot body IDs.
• Manual impulse control for launch trajectories.
• Impact-triggered shatter scoped to world bounds collisions.

Key APIs

• PhysicsBodySpec(bodyType = Dynamic, ...)
• applyLinearImpulse(id, impulsePx)
• explodeOnImpactByIds = setOf(PhysicsCollisionIds.WORLD_BOUNDS)
• remove(id) and resetScene() for cleanup