Devlog #9📝

Prepare

• 🟩 Learn godot

Create basic line addition

• 🟩 Static line on mouse enter/exit

Filter valid lines

• 🟩 only cross two sides
• 🟩 mouse clicking (cut mode on)
• 🟩 mouse velocity high enough
• 🟥 Stops counting after 0.2 seconds

Shape as polygon

• 🟥 Rename rect / _get_rect_local() -> polygon equivalents (correct calc)
• 🟥 Rename rect_edges / _get_rect_edges() -> polygon edge list (correct calc)
• 🟥 Store shape as a point list
• 🟥 Render shape from that point list (Polygon2D)
• 🟥 Match collider to the same points (CollisionPolygon2D)
• 🟥 _is_inside` uses Geometry2D.is_point_in_polygon
• 🟥 Enter/exit hits use polygon edges (not just 4 rect sides)

Perform a real cut

• 🟥 On valid swipe, get enter + exit points on the polygon
• 🟥 Split the point list into two polygons along that cut
• 🟥 Replace the old shape with the two new shapes (visual + collider)
• 🟥 Remove / ignore the cut line after the split (or keep as VFX only)

Cut pieces move

• 🟥 Put each piece on its own body (RigidBody2D or AnimatableBody2D / manual motion)
• 🟥 On split, give each piece a velocity away from the cut (impulse / linear_velocity)
• 🟥 Optional: add gravity / spin so pieces fall and rotate
• 🟥 Optional: despawn pieces after a short time or off-screen

Stop here (matches “until pieces move”) 🛑

• 🟥 One shape -> swipe -> two pieces fly apart

(i used ai to make this devlog but it just turned my attachment into markdown, that’s all)