started with generic collision_system (not working yet)

components/collider.go

@@ -0,0 +1,14 @@
+package components
+
+import "github.com/mlange-42/arche/ecs"
+
+// if  the function  returns true,  the  entity will  be removed.  The
+// supplied entity  is the target  entitiy with which the  checked one
+// collided.
+
+type Collider struct {
+	CollisionHandler        func(*ecs.World, *Position, *Position, *Velocity, ecs.Entity) bool
+	EdgeHandler             func(*ecs.World, *Position, *Position, *Velocity, ecs.Entity) bool
+	PassoverHandler         func(*ecs.World, *Position, *Velocity, *ecs.Entity) bool
+	PassoverFinishedHandler func(*ecs.World, *Position, *Velocity, *ecs.Entity) bool
+}