split splosions and projectiles into separate files

game.go

@@ -163,9 +163,10 @@ func (g *game) run() {
 			}
 			sort.Sort(RobotSorter{Robots: payload.Robots})
 
-			payload.Projectiles = append(payload.Projectiles,
-				g.nudgeProjectiles()...,
-			)
+			g.nudgeProjectiles()
+			for p := range g.projectiles {
+				payload.Projectiles = append(payload.Projectiles, *p)
+			}
 
 			for s := range g.splosions {
 				s.Tick()
@@ -234,57 +235,7 @@ func (g *game) run() {
 func (g *game) nudgeProjectiles() (rprojectiles []Projectile) {
 	rprojectiles = make([]Projectile, 0)
 	for p := range g.projectiles {
-		newPos := move(p.Position, p.MoveTo, float32(p.Speed), delta)
-
-		hit_player := false
-		for player := range g.players {
-			if player.Robot.Id == p.Id {
-				continue
-			}
-			dist := v.Distance(player.Robot.Position, p.Position)
-			if dist < 5.0 {
-				hit_player = true
-			}
-		}
-
-		// Are we going to intersect the destination zone in this tick?
-		r_dest := v.Rect2d{
-			A: v.Point2d{X: p.MoveTo.X - 3, Y: p.MoveTo.Y - 3},
-			B: v.Point2d{X: p.MoveTo.X + 3, Y: p.MoveTo.Y + 3}}
-
-		travel := newPos.Sub(p.Position)
-		arrived, _, _ := v.RectIntersection(r_dest, p.Position, travel)
-		if arrived || hit_player {
-			delete(g.projectiles, p)
-
-			// Spawn a splosion
-			splo := &Splosion{
-				Id:        p.Id,
-				Position:  p.Position,
-				Radius:    p.Radius,
-				MaxDamage: 10,
-				MinDamage: 5,
-				Lifespan:  8,
-			}
-			g.splosions[splo] = true
-
-			for player := range g.players {
-				dist := v.Distance(player.Robot.Position, p.Position)
-				if dist < float32(p.Radius) {
-
-					// TODO map damage Max to Min based on distance from explosion
-					if player.Robot.Health > 0 {
-						player.Robot.Health -= p.Damage
-						if player.Robot.Health <= 0 {
-						}
-					}
-				}
-			}
-		} else {
-			p.Position.X = newPos.X
-			p.Position.Y = newPos.Y
-			rprojectiles = append(rprojectiles, *p)
-		}
+		p.Tick(g)
 	}
 	return
 }