filter projectiles and objects by scanners

game.go

@@ -165,7 +165,6 @@ func (g *game) send_update(payload *Boardstate) {
 	for p := range g.players {
 		// Copy the payload but only add the robots in scanner range
 		player_payload := NewBoardstate()
-		player_payload.Projectiles = payload.Projectiles
 		player_payload.Splosions = payload.Splosions
 		player_payload.Obstacles = payload.Obstacles
 		player_payload.AllBots = payload.AllBots
@@ -176,7 +175,11 @@ func (g *game) send_update(payload *Boardstate) {
 			player_payload.OtherRobots,
 			p.Robot.GetTruncatedDetails())
 
+		player_payload.Projectiles = []Projectile{}
+		player_payload.Obstacles = []Obstacle{}
+
 		if p.Robot.Health > 0 {
+			// Filter robots by scanner
 			for player := range g.players {
 				for _, scan_entry := range p.Robot.Scanners {
 					if player.Robot.Id == scan_entry.Id {
@@ -186,8 +189,37 @@ func (g *game) send_update(payload *Boardstate) {
 					}
 				}
 			}
+
+			// Filter projectiles
+			for proj := range g.projectiles {
+
+				if proj.Owner == p {
+					player_payload.Projectiles = append(
+						player_payload.Projectiles,
+						*proj)
+				}
+
+				for _, scan_entry := range p.Robot.Scanners {
+					if proj.Id == scan_entry.Id {
+						player_payload.Projectiles = append(
+							player_payload.Projectiles,
+							*proj)
+					}
+				}
+			}
+
+			// Filter objects
+			for _, ob := range g.obstacles {
+				if ob.distance_from_point(p.Robot.Position) < float32(p.Robot.Stats.ScannerRadius) {
+					player_payload.Obstacles = append(
+						player_payload.Obstacles,
+						ob)
+				}
+			}
 		} else {
 			player_payload.OtherRobots = payload.OtherRobots
+			player_payload.Projectiles = payload.Projectiles
+			player_payload.Obstacles = payload.Obstacles
 		}
 
 		// x, _ := json.Marshal(player_payload)