From 3be565f4e8ee1610aae5b0945185b4012f026c87 Mon Sep 17 00:00:00 2001
From: Lizzy Fleckenstein <lizzy@vlhl.dev>
Date: Sun, 23 Jun 2024 20:07:44 +0200
Subject: implement movement

Signed-off-by: Lizzy Fleckenstein <lizzy@vlhl.dev>
---
 src/server.c | 52 ++++++++++++++++++++++++++++++----------------------
 1 file changed, 30 insertions(+), 22 deletions(-)

(limited to 'src/server.c')

diff --git a/src/server.c b/src/server.c
index 45d8384..30b5676 100644
--- a/src/server.c
+++ b/src/server.c
@@ -41,7 +41,7 @@ typedef struct {
 typedef struct {
 	bool auth;
 	str name;
-	uint64_t id;
+	entity_id id;
 	vec2 pos;
 	int8_t z;
 	peer conn;
@@ -53,7 +53,7 @@ typedef struct {
 	str passphrase;
 	array(map) maps;
 	arraybuf(player) players;
-	uint64_t entity_id;
+	entity_id next_entity;
 } game;
 
 node *map_node(game *g, vec2 p, int8_t z)
@@ -163,23 +163,6 @@ bool map_load(map *m)
 #undef TRY
 }
 
-void ser_color(strbuf *w, color c)
-{
-	ser_u8(w, c.r);
-	ser_u8(w, c.g);
-	ser_u8(w, c.b);
-}
-
-void ser_node(strbuf *w, node *n)
-{
-	bool present = n != NULL && n->present;
-	ser_bool(w, present);
-	if (!present)
-		return;
-	ser_i8(w, n->z);
-	ser_color(w, n->col);
-}
-
 void send_players(game *g)
 {
 	for (size_t i = 0; i < g->players.len; i++) {
@@ -190,7 +173,7 @@ void send_players(game *g)
 				player *p = &g->players.data[i];
 				if (!p->auth) continue;
 				ser_str(&pkt, p->name);
-				ser_u64(&pkt, p->id);
+				ser_entity_id(&pkt, p->id);
 			}
 		)
 	}
@@ -276,6 +259,30 @@ bool handle_hi(str pkt, player *p, game *g)
 	return true;
 }
 
+bool handle_move(str pkt, player *p, [[maybe_unused]] game *g)
+{
+	dir d;
+	if (!deser_dir(&pkt, &d)) return false;
+
+	vec2 v = dir_to_vec2(d);
+	if (vec2_iszero(v))
+		return false;
+
+	// yolo
+	p->pos = vec2_add(v, p->pos);
+	SEND_PKT(p->conn, CPKT_ENTITY,
+		ser_u16(&pkt, 1);
+		ser_entity_id(&pkt, p->id);
+		ser_entity_cmd(&pkt, ENTITY_MOVE);
+		ser_vec2(&pkt, p->pos);
+	)
+
+	// TODO: only send newly visible nodes
+	send_nodes(p, g, box2_around(p->pos, SIGHT_RANGE), p->z);
+
+	return true;
+}
+
 bool handle_pkt(str pkt, player *p, game *g)
 {
 	pkt_type type;
@@ -287,6 +294,7 @@ bool handle_pkt(str pkt, player *p, game *g)
 
 	switch (type) {
 		case SPKT_HI: return handle_hi(pkt, p, g);
+		case SPKT_MOVE: return handle_move(pkt, p, g);
 		default: return false;
 	}
 }
@@ -298,7 +306,7 @@ int main()
 	game g = {0};
 
 	g.accept_fd = -1;
-	g.entity_id = 1;
+	g.next_entity = 1;
 	g.motd = str_clone(S("Welcome to test server"));
 	g.passphrase = str_clone(S(""));
 
@@ -359,7 +367,7 @@ int main()
 			printf("new player\n");
 			player *p = ARR_APPEND(g.players);
 			p->auth = false;
-			p->id = g.entity_id++;
+			p->id = g.next_entity++;
 			p->name = S("(unauthenticated)");
 			peer_init(&p->conn, socket, &p->name);
 		}
-- 
cgit v1.2.3