web: refactor parts of c code

1 files changed, 68 insertions, 84 deletions

diff --git a/web/dartboat_wasm.c b/web/dartboat_wasm.c
index 6bbb97a..989e0c2 100644
--- a/web/dartboat_wasm.c
+++ b/web/dartboat_wasm.c
@@ -8,20 +8,21 @@
 
 #include <emscripten/emscripten.h>
 
-#define M_PVC 1
-#define M_P 2
-#define M_PVP 3
-
 int delay_ms = 500;
 
+enum match_mode {
+	M_PVC = 1,
+	M_P,
+	M_PVP
+};
+
 // TODO refactor *everything*
 
 struct match_state {
-	int mode;
+	enum match_mode mode;
 	struct leg *l1, *l2, *active_l;
 	int active_p;
 	int undone_count;
-	int complete;
 };
 
 struct match_state *state;
@@ -36,99 +37,100 @@ void switch_active_user() {
 }
 
 void set_user_active() {
+	state->active_p = 1;
+	state->active_l = state->l1;
+
 	EM_ASM({setPlayerActive($0)}, 1);
 	EM_ASM({setPromptHandler($0)}, "visit");
 }
 
 void set_boat_active() {
+	state->active_p = 2;
+	state->active_l = state->l2;
+
 	EM_ASM({setPlayerActive($0)}, 2);
 	EM_ASM({setPromptHandler()}, "");
 }
 
-void suggested(int rem, char *buf) {
-	buf[0] = 0;
+void update_player_sugg(int player, int rem)
+{
+	char str[15] = {0}, *p = str;
 
 	if (rem > 1 && rem <= 170) {
-		char *target = CHECKOUTS[2][rem-1];
-		if (target) {
-			int trem = rem - segment_points(segment_from_name(target));
-			int len = sprintf(buf, "%s", target);
-			if (trem) {
-				target = CHECKOUTS[1][trem-1];
-				len += sprintf(buf + len, "-%s", target);
-				trem = trem - segment_points(segment_from_name(target));
-
-				if (trem) {
-					target = CHECKOUTS[0][trem-1];
-					len += sprintf(buf + len, "-%s", target);
-				}
-			}
+		char *target;
+		int i = 3, trem = rem;
+		while (i && trem && (target = CHECKOUTS[--i][trem-1])) {
+			p += sprintf(p, i == 2 ? "%s" : "-%s", target);
+			trem -= segment_points(segment_from_name(target));
 		}
 	}
-}
 
-EMSCRIPTEN_KEEPALIVE void get_suggested(int rem, int player) {
-	static char buf[20];
-	suggested(rem, buf);
-	EM_ASM({updatePlayerSugg($0, $1)}, player, buf);
+	EM_ASM({updatePlayerSugg($0, $1)}, player, str);
 }
 
-EMSCRIPTEN_KEEPALIVE int is_match_over() {
-	if (state->l1->rem <= 0 || state->l2->rem <= 0)
-		return 1;
-	return 0;
+bool is_match_over() {
+	return state->l1->rem <= 0 || state->l2->rem <= 0;
 }
 
-void match_over() {
+void prompt_match_over() {
 	EM_ASM({setPromptHandler($0)}, "match_over");
 	EM_ASM({promptMsgR($0)}, "Press OK to end match.");
 	EM_ASM(setPlayerActive());
 }
 
-EMSCRIPTEN_KEEPALIVE void draw_match() {
+EMSCRIPTEN_KEEPALIVE void draw_visits() {
+	EM_ASM({clearVisits()});
+
 	struct leg *l1 = state->l1;
 	struct leg *l2 = state->l2;
 
-	char visit_no[10], u_pts[10], u_rem[10], b_pts[10], b_rem[10], b_darts[100];
+	char visit_no[10], p1_pts[10], p1_rem[10],
+		p2_pts[10], p2_rem[10], p2_darts[100];
 
-	sprintf(u_rem, "%d", l1->start);
-	sprintf(b_rem, "%d", l2->start);
+	sprintf(p1_rem, "%d", l1->start);
+	sprintf(p2_rem, "%d", l2->start);
 	EM_ASM({drawVisit($0, $1, $2, $3, $4, $5)},
-		"0", "", u_rem, "", state->mode == M_P ? "" : b_rem, "");
+		"0", "", p1_rem, "", state->mode == M_P ? "" : p2_rem, "");
 
 	int n_visits = l1->n_visits > l2->n_visits ? l1->n_visits : l2->n_visits;
 	for (int i = 0; i < n_visits; ++i) {
-		visit_no[0] = u_pts[0] = u_rem[0] = b_pts[0] = b_rem[0] = b_darts[0] = 0;
+		visit_no[0] = p1_pts[0] = p1_rem[0] =
+			p2_pts[0] = p2_rem[0] = p2_darts[0] = 0;
 
 		sprintf(visit_no, "%d", i + 1);
 
 		struct visit *v = l1->visits + i;
-		sprintf(u_pts, "%d", v->points);
-		sprintf(u_rem, "%d", v->rem);
+		sprintf(p1_pts, "%d", v->points);
+		sprintf(p1_rem, "%d", v->rem);
 
 		if (i < l2->n_visits) {
 			v = l2->visits + i;
-			sprintf(b_pts, "%d", v->points);
-			sprintf(b_rem, "%d", v->rem);
+			sprintf(p2_pts, "%d", v->points);
+			sprintf(p2_rem, "%d", v->rem);
 
 			for (int j = 0; j < v->n_darts; ++j) {
 				char *n = segment_name(v->darts[j]);
-				sprintf(b_darts + (j ? (j * 5 - 1) : 0), j == 0 ? "%4s" : " %4s", n);
+				sprintf(p2_darts + (j ? (j*5 - 1) : 0),
+					j == 0 ? "%4s" : " %4s", n);
 				free(n);
 			}
 		}
 
 		EM_ASM({drawVisit($0, $1, $2, $3, $4, $5)},
-			visit_no, u_pts, u_rem, b_pts, b_rem, b_darts);
+			visit_no, p1_pts, p1_rem, p2_pts, p2_rem, p2_darts);
 	}
+}
+
+EMSCRIPTEN_KEEPALIVE void draw_match() {
+	draw_visits();
 
-	if (l1->rem <= 0) {
+	if (state->l1->rem <= 0) {
 		EM_ASM({promptMsgL($0)}, "Darts needed?");
 		EM_ASM({setPromptHandler($0)}, "num_darts");
-	} else if (l2->rem <= 0) {
+	} else if (state->l2->rem <= 0) {
 		if (state->mode == M_PVC) {
 			EM_ASM({promptMsgL($0)}, "Bot wins. :(");
-			match_over();
+			prompt_match_over();
 		} else {
 			EM_ASM({promptMsgL($0)}, "Darts needed?");
 			EM_ASM({setPromptHandler($0)}, "num_darts");
@@ -138,35 +140,21 @@ EMSCRIPTEN_KEEPALIVE void draw_match() {
 	}
 }
 
-char *str_for_rem_state(int rem) {
-	char *buf = malloc(10);
-
+EMSCRIPTEN_KEEPALIVE void update_player_rem(int player, int rem) {
+	char str[10];
 	if (rem < 0 || rem == 1)
-		strcpy(buf, "BUST");
+		strcpy(str, "BUST");
 	else
-		sprintf(buf, "%d", rem);
+		sprintf(str, "%d", rem);
 
-	return buf;
-}
-
-EMSCRIPTEN_KEEPALIVE void update_user_rem(int rem) {
-	char *str = str_for_rem_state(rem);
-	EM_ASM({updatePlayerRem($0, $1)}, state->active_p, str);
-	free(str);
+	EM_ASM({updatePlayerRem($0, $1)}, player, str);
 
-	get_suggested(rem, state->active_p);
+	if (player == 1 || state->mode != M_PVC)
+		update_player_sugg(player, rem);
 }
 
 EMSCRIPTEN_KEEPALIVE void update_user_rem_from_pts(int pts) {
-	update_user_rem(state->active_l->rem - pts);
-}
-
-EMSCRIPTEN_KEEPALIVE void update_boat_rem(int rem) {
-	char *str = str_for_rem_state(rem);
-	EM_ASM({updatePlayerRem($0, $1)}, 2, str);
-	free(str);
-
-	//get_suggested(rem, 2);
+	update_player_rem(state->active_p, state->active_l->rem - pts);
 }
 
 void end_boat_throwing(int, double); // FIXME
@@ -235,13 +223,12 @@ EMSCRIPTEN_KEEPALIVE bool user_visit(int points) {
 	v->points = points;
 	l->rem -= points;
 	v->rem = l->rem;
-	update_user_rem(l->rem);
+	update_player_rem(state->active_p, l->rem);
 
 	if (v->rem > 0)
 		EM_ASM({updatePlayerAvg($0, $1)}, state->active_p,
 			(double)(l->start-l->rem)/l->n_visits);
 
-	EM_ASM({clearVisits()});
 	draw_match();
 
 	if (!is_match_over()) {
@@ -289,13 +276,12 @@ EMSCRIPTEN_KEEPALIVE bool user_undo() {
 	EM_ASM({updatePlayerAvg($0, $1)}, 2,
 		state->l2->n_visits ?
 			(double)(state->l2->start-state->l2->rem)/state->l2->n_visits : 0);
-	update_user_rem(l->rem);
+	update_player_rem(state->active_p, l->rem);
 	if (state->mode == M_PVC)
-		update_boat_rem(state->l2->rem);
+		update_player_rem(2, state->l2->rem);
 
 	memcpy(v, 0, sizeof(*v));
 
-	EM_ASM({clearVisits()});
 	EM_ASM({promptMsgR($0)}, "");
 	EM_ASM({setPromptHandler($0)}, "visit");
 	draw_match();
@@ -310,16 +296,15 @@ EMSCRIPTEN_KEEPALIVE void draw_boat_throwing(int pts, char *str) {
 	int rem = state->l2->n_visits > 1 ?
 		state->l2->visits[state->l2->n_visits-2].rem : state->l2->start;
 
-	update_boat_rem(rem - pts);
+	update_player_rem(2, rem - pts);
 	EM_ASM({setPromptInput($0)}, buf);
 	EM_ASM({promptMsgR($0)}, str);
 }
 
 EMSCRIPTEN_KEEPALIVE void end_boat_throwing(int rem, double avg) {
-	update_boat_rem(rem);
+	update_player_rem(2, rem);
 	EM_ASM({updatePlayerAvg($0, $1)}, 2, avg);
 	EM_ASM({setPromptInput($0)}, "");
-	EM_ASM(clearVisits());
 	EM_ASM({promptMsgR($0)}, "");
 	draw_match();
 
@@ -338,7 +323,7 @@ EMSCRIPTEN_KEEPALIVE void resp_numdarts(int n_darts) {
 	EM_ASM({updatePlayerAvg($0, $1)}, state->active_p,
 		((double)l->start / (((l->n_visits - 1) * 3) + n_darts)) * 3);
 	EM_ASM({promptMsgL($0)}, "You win! :)");
-	match_over();
+	prompt_match_over();
 }
 
 void init_boat() {
@@ -362,7 +347,7 @@ EMSCRIPTEN_KEEPALIVE void free_match() {
 	state = NULL;
 }
 
-EMSCRIPTEN_KEEPALIVE void match_init() {
+EMSCRIPTEN_KEEPALIVE void prompt_match_mode() {
 	for (int i = 1; i < 3; ++i) {
 		EM_ASM({hidePlayerInfo($0)}, i);
 		EM_ASM({updatePlayerName($0, $1)}, i, "");
@@ -392,7 +377,7 @@ EMSCRIPTEN_KEEPALIVE void start_match(int mode) {
 		state->l1 = leg_init(501, "User");
 		state->l2 = leg_init(501, "Bot");
 	} else {
-		state->l1 = leg_init(501, "Player 1");
+		state->l1 = leg_init(501, mode == M_PVP ? "Player 1" : "User");
 		state->l2 = leg_init(501, "Player 2");
 	}
 	EM_ASM({showPlayerInfo($0)}, 1);
@@ -403,12 +388,11 @@ EMSCRIPTEN_KEEPALIVE void start_match(int mode) {
 
 	EM_ASM({updatePlayerName($0, $1)}, 1, state->l1->name);
 	EM_ASM({updatePlayerName($0, $1)}, 2, state->l2->name);
-	update_user_rem(state->l1->rem);
-	update_boat_rem(state->l2->rem);
+	update_player_rem(1, state->l1->rem);
+	update_player_rem(2, state->l2->rem);
 	EM_ASM({updatePlayerAvg($0, $1)}, 1, 0);
 	EM_ASM({updatePlayerAvg($0, $1)}, 2, 0);
 
-	EM_ASM(clearVisits());
 	set_user_active();
 	EM_ASM({promptMsgR($0)}, "");
 	draw_match();
@@ -426,5 +410,5 @@ EMSCRIPTEN_KEEPALIVE void set_delay(int delay) {
 int main() {
 	EM_ASM(read_opts());
 	init_boat();
-	match_init();
+	prompt_match_mode();
 }