add web interface using Wasm

1 files changed, 186 insertions, 0 deletions

diff --git a/web/dartboat_wasm.c b/web/dartboat_wasm.c
new file mode 100644
index 0000000..f43afb0
--- /dev/null
+++ b/web/dartboat_wasm.c
@@ -0,0 +1,186 @@
+#include "checkouts.h"
+#include "comp.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <time.h>
+
+#include <emscripten/emscripten.h>
+
+// TODO refactor *everything*
+
+struct match_state {
+	struct leg *l1, *l2;
+	int complete;
+};
+
+void suggested(int rem, char *buf) {
+	buf[0] = 0;
+
+	if (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);
+				}
+			}
+		}
+	}
+}
+
+EMSCRIPTEN_KEEPALIVE bool user_visit(struct match_state *state, int points) {
+	if (state->l1->rem <= 0 || state->l2->rem <= 0)
+		return false;
+
+	if (points > state->l1->rem || points > 180 || points == 179 ||
+		points == 178 || points == 176 || points == 175 || points == 173 ||
+		points == 172 || points == 169 || points == 166 || points == 163)
+		return false;
+
+	struct leg *l = state->l1;
+	struct visit *v = l->visits + l->n_visits++;
+	v->points = points;
+	l->rem -= points;
+	v->rem = l->rem;
+	EM_ASM({updateUserRem($0)}, l->rem);
+
+	char sug[100];
+	suggested(v->rem, sug);
+	EM_ASM({promptSugg($0)}, sug);
+
+	return true;
+}
+
+EMSCRIPTEN_KEEPALIVE int is_match_over(struct match_state *state) {
+	if (state->l1->rem <= 0 || state->l2->rem <= 0)
+		return 1;
+	return 0;
+}
+
+EMSCRIPTEN_KEEPALIVE void boat_visit(struct match_state *state) {
+	if (state->l1->rem <= 0 || state->l2->rem <= 0)
+		return;
+
+	struct leg *l = state->l2;
+	comp_visit(l);
+
+	struct visit *v = l->visits + l->n_visits - 1;
+
+	char *s1 = segment_name(v->darts[0]),
+		*s2 = v->n_darts > 1 ? segment_name(v->darts[1]) : NULL,
+		*s3 = v->n_darts > 2 ? segment_name(v->darts[2]) : NULL;
+
+	EM_ASM({boatVisitRes($0, $1, $2, $3, $4, $5, $6, $7)},
+		l->rem, v->n_darts, segment_points(v->darts[0]),
+		v->n_darts > 1 ? segment_points(v->darts[1]) : 0,
+		v->n_darts > 2 ? segment_points(v->darts[2]) : 0,
+		s1, s2, s3);
+
+	free(s1);
+	free(s2);
+	free(s3);
+}
+
+EMSCRIPTEN_KEEPALIVE void draw_match(struct match_state *state) {
+	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];
+	visit_no[0] = u_pts[0] = u_rem[0] = b_pts[0] = b_rem[0] = b_darts[0] = 0;
+
+	EM_ASM({drawVisitNames($0, $1)},
+		l1->name, l2->name);
+	EM_ASM({drawVisit($0, $1, $2, $3, $4, $5)},
+		"0", "", "501", "", "501", "");
+
+	int n_visits = l1->n_visits > l2->n_visits ? l1->n_visits : l2->n_visits;
+	for (int i = 0; i < n_visits; ++i) {
+		sprintf(visit_no, "%d", i + 1);
+
+		struct visit *v = l1->visits + i;
+		sprintf(u_pts, "%d", v->points);
+		sprintf(u_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);
+
+			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);
+				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[0] = 0;
+		u_pts[0] = 0;
+		u_rem[0] = 0;
+		b_pts[0] = 0;
+		b_rem[0] = 0;
+		b_darts[0] = 0;
+	}
+
+	if (l1->rem <= 0) {
+		EM_ASM({promptMsg($0)}, "You win! :)");
+		EM_ASM(matchOver());
+	} else if (l2->rem <= 0) {
+		EM_ASM({promptSugg($0)}, "");
+		EM_ASM({promptMsg($0)}, "Bot wins. :(");
+		EM_ASM(matchOver());
+	} else {
+		EM_ASM({promptMsg($0)}, "Enter points:");
+	}
+
+}
+
+void init_boat() {
+	static int ran;
+
+	if (ran) return;
+	ran = 1;
+
+	srand(time(NULL));
+	init_board();
+
+	EM_ASM({updateStdev($0)}, horizontal_stdev);
+}
+
+EMSCRIPTEN_KEEPALIVE struct match_state *start_match() {
+	init_boat();
+	struct match_state *state = calloc(1, sizeof(struct match_state));
+	state->l1 = leg_init(501, "User");
+	state->l2 = leg_init(501, "Bot");
+
+	EM_ASM({updateUserRem($0)}, state->l1->rem);
+	EM_ASM({updateBoatRem($0)}, state->l2->rem);
+
+	return state;
+}
+
+EMSCRIPTEN_KEEPALIVE void free_match(struct match_state *state) {
+	leg_free(state->l1);
+	leg_free(state->l2);
+	free(state);
+}
+
+EMSCRIPTEN_KEEPALIVE void change_stdev(float hstdev, float vstdev) {
+	printf("%f %f\n", hstdev, vstdev);
+	horizontal_stdev = hstdev;
+	vertical_stdev = vstdev;
+}
+
+int main() {
+	EM_ASM(initMatch());
+}