2 files changed, 116 insertions, 0 deletions
diff --git a/procyon/source/sav/cont.c b/procyon/source/sav/cont.c
new file mode 100644
index 0000000..e52fd76
--- /dev/null
+++ b/procyon/source/sav/cont.c
@@ -0,0 +1,81 @@
+#include <acm/info.h>
+#include <acm/sav.h>
+
+#include <flux.h>
+#include <inttypes.h>
+#include <zap/mem.h>
+
+static_assert(sizeof (acm_dflplnm) == acm_plnmlen);
+
+void acm_cont(acm_pldat * const _pldat) {
+	acm_log("Continuing\n");
+	acm_pldat      pldat;
+	uint_least64_t savver;
+	flux_err fluxerr;
+	flux_fil savfil;
+	fluxerr = flux_op(&savfil,acm_dat.savloc,flux_md_rd,flux_keep);
+	if (fluxerr) {
+		acm_log("Unable to open save file, starting new game: %s\n",flux_errstr(fluxerr));
+		goto new;
+	}
+	fluxerr = flux_rd(savfil,sizeof (savver),&savver,nullptr);
+	if (!fluxerr) {
+		fluxerr = flux_rd(savfil,sizeof (pldat),&pldat,nullptr);
+	}
+	flux_cl(savfil);
+	if (fluxerr) {
+		acm_log("Unable to read save file, starting new game: %s\n",flux_errstr(fluxerr));
+		goto new;
+	}
+	if (savver != acm_savver) {
+		printf("Old save version (%" PRIXLEAST64 "), starting new game: %s\n",savver,flux_errstr(fluxerr));
+		goto new;
+	}
+	acm_log("Validating commander name\n");
+	bool validnm = false;
+	for (zap_sz n = 0x0u;n < acm_plnmlen + 0x1u;++n) {
+		if (pldat.nm[n] == '\x0') {
+			if (n == 0x0u) {
+				break;
+			}
+			validnm = true;
+			break;
+		}
+	}
+	if (!validnm) {
+		acm_log("Invalid commander name (corrupt save file), starting new game\n");
+		acm_log(
+			"Commander name:\n"
+			"    %hhX %hhX %hhX %hhX\n"
+			"    %hhX %hhX %hhX %hhX\n"
+			"    %hhX %hhX %hhX %hhX\n"
+			"    %hhX %hhX %hhX %hhX\n"
+			"    %hhX\n",
+			pldat.nm[0x0u],pldat.nm[0x1u],pldat.nm[0x2u],pldat.nm[0x3u],
+			pldat.nm[0x4u],pldat.nm[0x5u],pldat.nm[0x6u],pldat.nm[0x7u],
+			pldat.nm[0x8u],pldat.nm[0x9u],pldat.nm[0xAu],pldat.nm[0xBu],
+			pldat.nm[0xCu],pldat.nm[0xDu],pldat.nm[0xEu],pldat.nm[0xFu],
+			pldat.nm[0x10u]
+		);
+		goto new;
+	}
+	printf("Loaded CMDR %s, %s @ %" PRIiLEAST64 "\n",pldat.nm,acm_shipnm(pldat.ship.id),pldat.tm);
+	*_pldat = pldat;
+	return;
+new:;
+	pldat.heat     = 0x120u; /* 288K */
+	pldat.pos.px   = 0x0u;
+	pldat.pos.py   = 0x0u;
+	pldat.pos.pz   = 0x0u;
+	pldat.pos.rx   = 0x0u;
+	pldat.pos.ry   = 0x0u;
+	pldat.pos.rz   = 0x0u;
+	pldat.pos.vx   = 0x0u;
+	pldat.pos.vy   = 0x0u;
+	pldat.pos.vz   = 0x0u;
+	pldat.ship.drv = acm_drv_h1;
+	pldat.ship.id  = acm_shipid_side;
+	pldat.tm       = 0x9679C2B40u; /* 3250-01-01T12:00:00Z */
+	zap_memcp(acm_dflplnm,acm_plnmlen + 0x1u,pldat.nm);
+	*_pldat = pldat;
+}
diff --git a/procyon/source/sav/sav.c b/procyon/source/sav/sav.c
new file mode 100644
index 0000000..d7301c7
--- /dev/null
+++ b/procyon/source/sav/sav.c
@@ -0,0 +1,35 @@
+#include <acm/sav.h>
+
+#include <flux.h>
+#include <stdio.h>
+
+void acm_sav(acm_pldat const * const _pldat) {
+	acm_log("Saving\n");
+	flux_err fluxerr;
+	flux_fil savfil;
+	fluxerr = flux_mkfil(&savfil,acm_dat.savloc,0644u);
+	if (fluxerr) {
+		if (fluxerr != flux_err_exist) {
+			fprintf(stderr,"Unable to create save file (\"%s\"): %s\n",acm_dat.savloc,flux_errstr(fluxerr));
+			acm_exit(acm_stat_err);
+		}
+		acm_log("Save file already exists, overwritting\n");
+		fluxerr = flux_op(&savfil,acm_dat.savloc,flux_md_wr,flux_disc);
+		if (fluxerr) {
+			fprintf(stderr,"Unable to open save file: %s\n",flux_errstr(fluxerr));
+			acm_exit(acm_stat_err);
+		}
+	}
+	{
+		uint_least64_t const savver = acm_savver;
+		fluxerr = flux_wr(savfil,&savver,sizeof (savver));
+	}
+	if (!fluxerr) {
+		fluxerr = flux_wr(savfil,_pldat,sizeof (*_pldat));
+	}
+	if (fluxerr) {
+		fprintf(stderr,"Unable to write to save file: %s\n",flux_errstr(fluxerr));
+		acm_exit(acm_stat_err);
+	}
+	flux_cl(savfil);
+}