initial init, huffman and demoheader

1 files changed, 44 insertions, 0 deletions

diff --git a/src/demo.c b/src/demo.c
new file mode 100644
index 0000000..0be8611
--- /dev/null
+++ b/src/demo.c
@@ -0,0 +1,44 @@
+#include "../inc/demo.h"
+
+#include <stdio.h>
+
+int reverseint(const unsigned char in[4])
+{
+    return (in[0] << 24) | (in[1] << 16) | (in[2] << 8) | in[3];
+}
+
+int readdemoheader(FILE *fp, demoheader *dh)
+{
+    if (fscanf(fp,"TWDEMO%*c%c", &dh->version) != 1)
+        return -1;
+    if (fscanf(fp, "%64c", dh->netversion) != 1)
+        return -2;
+    if (fscanf(fp, "%64c", dh->mapname) != 1)
+        return -3;
+    if (fread(dh->mapsize, 1, 4, fp) != 4)
+        return -4;
+    if (fread(dh->mapcrc, 1, 4, fp) != 4)
+        return -5;
+    if (fscanf(fp, "%8c", dh->type) != 1)
+        return -6;
+    if (fread(dh->length, 1, 4, fp) != 4)
+        return -7;
+    if (fscanf(fp, "%20c", dh->timestamp) != 1)
+        return -8;
+    printf("version: %hhu\n", dh->version);
+    printf("net_version: %s\n", dh->netversion);
+    printf("mapname: %s\n", dh->mapname);
+    printf("mapsize: %i\n", reverseint(dh->mapsize));
+    printf("mapcrc: %i\n", reverseint(dh->mapcrc));
+    printf("type: %s\n", dh->type);
+    printf("length: %i\n", reverseint(dh->length));
+    printf("timestamp: %s\n", dh->timestamp);
+    return 1;
+}
+
+int readdemotimeline(FILE *fp, demotimeline *dt)
+{
+    if (fscanf(fp, "%260c", dt->data) != 1)
+        return -1;
+    return 1;
+}
\ No newline at end of file