Make seed customizable

Author: rexim

Diff for: src/randomart.c

@@ -13,8 +13,8 @@
 #include "arena.h"
 #include "ffmpeg.h"
 
-#define WIDTH 800
-#define HEIGHT 600
+#define WIDTH 1600
+#define HEIGHT 900
 #define FPS 60
 
 static Arena static_arena = {0};
@@ -711,9 +711,24 @@ int main(int argc, char **argv)
     const char *program_name = shift(argv, argc);
 
     int depth = 40;
+    int seed = time(0);
+
+    while (argc > 0) {
+        const char *flag = argv[0];
+        if (strcmp(flag, "-seed") == 0) {
+            UNUSED(shift(argv, argc));
+            if (argc <= 0) {
+                nob_log(ERROR, "No argument is provided for %s", flag);
+                return 1;
+            }
+            seed = atoi(shift(argv, argc));
+        } else {
+            break;
+        }
+    }
 
     if (argc <= 0) {
-        nob_log(ERROR, "Usage: %s <command>", program_name);
+        nob_log(ERROR, "Usage: [options] %s <command>", program_name);
         nob_log(ERROR, "No command is provided");
         return 1;
     }
@@ -728,12 +743,18 @@ int main(int argc, char **argv)
         }
         const char *output_path = shift(argv, argc);
 
+        if (argc > 0) {
+            nob_log(ERROR, "Usage: %s %s <output-path>", program_name, command_name);
+            nob_log(ERROR, "%s accepts only 1 argument", command_name);
+            return 1;
+        }
+
         Grammar grammar = {0};
         int entry = default_grammar(&grammar);
 
-        int seed = time(0);
         srand(seed);
-        nob_log(INFO, "SEED: %d\n", seed);
+        nob_log(INFO, "SEED: %d", seed);
+        nob_log(INFO, "DEPTH: %d", depth);
 
         Node *f = gen_rule(grammar, entry, depth);
         if (!f) {
@@ -749,12 +770,17 @@ int main(int argc, char **argv)
     }
 
     if (strcmp(command_name, "gui") == 0) {
+        if (argc > 0) {
+            nob_log(ERROR, "%s does not accept any arguments", command_name);
+            return 1;
+        }
+
         Grammar grammar = {0};
         int entry = default_grammar(&grammar);
 
-        int seed = time(0);
         srand(seed);
-        nob_log(INFO, "SEED: %d\n", seed);
+        nob_log(INFO, "SEED: %d", seed);
+        nob_log(INFO, "DEPTH: %d", depth);
 
         Node *f = gen_rule(grammar, entry, depth);
         if (!f) {
@@ -782,7 +808,7 @@ int main(int argc, char **argv)
             .format = PIXELFORMAT_UNCOMPRESSED_R8G8B8A8,
         };
         float time = 0.0f;
-        float max_render_length = 2*PI;
+        float max_render_length = (2*PI)*4;
         bool pause = false;
         while (!WindowShouldClose()) {
             float w = GetScreenWidth();