scorer

1 files changed, 91 insertions, 0 deletions

diff --git a/score/main.cpp b/score/main.cpp
new file mode 100644
index 0000000..1b29107
--- /dev/null
+++ b/score/main.cpp
@@ -0,0 +1,91 @@
+#include <lib94/lib94.hpp>
+#include <iostream>
+#include <fstream>
+
+[[noreturn]] void usage(const char *argv0) {
+  std::cerr << "usage: " << argv0 << " <first warrior> <second warrior> <number of rounds> <steps until tie>\n";
+  exit(1);
+}
+
+int main(int argc, const char **argv) {
+  if (argc != 5)
+    usage(argv[0]);
+
+  unsigned round_count, steps_until_tie;
+
+  try {
+    round_count = std::stoul(argv[3]);
+    steps_until_tie = std::stoul(argv[4]);
+  }
+  catch (const std::exception &e) {
+    usage(argv[0]);
+  }
+
+  std::ifstream file1(argv[1]);
+  std::ifstream file2(argv[2]);
+
+  if (!file1 || !file2)
+    usage(argv[0]);
+
+  std::string source1(std::istreambuf_iterator<char>(file1), {});
+  std::string source2(std::istreambuf_iterator<char>(file2), {});
+
+  file1.close();
+  file2.close();
+
+  auto w1 = lib94::compile_warrior(source1);
+  auto w2 = lib94::compile_warrior(source2);
+
+  if (std::holds_alternative<std::string>(w1)) {
+    std::cerr << "error compiling " << argv[1] << ": " << std::get<std::string>(w1) << '\n';
+    return 1;
+  }
+
+  if (std::holds_alternative<std::string>(w2)) {
+    std::cerr << "error compiling " << argv[2] << ": " << std::get<std::string>(w2) << '\n';
+    return 1;
+  }
+
+  const lib94::warrior *ws[2];
+  ws[0] = std::get<lib94::warrior *>(w1);
+  ws[1] = std::get<lib94::warrior *>(w2);
+
+  unsigned w1_wins = 0;
+  unsigned w2_wins = 0;
+
+  lib94::seed_prng(time(NULL));
+
+  for (unsigned round_number = 0; round_number < round_count; ++round_number) {
+
+    lib94::clear_core({
+      .op = lib94::DAT, .mod = lib94::F,
+      .amode = lib94::DIRECT, .bmode = lib94::DIRECT,
+      .anumber = 0, .bnumber = 0
+    });
+
+    lib94::init_round(ws, 2);
+
+    for (unsigned step_number = 0; step_number < steps_until_tie; ++step_number) {
+
+      const lib94::warrior *w = lib94::single_step();
+
+      if (w == ws[0]) {
+        ++w2_wins;
+        break;
+      }
+
+      if (w == ws[1]) {
+        ++w1_wins;
+        break;
+      }
+
+    }
+
+  }
+
+  std::cout << round_count << " rounds completed\n";
+  std::cout << w1_wins << " wins, " << w2_wins << " losses\n";
+  std::cout << "score " << (int)w1_wins - (int)w2_wins << '\n';
+
+  return 0;
+}