implement basic game

.gitignore

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+# Emacs backup files (e.g., filename.txt~)
+*~
+
+# Emacs auto-save files (e.g., #filename.txt#)
+\#*\#
+
+# Emacs lock files / crash recovery links (e.g., .#filename.txt)
+.\#*
+
+*.out

README.md

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+# Typing game
+Simple game to type words from a default word bank.
+
+This is a demonstration of using `raylib` to create a simple rendering loop, handle input events, and manage game state.
+
+![Screenshot](screenshot.png)

main.c

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+#include <raylib.h>
+#include <stdio.h>
+#include <string.h>
+
+char *word_bank[] = {
+  "hypothesis",
+  "science",
+  "usurp",
+  "conditional",
+  "passionate",
+  "orion",
+  NULL // sentinel value marking end
+};
+
+#define WINDOW_HEIGHT 500
+#define WINDOW_WIDTH 700
+#define CHAR_SPACING 40
+
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+
+int main(int argc, char *argv[]) {
+  char **curr_word = word_bank;
+  unsigned short curr_letter_index = 0;
+  unsigned short wins = 0;
+
+  InitWindow(WINDOW_WIDTH, WINDOW_HEIGHT, "Typing game");
+  
+  while (!WindowShouldClose()) {
+    char buf[2] = {'c', '\0'};
+    size_t word_len = strlen(*curr_word);
+    
+    int k = 0;
+    const char *key_name;
+    // process queued key events
+    while ((k = GetKeyPressed()) != 0) {
+      key_name = GetKeyName(k);
+
+      char c = (*curr_word)[curr_letter_index];
+      sprintf(buf, "%c\0", c);
+
+      if (key_name != NULL &&
+	  strcmp(key_name, buf) == 0) {
+	if (curr_letter_index < word_len - 1) { // next letter
+	  curr_letter_index++;
+	} else { // next word
+	  if (*(curr_word + 1) == NULL) { // wrap around
+	    curr_word = word_bank;
+	  } else {
+	    curr_word++;
+	    wins++;
+	  }
+	  curr_letter_index = 0;
+	}
+      }
+    }
+
+    // render
+    BeginDrawing();
+    ClearBackground(WHITE);
+    DrawText(*curr_word, 10, 10, 20, BLACK);
+    
+    int x = (WINDOW_WIDTH / 2) - (CHAR_SPACING * (word_len / 2));
+    int y = WINDOW_HEIGHT / 2;
+
+    for (int i = 0; i < word_len; i++) {
+      char c = (*curr_word)[i];
+      
+      sprintf(buf, "%c\0", c);
+      
+      Color color;
+      if (i == curr_letter_index) {
+	color = GOLD;
+      } else if (i < curr_letter_index) {
+	color = GRAY;
+      } else {
+	color = DARKGRAY;
+      }
+		 
+      DrawText(buf, x, y, 50, color);
+      x += CHAR_SPACING;
+    }
+
+    DrawFPS(WINDOW_WIDTH - 100, 10); // top right
+
+    char wins_text[20];
+    snprintf(wins_text, 20, "%d wins", wins);
+    DrawText(wins_text, WINDOW_WIDTH - 100, WINDOW_HEIGHT - 20, 20, GRAY);
+    EndDrawing();
+  }
+  
+  CloseWindow();
+
+  return 0;
+}