Merge 'In-game debug functions' (OoTRandomizer#1970)

ASM/README.md

@@ -53,3 +53,20 @@ To generate symbols for the Project64 debugger, use the `--pj64sym` option:
     python build.py --pj64sym 'path_to_pj64/Saves/THE LEGEND OF ZELDA.sym'
 
 You'll need to disable `Unique Game Save Directory` in Project64 for these to work without copying them into each unique save folder. Remember that some changes in code will not be reflected in an existing save, and they need to be deleted and a new save created with this setting disabled.
+
+--------------------------------------------------------------------------
+
+How to use the Debug mode: 
+- First put the DEBUG_MODE variable at 1 in debug.h.
+- You will then have access to a hidden menu with the following options:
+  - Instant warps to Dungeons, Bosses or Overworld locations
+  - Item inventory edits
+  - Instant age switch with the current location kept
+  - Bunny Hood applied on
+The menu will appear if you press either L+R or Dpad-Up according to what you set for the menu_not_on_dup variable in debug.c.
+Use Dpad-Left/Dpad-Right and A/B to navigate it.
+The L Button will also allow you to levitate.
+The warps and items are easily customizable with the code at the top of debug.c.
+- Additionally, you can call functions to print numbers on screen, to help you debug new features.
+Call either draw_debug_int or draw_debug_float in your code, with the first argument being the number wanted to be displayed, and the 
+second argument its place on the screen (up to 10 values).

ASM/build.py

@@ -29,7 +29,7 @@
 tools_bin_dir = os.path.join(tools_dir, 'bin')
 # Makes it possible to copy the full toolchain prefix into the "tools" directory
 n64_bin_dir = os.path.join(tools_dir, "n64", "bin")
-os.environ['PATH'] = tools_dir + tools_bin_dir + n64_bin_dir + os.pathsep + os.environ['PATH']
+os.environ['PATH'] = os.pathsep.join([tools_dir, tools_bin_dir, n64_bin_dir, os.environ['PATH']])
 
 run_dir = root_dir