base-evs.py

1 files changed, 38 insertions, 3 deletions

diff --git a/Replace-stat-experience-with-EVs.md b/Replace-stat-experience-with-EVs.md
index c14e16c..c98374b 100644
--- a/Replace-stat-experience-with-EVs.md
+++ b/Replace-stat-experience-with-EVs.md
@@ -154,11 +154,9 @@ Finally, edit all 251 [data/pokemon/base_stats/\*.asm](../tree/master/data/pokem
  	db CHIKORITA ; 152
 
  	db  45,  49,  65,  45,  49,  65
++	evs  0,   0,   0,   0,   0,   1
  	;   hp  atk  def  spd  sat  sdf
 
-+	evs  0,   0,   0,   0,   0,   1
-+	;   hp  atk  def  spd  sat  sdf
-+
  	db GRASS, GRASS ; type
  	db 45 ; catch rate
  	db 64 ; base exp
@@ -176,6 +174,43 @@ Finally, edit all 251 [data/pokemon/base_stats/\*.asm](../tree/master/data/pokem
  	...
 ```
 
+You can do this automatically with a Python script. Save this as **base-evs.py** in the same directory as main.asm:
+
+```python
+import glob
+
+filenames = glob.glob('data/pokemon/base_stats/*.asm')
+
+for filename in filenames:
+
+	print('Update', filename)
+
+	with open(filename, 'r', encoding='utf8') as file:
+		lines = file.readlines()
+
+	with open(filename, 'w', encoding='utf8') as file:
+		for line in lines:
+			if line in ['\tdb 100 ; unknown 1\n', '\tdb 5 ; unknown 2\n']:
+				continue
+			if line == '\t;   hp  atk  def  spd  sat  sdf\n':
+				file.write('\tevs  0,   0,   0,   0,   0,   0\n')
+			file.write(line)
+```
+
+Then run `python3 base-evs.py`, just like running `make`. It should output:
+
+```
+$ python3 base-evs.py
+Update data/pokemon/base_stats/abra.asm
+...
+Update data/pokemon/base_stats/zubat.asm
+```
+
+(If it gives an error "`python3: command not found`", you need to install Python 3. It's available as the `python3` package in Cygwin.)
+
+That will format all the base data files correctly, but with zero EV yields. You'll have to fill in the correct values yourself.
+
+
 ## 3. Gain EVs from winning battles
 
 Edit [engine/battle/core.asm](../blob/master/engine/battle/core.asm):