Merge branch 'main' of github.com:tmck-code/tmck-code.github.io

README.md

@@ -4,6 +4,10 @@ my blog
 
 ---
 
+### [20241128 Comparing Lists or Matrices](articles/20241128_comparing_lists_or_matrices/20241128_comparing_lists_or_matrices.md)
+
+> _Functional approaches to compare sequences in Python_
+
 ### [20240829 Using JQ with style](articles/20240829_using_jq_with_style/20240829_using_jq_with_style.md)
 
 > _Colour/theme configuration for jq_

articles/20220718-csgo-surf/20220718-csgo-surf.md

@@ -32,34 +32,47 @@ I load this file when playing surf on public online servers (e.g. [Surf Heaven A
 
 > _see [my toggle keybind article](../20240126_cs_surf_-_toggle_all_saveloc_keybinds/20240126_cs_surf_-_toggle_all_saveloc_keybinds.md) for an explanation of how the CFG toggle keybind works!_
 
-- `_surf_online.cfg_`
+- _`surf_online.cfg`_
     ```java
+    // macros ---------------------------------------
+
+    // saveloc (bind by default)
+    exec surf_saveloc_on.cfg;
+    alias saveloc_on "exec surf_saveloc_on.cfg; alias saveloc_toggle saveloc_off";
+    alias saveloc_off "exec surf_saveloc_off.cfg; alias saveloc_toggle saveloc_on";
+    alias saveloc_toggle "saveloc_off";
+
+    // hud visibility (on by default)
+    alias hud_off "cl_draw_only_deathnotices 1; alias hud_toggle hud_on";
+    alias hud_on "cl_draw_only_deathnotices 0; alias hud_toggle hud_off";
+    alias hud_toggle "hud_off"
+
+    // keybinds -------------------------------------
+
     // turnbinds
     bind mouse1 +left;  // turn left with left mouse click
     bind mouse2 +right; // turn right with right mouse click
 
     // stage teleports
-    bind t "say !r";    // teleport to start of map
-    bind u "say !rs";   // teleport to start of stage
+    bind t "say !rs";  // teleport to start of map
+    bind z "say !r";   // teleport to start of stage
 
-    // saveloc (bind by default)
-    exec surf_saveloc_on.cfg;
-    alias saveloc_on "alias saveloc saveloc_off; exec surf_saveloc_on.cfg";
-    alias saveloc_off "alias saveloc saveloc_on; exec surf_saveloc_off.cfg";
-    alias saveloc "saveloc_off";
-    // toggle saveloc
-    bind . "saveloc";
-
-    alias "hud_toggle" "hud_off"
-    alias "hud_off" "cl_draw_only_deathnotices 1; alias hud_toggle hud_on";
-    alias "hud_on" "cl_draw_only_deathnotices 0; alias hud_toggle hud_off";
-    bind l "hud_toggle"
+    // toggles
+    bind . "saveloc_toggle"; // toggle saveloc
+    bind l "hud_toggle" // toggle hud visibility
 
     // info/debug commands
     bind 5 "say !tier" // show current map info
     bind 6 "say !pb"   // show personal best time
+
+    // map voting
+    bind , "say !nominate" // nominate next map
+    bind h "say /rtv"      // trigger vote for next map
+
+    // force window to 1440p resolution
+    mat_setvideomode 2560 1440 1
     ```
-- `_surf_saveloc_on.cfg_` 
+- _`surf_saveloc_on.cfg`_
     ```java
     // This file contains all SurfTimer saveloc keybinds
 
@@ -79,7 +92,7 @@ I load this file when playing surf on public online servers (e.g. [Surf Heaven A
 
     say "saveloc enabled";
     ```
-- `_surf_saveloc_off.cfg_`
+- _`surf_saveloc_off.cfg`_
     ```java
     // This file _disables_ all SurfTimer saveloc keybinds
 
@@ -97,4 +110,4 @@ I load this file when playing surf on public online servers (e.g. [Surf Heaven A
     unbind s;
 
     say "saveloc disabled";
-    ```
+    ```

articles/20220718-csgo-surf/surf_online.cfg

@@ -1,24 +1,37 @@
+// macros ---------------------------------------
+
+// saveloc (bind by default)
+exec surf_saveloc_on.cfg;
+alias saveloc_on "exec surf_saveloc_on.cfg; alias saveloc_toggle saveloc_off";
+alias saveloc_off "exec surf_saveloc_off.cfg; alias saveloc_toggle saveloc_on";
+alias saveloc_toggle "saveloc_off";
+
+// hud visibility (on by default)
+alias hud_off "cl_draw_only_deathnotices 1; alias hud_toggle hud_on";
+alias hud_on "cl_draw_only_deathnotices 0; alias hud_toggle hud_off";
+alias hud_toggle "hud_off"
+
+// keybinds -------------------------------------
+
 // turnbinds
 bind mouse1 +left;  // turn left with left mouse click
 bind mouse2 +right; // turn right with right mouse click
 
 // stage teleports
-bind t "say !r";    // teleport to start of map
-bind u "say !rs";   // teleport to start of stage
+bind t "say !rs";  // teleport to start of map
+bind z "say !r";   // teleport to start of stage
 
-// saveloc (bind by default)
-exec surf_saveloc_on.cfg;
-alias saveloc_on "alias saveloc saveloc_off; exec surf_saveloc_on.cfg";
-alias saveloc_off "alias saveloc saveloc_on; exec surf_saveloc_off.cfg";
-alias saveloc "saveloc_off";
-// toggle saveloc
-bind . "saveloc";
-
-alias "hud_toggle" "hud_off"
-alias "hud_off" "cl_draw_only_deathnotices 1; alias hud_toggle hud_on";
-alias "hud_on" "cl_draw_only_deathnotices 0; alias hud_toggle hud_off";
-bind l "hud_toggle"
+// toggles
+bind . "saveloc_toggle"; // toggle saveloc
+bind l "hud_toggle" // toggle hud visibility
 
 // info/debug commands
 bind 5 "say !tier" // show current map info
 bind 6 "say !pb"   // show personal best time
+
+// map voting
+bind , "say !nominate" // nominate next map
+bind h "say /rtv"      // trigger vote for next map
+
+// force window to 1440p resolution
+mat_setvideomode 2560 1440 1

articles/20241128_comparing_lists_or_matrices/20241128_comparing_lists_or_matrices.md

@@ -0,0 +1,88 @@
+# 20241128 Comparing Lists or Matrices
+
+Recently I needed to compare matrices (or "lists of lists"), counting the number of different items. I challenged myself to
+use the standard library instead of numpy.
+
+---
+
+These matrices have 2 differing values:
+
+```python
+m1 = [(0,0),
+      (0,1),]
+
+m2 = [(0,1),
+      (0,0),]
+```
+
+Firstly, it would be easiest (for me) if I somehow transformed each matrix into a single sneuence of numbers.
+This can be done using `chain` from the `itertools` standard library tools, which is one of my favourite and probably overused hacks.
+
+```python
+from itertools import chain
+
+list(chain.from_iterable(m1))
+# [0, 0, 0, 1]
+
+list(chain.from_iterable(m2))
+# [0, 1, 0, 0]
+```
+
+Using `zip`, we can iterate through both lists and compare each pair of elements:
+
+```python
+list(zip(
+    chain.from_iterable(m1),
+    chain.from_iterable(m2)
+))
+# [(0, 0), (0, 1), (0, 0), (1, 0)]
+```
+
+Next, we need to compare each pair of elements, and I thought of using the `operator` functions, as there is `ne` which could be used to compare elements.
+
+The documentation for `ne` is:
+
+> `ne(a, b, /)` *Same as a != b.*
+
+I want to avoid using a lambda as it is both icky and slow, e.g.
+
+```python
+list(map(
+    lambda x: x[0]==x[1],
+    zip(
+        chain.from_iterable(m1),
+        chain.from_iterable(m2)
+    )
+))
+# [True, False, True, False]
+```
+
+I can use `starmap` to take each pair, and pass it to `operator.eq` as `*args` (hence the name "starmap"! very cool 😎)
+
+```python
+from itertools import starmap
+
+list(starmap(
+    operator.ne,
+    zip(
+        chain.from_iterable(m1),
+        chain.from_iterable(m2)
+    )
+))
+# [True, False, True, False]
+```
+
+And finally, `sum` can be used to count the number of `True`/truthy results
+
+```python
+sum(starmap(
+    operator.ne,
+    zip(
+        chain.from_iterable(m1),
+        chain.from_iterable(m2)
+    )
+))
+# 2
+```
+
+> *Note: counting identical elements could be done easily by using `operator.eq` instead of `operator.ne`*