feat: 0 hotkey to reset everything

DEVELOPMENT.md

@@ -113,7 +113,7 @@ make -f Makefile.dev release-arch
   - [x] Documentation in default config file
   - [x] Clone "shaders" and config in system path at setup
   - [ ] Minimal sample shaders
-  - [ ] Hotkey `0` to reset everything
+  - [x] Hotkey `0` to reset everything
   - [x] Printable PDF of default scr/fx
   - [x] Add NanoKontrol setup file
   - [x] Find and fix opengl errors 0500 ?

README.md

@@ -159,7 +159,8 @@ make install
 When running, the following hotkeys are available:
 
 * <kbd>Esc</kbd>: Exit window
-* <kbd>R</kbd>: Randomize shader state
+* <kbd>R</kbd>: Randomize internal values
+* <kbd>0</kbd>: Reset internal values to 0
 * <kbd>D</kbd>: Demo mode On/Off
 * <kbd>A</kbd>: Auto Random mode On/Off
 

src/forge.c

@@ -125,8 +125,14 @@ static void key_callback(Window *window, int key,
     window_close(window);
   } else if (window_char_key(key, action, 82)) {
     // R: randomize
-    log_info("[R] Randomizing...");
+    log_info("[R] Randomized");
     state_randomize(context, &project.state_config);
+    state_apply(context, &project.state_config, &midi);
+  } else if (window_char_key(key, action, 48)) {
+    // 0: reset
+    log_info("[0] Reset");
+    state_reset(context);
+    state_apply(context, &project.state_config, &midi);
   } else if (window_char_key(key, action, 68)) {
     // D: demo on/off
     log_info((context->demo ? "[D] Demo OFF" : "[D] Demo ON"));

src/state.c

@@ -279,6 +279,13 @@ void state_apply_event(SharedContext *context, const StateConfig *state_config,
   }
 }
 
+void state_apply(SharedContext *context, const StateConfig *state_config,
+                 const MidiDevice *midi) {
+  if (!midi->error) {
+    update_values(context, state_config, midi);
+  }
+}
+
 bool state_background_write(SharedContext *context,
                             const StateConfig *state_config,
                             const MidiDevice *midi) {
@@ -322,6 +329,8 @@ bool state_background_write(SharedContext *context,
 
     if (context->auto_random && change && !last_change) {
       state_randomize(context, state_config);
+
+      state_apply(context, state_config, midi);
     }
 
     last_change = change;
@@ -403,7 +412,17 @@ void state_init(SharedContext *context, const StateConfig *state_config,
   }
 }
 
+void state_reset(SharedContext *context) {
+  memset(context->values, 0, sizeof(context->values));
+  memset(context->state.values, 0, sizeof(context->state.values));
+}
+
 void state_randomize(SharedContext *context, const StateConfig *state_config) {
+  for (unsigned int i = 0; i < state_config->midi_codes.length; i++) {
+    context->values[i][0] = (float)rand_uint(MIDI_MAX) / MIDI_MAX;
+    context->values[i][1] = (float)rand_uint(MIDI_MAX) / MIDI_MAX;
+    context->values[i][2] = (float)rand_uint(MIDI_MAX) / MIDI_MAX;
+  }
   for (unsigned int i = 0; i < context->state.length; i++) {
     context->state.values[i] = rand_uint(state_config->state_max);
   }

src/state.h

@@ -17,8 +17,13 @@ void state_init(SharedContext *context, const StateConfig *state_config,
                 bool demo, bool auto_random, unsigned int base_tempo,
                 const char *state_file, bool load_state);
 
+void state_reset(SharedContext *context);
+
 void state_randomize(SharedContext *context, const StateConfig *state_config);
 
+void state_apply(SharedContext *context, const StateConfig *state_config,
+                 const MidiDevice *midi);
+
 void state_save(const SharedContext *context, const StateConfig *state_config,
                 const char *state_file);