add action erease

C/actions.cpp

@@ -0,0 +1,3 @@
+void erease() {
+
+}

C/inputs.cpp

@@ -17,6 +17,9 @@ void inputActions(SDL_Event e) {
       play = !play;
       step = 0;
       break;
+    case SDLK_e:
+      setErease = true;
+      break;
     default:
       break;
   }

C/main.cpp

@@ -19,12 +19,14 @@ SDL_Renderer* renderer;
 int pattern[PATTERN_ROWS][PATTERN_COLS];
 int matrix[] = {PATTERN_ROWS, PATTERN_COLS};
 bool play = false;
+bool setErease = false;
 int step = 0;
 
 #include "draw.cpp"
 #include "players.cpp"
 #include "loaders.cpp"
 #include "inputs.cpp"
+#include "actions.cpp"
 
 int main(int argc, char** argv) {
 
@@ -67,8 +69,6 @@ int main(int argc, char** argv) {
           break;
         default:
           break;
-
-
       }
 
       if( !done ) { gotEvent = SDL_PollEvent(&event); }
@@ -80,7 +80,6 @@ int main(int argc, char** argv) {
     }
   }
 
-
   for( int i = 0; i < NUM_WAVEFORMS; i++ ) {
     Mix_FreeChunk(samples[i]);
   }

C/players.cpp

@@ -15,11 +15,18 @@ void playPattern(int *timer, int duration, int *step) {
 }
 
 void setSample(int sample, int step) {
-  pattern[sample-1][step-1] = 1;
-  for(int i=0; i<matrix[0]; i++) {
-    for(int y=0; y<matrix[1]; y++) {
-      printf("%d ", pattern[i][y]);
+  if(setErease) {
+    for(int i=0; i<matrix[1]; i++) {
+      pattern[sample-1][i] = 0;
+    }
+    setErease = false;
+  } else {
+    pattern[sample-1][step-1] = 1;
+    for(int i=0; i<matrix[0]; i++) {
+      for(int y=0; y<matrix[1]; y++) {
+        printf("%d ", pattern[i][y]);
+      }
+      printf("\n");
     }
-    printf("\n");
   }
 }

README.md

@@ -1 +1,16 @@
-sonquencer
+# Sonquencer
+
+#### Keys (C version)
+
+| Key  |               |                                          |
+| ---- | ------------- | ---------------------------------------- |
+| 1    | Play sample 1 | Set the sample when sequencer is playing |
+| 2    | Play sample 2 | Set the sample when sequencer is playing |
+| 3    | Play sample 3 | Set the sample when sequencer is playing |
+| 4    | Play sample 4 | Set the sample when sequencer is playing |
+| P    | Play/Stop     | Play/Stop Sequencer                      |
+|      |               |                                          |
+|      |               |                                          |
+|      |               |                                          |
+|      |               |                                          |
+