1 files changed, 55 insertions, 2 deletions

diff --git a/src/sequencer.c b/src/sequencer.c
index 1447056..fccc42a 100644
--- a/src/sequencer.c
+++ b/src/sequencer.c
@@ -1,3 +1,5 @@
+#include "bitmap.h"
+
 // Positioning parameters.
 #define SEQ_TRIG_POS_X 45
 #define SEQ_TRIG_POS_Y 50
@@ -493,7 +495,53 @@ init_sequencer_sprites(void) {
     init_sprite_pal(16, COLOR_CYAN);
     init_sprite_pal(32, COLOR_RED);
     init_sprite_pal(48, COLOR_GREY);
-    init_sprites(0);
+    init_sprites(512);
+
+    // draw_rect(SEQ_ENV_POS_X-1,
+    //         SEQ_ENV_POS_Y-1,
+    //         SEQ_ENV_POS_X + 62 + 1,
+    //         SEQ_ENV_POS_Y + 16 + 1,
+    //         COLOR_WHITE);
+
+    // Clear wave drawing
+    draw_fill_rect(SEQ_ENV_POS_X,
+            SEQ_ENV_POS_Y,
+            SEQ_ENV_POS_X + 62,
+            SEQ_ENV_POS_Y + 16,
+            COLOR_BLACK);
+
+    // DEBUG: Testing line drawing
+    // draw_line(
+    //         SEQ_ENV_POS_X,
+    //         SEQ_ENV_POS_Y,
+    //         SEQ_ENV_POS_X + 62,
+    //         SEQ_ENV_POS_Y + 16,
+    //         COLOR_RED);
+
+    // NOTE: Trying to draw this pattern.
+    // 0xEFDEBC89
+    // 0x98CBEDFE
+    // 0x10214376
+    // 0x67341201
+    u8 sine_wave[] = {
+        0x89, 0xBC, 0xDE, 0xEF,
+        0xFE, 0xED, 0xCB, 0x98,
+        0x76, 0x43, 0x21, 0x10,
+        0x01, 0x12, 0x34, 0x67,
+    };
+    // DEBUG: Drawing each byte.
+    int x = SEQ_ENV_POS_X;
+    int y = SEQ_ENV_POS_Y + 16;
+    for (size_t i = 0; i < 16; ++i) {
+        u8 byte = sine_wave[i];
+        u8 first = (byte >> 4) & 0xF;
+        u8 second = byte & 0xF;
+        FRAMEBUFFER[y - first][x + i * 4] = COLOR_RED;
+        FRAMEBUFFER[y - first][x + i * 4 + 1] = COLOR_RED;
+        FRAMEBUFFER[y - second][x + i * 4 + 2] = COLOR_RED;
+        FRAMEBUFFER[y - second][x + i * 4 + 3] = COLOR_RED;
+    }
+
 
     // Sprite note names.
     size_t sprite_id = load_packed_sprite_data(&sprite_note_names, 2, 73);
@@ -828,7 +876,7 @@ update_sequencer_sprites(void) {
     // 000-015: Step note names.
     for (size_t i = 0; i < 16; ++i) {
         // Each note name is made of 2 8x8 tiles (16x8).
-        size_t base_tile = sequences[channel_selection_loc][i].note * 2;
+        size_t base_tile = seq_sprites[i].base_tile + sequences[channel_selection_loc][i].note * 2;
 
         // TODO: Show the note name if is within the duration, hide when trigger
         // is off or duration of previous note was cut short. If not triggered
@@ -964,6 +1012,11 @@ update_sequencer_sprites(void) {
             seq_sprites[56].obj_attr_2 = base_tile | OBJ_PAL_BANK(3);
         }
     }
+
+    // DEBUG: Hide all parameter control sprites for now.
+    for (size_t i = 34; i <= 50; ++i) {
+        seq_sprites[i].obj_attr_0 = seq_sprites[i].obj_attr_0 | OBJ_HIDDEN;
+    }
 }
 
 void