Fix/show flat notes

scripts/draw_notechart/draw_notechart.gml

@@ -1,11 +1,11 @@
 function draw_notechart(argument0, argument1, argument2, argument3) {
-	// draw_notechart(x, y, key, sharp)
-	var x1, xx, yy, key, sharp, a;
+	// draw_notechart(x, y, key, accidental)
+	var x1, xx, yy, key, accidental, a;
 	x1 = argument0
 	xx = median(0, x1 - 32, rw - 320)
 	yy = argument1
 	key = argument2
-	sharp = argument3
+	accidental = argument3
 	draw_sprite(spr_notechart, 0 + 3 * theme, xx, yy - 320 + 1)
 	draw_sprite(spr_notechart, (1 + (x1 > rw - 250)) + 3 * theme, x1 - 16 * (x1 > rw - 250), yy)
 
@@ -21,7 +21,8 @@ function draw_notechart(argument0, argument1, argument2, argument3) {
 	draw_line(xx + 32, yy - 250 + 16 * 6, xx + 32, yy - 250 + 16 * 10)
 	draw_sprite(spr_Gclef, 0, xx + 58, yy - 250 + 16 * 3)
 	draw_sprite(spr_Fclef, 0, xx + 48, yy - 250 + 16 * 7)
-	draw_sprite(spr_note, sharp + 2 * (key > 22), xx + 152, yy - 250 - 8 * (key - 33))
+	if (keynames_flat) draw_sprite(spr_note_flat, accidental + 2 * (key > 22), xx + 152, yy - 250 - 8 * (key - 33))
+	else draw_sprite(spr_note_sharp, accidental + 2 * (key > 22), xx + 152, yy - 250 - 8 * (key - 33))
 	if (key > 22 && key < 25) {
 	    draw_set_alpha(0.25)
 	    draw_line(xx + 122, yy - 250 + 16 * 5, xx + 180, yy - 250 + 16 * 5)

scripts/draw_piano/draw_piano.gml

@@ -24,7 +24,7 @@ function draw_piano(argument0, argument1, argument2, argument3) {
 	        k2 = show_keyboard && piano_key[c2] > 0
 	        if (window = 0 && mouse_rectangle(xx + 39 * a, yy, 39, 128)) {
 	            if (!mouse_rectangle(xx + 39 * a - 12, yy - 7, 25, 71) && (!mouse_rectangle(xx + 39 * a + 27, yy - 7, 25, 71) || (a = k - 1 || c = 1 || c = 4))) {
-	                if (show_notechart && c2 > 6 && c2 < 69 && playing = 0 && !isplayer) draw_notechart(xx + 39 * a + 18, yy - 32, startkey + a, 0)
+	                if (show_notechart && c2 > 6 && c2 < 69 && playing = 0 && !isplayer) draw_notechart(xx + 39 * a + 18, yy - 32, startkey + a, 0) //handle all white keys except C and F
 	                if (mouse_check_button_pressed(mb_right) && show_keyboard) key_edit = c2
 	                // Check mouse clicks
 	                t = key_click[c2]
@@ -42,8 +42,9 @@ function draw_piano(argument0, argument1, argument2, argument3) {
 	            key_click[c2] = 0
 	        }
 	        if (window = 0 && mouse_rectangle(xx + 39 * a - 12, yy - 7, 25, 71)) {
-	            if (show_notechart && c1 > 6 && c1 < 70 && playing = 0 && !isplayer) draw_notechart(xx + 39 * a - 12 + 12, yy - 32, startkey + a - 1, 1)
-	            if (mouse_check_button_pressed(mb_right) && show_keyboard) key_edit = c1
+	            if (show_notechart && !keynames_flat && c1 > 6 && c1 < 70 && playing = 0 && !isplayer) draw_notechart(xx + 39 * a - 12 + 12, yy - 32, startkey + a - 1, 1) //handles all sharps
+				if (show_notechart && keynames_flat && c1 > 5 && c1 < 69 && playing = 0 && !isplayer) draw_notechart(xx + 39 * a - 12 + 12, yy - 32, startkey + a, 1) //handles all flats
+				if (mouse_check_button_pressed(mb_right) && show_keyboard) key_edit = c1
 	            t = key_click[c1]
 	            key_click[c1] = mouse_check_button(mb_left)
 	            if (t = 0 && key_click[c1]) {
@@ -86,7 +87,7 @@ function draw_piano(argument0, argument1, argument2, argument3) {
 	        k1 = (show_keyboard && piano_key[c1] > 0)
 	        if (window = 0 && mouse_rectangle(xx + 39 * a, yy, 39, 128)) {
 	            if (!mouse_rectangle(xx + 39 * a + 27, yy - 7, 25, 71) || (a = k - 1 || c = 1 || c = 4)) {
-	                if (show_notechart && c1 > 6 && c1 < 69 && playing = 0) draw_notechart(xx + 39 * a + 18, yy - 32, startkey + a, 0)
+	                if (show_notechart && c1 > 6 && c1 < 69 && playing = 0) draw_notechart(xx + 39 * a + 18, yy - 32, startkey + a, 0) //handles C and F
 	                if (mouse_check_button_pressed(mb_right) && show_keyboard) key_edit = c1
 	                t = key_click[c1]
 	                key_click[c1] = mouse_check_button(mb_left)