Extended Custom Instrument Limit from 9 to 18

Added new sprites/icons for these instruments, and modified current custom instrument sprites.

Author: ShinkoNet

scripts/draw_block/draw_block.gml

@@ -9,7 +9,7 @@ salpha = argument5
 
 index = ds_list_find_index(instrument_list, ins)
 if (ins.user || !use_colored)
-    index += 16
+    index = 32
 if(theme=2) draw_sprite_ext(spr_altblock, index, xx, yy, 1, 1, 0, -1, alpha)
 else draw_sprite_ext(spr_block, index, xx, yy, 1, 1, 0, -1, alpha)
 if (ins.user || key < 33 || key > 57) {

scripts/draw_window_instruments/draw_window_instruments.gml

@@ -34,7 +34,7 @@ popup_set_window(x1 + 13, y1 + 67, 194, 20, "The name of this instrument.")
 draw_text(x1 + 18, y1 + 70, "Name")
 if (draw_button2(x1 + 12, y1 + 318, 80, "Import")) load_instruments("")
 c = 0
-if (draw_button2(x1 + 256, y1 + 318, 80, "Add", user_instruments >= 9) && wmenu = 0) {
+if (draw_button2(x1 + 256, y1 + 318, 80, "Add", user_instruments >= 18) && wmenu = 0) {
     changed = true
     insselect = ds_list_size(instrument_list)
     ds_list_add(instrument_list, new_instrument("Custom instrument #" + string(user_instruments + 1), "", true))

scripts/icons_init/icons_init.gml

@@ -37,6 +37,15 @@ enum icons {
     CUSTOM_INS_7,
     CUSTOM_INS_8,
     CUSTOM_INS_9,
+    CUSTOM_INS_10,
+    CUSTOM_INS_11,
+    CUSTOM_INS_12,
+    CUSTOM_INS_13,
+    CUSTOM_INS_14,
+    CUSTOM_INS_15,
+    CUSTOM_INS_16,
+    CUSTOM_INS_17,
+    CUSTOM_INS_18,
     UNDO_INACTIVE,
     UNDO,
     REDO_INACTIVE,