From 9ba1ca0216606290c4524ebe7ae8073280b5d6d6 Mon Sep 17 00:00:00 2001
From: Strangedusk <strangealt@protonmail.com>
Date: Wed, 20 Jul 2022 20:17:31 +0200
Subject: [PATCH] Main Menu Action struct implementation

---
 src/Action.zig   |  3 +--
 src/MainMenu.zig | 63 +++++++++++++++++++++++++++++++-----------------
 2 files changed, 42 insertions(+), 24 deletions(-)

diff --git a/src/Action.zig b/src/Action.zig
index 32975af..e57319f 100644
--- a/src/Action.zig
+++ b/src/Action.zig
@@ -1,10 +1,9 @@
-const Game = @import("Game.zig");
 const Self = @This();
 
 activate: bool = false,
 holding: bool = false,
 code: u8, // SDL Keycode
-callback: *const anyopaque,
+callback: *const anyopaque, // MUST be a function with void return
 
 pub fn init(code: u8, callback: *const anyopaque) Self {
     return Self{
diff --git a/src/MainMenu.zig b/src/MainMenu.zig
index 3b39fd6..2d68c82 100644
--- a/src/MainMenu.zig
+++ b/src/MainMenu.zig
@@ -5,9 +5,18 @@ const MenuSelection = @import("MenuSelection.zig");
 const MenuTab = @import("MenuTab.zig");
 
 const State = @import("flow.zig").State;
+const Action = @import("Action.zig");
 
 const Self = @This();
 
+action_list: [3]Action = .{
+    // Action.init(SDL.SDL_SCANCODE_RIGHT, actionRight), // Right
+    // Action.init(SDL.SDL_SCANCODE_LEFT, actionLeft), // Left
+    Action.init(SDL.SDL_SCANCODE_DOWN, actionSelDown), // Down
+    Action.init(SDL.SDL_SCANCODE_UP, actionSelUp), // Down
+    Action.init(SDL.SDL_SCANCODE_RETURN, actionSelect), // Down
+},
+
 tab_list: [2]MenuTab = [2]MenuTab{
     MenuTab.init("1P", &.{
         MenuSelection.init("Play", play),
@@ -28,41 +37,46 @@ state: State = State.main_menu,
 holding_down: bool = false,
 holding_enter: bool = false,
 
-fn getSel(self: *Self) *MenuSelection {
-    return &self.tab_list[self.tab].contents[self.sel];
-}
-
-fn getTab(self: *Self) *MenuTab {
-    return &self.tab_list[self.tab];
-}
+pos_x: i32,
+pos_i: i32,
 
 pub fn init() Self {
     return Self{};
 }
 
+fn getSel(self: *Self) MenuSelection {
+    return self.tab_list[self.tab].contents[self.sel];
+}
+
+fn getTab(self: *Self) MenuTab {
+    return self.tab_list[self.tab];
+}
+
 pub fn tick(self: *Self) State {
     const sel = self.getSel();
     const tab = self.getTab();
     var key_state = SDL.SDL_GetKeyboardState(null);
-    if (key_state[SDL.SDL_SCANCODE_DOWN] == 1 and !self.holding_down) {
-        self.holding_down = true;
-        self.actionSelDown();
-    }
-    if (key_state[SDL.SDL_SCANCODE_DOWN] == 0) {
-        self.holding_down = false;
-    }
-    if (key_state[SDL.SDL_SCANCODE_RETURN] == 1 and !self.holding_enter) {
-        self.holding_enter = true;
-        self.actionSelect();
-    }
-    if (key_state[SDL.SDL_SCANCODE_RETURN] == 0) {
-        self.holding_enter = false;
+
+    for (self.action_list) |*action| {
+        if (key_state[action.*.code] == 1 and !action.*.holding) {
+            action.*.holding = true;
+            action.*.activate = true;
+        }
+        if (key_state[action.*.code] == 0) {
+            action.*.holding = false;
+        }
+
+        // Action
+        if (action.*.activate) {
+            action.*.activate = false;
+            action.*.call(self);
+        }
     }
     std.debug.print(
         \\Tab: {s}
         \\Selection: {s}
         \\
-    , .{ tab.*.name, sel.*.name });
+    , .{ tab.name, sel.name });
     return self.state;
 }
 
@@ -71,8 +85,13 @@ fn actionSelDown(self: *Self) void {
     self.sel %= self.tab_list[self.tab].contents.len;
 }
 
+fn actionSelUp(self: *Self) void {
+    if (self.sel == 0) self.sel = self.tab_list[self.tab].contents.len - 1
+    else self.sel -= 1;
+}
+
 fn actionSelect(self: *Self) void {
-    const action = self.getSel().*.action;
+    const action = self.getSel().action;
     @call(.{}, action, .{self});
 }