From 5adc005f6f668f833cc7c0e308328f61d0be47e7 Mon Sep 17 00:00:00 2001
From: Strangedusk <strangealt@protonmail.com>
Date: Sat, 3 Sep 2022 20:41:26 +0200
Subject: [PATCH] Detect top out and return to menu WIP

---
 src/Game.zig          | 15 +++++++++++++++
 src/Game/Grid.zig     |  1 -
 src/Game/movement.zig | 35 +++++++++++++++++++++++++++++++++++
 src/MainMenu.zig      |  8 ++++++++
 src/main.zig          |  8 ++++++++
 5 files changed, 66 insertions(+), 1 deletion(-)

diff --git a/src/Game.zig b/src/Game.zig
index 0aff27a..f564257 100644
--- a/src/Game.zig
+++ b/src/Game.zig
@@ -53,6 +53,8 @@ timer_right_arr: Timer,
 timer_right_das: Timer,
 timer_gravity: Timer,
 
+needs_reinit: bool = false,
+
 pub fn init(renderer: *Renderer.Renderer) Self {
     var ret = Self{
         .grid = Grid.init(),
@@ -76,6 +78,8 @@ pub fn init(renderer: *Renderer.Renderer) Self {
 
     return ret;
 }
+
+// Main Game loop
 pub fn tick(self: *Self) State {
 
     // TIMERS
@@ -188,6 +192,17 @@ pub fn tick(self: *Self) State {
         self.shadow.color.a /= 4;
     }
 
+    // Check for a top out
+    {
+        if (movement.isToppedOut(self.grid)) {
+            std.debug.print("Topped Out!\n", .{});
+            // Return to main menu
+            self.state = State.main_menu;
+            // Flag that I need a reset
+            self.needs_reinit = true;
+        }
+    }
+
     self.grid.clearLines();
 
     self.renderer.render(self.*);
diff --git a/src/Game/Grid.zig b/src/Game/Grid.zig
index f2598d1..e4cec63 100644
--- a/src/Game/Grid.zig
+++ b/src/Game/Grid.zig
@@ -47,4 +47,3 @@ pub fn clearLines(self: *Self) void {
         }
     }
 }
-
diff --git a/src/Game/movement.zig b/src/Game/movement.zig
index 9770874..2ae4ff1 100644
--- a/src/Game/movement.zig
+++ b/src/Game/movement.zig
@@ -232,3 +232,38 @@ fn checkTTwist(grid: Grid, piece: Piece) bool {
     }
     return false;
 }
+
+pub fn isToppedOut(grid: Grid) bool {
+
+    // First check if a cell in the first rows are occupied
+    // const row_limit = 5;
+    // var i: usize = 0; // Go through rows
+    // var j: usize = 0; // Go through columns
+    // while(i < row_limit) {
+    //     while (j < Grid.ncols) {
+    //         if (!grid.cells[i][j].free) {
+    //             return true;
+    //         }
+    //     }
+    //     j = 0;
+    // }
+
+    // Must check certain cells (where pieces spawn)
+    // rows 20, 21, 22, 23, columns 3, 4, 5, 6
+    //
+    const cells_to_check = .{
+        .{7, 3},.{7, 4},.{7, 5},.{7, 6},
+        .{8, 3},.{8, 4},.{8, 5},.{8, 6},
+        .{9, 3},.{9, 4},.{9, 5},.{9, 6},
+        .{10, 3},.{10, 4},.{10, 5},.{10, 6},
+    };
+    inline for (cells_to_check) |cell| {
+        const row = cell[0];
+        const col = cell[1];
+        if (!grid.cells[row][col].free) {
+            return true;
+        }
+    }
+    return false;
+
+}
diff --git a/src/MainMenu.zig b/src/MainMenu.zig
index f28f0b6..aecc0fa 100644
--- a/src/MainMenu.zig
+++ b/src/MainMenu.zig
@@ -46,6 +46,8 @@ state: State = State.main_menu,
 holding_down: bool = false,
 holding_enter: bool = false,
 
+needs_reinit: bool = false,
+
 pub fn init(renderer: *Renderer.Renderer) Self {
     return Self{ .renderer = Renderer.init(renderer) };
 }
@@ -84,6 +86,12 @@ pub fn getTab(self: Self) MenuTab {
 }
 
 pub fn tick(self: *Self) State {
+
+    if (self.state != State.main_menu) {
+        // If we are returnining
+        self.state = State.main_menu;
+    }
+
     //const sel = self.getSel();
     //const tab = self.getTab();
     var key_state = SDL.getKeyboardState();
diff --git a/src/main.zig b/src/main.zig
index 7766b82..bcdc581 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -28,6 +28,14 @@ pub fn main() !void {
             }
         }
 
+        if (game.needs_reinit) {
+            game = Game.init(&renderer);
+        }
+
+        if (main_menu.needs_reinit) {
+            main_menu = MainMenu.init(&renderer);
+        }
+
         current_state = switch (current_state) {
             .main_menu => main_menu.tick(),
             .game => game.tick(),