From 79905b35469c750f1a58d9b34dd5691e8f31aaa6 Mon Sep 17 00:00:00 2001
From: Rokas Puzonas <rokas.puz@gmail.com>
Date: Sun, 18 Feb 2024 20:24:25 +0200
Subject: [PATCH] add pause menu

---
 src/main-scene.zig   | 50 ++++++++++++++++++++++++++++++++++++++++----
 src/player-input.zig | 12 +++++++++++
 2 files changed, 58 insertions(+), 4 deletions(-)

diff --git a/src/main-scene.zig b/src/main-scene.zig
index 171fd92..c145c6b 100644
--- a/src/main-scene.zig
+++ b/src/main-scene.zig
@@ -202,6 +202,7 @@ player: Player,
 rope: Rope,
 ui: UI,
 should_close: bool = false,
+paused: bool = false,
 
 camera: rl.Camera2D,
 
@@ -505,6 +506,41 @@ fn tickUI(self: *Self) !void {
         if (self.ui.button("Exit?", content.left(), content.top() + 120, content.width, 30)) {
             self.should_close = true;
         }
+    } else if (self.paused) {
+        const modal_size = rl.Vector2{ .x = 200, .y = 200 };
+        const modal = screen_box.box(
+            screen_box.center() - modal_size.x/2,
+            screen_box.middle() - modal_size.y/2,
+            modal_size.x,
+            modal_size.y
+        );
+        const content = modal.margin(10);
+
+        rl.DrawRectangleRec(modal.rect(), rl.RAYWHITE);
+        UI.drawTextAligned(
+            font,
+            "Paused",
+            content.center_top().add(.{ .x = 0, .y = 30 }),
+            30,
+            rl.BLACK
+        );
+
+        if (self.ui.button("Continue?", content.left(), content.top() + 70, content.width, 30)) {
+            self.togglePaused();
+        }
+
+        if (self.ui.button("Exit?", content.left(), content.top() + 120, content.width, 30)) {
+            self.should_close = true;
+        }
+    }
+}
+
+fn togglePaused(self: *Self) void {
+    self.paused = !self.paused;
+    if (self.paused) {
+        self.player.input.deactivate();
+    } else {
+        self.player.input.activate();
     }
 }
 
@@ -521,11 +557,17 @@ pub fn tick(self: *Self) !void {
     var enemies = &self.enemies;
     var rope = &self.rope;
 
-    self.tickPlayer();
-    try self.tickEnemies();
+    if (self.player.input.isPausePressed()) {
+        self.togglePaused();
+    }
 
-    if (self.player.alive()) {
-        self.timePassed += rl.GetFrameTime();
+    if (!self.paused) {
+        self.tickPlayer();
+        try self.tickEnemies();
+
+        if (self.player.alive()) {
+            self.timePassed += rl.GetFrameTime();
+        }
     }
 
     const deathBallPosition = rope.nodePositions.get(rope.nodePositions.len-1);
diff --git a/src/player-input.zig b/src/player-input.zig
index 5e30074..76bdc51 100644
--- a/src/player-input.zig
+++ b/src/player-input.zig
@@ -104,6 +104,18 @@ pub fn getHandPosition(self: *@This()) rl.Vector2 {
     return hand_position;
 }
 
+pub fn isPausePressed(self: *@This()) bool {
+    if (rl.IsKeyPressed(rl.KeyboardKey.KEY_ESCAPE)) {
+        return true;
+    }
+
+    if (rl.IsGamepadAvailable(self.gamepad) and rl.IsGamepadButtonPressed(self.gamepad, .GAMEPAD_BUTTON_MIDDLE_RIGHT)) {
+        return true;
+    }
+
+    return false;
+}
+
 pub fn activate(self: *@This()) void {
     if (self.active) return;
     rl.DisableCursor();