Toggle mute button always visible, no keyboard

main.c

@@ -88,6 +88,7 @@ static sg_image image_mystery;
 static sg_image image_explosion;
 static sg_image image_low_health;
 static sg_image image_mic_muted;
+static sg_image image_mic_unmuted;
 static sg_image image_flag_available;
 static sg_image image_flag_taken;
 static sg_image image_squad_invite;
@@ -403,6 +404,7 @@ init(void)
 		image_explosion = load_image("loaded/explosion.png");
 		image_low_health = load_image("loaded/low_health.png");
 		image_mic_muted = load_image("loaded/mic_muted.png");
+		image_mic_unmuted = load_image("loaded/mic_unmuted.png");
 		image_flag_available = load_image("loaded/flag_available.png");
 		image_flag_taken = load_image("loaded/flag_ripped.png");
 		image_squad_invite = load_image("loaded/squad_invite.png");
@@ -564,7 +566,7 @@ static void
 ui(bool draw, float dt, float width, float height)
 {
 	static float cur_opacity = 1.0f;
-	cur_opacity = lerp(cur_opacity, myentity() != NULL ? 1.0f : 0.0f, dt * 5.0f);
+	cur_opacity = lerp(cur_opacity, myentity() != NULL ? 1.0f : 0.0f, dt * 4.0f);
 	if (cur_opacity <= 0.01f)
 	{
 		return;
@@ -823,21 +825,32 @@ ui(bool draw, float dt, float width, float height)
 	}
 
 	// draw muted
-	static float muted_opacity = 0.0f;
+	static float toggle_mute_opacity = 0.2f;
+	const float size = 150.0f;
+	AABB button = (AABB){
+		.x = width - size - 40.0f,
+		.y = height - size - 40.0f,
+		.width = size,
+		.height = size,
+	};
+	bool hovered = has_point(button, mouse_pos);
+	if (build_pressed && hovered)
+	{
+		muted = !muted;
+		build_pressed = false;
+	}
 	if (draw)
 	{
-		muted_opacity = lerp(muted_opacity, muted ? 1.0f : 0.0f, 8.0f * dt);
-		sgp_set_color(1.0f, 1.0f, 1.0f, muted_opacity);
-		float size_x = 150.0f;
-		float size_y = 150.0f;
+		toggle_mute_opacity = lerp(toggle_mute_opacity, hovered ? 1.0f : 0.2f, 6.0f * dt);
+		sgp_set_color(1.0f, 1.0f, 1.0f, toggle_mute_opacity);
+		if (muted)
 			sgp_set_image(0, image_mic_muted);
-
-		float x = width - size_x - 40.0f;
-		float y = height - size_y - 40.0f;
+		else
+			sgp_set_image(0, image_mic_unmuted);
 		transform_scope
 		{
-			sgp_scale_at(1.0f, -1.0f, x + size_x / 2.0f, y + size_y / 2.0f);
-			sgp_draw_textured_rect(x, y, size_x, size_y);
+			sgp_scale_at(1.0f, -1.0f, button.x + button.width / 2.0f, button.y + button.height / 2.0f);
+			sgp_draw_textured_rect(button.x, button.y, button.width, button.height);
 			sgp_reset_image(0);
 		}
 	}
@@ -1541,10 +1554,6 @@ void event(const sapp_event* e)
 			cur_editing_rotation += 1;
 			cur_editing_rotation %= RotationLast;
 		}
-		if (e->key_code == SAPP_KEYCODE_M)
-		{
-			muted = !muted;
-		}
 		if (e->key_code == SAPP_KEYCODE_F11)
 		{
 			fullscreened = !fullscreened;