allow load and use mask in ambient layers.

default layer mask is 1.

2 files changed, 15 insertions, 5 deletions

diff --git a/src/resources/ambientlayer.cpp b/src/resources/ambientlayer.cpp
index 6814b0365..cc9ebdaec 100644
--- a/src/resources/ambientlayer.cpp
+++ b/src/resources/ambientlayer.cpp
@@ -21,6 +21,8 @@
 
 #include "resources/ambientlayer.h"
 
+#include "map.h"
+
 #include "render/graphics.h"
 
 #include "resources/image.h"
@@ -31,10 +33,14 @@
 
 AmbientLayer::AmbientLayer(Image *const img, const float parallax,
                            const float speedX, const float speedY,
-                           const bool keepRatio) :
-    mImage(img), mParallax(parallax),
-    mPosX(0), mPosY(0),
-    mSpeedX(speedX), mSpeedY(speedY),
+                           const bool keepRatio, int mask) :
+    mImage(img),
+    mParallax(parallax),
+    mPosX(0),
+    mPosY(0),
+    mSpeedX(speedX),
+    mSpeedY(speedY),
+    mMask(mask),
     mKeepRatio(keepRatio)
 {
     if (!mImage)
diff --git a/src/resources/ambientlayer.h b/src/resources/ambientlayer.h
index 18bbfb69a..1ab54fd9f 100644
--- a/src/resources/ambientlayer.h
+++ b/src/resources/ambientlayer.h
@@ -26,10 +26,13 @@
 
 class Graphics;
 class Image;
+class Map;
 
 class AmbientLayer final
 {
     public:
+        friend Map;
+
         /**
          * Constructor.
          *
@@ -42,7 +45,7 @@ class AmbientLayer final
          */
         AmbientLayer(Image *const img, const float parallax,
                      const float speedX, const float speedY,
-                     const bool keepRatio = false);
+                     const bool keepRatio, int mask);
 
         A_DELETE_COPY(AmbientLayer)
 
@@ -59,6 +62,7 @@ class AmbientLayer final
         float mPosY;             /**< Current layer Y position. */
         float mSpeedX;           /**< Scrolling speed in X direction. */
         float mSpeedY;           /**< Scrolling speed in Y direction. */
+        int mMask;
         bool mKeepRatio;         /**< Keep overlay ratio on every resolution */
 };