gamnit: `CustomTexture::fill` returns self for easier attribute creation

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>

diff --git a/lib/gamnit/textures.nit b/lib/gamnit/textures.nit
index 4fb98ac..1a198a8 100644 (file)
--- a/lib/gamnit/textures.nit
+++ b/lib/gamnit/textures.nit
@@ -168,13 +168,13 @@ class CustomTexture
                for i in [0..4[ do cpixels[offset+i] = bytes[i]
        end
 
-       # Overwrite all pixels with `color`
+       # Overwrite all pixels with `color`, return `self`
        #
        # The argument `color` should be an array of up to 4 floats (RGBA).
        # If `color` has less than 4 items, the missing items are replaced by 1.0.
        #
        # Require: `not loaded`
-       fun fill(color: Array[Float])
+       fun fill(color: Array[Float]): SELF
        do
                assert not loaded else print_error "{class_name}::fill already loaded"
 
@@ -189,6 +189,8 @@ class CustomTexture
                                i += 4
                        end
                end
+
+               return self
        end
 
        redef fun load(force)