contrib/memory: draw flying numbers when buttons are clicked

Signed-off-by: Jean Privat <jean@pryen.org>

diff --git a/contrib/memory/src/memory.nit b/contrib/memory/src/memory.nit
index 3116363..44ca86b 100644 (file)
--- a/contrib/memory/src/memory.nit
+++ b/contrib/memory/src/memory.nit
@@ -28,7 +28,7 @@
 module memory is
        app_name("Memorize Shapes and Colors")
        app_namespace "org.nitlanguage.memory"
-       app_version(0, 1, git_revision)
+       app_version(0, 2, git_revision)
 end
 
 import mnit
@@ -163,6 +163,39 @@ class Button
        fun to_pos: Pos do return new Pos(x, y)
 end
 
+# A flying number to display rank of clicked button
+class Number
+       # The value to use
+       var value: Int
+
+       # The original position
+       var pos: Pos
+
+       # The color of the number
+       var color: Color
+
+       # Time to live (downto 0.0)
+       var ttl = 5.0
+
+       # Draw on the display
+       fun blit_on(display: Display)
+       do
+               ttl -= 0.1
+
+               if ttl < 0.0 then return
+
+               var p = 1.0 - (ttl / 5.0)
+
+               var y = pos.y - (p * 40.0) * app.scale
+
+               color.set(display, p)
+               app.blit_number(value, app.scale * 2.0 * (1.0 + p), pos.x, y, true)
+               if display isa Opengles1Display then
+                       display.reset_color
+               end
+       end
+end
+
 # A rbg color
 class Color
        # red (from 0.0 to 1.0)
@@ -526,6 +559,7 @@ redef class App
                cpt = -1
                path = null
                error = 0
+               numbers.clear
 
                # Ask for a redraw
                first_frame = true
@@ -638,6 +672,9 @@ redef class App
        # The current cursor path
        var path: nullable BPath = null
 
+       # The current flying numbers
+       var numbers = new Array[Number]
+
        # The reload button
        var reload: Button is noautoinit
 
@@ -814,6 +851,7 @@ redef class App
                                        var b = level[cpt]
                                        b.ttl = 1.0
                                        b.sound.play
+                                       numbers.add new Number(cpt+1, b.to_pos, b.color)
                                        cpt += 1
                                        setpath
                                else if cpt == level.length then
@@ -856,6 +894,11 @@ redef class App
                        b.blit_on(display)
                end
 
+               # Display flying numbers
+               for b in numbers do
+                       b.blit_on(display)
+               end
+
                # Display the cursor
                if path != null then
                        drawing.cursor.scale = scale
@@ -894,6 +937,7 @@ redef class App
                if b == level[cpt] then
                        b.sound.play
                        b.ttl = 1.0
+                       numbers.add new Number(cpt+1, b.to_pos, b.color)
 
                        cpt += 1
                        if cpt >= level.length then