added ag::drawPoint()

git-svn-id: svn://anubis/anaglym/trunk@205 99a6e188-d820-4881-8870-2d33a10e2619

lib/demo/bowling.lua

@@ -7,9 +7,35 @@ function setupPins()
     end
 end
 
+function setupStars()
+    stars = {}
+    local dist = 500
+    for i = 1, 1000 do
+        local star = {}
+        local rx = math.random() * math.pi * 2
+        local ry = (math.random() - 0.5) * math.pi
+        star.x = dist * math.cos(ry) * math.cos(rx)
+        star.y = dist * math.cos(ry) * math.sin(rx)
+        star.z = dist * math.sin(ry)
+        star.size = math.random(2, 8)
+        stars[i] = star
+    end
+end
+
+function drawStars()
+    for i = 1, #stars do
+        ag.drawPoint(stars[i].size, 1, 1, 1, stars[i].x, stars[i].y, stars[i].z)
+    end
+end
+
 function init_event()
     pins = {}
     lane = ag.loadModelStatic("bowling_lane")
     setupPins()
+    setupStars()
     ag.setCamera(0, -20, 5, 0, 20, 0)
 end
+
+function update_event()
+    drawStars()
+end