Lua API:
onSpritePlacement(spriteId, centerX, centerY)
onGirderPlacement(frameIdx, centerX, centerY)
onRubberPlacement(frameIdx, centerX, centerY)
MISC_DIR := $(call my-dir)
LOCAL_PATH := MISC_DIR
include $(MISC_DIR)/liblua/Android.mk
include $(MISC_DIR)/libphysfs/Android.mk
include $(MISC_DIR)/libphyslayer/Android.mk