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layer:layer_2_x=1.0|layer:layer_3_ismain=true|layer:layer_2_isused=true|layer:layer_1_y=1.0|layer:layer_1_x=1.0|layer:layer_2_id=layer4|layer:layer_2_y=1.0|layer:layer_0_ismain=false|layer:layer_2_ismain=false|layer:layer_1_isused=true|layer:layer_0_id=layer3|layer:layer_3_id=layer1|layer:layer_0_x=1.61|layer:layer_0_y=1.0|layer:layer_0_isused=true|layer:layer_1_id=layer2|layer:layer_3_x=1.0|layer:layer_3_y=1.0|layer:layer_3_isused=true|layer:layer_1_ismain=false|sky:tex=DarkDirt|sky:drifted=false|sky:use_params=false|level:name=Cigam_Layer Example 04|level:author=Cigam|level:smooth=9|level:tex=Dirt_fg|level:lua=|level:id=Cigam_Examples04|level:desc=Ex04: an example showing the effects of background blocks and physics blocks in 3 layers, and another physics layer.