Improved gravity in SDL Experiment 12

- Put a minimum speed of 0.01 on gravityAcceleration.y

SDL2-Bits-And-Pieces/Experiment-12/SDL2-Experiment-12.c

@@ -271,6 +271,11 @@ int main(int argc, char ** argv)
 			gravityAcceleration = 1;
 		}
 
+		if(gravityAcceleration < 0.01)
+		{
+			gravityAcceleration = 0.01;
+		}
+		
 		// Scale the vector:
 		multiplyXYVector(&gravityVector, gravityAcceleration);