v1.3.0 Tree Planting & Rubber

Features - Tree planting (When fruits are sown on the ground, they grow to the same size as the original tree and bear fruits with a certain probability) - Rubber (Raw rubber can be obtained by damaging a rubber tree, and becomes rubber when combined with sulfur) - Multiple saves - Added a music for cold regions Adjustments - Increased the burning speed (maximum temperature) of objects in contact with niter (the niter disappears when a certain amount of combustion is assisted) - Suppressed penetration of high-speed objects and beams - Changed the calculation formula for explosion damage - The size of naturally generated objects is now in 1 cm increments - Limited the ground and temperature on which each plant can grow - Increased the movement speed of the player in the air - Changed the material of the trunk of coniferous trees - Adjusted the density and durability of wood - Changed the composition ratio of gunpowder - Adjusted the range where slime detects food - Changed so that the durability of leaves is gradually restored - Changed so that the leaves wither as soon as they are removed from the trunk Fixes -Fixed a bug that heat was not transferred to the objects in contact Note: The save data of the previous version can be inherited, but additional features are generated only in the unexplored area.