Creating Heavy Tank with different exterior and parameters

[Bowen-777]

The Heavy Tank with a more cooler shape and different parameters

• The Heavy tank has cooler body model and wider bullet muzzle
• The damage per bullet is improved by 50%
• The cooling-off period is increased by 20%
• (The max damage per second is improved)
• The speed of the Heavy tank is 33% slower

The image is as follows

[Bowen-777]

Close #216 Creating tank track

The tank track/trace has been created using a new texture

• The trace will be generated according to the moving direction.
• The trace will disappear in 2 sec.
• (However, Generating the trace seems to be a heavy task for the CPU, making tank movement no that smooth.)
• The trace is now implemented only on the "Heavy Tank" created by myself, not on the original tiny tank.
• Although the trace is not that natural when the tank is turning, considering the limited source of CPU, this is the best that I can do for now.

Tank.Track.mp4