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Screenshots - Motorcycle

Motorcycle atari screenshot
Motorcycle atari screenshot
Motorcycle atari screenshot
Motorcycle atari screenshot

Information - Motorcycle

GenreRacing - MotorcycleYear1987
LanguageGFA BASICPublisher[no publisher]
ResolutionLowLicensed from-

Williams, John

CountryUnited Kingdom
Graphic Artist(s)

Williams, John

Game design

Williams, John

Box / InstructionsEnglish


LicensePD / Freeware / Shareware
Sound FX

Williams, John

Cover Artist(s)ST TypeST, STe / 0.5MB
Dumpdownload atari Motorcycle Download / STNumber of Disks1 / Double-Sided

Instructions - Motorcycle

Hi, and welcome to MOTOR, the motorcycle simulation. By now, 
you've unpacked the files, one of which you're looking at now. You 
should have four files:

MOTOR.PRG - The program.
MOTOR.PI1 - The sprite picture file.
MOTOR.TXT - The course data file.
MOTOR.DOC - This file.

The reason why I call this program a simulator is because there 
is no goal, no score. The object is to control the motorcycle 
through courses you create. An easy course is provided in order 
for you to become acquainted with MOTOR.


There are four objects of interest in the MOTOR display, the road, 
the motorcycle, the warning sign, and the speedometer. As you 
drive through the course, the road will twist and turn. You must 
control the bike to stay on it. The speedometer indicates how fast 
you are going, and the engine sound will change pitch to 
correspond to your speed. The warning sign will show you when the 
course is changing.


The mouse controls the motorcycle. Sideways movements of the mouse 
control banking. All turning is accomplished through banking the 
motorcycle. The mouse position determines the rate at which the 
motorcycle will bank. The speed of the bike determines how tightly 
you can turn given a certain bank. The faster you travel, the less 
effect banking will have on turning.

The right button is the throttle, and the left button is the 
brake. Press the right button to speed up, and the left to slow 


The course file contains a script describing the road. Each line 
has three numbers:

N is the next step. The course begins at step 0 and follows the 
steps according to the value N for that step. Typically, the N for 
successive steps increments on each step, until the last step. The 
last step has an N value of 0, directing back to the beginning of 
the course.

Turn is the degree of turn. This number must be an integer between 
0 and 63. 31 is a straightaway.

Distance is the distance of the step, that is, how far the 
motorcycle must travel to get to the next step.

MOTOR automatically triangulates the course. The actual turn of 
the road is determined by weighted a average of the turn and the 
next turn according to how far you travelled into that step.
The simple course included illustrates this principle:


The road will:
Go straight 3000 units
Ease into a hard right turn over 5000 units
Hard right turn 1000 units
Ease into a straightaway over 5000 units
ETC., until the last step, where it loops back to the beginning, 
Easing into a straightaway over 5000 units.

A little experimentation on turns and distances will result in a 
course that is fairly difficult, yet gives adequate warning of 
impending turns. You are allowed to have 100 steps in a course. 
You must create a loop starting from step 0. The provided course 
should be fairly challenging for a while, and by the time you want 
to design your own course, you will understand the concepts a 
little better.


1) Going straight can be difficult. This is because after you have 
stopped moving to the side, you are usually in a bank that will 
tend to accelerate you in the opposite direction. If you are not 
careful, this can result in oscillations that will eventually 
drive you off the road. When stopping a sideways movement, ease 
out of the bank slightly prior to having come to a proper 
direction. Pull out of the bank immediately before the motorcycle
ceases to move sideways. Most straightaways are long enough that 
you will never have to go into a hard bank to move a little to the 
side. On the straightaways, be gentle with the controls.

2) On turns, you can use the throttle and brake to control 
sideways movement. Slow down to make a tighter turn, speed up to 
take a wider turn. Going into a turn, bank the bike as far as it 
will go, and slow down to stay on the road. Coming out of a turn, 
speed up and gently ease out of the bank.

3) On long straightaways, watch your speed. The turns can come 
very quickly at high speed, forcing you off the road before you 
have a chance to slow down. On the other hand, the faster you go 
on straightaways, the easier the bike will be to control.

4) If you crash, you will hear a clunking sound, and see an alert 
box, use this opportunity to straighten the mouse position.

5) Oh, yeah, you have unlimited fuel, unlimited lives, and 
unlimited time.

6) The OBJECT of this game is CONTROL. Good luck!
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