However if there was a rocket engine on the block it would turn with the block and thus change the direction of the force in absolute space? So to test this you would need to have a rocket of some kind (water bottle with vinegar and baking soda dissolved in water?) and a low friction setup such as ...

Here is a general strike. I have used the property of mass of a disc and moment of inertia of a disc. ... Looking at you code, but I is a bit hard to follow. Not written for a beauty contest :-) linearimpulse = impulse * Cos(a) / mass angularimpulse = impulse * Sin(a) / anginertia You assume that l...

The borg cube is of course 3d and a lot more complicated. You are allowed to squeeze to borg cube to a height of nearly nothing :-) Hitting a circle is the same at any point. I am not hitting the circle. I have attached engine which shortly applies thrust in y-direction. The angle you hit a square ...

I cannot see what BasicCoder2's last post is adding more to the conversation than the second post did; or am I missing something? Neither did I. As I don't see a real difference between the flying saucer and the borg cube, I expect both to move in y-direction only while rotating. (assuming the thru...

BasicCoder2 wrote:

badidea wrote:Nice demo, but you skip most of the physics involved (forces, mass, inertia). Direct change of rotation and speed. Which is fine for a game, but not what I am looking for (in my game).

Maybe you need a 2d physics engine?

That is an option, but I prefer to grok the physics and implement it myself.

For those you missed it, the 'final' result (with Mario as a horse) can be found here: viewtopic.php?f=17&t=27438&start=90#p260499
Unfortunately, the competition organizer was apparently so disappointed with the result that he ran away.

... Nice demo, but you skip most of the physics involved (forces, mass, inertia). Direct change of rotation and speed. Which is fine for a game, but not what I am looking for (in my game). In space (without gravity) the center is the center of the object COO your spaceship but for example on earth ...

Somehow it seems counter-intuitive that if the thrust is in the y-direction only that the resulting linear motion can be in a different direction. If it be would be a billiard ball and the arrow a cue (stick) with friction between them then motion like in docicat's code seems correct. I'll think som...

... Mostly simple things like closing a window can drive you mad and it takes days, because it is mentioned nowhere.. Not sure if this is a question or remark, but in my code containing a main window and setting window, I just use the small 'x' (often top-left) of the window manager :-) More seriou...

Hello all, I am trying to make a small space ship simulation game, but I got confused with the physics. Maybe someone likes to help. Lets say I have circular space ship (a flying Saucer) with 2 forward thrusters placed off-axis of which only 1 working. Drawing: https://nr100.home.xs4all.nl/badidea/U...

Out of curiosity, I ran the code from ShawnLG with the "256mask.pal" on my Linux laptop and 32-bit freebasic. Result: Seems to work as expected fullscreen, windowed and switching between the two. "256mask.pal" can be found (in zip-file) here: http://games.freebasic.net/dumpbyid.p...

I cannot run your code, but in this small game (https://freebasic.net/forum/viewtopic.php?f=15&t=27720) I detect mouse button release by storing the previous state of the mouse buttons. And I compare this against current state. Mouse button was active and now it is not, then button was released....

dodicat wrote:Summer is here.

Fractal trees?

Back to basics, no classes used. Controls: - Mouse click on tile to rotate tile - Mouse click on arrow to rotate a row / column - Escape key to quit const SCREEN_W = 640, SCREEN_H = 480 const IMG_SIZE = 400 const IMG_XO = (SCREEN_W - IMG_SIZE) \ 2 '120 const IMG_YO = (SCREEN_H - IMG_SIZE) \ 2 '40 co...

A doodle a day, keeps the insanity away :-)