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<1234567…34>
  • Trig questionI'm trying to write a function that describes a 2D circle in 3D space - that's not important, just a bit of background! I've almost done it, but the…

    ... coordinates that will trace a circle (not sphere) in 3D ... the circle is on using vs and vc.

    angle - angle through ... of circle
    R = radius of circle
    A = angle in the circle
    circle, so I want to calculate the starting angle that ...
    NickH NickH June 2005 Sinclair Miscellaneous
  • So shooting 360 degrees?...[I]How do I go about having - for example - a cannon in the middle of the screen, that can shoot in any direction towards the player?[/I] Well, I do…

    ...
    Now to get the angle towards an enemy, you need ... bearing from North as your angle, so 'opposite' is the ... because of the effect of negative numbers, it's best ... out which quadrant of the circle you're in (by ... with one entry for each angle, then you would have ...
    joefish joefish June 2014 Development
  • Bresenham's line algorithmHelp - I really am struggling to get my head around this algorithm. I don't know why, I coped with Cordic (SIN/COS) and integer divide routines (/10 …

    ... consider the detail given for CIRCLE and DRAW ARC).

    negative
    INC A ;change so ... ,$FE ;-2 as dx is negative
    INC A ;change so ...
    Jimmy Jimmy August 2008 Development
  • Bresenhams circle algorithmI post here my final circle code to replace, if you want, the one in the ROM. It only uses integer math and runs very fast and is very compact. It is…

    ... />

    ;Bresenhams circle algorithm calculates the locations of ... the 8 octants of the circle.



    call circle

    ret

    ;******Circle ******
    circle:

    ld ...
    rtunes rtunes September 2008 Development
  • Can this guy give me negative feedback?I requested the total from the seller (to send me an interface from the U.K.) and the total from him was 10GBP for the interface and 10GBP for s&h. I…

    ... /> Can this person give me negative feedback or do something against ...
    zxbruno zxbruno December 2008 Chit chat
  • Laser Squad shooting angle algorythmThis is a bit of a long shot (unless your name is Julian Gollop and you are reading this) but does anyone know the algorythm that Laser Squad uses to…

    ... Squad uses to determine what angle to actually make a shot ...
    SteveSmith SteveSmith January 2010 Games
  • Singularity (a great first person shooter)I thought I'd post this as I've just played a very good modern game that for some reason most people seem not to have heard of, so maybe some of you …

    ... cursor either gets a semi-circle of colour around it (to ... 've listed a load of negative points against a few positives ...
    ewgf ewgf January 2011 Chit chat
  • Trigonometric find angleHi guys, anyone knows a formula to calculate an angle between two coordinates, using basic?s function ATN , recent programming tools have ATAN2(dy,dx…

    Hi guys,
    anyone knows a formula to calculate an angle between two coordinates, using basic?s function ATN , recent programming tools have ATAN2(dy,dx), but im having trouble using atn.
    thanx in advance.
    Valz Valz July 2013 Development
  • CIRCLEHi, I'd like to draw a circle x,y,r using the BASIC-ROM subroutines. I've put x, y and r onto the calculator stack and used CALL #232D and RET. I g…

    ... 'd like to draw a circle x,y,r using the ... RET.
    I got a circle on the screen but after ...
    HZJ HZJ March 2014 Development
  • why does line length affect angle?I am using Plot Draw to make a V like drawing. It's part of an intersection on an isometric path. You would expect one half to be the inverse coordin…

    ... the line length affect the angle of the line? I assumed ...
    mik3d3nch mik3d3nch November 2016 Sinclair Basic
  • THE LIGHTBULB EFFECT You know what that is? Like how cartoonists depict a bright idea by drawing a lightbulb over the head? When I was trying to work out the lengt…

    ... minute, supposing I draw a circle and then fit a square ... becomes the diameter of the circle, there's got to be ... to launcher then read the angle obtained by sighting along the ...
    mik3d3nch mik3d3nch November 2016 Chit chat
  • Pseudocode for CIRCLE algorithm?Can anyone provide me with the pseudocode for the Spectrum's CIRCLE algorithm? My machine code knowledge isn't up to reading the ROM routine. I'm try…

    ... pseudocode for the Spectrum's CIRCLE algorithm? My machine code knowledge ... been using Bresenham's Midpoint Circle algorithm (copied from the web ...
    LevelUp LevelUp February 2020 BASIC
  • CIRCLE Help. Please.Hello. I have been reading the Spectrum Basic programming manual. Chapter 10 - Mathematical Functions - p52 - 53 i am trying to understand circles…

    ... round the circumference of the circle.
    So the manual starts ... /> so they walk round the circle in a right to left ... the 4 points on the circle at 0, pi/2, pi ...
    rholduser rholduser December 2020 Sinclair Basic
  • You've got the Programming skills, I've got the Ideas lets make lots of moneyYou know those tank games, one tank on either side of a hill where you choose angle of fire and strength, well can someone tell the the BASIC instruc…

    ... an object travelling at an angle (a) with a velocity (v ... below:

    10 INPUT "Angle: ";a
    20 INPUT "Velocity ... is needed to convert the angle (a) to radians. Your input ... bounce. That's a bug (negative coordinates plot mirrored in Y ...
    Dunny Dunny February 2006 Sinclair Basic
  • Looking for 'Your Computer' gravity simulation type inHi, In one of the old Your Computer mags, in the type in progs section near the back, there was a Speccy program which simulated interaction between…

    ... Body: Mass? ";m1,"Velocity? ";v1,"Angle? ";a1,"x coord? ";x1,"y ... Body: Mass? ";m2,"Velocity? ";v2,"Angle? ";a2,"x coord? ";x2,"y ... +10
    60 CIRCLE x1,y1,2:\
    CIRCLE x2,y2,2 ...
    Dunny Dunny May 2006 Sinclair Basic
  • Looking for 'Your Computer' gravity simulation type inHi, In one of the old Your Computer mags, in the type in progs section near the back, there was a Speccy program which simulated interaction between…

    ... Body: Mass? ";m1,"Velocity? ";v1,"Angle? ";a1,"x coord? ";x1,"y ... Body: Mass? ";m2,"Velocity? ";v2,"Angle? ";a2,"x coord? ";x2,"y ... Body: Mass? ";m3,"Velocity? ";v3,"Angle? ";a3,"x coord? ";x3,"y ...
    60 CIRCLE x1,y1,2: CIRCLE x2,y2,2: CIRCLE x3,y3 ...
    Matt_B Matt_B November 2006 Sinclair Basic
  • Looking for 'Your Computer' gravity simulation type inHi, In one of the old Your Computer mags, in the type in progs section near the back, there was a Speccy program which simulated interaction between…

    ... Body: Mass? ";m1,"Velocity? ";v1,"Angle? ";a1,"x coord? ";x1,"y ... Body: Mass? ";m2,"Velocity? ";v2,"Angle? ";a2,"x coord? ";x2,"y ... Body: Mass? ";m3,"Velocity? ";v3,"Angle? ";a3,"x coord? ";x3,"y ...
    60 CIRCLE x1,y1,2: CIRCLE x2,y2,2: CIRCLE x3,y3 ...
    Matt_B Matt_B November 2006 Sinclair Basic
  • Manhunt 2...banned!!Looks like the BBFC have put their foot down and refused to certificate Manhunt 2. Shame as I was looking forwar to this on Wii.

    ... gained it a lot of "negative" publicity (which, of course, was ... the sort from a commerical angle) with a campaign that was ...
    Zagreb Zagreb June 2007 Chit chat
  • Voltage SchmoltageOk then. Don't flame for wanting to use a C64 tape deck for this - it was the only one I have to hand which may be cannibalised for the purpose. So …

    ... Marcelo's diagram. The tiny circle labeled 5.7V? Connect a ... . The negative lead of this cap goes to the tiny circle labeled ...
    DEATH DEATH July 2007 Chit chat
  • A suggestion about new gamesI'm talking about "[I]Brand New Games[/I]" ([I]Isotopia, Daytona USA, Space Rocks[/I]...) Don't you think they must be in a separate part in the arc…

    ... well, wouldn't have that negative effect - it would promote the ... 'd really need a new angle to make it a) worth ...
    Danforth Danforth January 2008 Games
  • The fucking government![url]http://www.break.com/index/insane-rainbow-conspiracy-lady.html[/url] What have they been doing???

    ... the air at the right angle, with the sun behind you ... could make a perfect rainbow circle.

    Mind, they've ...
    dekh dekh August 2008 Chit chat
  • The fucking government![url]http://www.break.com/index/insane-rainbow-conspiracy-lady.html[/url] What have they been doing???

    ... the air at the right angle, with the sun behind you ... could make a perfect rainbow circle.

    Mind, they've ...
    XTM of TMG XTM of TMG August 2008 Chit chat
  • Please help an absolute novice with some simple(ish) programming.I'm very, very rusty at BASIC. I'm using BASin, for my GCSE Astronomy coursework [quote] Use a spreadsheet and/or a graphing package, or write a com…

    ... />
    If we have an angle changing from 0 to 360 ... trygonometric functions to draw both circle and elipse. We will be ... using the center and radius (circle case) or two axis (ellipse ... case)

    CIRCLE:

    [code]
    10 ...
    Ralf Ralf December 2008 Sinclair Basic
  • Prince Harry and the word "Paki"Prince Harry is in trouble (yeah, right) for using the word "Paki" to describe a Pakistana colleague, according to: [URL]http://news.bbc.co.uk/1/hi/…

    ... 't have a large social circle, so it's very possible ... word to loose it's negative connotations then that would be ...
    ewgf ewgf January 2009 Chit chat
  • Sinclair BASIC compiler for PC?Boriel's compiler is very powerful but it isn't meant for Sinclair BASIC, and the old compilers in the archive have their limitations: BASIC listing …

    ... .5"[/CODE]

    Some negative exponentiations also gives "Invalid Argument ... to DRAW & CIRCLE.

    DRAW & CIRCLE uses Bresenham's ... and are MUCH faster (specially CIRCLE).

    Anyway: Unused rutines ...
    boriel boriel May 2009 Development
  • Best way to store vector images in Sinclair BASIC?Let's forget for a moment that Sinclair BASIC is slow. If I have a picture made entirely of vector images, what would be the best way to store that d…

    ... , Y follow)
    6=[B]CIRCLE [/B](three parameters follow: X ... on the screen.

    Angle: If you have ever played ... draw by turning about an angle then drawing a line of ...
    BloodBaz BloodBaz May 2009 Sinclair Basic
  • can someone help with a rom routinei have been trying to draw a simple line with a the rom routine , but i just cant get it to work , so if anyone can give me an example in z80 that wo…

    ... the same way as the circle routine. In this case, however ... BC registers: - 1 (FFh) for negative, +1(01h) for positive. The ...
    Steve(spt) Steve(spt) August 2009 Development
  • Any curve algorithm experts here?I'm wondering if any of you can help the helpless here. I'm just working on the Xmas Special intro animation, and I have a set of 3D points which des…

    ... with the corner's angle bisector touches the circle's circumference at ...
    JamesW JamesW October 2009 Chit chat
  • Laser Squad shooting angle algorythmThis is a bit of a long shot (unless your name is Julian Gollop and you are reading this) but does anyone know the algorythm that Laser Squad uses to…

    ... and represienting that new trajectory angle is just trigonometry math ... stuff. For example angle to from you to target ... number to original angle to target (if offset is negative it will ... be substaced from original angle so you ...
    tomas tomas January 2010 Games
  • dot producti need to find the dot product of two angles. i looked it up on wikipedia and realised i should have payed attention in math class. anyway, does an…

    ... to the cosine of the angle between the vectors, or in ... if the dot product is negative).

    It may help ...
    pSXAuthor pSXAuthor January 2010 Chit chat
<1234567…34>

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