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It's not a game engine yet, but it could be. No, I was working (for now) on a sing-along type app for The Last Unicorn's theme song. It follows the song at the syllable level. The graphics are changed with screen flip so as to never show any weakness in the graphic speed department. I'll made...

You can hold the mouse button in Mouse Stampede and it'll fire continuously.

SCOREBOARD (submit screens or photos between January 21st 2023 00:00 PST to February 21st 2023 23:59 PST MOUSE STAMPEDE 2.0 SCORE - NAME - DATE CRYSTAL QUEST 2.2 SCORE - NAME - DATE CRAB ATTACK II SCORE - NAME DATE 291,863 - Mu0n - Feb 21st 2023 1,336,025 - Mu0n - Feb 13th 2023 2,560 - Mu0n...

Go for it! Then tell me WTF is going on in room 51, it's the Great Reaper. I think I remember it from back in the day too.

in the OP, I state it as 23:59PM EST Jan 20th to avoid confusion on which midnight to use

Last entry for Glider, 193,382 so let's see yours you probably had in reserve, @3lectr1c !

Cascading crashes is the name of my indie prog rock band

Indeed, I knew that but for some bone-headed reason, the emulator spoiled me into concentrating on other problems first. I think I have to go there for good measure, so thanks for once again putting me on the right track. What you propose, main loop only? pass 1: TickCount polled, no events to...

Target platform: real Mac Plus Secondary target platform for quick bug squashing: mini-vMac My project has been real challenging. I've stumbled upon every possible bug, like always, despite avoiding a ton more. But I feel like mastering this brings me significantly closer to my fluid game...

Another bug found: mini-vMac doesn't care if you check if an unassigned PicHandle is nil or not, but the real Mac will give you a address bus error ID=02.

SHAMEFUL DISCOVERY empty out obscure bitmap-like areas before usage, kids. It worked after I filled the space with white. I would like to thank @YMK and @Crutch for their help and patience.

Meanwhile, no problem manually splattering a character all over the alternate screen like so: with this chunk of code replacing DrawPicture(img2,&r); char *paint; //.... //Draw on alternate screen here qd.thePort->portBits.baseAddr = altScreen; //DrawPicture(pic2,&r)...

Hitting a bit of a snag when I'm trying to show the alternate screen's content, it shows up as a really dark screen: Here's my code of a small program simply aimed at testing the technique - I had to look up how to use branch statement with labels with asm blocks in THINK C: #include...

I don't know what this is and I guess I didn't need it since my stuff works! To appreciate how screen flipping can truly help me, I'd need to know common quickdraw function timings. I need help understanding how scenario B helps things: Scenario A: Draw as fast as you can on the main screen...

Ok, lemme get this straight. let's assume X is the number of cycles needed to complete a frame of high speed video game graphics. let's assume V is the number of cycles between vertical blanks of the screen retrace (V being as long as 1 tick, 1/60 th) let's assume X is such that X < V Show the...

This quick code seems to work under mini-vMac, and I assume (!!) on a real Mac Plus as well. I just used the swap_screens() function of the book on p.301 https://vintageapple.org/macprogramming/pdf/Programming_C_On_The_Macintosh_1986.pdf Still got to find the best way to draw something onto...

Let's get it over with: paging @Crutch since I know he has tips inside his mind at the ready, with no need to consult any reference, like always. Goal: I want to prepare an alternate screen buffer graphic a few seconds in advance so I can instantly 'screen flip' at a precise time when needed...

I reached part 2, room 46 and got 162,620, taking the lead for Glider 4.0!

Montage time!

The full 3.8 m (12.5 ft) length of my corner as of Jan 2023 Last pic: finally have a free phone app on Android to take good CRT pictures with 1/70 s aperture thanks to a video from DosFox.