While making a top-down map for my game, I needed to arrange some of its parts to fit better together, which required rotating some sections. Since PICO-8 does not provide a way to rotate a map selection, I wrote a simple utility function to do that.
This function rotates a square section of the map clockwise.
MX and MY are the map X and Y coordinates of the upper left corner, and MS is the length of the square side - 1 (e.g. to rotate an 8x8 square, set MS=7)
Notes:
- Make sure that you do not modify the map in any way before you call the rotate function, or the in-memory changes will be written to the cart
- Uncomment the second CSTORE (or edit the to edit the lower portion of the map
- This function is not optimized and is not intended for frequent use (unless you are making some gravity-based platformer, I suppose...)
-- rotate a square section -- of a map clockwise function rotate_map(mx,my,ms) -- read tiles [ [size=16][color=#ffaabb] [ Continue Reading.. ] [/color][/size] ](/bbs/?pid=152999#p) |
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Dark Streets Tech Demo 1
Hi all! Dark Streets is a first-person shooter, mechanically most similar to Wolfenstein 3D or Blake Stone, but also inspired by Doom, Blood, and Ion Fury. I have been slowly developing this game in my free time over the last year and a half. I referenced LoDev and a paper by Amanatides and Woo for some of the raycasting steps, but the rest of the code and graphics are mine. Enjoy a small preview!
Raycasting renderer
Since the setting of the game is a city, I specifically wanted to write a renderer that could draw tall buildings, short objects, doors, and interiors. I think I am pretty close.
- Pretty performant: Everything below takes up only 50-60% of CPU, unless you go crazy with geometry and distances.
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