« previous next »
Pages: [1]   Go Down

Author Topic: Grammer Routines  (Read 3964 times)

0 Members and 1 Guest are viewing this topic.

Offline Yeong

  • Not a bridge
  • LV12 Extreme Poster (Next: 5000)
  • ************
  • Posts: 3739
  • Rating: +278/-12
  • Survivor of Apocalypse
    • View Profile
Grammer Routines
« on: January 26, 2012, 06:39:12 pm »
Post useful routines here. I'll start first. XD

This is the tilemapping routine/walking routine with scrolling map. This is barely optimized, but have fun. Maybe useful for the RPG programming, you know. ;)

Code: [Select]
://M=Map data  T=Tile data  W'=Width of Tilemap
://H'= Height of the Tilemap  X'= Tilemap X offset
://Y'= Tilemap Y offset  X= Sprite X coord(in 8s)
://Y=Sprite Y coord  S= Sprite data
://F'= Sprite direction (sprite data is in order of
://down, up, left, and right)
://T'= Tile # (from the map data. Good for handling events)
:
:.TILE
:ClrDraw
:Pt-Change(0,M,T,W',X',Y',0
:Pt-On(0,S+F'*8,Y*8,X,1,8
:Y+Y'
:*W'
:+X'+X
:→T'
:DispGraph
:End
:
:.MOVE
:getKey→H
:F'
:If H=1
:0
:If H=4
:1
:If H=2
:2
:If H=3
:3
:→F'
:0→G
:X'
:If H=2 *!(M+T'-1) *X' *X=6  
://M+T'-1 is the tile # character will stand if possible. (order your tiles)
://so if I put (M+T'-1)<4, you'll move when tile number is 0~3.
:1→G X'-1
:If H=3 *!(M+T'+1) *X=6 *W'≠X'+12
:1→G X'+1
:If W'<X'+12
:X'
:→X'
:X
:If H=2 *!(M+T'-1) *!G
:-1
:If H=3 *!(M+T'+1) *!G
:+1
:If  >11
:X
:→X
:0→G
:Y'
:If H=4 *!(M+T'-W') *Y' *Y=4
:1→G Y'-1→Y'
:If H=1 *!(M+T'+W') *Y=4 *H'≠Y'+8
:1→G Y'+1→Y'
:If H'<Y'+8
:Y'
:→Y'
:Y
:If H=4 *!(M+T'-W') *!G
:-1
:If H=1 *!(M+T'+W') *!G
:+1
:If  >7
:Y
:→Y
:End
« Last Edit: January 26, 2012, 06:49:35 pm by TBO_Yeong »
Logged
+1/-0 karm for this message
Sig wipe!

Offline Xeda112358

  • they/them
  • Moderator
  • LV12 Extreme Poster (Next: 5000)
  • ************
  • Posts: 4704
  • Rating: +719/-6
  • Calc-u-lator, do doo doo do do do.
    • View Profile
Re: Grammer Routines
« Reply #1 on: January 29, 2012, 10:43:22 am »
A very simple routine for moving an object in relation to key presses looks something like this:
Code: [Select]

X+geKey(3      ;right arrow
-getKey(2      ;leftArrow
If <96         ;tests if it is in bounds
→X
Y+geKey(1      ;Down arrow
-getKey(4      ;Up Arrow
If <64
→Y
The reason for why If >95 works for both directions is because if X reaches 0 and is decremented, it becomes 65535. So  by testing If >95, you are checking for negative going off screen in both directions :)

EDIT: Edited for optimisation :)
« Last Edit: February 05, 2012, 09:16:02 pm by Xeda112358 »
Logged

Offline Xeda112358

  • they/them
  • Moderator
  • LV12 Extreme Poster (Next: 5000)
  • ************
  • Posts: 4704
  • Rating: +719/-6
  • Calc-u-lator, do doo doo do do do.
    • View Profile
Re: Grammer Routines
« Reply #2 on: February 01, 2012, 09:49:03 pm »
Here is a small routine for adding a 16-bit number to a 32-bit number (that does not exceed maximum or minimum value):

To add GG'+B (does not exceed FFFFFFFF):
Code: [Select]
G'+B→G'
G+Ɵ'
If Ɵ'         ;this means 32-bits were exceeded D:
-1→G'         ;This is negative 1, not minus 1
→G
To subtract without going below zero:
Code: [Select]
G'-B→G'
G--Ɵ'       ;this is minus negative Ɵ'
If Ɵ'       ;this means 32-bits were exceeded D:
0→G'
→G
Logged
Pages: [1]   Go Up
« previous next »