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鉴于我是条懒虫，这次也懒得翻译了。。直接拿发在老外那里的东西好了。需要注意的是图片和色板都请用unlz压缩。仅限火红
Intro:
In Ruby, many hackers uses the BG0 to make mugshots. However, the same way that simply writing tileset, tilemap and palette to the RAM won't work for FR & EM as it will be cleared by the MSGBOX.
However, there's still a way to do it, which requires the knowledge of "rboxes". I've figured out some simple usage of the related functions, so I will show you my work:
The most xxxxing thing should be that only 1 BG palette for FR can be used, which is the palette for the money box (the box with thinner border). Therefore, it will only be able to launch 1 mugshot at a time and you can't use it with the money box!
How to use:
The routines are provided at the bottom.
1. Change 0x8900000 in mugshot_make.asm to free space, which is ended in 0,4,8,c. It will be the location of our custom table.
2. Compile the 2 routines and insert them to some free space (Not the table location in step 1)
3. Get/draw some 80x80 mugshots, here's 2 examples:
 
They should be indexed to 16 colors.
4. Open your UNLZ-GBA and insert your images and palettes.
Note: the image and the palette should all be LZ77 compressed, which means that you should insert them by using "export image" and "export palette" in UNLZ-GBA. Aparrently they should all be inserted at some free space.
5. Build the table at the offset in step 1, whose format should be [image0 pointer][image0 pal pointer][image1 pointer][image1 pal pointer][image2 pointer][image2 pal pointer]...................
It can load up to 65536 images in algorithm, which means that it's enough.
6. Test time! use
setvar 0x8004 [image index in the table]
setvar 0x8005 [0 or 1] // 0 = left, 1 = right
callasm 0x8[mugshot_make.asm+1]
to launch the mugshot and
callasm 0x8[mugshot_del.asm+1] to delete it.
An example:
I insert the 2 images at 0xFA0000, 0xFA09CC and the 2 palettes at 0xFA09A4, 0xFA1484. Then the table should be:- 00 00 FA 08 A4 09 FA 08 CC 09 FA 08 84 14 FA 08
- //---------------
- #org 0xF00000
- lock
- setvar 0x8004 0x0 //image0
- setvar 0x8005 0x1 //right side
- callasm 0x8800001 //mugshot_make.asm+1
- msgbox 0x8F00030 0x6
- callasm 0x8800089 //mugshot_del.asm+1
- release
- end
- #org 0xF00030
- = ABCD.
mugshot_make.asm- /*
- Note: both image and palette should be LZ77 compressed!
- Table format: [image pointer][pal pointer]..........
- */
- .equiv table_location, 0x8900000
- .thumb
- push {r4-r5, lr}
- sub sp, sp, #0x18
- ldr r0, =0x20370C0
- ldrh r0, [r0, #2]
- mov r1, #0
- mov r2, #0x14
- mul r2, r0
- mov r3, #4
- mov r0, #10
- str r0, [sp]
- str r0, [sp, #4]
- mov r0, #0xD
- str r0, [sp, #8]
- mov r0, #0x40
- str r0, [sp, #0xC]
- add r0, sp, #0x10
- ldr r4, =0x810FE51
- bl bx_r4
- add r0, sp, #0x10
- ldr r4, =0x8003CE5
- bl bx_r4
- ldr r4, =0x2039990
- strb r0, [r4]
- ldr r4, =0x8003FA1
- bl bx_r4
- ldr r0, =0x20370C0
- ldrh r0, [r0]
- ldr r1, =table_location
- lsl r0, r0, #3
- add r0, r0, r1
- ldr r5, [r0, #4]
- ldr r0, [r0]
- ldr r1, =0x6008800
- swi 0x12
- mov r0, r5
- mov r1, #0xd0
- mov r2, #0x20
- ldr r4, =0x80703A9
- bl bx_r4
- mov r0, #0
- ldr r4, =0x80020BD
- bl bx_r4
- add sp, sp, #0x18
- pop {r4-r5, pc}
- bx_r4: bx r4
- .thumb
- push {r4, lr}
- ldr r4, =0x2039990
- ldrb r4, [r4]
- mov r1, #0
- mov r0, r4
- ldr r3, =0x810F4D9
- bl bx_r3
- mov r0, r4
- mov r1, #2
- ldr r3, =0x8003F21
- bl bx_r3
- mov r0, r4
- ldr r3, =0x8003E3D
- bl bx_r3
- pop {r4, pc}
- bx_r3: bx r3
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口袋中心·绿宝石·改（更新1.6.4版）
发表于 2016-4-18 13:31:06
提升卡
变色卡
发表于 2016-4-18 17:57:01
80×80果然看起来够大…2333
楼主
发表于 2016-4-20 17:31:12
