Decompile func00028200
This commit is contained in:
Ryan Dwyer
parent
f0dfee1b5e
commit
b081a9c755
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@ -563,7 +563,7 @@ struct tiletype0 {
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/*0x0a*/ u8 ymax;
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/*0x0b*/ u8 zmax;
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/*0x0c*/ u16 floorcol;
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u16 unk0e;
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/*0x0e*/ s16 vertices[1][3];
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};
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struct tiletype1 {
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@ -5133,154 +5133,89 @@ glabel func00027f78
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/* 281fc: 27bd0068 */ addiu $sp,$sp,0x68
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);
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GLOBAL_ASM(
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glabel func00028200
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/* 28200: 3c0e800a */ lui $t6,%hi(g_Vars+0x32c)
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/* 28204: 8dcea2ec */ lw $t6,%lo(g_Vars+0x32c)($t6)
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/* 28208: 27bdffb8 */ addiu $sp,$sp,-72
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/* 2820c: f7b40008 */ sdc1 $f20,0x8($sp)
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/* 28210: 4487a000 */ mtc1 $a3,$f20
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/* 28214: afb00010 */ sw $s0,0x10($sp)
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/* 28218: 00a08025 */ or $s0,$a1,$zero
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/* 2821c: afb10014 */ sw $s1,0x14($sp)
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/* 28220: 15c00007 */ bnez $t6,.L00028240
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/* 28224: afa60050 */ sw $a2,0x50($sp)
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/* 28228: 948f0002 */ lhu $t7,0x2($a0)
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/* 2822c: 31f80100 */ andi $t8,$t7,0x100
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/* 28230: 53000004 */ beqzl $t8,.L00028244
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/* 28234: 90820001 */ lbu $v0,0x1($a0)
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/* 28238: 1000006f */ b .L000283f8
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/* 2823c: 00001025 */ or $v0,$zero,$zero
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.L00028240:
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/* 28240: 90820001 */ lbu $v0,0x1($a0)
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.L00028244:
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/* 28244: 00001825 */ or $v1,$zero,$zero
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/* 28248: 00002825 */ or $a1,$zero,$zero
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/* 2824c: 00003025 */ or $a2,$zero,$zero
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/* 28250: 18400068 */ blez $v0,.L000283f4
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/* 28254: 00003825 */ or $a3,$zero,$zero
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/* 28258: 3c013f80 */ lui $at,0x3f80
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/* 2825c: 44811000 */ mtc1 $at,$f2
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/* 28260: 44807000 */ mtc1 $zero,$f14
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/* 28264: 244affff */ addiu $t2,$v0,-1
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/* 28268: 00806025 */ or $t4,$a0,$zero
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/* 2826c: c7ac0058 */ lwc1 $f12,0x58($sp)
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/* 28270: 24110006 */ addiu $s1,$zero,0x6
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.L00028274:
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/* 28274: 24e90001 */ addiu $t1,$a3,0x1
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/* 28278: 14ea0002 */ bne $a3,$t2,.L00028284
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/* 2827c: 01204025 */ or $t0,$t1,$zero
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/* 28280: 00004025 */ or $t0,$zero,$zero
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.L00028284:
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/* 28284: 01110019 */ multu $t0,$s1
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/* 28288: 858f000e */ lh $t7,0xe($t4)
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/* 2828c: 0000c812 */ mflo $t9
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/* 28290: 00995821 */ addu $t3,$a0,$t9
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/* 28294: 856e000e */ lh $t6,0xe($t3)
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/* 28298: 85780012 */ lh $t8,0x12($t3)
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/* 2829c: 85990012 */ lh $t9,0x12($t4)
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/* 282a0: 01cf3823 */ subu $a3,$t6,$t7
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/* 282a4: 04e10002 */ bgez $a3,.L000282b0
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/* 282a8: 03196823 */ subu $t5,$t8,$t9
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/* 282ac: 00073823 */ negu $a3,$a3
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.L000282b0:
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/* 282b0: 05a10002 */ bgez $t5,.L000282bc
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/* 282b4: 00000000 */ nop
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/* 282b8: 000d6823 */ negu $t5,$t5
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.L000282bc:
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/* 282bc: 54e00004 */ bnezl $a3,.L000282d0
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/* 282c0: 858e0010 */ lh $t6,0x10($t4)
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/* 282c4: 51a00049 */ beqzl $t5,.L000283ec
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/* 282c8: 01203825 */ or $a3,$t1,$zero
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/* 282cc: 858e0010 */ lh $t6,0x10($t4)
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.L000282d0:
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/* 282d0: 01a7082a */ slt $at,$t5,$a3
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/* 282d4: 448e2000 */ mtc1 $t6,$f4
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/* 282d8: 00000000 */ nop
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/* 282dc: 468021a0 */ cvt.s.w $f6,$f4
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/* 282e0: e7a60024 */ swc1 $f6,0x24($sp)
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/* 282e4: 856f0010 */ lh $t7,0x10($t3)
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/* 282e8: 448f4000 */ mtc1 $t7,$f8
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/* 282ec: 00000000 */ nop
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/* 282f0: 468042a0 */ cvt.s.w $f10,$f8
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/* 282f4: 1020000d */ beqz $at,.L0002832c
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/* 282f8: e7aa001c */ swc1 $f10,0x1c($sp)
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/* 282fc: 8598000e */ lh $t8,0xe($t4)
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/* 28300: 44982000 */ mtc1 $t8,$f4
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/* 28304: 00000000 */ nop
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/* 28308: 468021a0 */ cvt.s.w $f6,$f4
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/* 2830c: e7a60020 */ swc1 $f6,0x20($sp)
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/* 28310: 8579000e */ lh $t9,0xe($t3)
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/* 28314: 44994000 */ mtc1 $t9,$f8
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/* 28318: 00000000 */ nop
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/* 2831c: 468042a0 */ cvt.s.w $f10,$f8
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/* 28320: e7aa0018 */ swc1 $f10,0x18($sp)
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/* 28324: 1000000c */ b .L00028358
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/* 28328: c6100000 */ lwc1 $f16,0x0($s0)
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.L0002832c:
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/* 2832c: 858e0012 */ lh $t6,0x12($t4)
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/* 28330: 448e2000 */ mtc1 $t6,$f4
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/* 28334: 00000000 */ nop
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/* 28338: 468021a0 */ cvt.s.w $f6,$f4
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/* 2833c: e7a60020 */ swc1 $f6,0x20($sp)
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/* 28340: 856f0012 */ lh $t7,0x12($t3)
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/* 28344: 448f4000 */ mtc1 $t7,$f8
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/* 28348: 00000000 */ nop
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/* 2834c: 468042a0 */ cvt.s.w $f10,$f8
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/* 28350: e7aa0018 */ swc1 $f10,0x18($sp)
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/* 28354: c6100008 */ lwc1 $f16,0x8($s0)
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.L00028358:
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/* 28358: c7a60020 */ lwc1 $f6,0x20($sp)
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/* 2835c: c7a40018 */ lwc1 $f4,0x18($sp)
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/* 28360: 46068281 */ sub.s $f10,$f16,$f6
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/* 28364: 46062201 */ sub.s $f8,$f4,$f6
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/* 28368: 46085483 */ div.s $f18,$f10,$f8
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/* 2836c: 4602903e */ c.le.s $f18,$f2
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/* 28370: 00000000 */ nop
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/* 28374: 4502001d */ bc1fl .L000283ec
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/* 28378: 01203825 */ or $a3,$t1,$zero
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/* 2837c: 4612703e */ c.le.s $f14,$f18
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/* 28380: c7a4001c */ lwc1 $f4,0x1c($sp)
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/* 28384: c7a60024 */ lwc1 $f6,0x24($sp)
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/* 28388: 45020018 */ bc1fl .L000283ec
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/* 2838c: 01203825 */ or $a3,$t1,$zero
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/* 28390: 46062281 */ sub.s $f10,$f4,$f6
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/* 28394: 46026101 */ sub.s $f4,$f12,$f2
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/* 28398: 46125202 */ mul.s $f8,$f10,$f18
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/* 2839c: 46064480 */ add.s $f18,$f8,$f6
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/* 283a0: 4612203e */ c.le.s $f4,$f18
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/* 283a4: 00000000 */ nop
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/* 283a8: 45020006 */ bc1fl .L000283c4
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/* 283ac: 4602a280 */ add.s $f10,$f20,$f2
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/* 283b0: 10a0000d */ beqz $a1,.L000283e8
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/* 283b4: 24630001 */ addiu $v1,$v1,0x1
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/* 283b8: 1000000b */ b .L000283e8
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/* 283bc: 24c60001 */ addiu $a2,$a2,0x1
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/* 283c0: 4602a280 */ add.s $f10,$f20,$f2
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.L000283c4:
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/* 283c4: 460a903e */ c.le.s $f18,$f10
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/* 283c8: 00000000 */ nop
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/* 283cc: 45020006 */ bc1fl .L000283e8
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/* 283d0: 24c60001 */ addiu $a2,$a2,0x1
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/* 283d4: 10600004 */ beqz $v1,.L000283e8
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/* 283d8: 24a50001 */ addiu $a1,$a1,0x1
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/* 283dc: 10000002 */ b .L000283e8
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/* 283e0: 24c60001 */ addiu $a2,$a2,0x1
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/* 283e4: 24c60001 */ addiu $a2,$a2,0x1
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.L000283e8:
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/* 283e8: 01203825 */ or $a3,$t1,$zero
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.L000283ec:
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/* 283ec: 1522ffa1 */ bne $t1,$v0,.L00028274
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/* 283f0: 258c0006 */ addiu $t4,$t4,0x6
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.L000283f4:
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/* 283f4: 00c01025 */ or $v0,$a2,$zero
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.L000283f8:
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/* 283f8: d7b40008 */ ldc1 $f20,0x8($sp)
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/* 283fc: 8fb00010 */ lw $s0,0x10($sp)
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/* 28400: 8fb10014 */ lw $s1,0x14($sp)
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/* 28404: 03e00008 */ jr $ra
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/* 28408: 27bd0048 */ addiu $sp,$sp,0x48
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);
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s32 func00028200(struct tiletype0 *tile, struct coord *pos, f32 width, f32 y1, f32 y2)
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{
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s32 count;
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s32 i;
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s32 y1count;
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s32 y2count;
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s32 numverts;
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if (!g_Vars.enableslopes && (tile->header.flags & TILEFLAG_0100)) {
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return 0;
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}
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numverts = tile->header.numvertices;
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y2count = 0;
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y1count = 0;
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count = 0;
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for (i = 0; i < numverts; i++) {
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s32 next = i + 1;
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s32 last = numverts - 1;
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f32 posval;
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f32 thisvals[2];
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f32 nextvals[2];
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f32 somefloat;
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f32 somefloat2;
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s32 xdiff;
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s32 zdiff;
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if (i == last) {
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next = 0;
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}
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xdiff = tile->vertices[next][0] - tile->vertices[i][0];
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zdiff = tile->vertices[next][2] - tile->vertices[i][2];
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if (xdiff < 0) {
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xdiff = -xdiff;
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}
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if (zdiff < 0) {
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zdiff = -zdiff;
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}
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if (xdiff || zdiff) {
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thisvals[1] = tile->vertices[i][1];
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nextvals[1] = tile->vertices[next][1];
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if (zdiff < xdiff) {
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thisvals[0] = tile->vertices[i][0];
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nextvals[0] = tile->vertices[next][0];
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posval = pos->x;
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} else {
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thisvals[0] = tile->vertices[i][2];
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nextvals[0] = tile->vertices[next][2];
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posval = pos->z;
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}
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somefloat = (posval - thisvals[0]) / (nextvals[0] - thisvals[0]);
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if (somefloat <= 1.0f && somefloat >= 0.0f) {
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somefloat2 = thisvals[1] + (nextvals[1] - thisvals[1]) * somefloat;
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if (somefloat2 >= y2 - 1.0f) {
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y2count++;
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if (y1count != 0) {
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count++;
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}
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} else if (somefloat2 <= y1 + 1.0f) {
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y1count++;
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if (y2count != 0) {
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count++;
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}
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} else {
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count++;
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}
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}
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}
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}
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return count;
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}
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GLOBAL_ASM(
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glabel func0002840c
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