Decompile cdIs2dPointInTileType0
This commit is contained in:
Ryan Dwyer
parent
fe1df914fc
commit
59a5683bd8
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@ -1277,105 +1277,39 @@ glabel func000260cc
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/* 26284: 27bd0030 */ addiu $sp,$sp,0x30
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);
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GLOBAL_ASM(
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glabel cdIs2dPointInTileType0
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/* 26288: 27bdfff0 */ addiu $sp,$sp,-16
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/* 2628c: f7b40008 */ sdc1 $f20,0x8($sp)
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/* 26290: 90830001 */ lbu $v1,0x1($a0)
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/* 26294: 4486a000 */ mtc1 $a2,$f20
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/* 26298: 44856000 */ mtc1 $a1,$f12
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/* 2629c: 2402ffff */ addiu $v0,$zero,-1
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/* 262a0: 18600048 */ blez $v1,.L000263c4
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/* 262a4: 00002825 */ or $a1,$zero,$zero
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/* 262a8: 44808000 */ mtc1 $zero,$f16
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/* 262ac: 00804025 */ or $t0,$a0,$zero
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/* 262b0: 24090006 */ addiu $t1,$zero,0x6
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.L000262b4:
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/* 262b4: 24a60001 */ addiu $a2,$a1,0x1
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/* 262b8: 00c3001a */ div $zero,$a2,$v1
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/* 262bc: 00007010 */ mfhi $t6
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/* 262c0: 85180012 */ lh $t8,0x12($t0)
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/* 262c4: 8519000e */ lh $t9,0xe($t0)
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/* 262c8: 01c90019 */ multu $t6,$t1
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/* 262cc: 44982000 */ mtc1 $t8,$f4
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/* 262d0: 44993000 */ mtc1 $t9,$f6
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/* 262d4: 14600002 */ bnez $v1,.L000262e0
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/* 262d8: 00000000 */ nop
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/* 262dc: 0007000d */ break 0x7
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.L000262e0:
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/* 262e0: 2401ffff */ addiu $at,$zero,-1
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/* 262e4: 14610004 */ bne $v1,$at,.L000262f8
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/* 262e8: 3c018000 */ lui $at,0x8000
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/* 262ec: 14c10002 */ bne $a2,$at,.L000262f8
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/* 262f0: 00000000 */ nop
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/* 262f4: 0006000d */ break 0x6
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.L000262f8:
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/* 262f8: 00007812 */ mflo $t7
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/* 262fc: 008f3821 */ addu $a3,$a0,$t7
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/* 26300: 84ea0012 */ lh $t2,0x12($a3)
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/* 26304: 468020a0 */ cvt.s.w $f2,$f4
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/* 26308: 84eb000e */ lh $t3,0xe($a3)
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/* 2630c: 448a4000 */ mtc1 $t2,$f8
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/* 26310: 25080006 */ addiu $t0,$t0,0x6
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/* 26314: 468033a0 */ cvt.s.w $f14,$f6
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/* 26318: 468042a0 */ cvt.s.w $f10,$f8
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/* 2631c: 460e6101 */ sub.s $f4,$f12,$f14
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/* 26320: 46025481 */ sub.s $f18,$f10,$f2
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/* 26324: 448b5000 */ mtc1 $t3,$f10
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/* 26328: 4602a201 */ sub.s $f8,$f20,$f2
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/* 2632c: 46049182 */ mul.s $f6,$f18,$f4
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/* 26330: 468054a0 */ cvt.s.w $f18,$f10
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/* 26334: 460e9101 */ sub.s $f4,$f18,$f14
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/* 26338: 46044282 */ mul.s $f10,$f8,$f4
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/* 2633c: 460a3001 */ sub.s $f0,$f6,$f10
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/* 26340: 46100032 */ c.eq.s $f0,$f16
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/* 26344: 00000000 */ nop
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/* 26348: 4501001c */ bc1t .L000263bc
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/* 2634c: 00000000 */ nop
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/* 26350: 50a00004 */ beqzl $a1,.L00026364
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/* 26354: 4600803c */ c.lt.s $f16,$f0
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/* 26358: 04410008 */ bgez $v0,.L0002637c
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/* 2635c: 00000000 */ nop
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/* 26360: 4600803c */ c.lt.s $f16,$f0
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.L00026364:
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/* 26364: 00001025 */ or $v0,$zero,$zero
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/* 26368: 45000014 */ bc1f .L000263bc
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/* 2636c: 00000000 */ nop
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/* 26370: 24020001 */ addiu $v0,$zero,0x1
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/* 26374: 10000011 */ b .L000263bc
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/* 26378: 00000000 */ nop
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.L0002637c:
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/* 2637c: 10400007 */ beqz $v0,.L0002639c
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/* 26380: 00000000 */ nop
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/* 26384: 4610003c */ c.lt.s $f0,$f16
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/* 26388: 00000000 */ nop
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/* 2638c: 45000003 */ bc1f .L0002639c
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/* 26390: 00000000 */ nop
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/* 26394: 10000010 */ b .L000263d8
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/* 26398: 00001025 */ or $v0,$zero,$zero
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.L0002639c:
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/* 2639c: 14400007 */ bnez $v0,.L000263bc
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/* 263a0: 00000000 */ nop
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/* 263a4: 4600803c */ c.lt.s $f16,$f0
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/* 263a8: 00000000 */ nop
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/* 263ac: 45000003 */ bc1f .L000263bc
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/* 263b0: 00000000 */ nop
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/* 263b4: 10000008 */ b .L000263d8
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/* 263b8: 00001025 */ or $v0,$zero,$zero
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.L000263bc:
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/* 263bc: 14c3ffbd */ bne $a2,$v1,.L000262b4
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/* 263c0: 00c02825 */ or $a1,$a2,$zero
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.L000263c4:
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/* 263c4: 04430004 */ bgezl $v0,.L000263d8
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/* 263c8: 24020001 */ addiu $v0,$zero,0x1
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/* 263cc: 10000002 */ b .L000263d8
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/* 263d0: 00001025 */ or $v0,$zero,$zero
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/* 263d4: 24020001 */ addiu $v0,$zero,0x1
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.L000263d8:
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/* 263d8: d7b40008 */ ldc1 $f20,0x8($sp)
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/* 263dc: 03e00008 */ jr $ra
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/* 263e0: 27bd0010 */ addiu $sp,$sp,0x10
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);
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bool cdIs2dPointInTileType0(struct tiletype0 *tile, f32 x, f32 z)
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{
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s32 result = -1;
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s32 numvertices = tile->header.numvertices;
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s32 i;
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for (i = 0; i < numvertices; i++) {
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s32 next = (i + 1) % numvertices;
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f32 value = ((f32)tile->vertices[next][2] - (f32)tile->vertices[i][2]) * (x - tile->vertices[i][0])
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- ((f32)tile->vertices[next][0] - (f32)tile->vertices[i][0]) * (z - tile->vertices[i][2]);
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if (value != 0) {
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if (i == 0 || result < 0) {
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result = (value > 0);
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} else {
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if (result != 0 && value < 0) {
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return false;
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}
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if (result == 0 && value > 0) {
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return false;
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}
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}
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}
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}
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if (result < 0) {
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return false;
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}
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return true;
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}
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bool cdIs2dPointInTileType1(struct tiletype1 *tile, f32 x, f32 z)
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{
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