Decompile cdFindGroundInTileType1
This commit is contained in:
Ryan Dwyer
parent
f13283dd87
commit
a8e6197cdb
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@ -1114,124 +1114,44 @@ glabel func00025f90
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/* 260c8: 27bd0028 */ addiu $sp,$sp,0x28
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);
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GLOBAL_ASM(
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glabel cdFindGroundInTileType1
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/* 260cc: 27bdffd0 */ addiu $sp,$sp,-48
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/* 260d0: afa60038 */ sw $a2,0x38($sp)
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/* 260d4: c4840010 */ lwc1 $f4,0x10($a0)
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/* 260d8: c492001c */ lwc1 $f18,0x1c($a0)
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/* 260dc: 44857000 */ mtc1 $a1,$f14
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/* 260e0: 46049201 */ sub.s $f8,$f18,$f4
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/* 260e4: e7a80024 */ swc1 $f8,0x24($sp)
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/* 260e8: c4860014 */ lwc1 $f6,0x14($a0)
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/* 260ec: c48a0020 */ lwc1 $f10,0x20($a0)
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/* 260f0: 46065481 */ sub.s $f18,$f10,$f6
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/* 260f4: e7b20028 */ swc1 $f18,0x28($sp)
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/* 260f8: c4880018 */ lwc1 $f8,0x18($a0)
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/* 260fc: c4840024 */ lwc1 $f4,0x24($a0)
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/* 26100: 46082281 */ sub.s $f10,$f4,$f8
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/* 26104: e7aa002c */ swc1 $f10,0x2c($sp)
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/* 26108: c4920010 */ lwc1 $f18,0x10($a0)
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/* 2610c: c4860028 */ lwc1 $f6,0x28($a0)
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/* 26110: 46123101 */ sub.s $f4,$f6,$f18
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/* 26114: e7a40018 */ swc1 $f4,0x18($sp)
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/* 26118: c48a0014 */ lwc1 $f10,0x14($a0)
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/* 2611c: c488002c */ lwc1 $f8,0x2c($a0)
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/* 26120: 460a4181 */ sub.s $f6,$f8,$f10
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/* 26124: c7aa0028 */ lwc1 $f10,0x28($sp)
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/* 26128: e7a6001c */ swc1 $f6,0x1c($sp)
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/* 2612c: c4840018 */ lwc1 $f4,0x18($a0)
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/* 26130: c4920030 */ lwc1 $f18,0x30($a0)
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/* 26134: e7aa0000 */ swc1 $f10,0x0($sp)
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/* 26138: 46049201 */ sub.s $f8,$f18,$f4
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/* 2613c: c7a4001c */ lwc1 $f4,0x1c($sp)
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/* 26140: e7a80020 */ swc1 $f8,0x20($sp)
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/* 26144: c7a60020 */ lwc1 $f6,0x20($sp)
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/* 26148: c7a8002c */ lwc1 $f8,0x2c($sp)
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/* 2614c: e7a40004 */ swc1 $f4,0x4($sp)
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/* 26150: 46065482 */ mul.s $f18,$f10,$f6
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/* 26154: 00000000 */ nop
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/* 26158: 46082282 */ mul.s $f10,$f4,$f8
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/* 2615c: c7a40024 */ lwc1 $f4,0x24($sp)
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/* 26160: 460a9481 */ sub.s $f18,$f18,$f10
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/* 26164: c7aa0018 */ lwc1 $f10,0x18($sp)
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/* 26168: 460a4202 */ mul.s $f8,$f8,$f10
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/* 2616c: e7b2000c */ swc1 $f18,0xc($sp)
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/* 26170: 46043182 */ mul.s $f6,$f6,$f4
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/* 26174: 46064201 */ sub.s $f8,$f8,$f6
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/* 26178: c7a60004 */ lwc1 $f6,0x4($sp)
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/* 2617c: 46062102 */ mul.s $f4,$f4,$f6
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/* 26180: c7a60000 */ lwc1 $f6,0x0($sp)
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/* 26184: e7a80010 */ swc1 $f8,0x10($sp)
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/* 26188: 46065282 */ mul.s $f10,$f10,$f6
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/* 2618c: 460a2181 */ sub.s $f6,$f4,$f10
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/* 26190: e7a60014 */ swc1 $f6,0x14($sp)
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/* 26194: c4840010 */ lwc1 $f4,0x10($a0)
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/* 26198: 46049282 */ mul.s $f10,$f18,$f4
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/* 2619c: c4920014 */ lwc1 $f18,0x14($a0)
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/* 261a0: 46124102 */ mul.s $f4,$f8,$f18
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/* 261a4: 46045480 */ add.s $f18,$f10,$f4
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/* 261a8: c48a0018 */ lwc1 $f10,0x18($a0)
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/* 261ac: 46065102 */ mul.s $f4,$f10,$f6
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/* 261b0: 44805000 */ mtc1 $zero,$f10
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/* 261b4: 00000000 */ nop
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/* 261b8: 46085032 */ c.eq.s $f10,$f8
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/* 261bc: 46122000 */ add.s $f0,$f4,$f18
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/* 261c0: c7a4000c */ lwc1 $f4,0xc($sp)
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/* 261c4: 45000008 */ bc1f .L000261e8
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/* 261c8: 00000000 */ nop
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/* 261cc: 908d000a */ lbu $t5,0xa($a0)
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/* 261d0: 2402000c */ addiu $v0,$zero,0xc
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/* 261d4: 01a20019 */ multu $t5,$v0
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/* 261d8: 00007012 */ mflo $t6
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/* 261dc: 008e7821 */ addu $t7,$a0,$t6
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/* 261e0: 10000027 */ b .L00026280
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/* 261e4: c5e00014 */ lwc1 $f0,0x14($t7)
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.L000261e8:
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/* 261e8: 460071a1 */ cvt.d.s $f6,$f14
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/* 261ec: 460024a1 */ cvt.d.s $f18,$f4
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/* 261f0: 46000221 */ cvt.d.s $f8,$f0
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/* 261f4: 46323282 */ mul.d $f10,$f6,$f18
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/* 261f8: c7a60038 */ lwc1 $f6,0x38($sp)
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/* 261fc: 9098000a */ lbu $t8,0xa($a0)
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/* 26200: 2402000c */ addiu $v0,$zero,0xc
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/* 26204: 460034a1 */ cvt.d.s $f18,$f6
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/* 26208: 03020019 */ multu $t8,$v0
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/* 2620c: 462a4101 */ sub.d $f4,$f8,$f10
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/* 26210: c7a80014 */ lwc1 $f8,0x14($sp)
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/* 26214: 460042a1 */ cvt.d.s $f10,$f8
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/* 26218: 462a9182 */ mul.d $f6,$f18,$f10
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/* 2621c: c7b20010 */ lwc1 $f18,0x10($sp)
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/* 26220: 0000c812 */ mflo $t9
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/* 26224: 00994021 */ addu $t0,$a0,$t9
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/* 26228: 460092a1 */ cvt.d.s $f10,$f18
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/* 2622c: c5020014 */ lwc1 $f2,0x14($t0)
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/* 26230: 46262201 */ sub.d $f8,$f4,$f6
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/* 26234: 462a4103 */ div.d $f4,$f8,$f10
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/* 26238: 46202420 */ cvt.s.d $f16,$f4
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/* 2623c: 4610103c */ c.lt.s $f2,$f16
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/* 26240: 46008306 */ mov.s $f12,$f16
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/* 26244: 45020004 */ bc1fl .L00026258
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/* 26248: 90890007 */ lbu $t1,0x7($a0)
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/* 2624c: 1000000b */ b .L0002627c
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/* 26250: 46001306 */ mov.s $f12,$f2
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/* 26254: 90890007 */ lbu $t1,0x7($a0)
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.L00026258:
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/* 26258: 01220019 */ multu $t1,$v0
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/* 2625c: 00005012 */ mflo $t2
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/* 26260: 008a5821 */ addu $t3,$a0,$t2
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/* 26264: c5600014 */ lwc1 $f0,0x14($t3)
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/* 26268: 4600803c */ c.lt.s $f16,$f0
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/* 2626c: 00000000 */ nop
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/* 26270: 45020003 */ bc1fl .L00026280
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/* 26274: 46006006 */ mov.s $f0,$f12
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/* 26278: 46000306 */ mov.s $f12,$f0
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.L0002627c:
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/* 2627c: 46006006 */ mov.s $f0,$f12
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.L00026280:
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/* 26280: 03e00008 */ jr $ra
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/* 26284: 27bd0030 */ addiu $sp,$sp,0x30
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);
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f32 cdFindGroundInTileType1(struct tiletype1 *tile, f32 x, f32 z)
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{
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struct coord sp24;
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struct coord sp18;
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struct coord sp0c;
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f32 tmp;
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f32 ground;
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sp24.x = tile->vertices[1].x - tile->vertices[0].x;
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sp24.y = tile->vertices[1].y - tile->vertices[0].y;
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sp24.z = tile->vertices[1].z - tile->vertices[0].z;
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sp18.x = tile->vertices[2].x - tile->vertices[0].x;
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sp18.y = tile->vertices[2].y - tile->vertices[0].y;
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sp18.z = tile->vertices[2].z - tile->vertices[0].z;
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sp0c.x = sp24.f[1] * sp18.f[2] - sp24.f[2] * sp18.f[1];
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sp0c.y = sp24.f[2] * sp18.f[0] - sp24.f[0] * sp18.f[2];
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sp0c.z = sp24.f[0] * sp18.f[1] - sp24.f[1] * sp18.f[0];
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tmp = sp0c.f[0] * tile->vertices[0].f[0]
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+ sp0c.f[1] * tile->vertices[0].f[1]
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+ sp0c.f[2] * tile->vertices[0].f[2];
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if (sp0c.f[1] == 0) {
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return tile->vertices[tile->ymax].y;
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}
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ground = (tmp - (f64)x * (f64)sp0c.f[0] - (f64)z * (f64)sp0c.f[2]) / (f64)sp0c.f[1];
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if (ground > tile->vertices[tile->ymax].y) {
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ground = tile->vertices[tile->ymax].y;
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} else if (ground < tile->vertices[tile->ymin].y) {
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ground = tile->vertices[tile->ymin].y;
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}
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return ground;
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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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