View source for Complex Height Data from unit misc data and coordinates

=== Instructions and notes ===
 Parameters : r4 = Unit misc data pointer
              r5 = Previous routine stack pointer
                       - 0x00 (X coord.)*28 + Value
                       - 0x02 (Unit tile elevation)					   
                       - 0x04 (Y coord.)*28 + Value
 Returns : r2 = [[#0007d0d4Details|'''Complex height data as negative number''']] depending of
                   - Tile data height/depth/slope
                   - Unit sprite height/riding/float/dead/movement skill (on water)
                   - Unit effect (misc data 0x06)
                   - Unit sprite animation (misc data 0x1dc)
 -----------------------------------------------------------------
 0007d0d4: 27bdffd8 addiu r29,r29,-0x0028    |
 0007d0d8: afb20020 sw r18,0x0020(r29)       |
 0007d0dc: 00809021 addu r18,r4,r0           |{{f/std|<nowiki>r18 = Unit's Misc Data Pointer</nowiki>}}
 0007d0e0: afb1001c sw r17,0x001c(r29)       |
 0007d0e4: 00a08821 addu r17,r5,r0           |{{f/std|<nowiki>r17 = PR Stack Pointer</nowiki>}}
 0007d0e8: afbf0024 sw r31,0x0024(r29)       |
 0007d0ec: afb00018 sw r16,0x0018(r29)       |
 0007d0f0: 9245011e lbu r5,0x011e(r18)       |{{f/load|<nowiki>r5 = unit ID +1 (?)</nowiki>}}
 0007d0f4: 00000000 nop                      |
 0007d0f8: 10a00012 beq r5,r0,0x0007d144     {{f/Cond|<nowiki>If unit ID +1 <> 0x00</nowiki>}} {{f/Cond|<nowiki>Branch if ? Unit ID = 0</nowiki>}}
 0007d0fc: 27a40010 addiu r4,r29,0x0010           |{{f/std|<nowiki>r4 = Stack Pointer + 0x10</nowiki>}}
 0007d100: 0c05f056 jal 0x0017c158                |{{f/jal|Calculate_Height_Data|<nowiki>Calculate_Height_Data</nowiki>}} Return ID + flag + Coord + Height data on stack (stack is r2 = r29 0x10 here)
 0007d104: 24a5ffff addiu r5,r5,-0x0001           |{{f/std|<nowiki>r5 = Unit ID</nowiki>}}
 0007d108: 93a20013 lbu r2,0x0013(r29)            |{{f/load|<nowiki>r2 = Unit ID (from jal)</nowiki>}}
 0007d10c: 00000000 nop                           |
 0007d110: 30420080 andi r2,r2,0x0080             |{{f/std|<nowiki>r2 = 0x80 if Unit is invalid/dead/crystal/treasure </nowiki>}}
 0007d114: 1440000b bne r2,r0,0x0007d144          {{f/Cond|<nowiki>If Unit ID is valid/alive</nowiki>}}
 0007d118: 00000000 nop                               |{{f/std|<nowiki> </nowiki>}}
 0007d11c: 93a20016 lbu r2,0x0016(r29)                |{{f/load|<nowiki>r2 = Total height (tile height + unit height)</nowiki>}}
 0007d120: 00000000 nop                               |
 0007d124: 00021023 subu r2,r0,r2                     |{{f/std|<nowiki>r2 = -Total height</nowiki>}}
 0007d128: 00021fc2 srl r3,r2,0x1f                    |{{f/std|<nowiki>r3 = 0x01 if r2 is < 0x00</nowiki>}}
 0007d12c: 00431021 addu r2,r2,r3                     |{{f/std|<nowiki>r2 = - total height + 1</nowiki>}}
 0007d130: 00021043 sra r2,r2,0x01                    |{{f/std|<nowiki>(- Total Height + 1) / 2</nowiki>}}
 0007d134: 00021840 sll r3,r2,0x01                    |{{f/std|<nowiki>(-Total Height + 1) even number (down rounded)</nowiki>}}
 0007d138: 00621821 addu r3,r3,r2                     |{{f/std|<nowiki>(- Total Height + 1) / 2 * 3</nowiki>}}
 0007d13c: 0801f455 j 0x0007d154                      |'''jump after slope calculation'''
 0007d140: 00038080 sll r16,r3,0x02                   |{{f/std|<nowiki>r16 = (-Total Height + 1) *6</nowiki>}} {{f/std|<nowiki>(default is Tile height * 12 + halves*6 + unit height*6)</nowiki>}}
 0007d144: 92250002 lbu r5,0x0002(r17)            |{{f/load|<nowiki>r5 = unit elevation (from PR stack pointer)</nowiki>}}
 0007d148: 0c01f203 jal 0x0007c80c                |{{f/jal|Slope Calculations|<nowiki>Slope Calculations</nowiki>}} returns r2 =  -(Tile height * 12 + halves*Value/28)   (Value is set in previous routine, may be 14 so halves*6)
 0007d14c: 02202021 addu r4,r17,r0                |{{f/adr|<nowiki>r4 = PR Stack Pointer</nowiki>}}
 0007d150: 00408021 addu r16,r2,r0                |{{f/std|<nowiki>r16 = Zmod (from height and slope)</nowiki>}}
 0007d154: 8e420134 lw r2,0x0134(r18)             |{{f/adr|<nowiki>r2 = Unit Data pointer</nowiki>}}
 0007d158: 00000000 nop                           |
 0007d15c: 10400052 beq r2,r0,0x0007d2a8          {{f/Cond|<nowiki>If Unit data pointer is valid</nowiki>}} /Else branch to near end (no depht calculation)
 0007d160: 3c079249 lui r7,0x9249                     |{{f/std|<nowiki> </nowiki>}}
 0007d164: 96220000 lhu r2,0x0000(r17)                |{{f/load|<nowiki>r2 = unit X mod</nowiki>}} {{f/std|<nowiki>(X coord *28)+14</nowiki>}}
 0007d168: 34e72493 ori r7,r7,0x2493                  |{{f/std|<nowiki>r7 = (-3/7)*2^32</nowiki>}}
 0007d16c: 00021400 sll r2,r2,0x10                    |
 0007d170: 00022c03 sra r5,r2,0x10                    |{{f/std|<nowiki>r5 = Unit X mod (upper register cleared)</nowiki>}}
 0007d174: 00a70018 mult r5,r7                        |{{f/std|<nowiki>Unit X mod * (-3/7)*2^32</nowiki>}}
 0007d178: 96230004 lhu r3,0x0004(r17)                |{{f/load|<nowiki>r3 =  Unit Y mod</nowiki>}} {{f/std|<nowiki>(Y coord *28)+14</nowiki>}}
 0007d17c: 00002010 mfhi r4                           |{{f/std|<nowiki>r4 = Unit X mod * -3/7</nowiki>}}
 0007d180: 00031c00 sll r3,r3,0x10                    |
 0007d184: 00033403 sra r6,r3,0x10                    |{{f/std|<nowiki>r6 = Unit Y mod (upper register cleared)</nowiki>}}
 0007d188: 00c70018 mult r6,r7                        |{{f/std|<nowiki>Unit Y mod * (-3/7)*2^32</nowiki>}}
 0007d18c: 000217c3 sra r2,r2,0x1f                    |{{f/std|<nowiki>r2 = 0x00 (technically 0x01 if X mod > 2^31)</nowiki>}}
 0007d190: 00031fc3 sra r3,r3,0x1f                    |{{f/std|<nowiki>r3 = 0x00</nowiki>}}
 0007d194: 00852021 addu r4,r4,r5                     |{{f/std|<nowiki>r4 = Unit X mod * 4/7</nowiki>}}
 0007d198: 00042103 sra r4,r4,0x04                    |{{f/std|<nowiki>r4 = Unit X mod / 28 ( = Unit X coord)</nowiki>}}
 0007d19c: 00822023 subu r4,r4,r2                     |{{f/std|<nowiki>r4 = r4 -0x00</nowiki>}}
 0007d1a0: 00042400 sll r4,r4,0x10                    |
 0007d1a4: 00042403 sra r4,r4,0x10                    |{{f/std|<nowiki>r4 = Unit X coord (rounded and upper register cleared)</nowiki>}}
 0007d1a8: 00002810 mfhi r5                           |{{f/std|<nowiki>r5= Unit Y mod * -3/7</nowiki>}}
 0007d1ac: 00a62821 addu r5,r5,r6                     |{{f/std|<nowiki>r5= Unit Y mod * 4/7</nowiki>}}
 0007d1b0: 00052903 sra r5,r5,0x04                    |{{f/std|<nowiki>r5 = Unit Y mod / 28 ( = Unit Y coord)</nowiki>}}
 0007d1b4: 00a32823 subu r5,r5,r3                     |
 0007d1b8: 00052c00 sll r5,r5,0x10                    |
 0007d1bc: 86260002 lh r6,0x0002(r17)                 |{{f/load|<nowiki>r6 = Unit Elevation</nowiki>}}
 0007d1c0: 0c060fed jal 0x00183fb4                    |{{f/jal|Get_Tile_Data_Pointer|<nowiki>Get_Tile_Data_Pointer</nowiki>}} return r2 = Tile data pointer
 0007d1c4: 00052c03 sra r5,r5,0x10                    |{{f/std|<nowiki>r5 = Unit Y coord (rounded and upper register cleared)</nowiki>}}
 0007d1c8: 00408821 addu r17,r2,r0                    |{{f/std|<nowiki>r17 = Unit tile data pointer</nowiki>}}
 0007d1cc: 92220003 lbu r2,0x0003(r17)                |{{f/load|<nowiki>r2 = Unit Tile Hieght + depht</nowiki>}}
 0007d1d0: 00000000 nop                               |
 0007d1d4: 304200e0 andi r2,r2,0x00e0                 |{{f/std|<nowiki>r2 = Unit Tile depht</nowiki>}}
 0007d1d8: 10400033 beq r2,r0,0x0007d2a8              {{f/Cond|<nowiki>If depht <> 0x00</nowiki>}} /Else branch near end (no depht modification)
 0007d1dc: 00000000 nop                                   |{{f/std|<nowiki> </nowiki>}}
 0007d1e0: 8e440134 lw r4,0x0134(r18)                     |{{f/adr|<nowiki>r4 = Unit data pointer</nowiki>}}
 0007d1e4: 0c05fc08 jal 0x0017f020                        |{{f/jal|Float/Float/Fly movements|<nowiki>Float/Float/Fly movements</nowiki>}} Returns r2 holding flags depending on movement skills
 0007d1e8: 00000000 nop                                   |
 0007d1ec: 00402021 addu r4,r2,r0                         |{{f/std|<nowiki>r4 = Movements flags</nowiki>}}
 0007d1f0: 30820040 andi r2,r4,0x0040                     |{{f/std|<nowiki>r2 = 0x40 if unit uses/have float</nowiki>}}
 0007d1f4: 964301dc lhu r3,0x01dc(r18)                    |{{f/load|<nowiki>r3 = Unit current animation</nowiki>}}
 0007d1f8: 92450006 lbu r5,0x0006(r18)                    |{{f/load|<nowiki>r5 = Unit spritesheet ID</nowiki>}}
 0007d1fc: 14400020 bne r2,r0,0x0007d280                  {{f/Cond|<nowiki>If unit don't use float</nowiki>}} /Else branch (will add depht to height)
 0007d200: 00031842 srl r3,r3,0x01                        |{{f/std|<nowiki>r3 = Unit current animation/2 (?)</nowiki>}}
 0007d204: 30820020 andi r2,r4,0x0020                         |{{f/std|<nowiki>r2 = 0x20 if unit uses move on water</nowiki>}}
 0007d208: 1440001d bne r2,r0,0x0007d280                      {{f/Cond|<nowiki>If unit doesn't uses move on water</nowiki>}} /Else branch (will add depht to height)
 0007d20c: 24a2ff64 addiu r2,r5,-0x009c                           |{{f/std|<nowiki>r2 = Unit spritesheet ID - 0x9c</nowiki>}}
 0007d210: 2c420002 sltiu r2,r2,0x0002                            |{{f/std|<nowiki>r2 = 0x01 if unit sprite ID was 0x9c or 0x9d (EFF1 and EFF2 ?)</nowiki>}}
 0007d214: 1040000b beq r2,r0,0x0007d244                          {{f/Cond|<nowiki>If EFF spritesheet</nowiki>}}
 0007d218: 30820010 andi r2,r4,0x0010                             |{{f/std|<nowiki>r2 = 0x10 if unit uses walk in water</nowiki>}}
 0007d21c: 92230003 lbu r3,0x0003(r17)                                |{{f/load|<nowiki>r3 = Unit tile halves + depht</nowiki>}}
 0007d220: 26040004 addiu r4,r16,0x0004                               |{{f/std|<nowiki>r4 = -(Height data) + 0x04 (minoring height)</nowiki>}}
 0007d224: 00031942 srl r3,r3,0x05                                    |{{f/std|<nowiki>r3 = Unit tile effective depht  (Unit tile halves + depht)/32   (only keep depht data : 0x80 = 0x04)</nowiki>}}
 0007d228: 00031040 sll r2,r3,0x01                                    |{{f/std|<nowiki>r2 = Unit Tile effective depht * 2</nowiki>}}
 0007d22c: 00431021 addu r2,r2,r3                                     |{{f/std|<nowiki>r2 = Unit Tile effective depht * 3</nowiki>}}
 0007d230: 96430074 lhu r3,0x0074(r18)                                |{{f/load|<nowiki>r3 = ?? From misc unit data (height related)</nowiki>}}
 0007d234: 00021080 sll r2,r2,0x02                                    |{{f/std|<nowiki>r2 = Unit tile effective depht * 12</nowiki>}}
 0007d238: 00431021 addu r2,r2,r3                                     |{{f/std|<nowiki>r2 = Unit tile depht * 12 + Unit Height related value</nowiki>}}
 0007d23c: 0801f4ae j 0x0007d2b8                                      {{f/jump|<nowiki>Jump</nowiki>}}
 0007d240: 00828023 subu r16,r4,r2                                    |{{f/std|<nowiki>r16 = (Final Height data)  =  -(Total Height data) -( Tile Depht * 12 + Unit height related value)</nowiki>}}
 0007d244: 14400004 bne r2,r0,0x0007d258                          {{f/Cond|<nowiki> Else if unit don't use move in water</nowiki>}} {{f/Cond|<nowiki>(Spritesheet is not WEP1 nor WEP2)</nowiki>}}
 0007d248: 00000000 nop                                               |{{f/std|<nowiki> </nowiki>}}
 0007d24c: 3402001a ori r2,r0,0x001a                                  |{{f/std|<nowiki> r2 = 0x1a</nowiki>}}
 0007d250: 14620006 bne r3,r2,0x0007d26c                              {{f/Cond|<nowiki>If unit animation/2 = 0x1a </nowiki>}} {{f/std|<nowiki>(animation 0x34 = dying, 0x35 been raised)</nowiki>}}
 0007d254: 00000000 nop                                                   |{{f/std|<nowiki> </nowiki>}}
 0007d258: 92220003 lbu r2,0x0003(r17)                            {{f/Cond|<nowiki>E</nowiki>}}      |{{f/load|<nowiki>r2 = Unit tile halves + depht</nowiki>}} (or Unit move in water)
 0007d25c: 00000000 nop                                                   |{{f/std|<nowiki> </nowiki>}}
 0007d260: 00021142 srl r2,r2,0x05                                        |{{f/std|<nowiki>r2 = Unit tile effective depht  (Unit tile halves + depht)/32   (only keep depht data : 0x80 = 0x04)</nowiki>}}
 0007d264: 0801f4a3 j 0x0007d28c                                          {{f/jump|<nowiki>jump to *12 section (depht is downed by 1)</nowiki>}}
 0007d268: 2442ffff addiu r2,r2,-0x0001                                   |{{f/std|<nowiki>r2 = Unit tile effective depht - 1 </nowiki>}}
 0007d26c: 3402009e ori r2,r0,0x009e                                  {{f/Cond|<nowiki>Else (animation/2 <> 0x1a)</nowiki>}} {{f/std|<nowiki>r2 = 0x9e</nowiki>}}
 0007d270: 10a20003 beq r5,r2,0x0007d280                              {{f/Cond|<nowiki>If spritesheet ID <> 0x9e (not trap ?)</nowiki>}}
 0007d274: 3402009b ori r2,r0,0x009b                                      |{{f/std|<nowiki>r2 = 0x009b</nowiki>}}
 0007d278: 14a2000b bne r5,r2,0x0007d2a8                                  {{f/Cond|<nowiki>If spritesheet ID = 0x9b (WEP2 ?)</nowiki>}}
 0007d27c: 00000000 nop                                                   |{{f/std|<nowiki>  </nowiki>}} {{f/std|<nowiki> </nowiki>}}
 0007d280: 92220003 lbu r2,0x0003(r17)                    {{f/Cond|<nowiki>E</nowiki>}} {{f/Cond|<nowiki>E</nowiki>}} {{f/Cond|<nowiki>E</nowiki>}}            |{{f/load|<nowiki>r2 = Unit tile halves + depht</nowiki>}} (Unit floating, moving on water,trap, WEP2)
 0007d284: 00000000 nop                                                       |{{f/std|<nowiki> </nowiki>}}
 0007d288: 00021142 srl r2,r2,0x05                                            |{{f/std|<nowiki>r2 = Effective depht</nowiki>}}
 0007d28c: 00021840 sll r3,r2,0x01                                            |{{f/std|<nowiki>r3 = Effective depht * 2</nowiki>}} (dying, raised landing location)
 0007d290: 00621821 addu r3,r3,r2                                             |{{f/std|<nowiki>r3 = Effective depht * 3</nowiki>}}
 0007d294: 96420074 lhu r2,0x0074(r18)                                        |{{f/load|<nowiki>2 = ?? From misc unit data (height related)</nowiki>}}
 0007d298: 00031880 sll r3,r3,0x02                                            |{{f/std|<nowiki>r3 = Effective depht * 12</nowiki>}}
 0007d29c: 00621821 addu r3,r3,r2                                             |{{f/std|<nowiki>r3 = Effective depht * 12 + Unit height related value</nowiki>}}
 0007d2a0: 0801f4ae j 0x0007d2b8                                              {{f/jump|<nowiki>Jump to end</nowiki>}}
 0007d2a4: 02038023 subu r16,r16,r3                                           |r16 = Final Height data = -(Total height data + depht *12 + unit height related value)
 0007d2a8: 96420074 lhu r2,0x0074(r18)            {{f/Cond|<nowiki>E</nowiki>}} {{f/Cond|<nowiki>E</nowiki>}}                   {{f/Cond|<nowiki>Else</nowiki>}} {{f/load|<nowiki>r2 = ?? From misc unit data</nowiki>}} {{f/std|<nowiki>(Invalid Unit data pointer, no depht, spritesheet <> 0x9b)</nowiki>}}
 0007d2ac: 00000000 nop                           |{{f/std|<nowiki> </nowiki>}} {{f/std|<nowiki> </nowiki>}}
 0007d2b0: 02021023 subu r2,r16,r2                |{{f/std|<nowiki>r2 = -(Total height data + unit height related value)</nowiki>}}
 0007d2b4: 00408021 addu r16,r2,r0                |{{f/std|<nowiki>r16 =  -(Total height data + unit height related value)</nowiki>}}
 0007d2b8: 00101400 sll r2,r16,0x10               |{{f/std|<nowiki>r2 = -(Final Height data)*1024</nowiki>}} (landing site of depht managing)
 0007d2bc: 00021403 sra r2,r2,0x10                |r2 = -(Final Height data) {{f/std|<nowiki> (register cleanup)</nowiki>}}
 0007d2c0: 8fbf0024 lw r31,0x0024(r29)            |
 0007d2c4: 8fb20020 lw r18,0x0020(r29)            |
 0007d2c8: 8fb1001c lw r17,0x001c(r29)            |
 0007d2cc: 8fb00018 lw r16,0x0018(r29)            |
 0007d2d0: 27bd0028 addiu r29,r29,0x0028          |
 0007d2d4: 03e00008 jr r31                        '''END'''
 0007d2d8: 00000000 nop
=== Details ===
 '''Data is returned as a negative number''' <span ID = "0007d0d4Details"></span>
 
 '''Basic Height Data'''
 - Default : -(Tile height * 12 + Halves * 6 + unit height*6) (if floating effective height + 1 )
 - Unit Dead/treasure/crystal or invalid : slope calc (if preset is 14 = -(Height*12 + Halves*6))
 
 '''Final height data (order matters)'''
 - Float/ Move on water 
     = Height data + Depht *12 + Unit misc 0x74
 - If Unit Unit spritesheet (misc 0x06) = EFF1 or EFF2
     = (Height data -4) + Depht *12 + Unit misc 0x74 
 - Move in water or Unit animation = dying or raised [(misc 0x1dc)/2 = 0x1a]
     = Height data + (Depht-1)*12 + Unit misc 0x74 
 - Unit spritesheet (misc 0x06) if WEP2 or Trap
     = Height data + Depht *12 + Unit misc 0x74
 - Else or unit invalid (not floating, not on/in water, not EFF1, EFF2, WEP2, Trap , not dying or raised)
     = Height data
   
 '''Rq''' unit misc 0x74 might be related to depht (if not, depht will be added twice as it is already count in Default height data)

=== Return locations ===
 0007d30c: [[0007d2dc_-_0007d34c]]
 0007d3b4: [[0007d350_-_0007d3f0]]
 0007d438: [[0007d3f4_-_0007d474]]
 0007d4dc: [[0007d478_-_0007d518]]
 0007d590: [[Get_Final_Height_data_from_unit_misc_data]]  X and Y preset values = 14