[Reverse-engineering] [th05] Custom entity structure
On the surface, TH05 uses one single 26-byte structure for
• the Stage 2 starfield,
• Alice's puppets,
• curve bullet heads,
• Mai's snowballs and Yuki's fireballs,
• Yumeko's knives,
• and Shinki's 32×32 bullets.
But looking closer, it turns out that the fields of all these have very
different semantics, and in some cases, even different types. uth05win
treated all of those as distinct structures, and we're going to do the
same, merely overlaying the pointers onto the same generic array.
Part of P0078, funded by iruleatgames and -Tom-.
2020-02-25 21:02:44 +00:00
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CUSTOM_COUNT = 64
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custom_t struc
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db 26 dup (?)
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custom_t ends
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2020-02-26 21:24:36 +00:00
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; Stage 2 star particles
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; ----------------------
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S2PARTICLE_COUNT = 64
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S2PARTICLE_W = 16
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S2PARTICLE_H = 16
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s2particle_t struc
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flag db ?
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S2P_angle db ?
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pos motion_t <?>
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zoom dw ?
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dw 5 dup (?)
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s2particle_t ends
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s2particles equ <_custom_entities>
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; ----------------------
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2020-02-26 19:48:02 +00:00
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; Alice's puppets
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; ---------------
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PUPPET_COUNT = 2
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PUPPET_W = 32
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PUPPET_H = 32
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PUPPET_HP = 500
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puppet_t struc
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flag db ?
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PUPPET_angle db ?
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pos motion_t <?>
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phase_frame dw ?
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radius_motion label word
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radius_gather label word
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dw ?
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PUPPET_patnum dw ?
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PUPPET_hp_cur dw ? ; _cur to avoid a collision with PUPPET_HP
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PUPPET_damage_this_frame dw ?
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dw ?
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puppet_t ends
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puppets equ <_custom_entities>
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puppet0 equ <puppets[0 * size puppet_t]>
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puppet1 equ <puppets[1 * size puppet_t]>
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; ---------------
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2020-02-26 22:37:53 +00:00
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; Curve bullets
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; -------------
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curvebullet_template_t struc
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db ?
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CBTMPL_angle db ?
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pos motion_t <?>
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CBTMPL_age dw ?
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dw ?
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CBTMPL_col dw ?
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dd ?
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CBTMPL_speed db ?
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db ?
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curvebullet_template_t ends
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curvebullet_head_t struc
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flag db ?
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CBH_angle db ?
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pos motion_t <?>
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CBH_age dw ?
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dw ?
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CBH_sprite dw ?
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dd ?
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CBH_speed db ?
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db ?
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curvebullet_head_t ends
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curvebullet_template equ <_custom_entities>
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curvebullet_heads equ <_custom_entities[1 * size curvebullet_head_t]>
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; -------------
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2020-02-27 20:06:35 +00:00
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; Mai's and Yuki's 32×32 balls
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; ----------------------------
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B4BALL_COUNT = 63
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B4BALL_W = 32
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B4BALL_H = 32
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b4ball_t struc
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flag db ?
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B4B_angle db ?
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pos motion_t <?>
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B4B_age dw ?
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B4B_revenge dw ?
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B4B_patnum_tiny_base dw ?
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B4B_hp dw ?
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B4B_damaged_this_frame dw ?
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B4B_speed db ?
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db ?
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b4ball_t ends
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b4ball_template equ <_custom_entities>
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b4balls equ <_custom_entities[1 * size b4ball_t]>
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; ------------------------------
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2020-02-28 13:23:02 +00:00
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; Yumeko's knives
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; ---------------
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KNIFE_COUNT = 63
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KNIFE_W = 32
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KNIFE_H = 32
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knife_t struc
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flag db ?
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KNIFE_angle db ?
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pos motion_t <?>
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twirl_time dw ?
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dw ?
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KNIFE_patnum_tiny dw ?
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KNIFE_decay_frames dw ?
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dw ?
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KNIFE_speed db ?
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db ?
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knife_t ends
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knife_template equ <_custom_entities>
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knives equ <_custom_entities[1 * size knife_t]>
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; ---------------
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[Reverse-engineering] [th05] Custom entity structure
On the surface, TH05 uses one single 26-byte structure for
• the Stage 2 starfield,
• Alice's puppets,
• curve bullet heads,
• Mai's snowballs and Yuki's fireballs,
• Yumeko's knives,
• and Shinki's 32×32 bullets.
But looking closer, it turns out that the fields of all these have very
different semantics, and in some cases, even different types. uth05win
treated all of those as distinct structures, and we're going to do the
same, merely overlaying the pointers onto the same generic array.
Part of P0078, funded by iruleatgames and -Tom-.
2020-02-25 21:02:44 +00:00
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public _custom_entities
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