149 lines
4.5 KiB
C
149 lines
4.5 KiB
C
//---
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// anim: Renderer's animations
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//
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// Animations in this engine are simply linked variants of sprites. Animated
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// images change over time, moving from frame to frame, and that's it.
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//---
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#pragma once
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#include <stdint.h>
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#include "fixed.h"
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#include <gint/display.h>
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typedef struct anim_frame
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{
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/* Sheet */
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bopti_image_t const *sheet;
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/* Box for the frame within the sheet */
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uint8_t x, y, w, h;
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/* Position of center for this frame */
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int8_t cx, cy;
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/* Duration of the frame (ms) */
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uint16_t duration;
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/* Next frame */
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struct anim_frame *next;
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} anim_frame_t;
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typedef struct
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{
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/* Number of directions
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1: Basic sprite
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2: LEFT and RIGHT (enemies)
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4: UP, RIGHT, DOWN and LEFT (player, some attacks) */
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int directions;
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/* First frame for each direction */
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anim_frame_t *start[];
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} anim_t;
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typedef struct
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{
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/* Current frame */
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anim_frame_t const *frame;
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/* Time elapsed */
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uint16_t elapsed;
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} anim_state_t;
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/* Duration of an animation, in seconds; assumed unique for all directions */
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fixed_t anim_duration(anim_t const *anim);
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/* Check if a frame is in an animation. */
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bool anim_in(anim_frame_t const *frame, anim_t const *anim, int index);
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/* Render a frame at the center position (x,y), similar to dimage(). */
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void anim_frame_render(int x, int y, anim_frame_t const *frame);
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/* Render a subimage of a frame, similar to dsubimage(). */
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void anim_frame_subrender(int x, int y, anim_frame_t const *frame, int left,
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int top, int width, int height);
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/* Update an animation to next frame. Returns true if the update transitioned
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to another animation. */
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bool anim_state_update(anim_state_t *state, fixed_t dt);
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/* List of animations. */
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/* Basic skills */
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extern anim_t anims_skill_hit;
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extern anim_t anims_skill_projectile;
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extern anim_t anims_skill_teleport;
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extern anim_t anims_skill_shock;
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extern anim_t anims_skill_judgement;
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/* Directional skills */
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extern anim_t anims_skill_swing;
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extern anim_t anims_skill_impale;
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extern anim_t anims_skill_bullet;
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/* Enemies */
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#define ANIM_ENEMIES(MACRO) \
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ANIM_E1(MACRO, slime, Idle, Walking, Attack, Fire, Hit, Death) \
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ANIM_E1(MACRO, fire_slime, Idle, Walking, Attack, Fire, Hit, Death) \
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ANIM_E1(MACRO, water_slime, Idle, Walking, Attack, Fire, Hit, Death) \
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ANIM_E1(MACRO, chemical_slime, Idle, Walking, Attack, Fire, Hit, Death) \
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ANIM_E1(MACRO, bat, Idle, Hit, Death) \
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ANIM_E1(MACRO, albinos_bat, Idle, Hit, Death) \
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ANIM_E1(MACRO, crimson_bat, Idle, Hit, Death) \
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ANIM_E1(MACRO, gunslinger, Idle, Walking, Fire, Hit, Death) \
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ANIM_E1(MACRO, gb_gunslinger, Idle, Walking, Fire, Hit, Death) \
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ANIM_E1(MACRO, master_gunslinger, Idle, Walking, Fire,Hit,Death) \
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ANIM_E1(MACRO, tifucile, Idle, Walking, Hit, Death) \
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ANIM_E1(MACRO, washing_machine, Idle, Walking, Attack, Hit, Death)
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/* Player */
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extern anim_t anims_player_Idle;
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extern anim_t anims_player_Walking;
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extern anim_t anims_player_Attack;
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extern anim_t anims_player_Hit;
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extern anim_t anims_player_KO;
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extern anim_t anims_player_IdleKO;
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/* HUD */
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extern anim_t anims_hud_xp_Idle;
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extern anim_t anims_hud_xp_Shine;
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extern anim_t anims_hud_xp_Explode;
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extern anim_t anims_hud_backpack_Idle;
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extern anim_t anims_hud_backpack_Open;
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extern anim_t anims_hud_backpack_InventoryIdle;
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extern anim_t anims_hud_backpack_InventoryOpen;
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extern anim_t anims_hud_backpack_InventoryClose;
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/* Items */
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extern anim_t anims_item_life;
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extern anim_t anims_item_chest;
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extern anim_t anims_item_potion_atk;
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extern anim_t anims_item_potion_cooldown;
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extern anim_t anims_item_potion_def;
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extern anim_t anims_item_potion_frz;
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extern anim_t anims_item_potion_hp;
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extern anim_t anims_item_potion_spd;
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extern anim_t anims_item_stick1;
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extern anim_t anims_item_stick2;
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extern anim_t anims_item_sword1;
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extern anim_t anims_item_sword2;
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extern anim_t anims_item_armor1;
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extern anim_t anims_item_buff;
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/* Expand definitions for enemies */
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#define ANIM_E1(MACRO, ENEMY, SEQ, ...) \
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MACRO(ENEMY, SEQ) __VA_OPT__(ANIM_E2(MACRO, ENEMY, __VA_ARGS__))
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#define ANIM_E2(MACRO, ENEMY, SEQ, ...) \
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MACRO(ENEMY, SEQ) __VA_OPT__(ANIM_E3(MACRO, ENEMY, __VA_ARGS__))
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#define ANIM_E3(MACRO, ENEMY, SEQ, ...) \
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MACRO(ENEMY, SEQ) __VA_OPT__(ANIM_E4(MACRO, ENEMY, __VA_ARGS__))
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#define ANIM_E4(MACRO, ENEMY, SEQ, ...) \
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MACRO(ENEMY, SEQ) __VA_OPT__(ANIM_E5(MACRO, ENEMY, __VA_ARGS__))
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#define ANIM_E5(MACRO, ENEMY, SEQ, ...) \
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MACRO(ENEMY, SEQ) __VA_OPT__(ANIM_E6(MACRO, ENEMY, __VA_ARGS__))
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#define ANIM_E6(MACRO, ENEMY, SEQ, ...) \
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MACRO(ENEMY, SEQ) __VA_OPT__(ANIM_ETOO_MANY_ARGS)
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#define ANIM_ENEMIES_PROTO(ENEMY, SEQ) \
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extern anim_t anims_ ## ENEMY ## _ ## SEQ;
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ANIM_ENEMIES(ANIM_ENEMIES_PROTO)
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