93 lines
2.6 KiB
C
93 lines
2.6 KiB
C
//---
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// aoe: Physical entities tracking areas of effect of skills
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//---
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#pragma once
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#include "geometry.h"
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#include "anim.h"
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#include "item.h"
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enum {
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/* Item */
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AOE_ITEM,
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/* Bare-hand fist/close-contact attack */
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AOE_HIT,
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/* Simple ranged attack */
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AOE_PROJECTILE,
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AOE_PROJECTILE_FAST,
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/* Normal attack by a slashing weapon */
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AOE_SLASH,
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/* Impaling attack using a slashing weapon */
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AOE_IMPALE,
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/* Skills */
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AOE_SHOCK,
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AOE_JUDGEMENT,
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AOE_BULLET,
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AOE_FIRE_CHARGE,
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AOE_WATER_CHARGE,
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AOE_CHEMICAL_CHARGE,
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/* Spawn effect */
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EFFECT_SPAWN,
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};
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/* Record of when an area hit an entity */
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typedef struct
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{
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/* Entity hit */
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entity_t *entity;
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/* Lifetime of the area at the time of the hit */
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fixed_t lifetime;
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} aoe_record_t;
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/* Extra component for areas of effect */
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typedef struct
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{
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/* Lifetime (s) */
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fixed_t lifetime;
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/* Effect repeat delay (seconds; 0 for no repeat) */
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fixed_t repeat_delay;
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/* List of entities that were hit */
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aoe_record_t *hits;
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int hit_count;
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/* Entity that caused the area */
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entity_t *origin;
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/* Type of effect */
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uint16_t type;
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/* Effect data (type-dependent) */
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union {
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/* Item: item info */
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struct { int type; } item;
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/* Generic attacks: source and ATK strength */
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struct { int strength; int dir; } generic;
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/* AOE_PROJECTILE, AOE_PROJECTILE_FAST: speed and direction */
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struct { int strength; vec2 direction; fixed_t speed; } projectile;
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/* AOE_SHOCK: origin and ATK strength */
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struct { int strength; vec2 origin; } shock;
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/* AOE_BULLET: magic strengh, speed parameters */
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struct { int strength; int dir; fixed_t v; fixed_t final_v; } bullet;
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/* AOE_*_CHARGE: element type, origin and MAG power */
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struct { int element; int power; vec2 origin; } charge;
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} data;
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} aoe_t;
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/* Create a new area of the specified type. The animation, repeat delay, origin
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and type-specific data should be set manually after creation. */
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entity_t *aoe_make(uint16_t type, vec2 position, fixed_t lifetime);
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/* Free resources for an area. */
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void aoe_destroy(entity_t *aoe);
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/* Create an area for a particular attack; all attributes are initialized. */
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entity_t *aoe_make_attack(uint16_t type, entity_t *origin, vec2 dir);
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entity_t *aoe_make_attack_4(uint16_t type, entity_t *origin, int facing);
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/* Apply effect of area on entity */
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struct game;
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void aoe_apply(struct game *g, entity_t *aoe, entity_t *e);
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/* Regular update, for moving areas (eg. bullet) */
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void aoe_update(struct game *g, entity_t *aoe, fixed_t dt);
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