44 lines
1.0 KiB
C
44 lines
1.0 KiB
C
#include "./bullet.h"
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#include <assert.h>
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#include <stdbool.h>
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#include <stddef.h>
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#include "util/coly2d/shape.h"
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#include "util/math/algorithm.h"
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#include "util/math/vector.h"
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#include "core/locommon/position.h"
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#include "./decl.private.h"
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bool loentity_bullet_affect(
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loentity_bullet_t* bullet, loentity_character_t* chara) {
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assert(bullet != NULL);
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assert(chara != NULL);
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assert(bullet->vtable.affect != NULL);
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return bullet->vtable.affect(bullet, chara);
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}
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bool loentity_bullet_hittest(
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const loentity_bullet_t* bullet,
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const locommon_position_t* point,
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const vec2_t* velocity,
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float dt) {
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assert(bullet != NULL);
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assert(locommon_position_valid(point));
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assert(vec2_valid(velocity));
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assert(MATH_FLOAT_VALID(dt));
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vec2_t st;
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locommon_position_sub(&st, point, &bullet->super.pos);
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vec2_t ed;
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vec2_sub(&ed, velocity, &bullet->velocity);
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vec2_muleq(&ed, dt);
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vec2_addeq(&ed, &st);
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return coly2d_shape_hittest_lineseg(&bullet->shape, &st, &ed);
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}
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