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dragonblocks_alpha
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Correct acceleration calculation

master
Elias Fleckenstein 2021-07-10 15:11:14 +02:00
parent c6673be36d
commit 8a39835062
1 changed files with 9 additions and 9 deletions
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18
src/clientplayer.c
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@ -44,23 +44,23 @@ static bool collision(ClientPlayer *player)
void clientplayer_tick(ClientPlayer *player, f64 dtime)
{
v3f old_pos = player->pos;
v3f old_velocity = player->velocity;
#define CALC_PHYSICS(pos, velocity, old) \
pos += velocity * dtime; \
player->velocity.y -= 9.81f * dtime;
#define CALC_PHYSICS(pos, velocity, old_pos, old_velocity) \
pos += (velocity + old_velocity) / 2.0f * dtime; \
if (collision(player)) { \
pos = old; \
pos = old_pos; \
velocity = 0.0f; \
}
CALC_PHYSICS(player->pos.x, player->velocity.x, old_pos.x)
CALC_PHYSICS(player->pos.y, player->velocity.y, old_pos.y)
CALC_PHYSICS(player->pos.z, player->velocity.z, old_pos.z)
CALC_PHYSICS(player->pos.x, player->velocity.x, old_pos.x, old_velocity.x)
CALC_PHYSICS(player->pos.y, player->velocity.y, old_pos.y, old_velocity.y)
CALC_PHYSICS(player->pos.z, player->velocity.z, old_pos.z, old_velocity.z)
#undef CALC_PHYSICS
// gravity
player->velocity.y -= 9.81f * dtime;
if (old_pos.x != player->pos.x || old_pos.y != player->pos.y || old_pos.z != player->pos.z) {
clientplayer_send_pos(player);
set_camera_position((v3f) {player->pos.x, player->pos.y + player->eye_height, player->pos.z});