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solved corner case issue

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This commit is contained in:
Magnus Auvinen 2007-12-12 20:05:18 +00:00
parent f7ea0b2ba8
commit 7d79756443
2 changed files with 23 additions and 9 deletions
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22
src/game/game.cpp
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@ -75,20 +75,32 @@ void move_box(vec2 *inout_pos, vec2 *inout_vel, vec2 size, float elasticity)
vec2 new_pos = pos + vel*fraction; // TODO: this row is not nice vec2 new_pos = pos + vel*fraction; // TODO: this row is not nice
// make sure that we quantize. this is to make sure that when we set if(test_box(vec2(new_pos.x, new_pos.y), size))
// the final position that we don't move it into the ground.
if(test_box(vec2((int)new_pos.x,(int) new_pos.y), size))
{ {
if(test_box(vec2((int)pos.x, (int)new_pos.y), size)) int hits = 0;
if(test_box(vec2(pos.x, new_pos.y), size))
{ {
new_pos.y = pos.y; new_pos.y = pos.y;
vel.y *= -elasticity; vel.y *= -elasticity;
hits++;
} }
if(test_box(vec2((int)new_pos.x, (int)pos.y), size)) if(test_box(vec2(new_pos.x, pos.y), size))
{ {
new_pos.x = pos.x; new_pos.x = pos.x;
vel.x *= -elasticity; vel.x *= -elasticity;
hits++;
}
// neither of the tests got a collision.
// this is a real _corner case_!
if(hits == 0)
{
new_pos.y = pos.y;
vel.y *= -elasticity;
new_pos.x = pos.x;
vel.x *= -elasticity;
} }
} }

10
src/game/server/game_server.cpp
View file

@ -1011,7 +1011,6 @@ void player::tick_defered()
vec2 start_pos = core.pos; vec2 start_pos = core.pos;
vec2 start_vel = core.vel; vec2 start_vel = core.vel;
bool stuck_before = test_box(core.pos, vec2(28.0f, 28.0f)); bool stuck_before = test_box(core.pos, vec2(28.0f, 28.0f));
core.move(); core.move();
bool stuck_after_move = test_box(core.pos, vec2(28.0f, 28.0f)); bool stuck_after_move = test_box(core.pos, vec2(28.0f, 28.0f));
core.quantize(); core.quantize();
@ -1020,11 +1019,14 @@ void player::tick_defered()
if(!stuck_before && (stuck_after_move || stuck_after_quant)) if(!stuck_before && (stuck_after_move || stuck_after_quant))
{ {
dbg_msg("player", "STUCK!!! %f %f %f %f %x %x %x %x", dbg_msg("player", "STUCK!!! %d %d %d %f %f %f %f %x %x %x %x",
stuck_before,
stuck_after_move,
stuck_after_quant,
start_pos.x, start_pos.y, start_pos.x, start_pos.y,
start_vel.x, start_vel.y, start_vel.x, start_vel.y,
start_pos.x, start_pos.y, *((unsigned *)&start_pos.x), *((unsigned *)&start_pos.y),
start_vel.x, start_vel.y); *((unsigned *)&start_vel.x), *((unsigned *)&start_vel.y));
} }