int w_Body_setMassData(lua_State *L)
{
Body *t = luax_checkbody(L, 1);
float x = (float)luaL_checknumber(L, 2);
float y = (float)luaL_checknumber(L, 3);
float m = (float)luaL_checknumber(L, 4);
float i = (float)luaL_checknumber(L, 5);
luax_catchexcept(L, [&](){ t->setMassData(x, y, m, i); });
return 0;
}
int w_Body_setMass(lua_State * L)
{
Body * t = luax_checkbody(L, 1);
float x = (float)luaL_checknumber(L, 2);
float y = (float)luaL_checknumber(L, 3);
float m = (float)luaL_checknumber(L, 4);
float i = (float)luaL_checknumber(L, 5);
t->setMass(x, y, m, i);
return 0;
}
int w_Body_getPosition(lua_State * L)
{
Body * t = luax_checkbody(L, 1);
float x_o, y_o;
t->getPosition(x_o, y_o);
lua_pushnumber(L, x_o);
lua_pushnumber(L, y_o);
return 2;
}
int w_Body_getLinearVelocity(lua_State * L)
{
Body * t = luax_checkbody(L, 1);
float x_o, y_o;
t->getLinearVelocity(x_o, y_o);
lua_pushnumber(L, x_o);
lua_pushnumber(L, y_o);
return 2;
}
int w_Body_getLocalCenter(lua_State * L)
{
Body * t = luax_checkbody(L, 1);
float x_o, y_o;
t->getLocalCenter(x_o, y_o);
lua_pushnumber(L, x_o);
lua_pushnumber(L, y_o);
return 2;
}
int w_Body_getLocalVector(lua_State * L)
{
Body * t = luax_checkbody(L, 1);
float x = (float)luaL_checknumber(L, 2);
float y = (float)luaL_checknumber(L, 3);
float x_o, y_o;
t->getLocalVector(x, y, x_o, y_o);
lua_pushnumber(L, x_o);
lua_pushnumber(L, y_o);
return 2;
}
int w_Body_getLinearVelocityFromLocalPoint(lua_State * L)
{
Body * t = luax_checkbody(L, 1);
float x = (float)luaL_checknumber(L, 2);
float y = (float)luaL_checknumber(L, 3);
float x_o, y_o;
t->getLinearVelocityFromLocalPoint(x, y, x_o, y_o);
lua_pushnumber(L, x_o);
lua_pushnumber(L, y_o);
return 2;
}
int Physics::newPolygonShape(lua_State * L)
{
int argc = lua_gettop(L);
int vcount = (int)(argc-1)/2;
// 1 body + 3 vertices
love::luax_assert_argc(L, 1 + (2 * 3));
Body * b = luax_checkbody(L, 1);
b2PolygonDef def;
def.friction = 0.5f;
def.restitution = 0.1f;
def.density = 1.0f;
std::vector<point2d> points(def.vertexCount);
std::vector<point2d> convex_hull;
for(int i = 0;i<vcount;i++)
{
float x = (float)lua_tonumber(L, -2);
float y = (float)lua_tonumber(L, -1);
point2d tmp(x, y);
points.push_back(tmp);
lua_pop(L, 2);
}
// Compute convex hull.
GrahamScanConvexHull()(points, convex_hull);
def.vertexCount = (int32)convex_hull.size();
if(def.vertexCount < 3)
return luaL_error(L, "Polygon degenerated to less than three points.");
for(int i = 0;i<def.vertexCount;i++)
def.vertices[def.vertexCount-i-1].Set((float)convex_hull[i].x, (float)convex_hull[i].y);
PolygonShape * p = new PolygonShape(b, &def);
luax_newtype(L, "PolygonShape", LOVE_PHYSICS_POLYGON_SHAPE_BITS, (void*)p);
return 1;
}
int w_Body_applyImpulse(lua_State * L)
{
Body * t = luax_checkbody(L, 1);
float jx = (float)luaL_checknumber(L, 2);
float jy = (float)luaL_checknumber(L, 3);
if(lua_gettop(L) == 3)
{
t->applyImpulse(jx, jy);
}
else if(lua_gettop(L) == 5)
{
float rx = (float)luaL_checknumber(L, 4);
float ry = (float)luaL_checknumber(L, 5);
t->applyImpulse(jx, jy, rx, ry);
}
else
{
return luaL_error(L, "Wrong number of parameters.");
}
return 0;
}
int w_Body_setMassFromShapes(lua_State * L)
{
Body * t = luax_checkbody(L, 1);
t->setMassFromShapes();
return 0;
}
int w_Body_resetMassData(lua_State *L)
{
Body *t = luax_checkbody(L, 1);
luax_catchexcept(L, [&](){ t->resetMassData(); });
return 0;
}
int w_Body_getWorldPoints(lua_State *L)
{
Body *t = luax_checkbody(L, 1);
lua_remove(L, 1);
return t->getWorldPoints(L);
}
int w_Body_getAngle(lua_State * L)
{
Body * t = luax_checkbody(L, 1);
lua_pushnumber(L, t->getAngle());
return 1;
}
int w_Body_wakeUp(lua_State * L)
{
Body * t = luax_checkbody(L, 1);
t->wakeUp();
return 0;
}
int w_Body_putToSleep(lua_State * L)
{
Body * t = luax_checkbody(L, 1);
t->putToSleep();
return 0;
}
int w_Body_getAllowSleeping(lua_State * L)
{
Body * t = luax_checkbody(L, 1);
lua_pushboolean(L, t->getAllowSleeping());
return 1;
}
int w_Body_isFrozen(lua_State * L)
{
Body * t = luax_checkbody(L, 1);
luax_pushboolean(L, t->isFrozen());
return 1;
}
int w_Body_isSleepingAllowed(lua_State *L)
{
Body *t = luax_checkbody(L, 1);
lua_pushboolean(L, t->isSleepingAllowed());
return 1;
}
int w_Body_destroy(lua_State *L)
{
Body *t = luax_checkbody(L, 1);
luax_catchexcept(L, [&](){ t->destroy(); });
return 0;
}
int w_Body_getUserData(lua_State *L)
{
Body *t = luax_checkbody(L, 1);
lua_remove(L, 1);
return t->getUserData(L);
}
int w_Body_resetMassData(lua_State * L)
{
Body * t = luax_checkbody(L, 1);
t->resetMassData();
return 0;
}
int w_Body_getLinearDamping(lua_State * L)
{
Body * t = luax_checkbody(L, 1);
lua_pushnumber(L, t->getLinearDamping());
return 1;
}
int w_Body_getAngularVelocity(lua_State * L)
{
Body * t = luax_checkbody(L, 1);
lua_pushnumber(L, t->getAngularVelocity());
return 1;
}
