//
// XInputGamePad::normAxisPair
//
// Normalize a bonded pair of analog axes.
//
void XInputGamePad::normAxisPair(float &axisx, float &axisy, int threshold,
int min, int max)
{
float deadzone = (float)threshold / max;
v2float_t vec = { axisx, axisy };
// put components into the range of -1.0 to 1.0
vec.x = (vec.x - min) * 2.0f / (max - min) - 1.0f;
vec.y = (vec.y - min) * 2.0f / (max - min) - 1.0f;
float magnitude = M_MagnitudeVec2(vec);
if(magnitude < deadzone)
{
axisx = 0.0f;
axisy = 0.0f;
}
else
{
M_NormalizeVec2(vec, magnitude);
// rescale to smooth edge of deadzone
axisx = vec.x * ((magnitude - deadzone) / (1 - deadzone));
axisy = vec.y * ((magnitude - deadzone) / (1 - deadzone));
}
}
void Scene_SetWindVector(float x, float y)
{
SET_VEC2(wind_vec, x, y);
for(int i=0;i<4;i++) {
SET_VEC2(wind_waves[i].dir, M_Randnum(0.1, 6.0), M_Randnum(-6.0, 6.0));
M_NormalizeVec2(wind_waves[i].dir);
//SET_VEC2(wind_waves[i].dir, wind_waves[i].dir[1], -wind_waves[i].dir[0]);
}
}
void NavRep_RenderLine(vec2_t src, vec2_t dest, float height)
{
#ifndef _S2_DONT_INCLUDE_GL
pointinfo_t pi;
vec2_t dir;
float x, y, mag, t;
M_SubVec2(dest, src, dir);
mag = M_NormalizeVec2(dir);
for ( t = 0 ; t < navrep_rendertess.value ; ++t )
{
x = src[0] + dir[0]*mag*t/(float)navrep_rendertess.value;
y = src[1] + dir[1]*mag*t/(float)navrep_rendertess.value;
World_SampleGround(x, y, &pi);
glVertex3f(x, y, pi.z+height);
x = src[0] + dir[0]*mag*(t+1)/(float)navrep_rendertess.value;
y = src[1] + dir[1]*mag*(t+1)/(float)navrep_rendertess.value;
World_SampleGround(x, y, &pi);
glVertex3f(x, y, pi.z+height);
}
#endif
}