53 lines
1.3 KiB
C++
53 lines
1.3 KiB
C++
#include "common.h"
|
|
#include "WindModifiers.h"
|
|
#include "Camera.h"
|
|
#include "General.h"
|
|
|
|
#define MAX_HEIGHT_DIST 40.0f
|
|
#define MIN_FADE_DIST 20.0f
|
|
#define MAX_FADE_DIST 50.0f
|
|
|
|
CWindModifiers Array[16];
|
|
int32 CWindModifiers::Number;
|
|
|
|
void
|
|
CWindModifiers::RegisterOne(CVector pos, int32 type = 1)
|
|
{
|
|
if (CWindModifiers::Number < 16 && (pos - TheCamera.GetPosition()).Magnitude() < 100.0f) {
|
|
Array[Number].m_pos = pos;
|
|
Array[Number].m_type = type;
|
|
Number++;
|
|
}
|
|
}
|
|
|
|
bool
|
|
CWindModifiers::FindWindModifier(CVector pos, float *x, float *y)
|
|
{
|
|
bool bWasWindModifierFound = false;
|
|
CVector2D dir;
|
|
for (int i = 0; i < Number; i++) {
|
|
if (Array[i].m_type == 1) {
|
|
float zDist = Abs(15.0f + pos.z - Array[i].m_pos.z);
|
|
|
|
if (zDist < MAX_HEIGHT_DIST) {
|
|
float dist = (pos - Array[i].m_pos).Magnitude();
|
|
if (dist < MAX_FADE_DIST) {
|
|
float distFade = dist < MIN_FADE_DIST ? 1.0f : 1.0f - (dist - MIN_FADE_DIST) / (MAX_FADE_DIST - MIN_FADE_DIST);
|
|
float heightFade = 1.0f - zDist / MAX_HEIGHT_DIST;
|
|
float fade = distFade * heightFade * 0.5f;
|
|
dir = (pos - Array[i].m_pos) * fade / dist;
|
|
bWasWindModifierFound = true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (bWasWindModifierFound) {
|
|
float directionMult = ((CGeneral::GetRandomNumber() & 0x1F) - 16) * 0.0035f + 1.0f;
|
|
*x += dir.x * directionMult;
|
|
*y += dir.y * directionMult;
|
|
}
|
|
|
|
return bWasWindModifierFound;
|
|
}
|