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proper radar clipping

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This commit is contained in:
aap 2021-02-28 14:55:14 +01:00
parent d2b5a422e4
commit 82245789ed
1 changed files with 113 additions and 68 deletions
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181
src/core/Radar.cpp
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@ -184,6 +184,75 @@ void GetTextureCorners(int32 x, int32 y, CVector2D *out)
out[3].y = RADAR_TILE_SIZE * (y); out[3].y = RADAR_TILE_SIZE * (y);
} }
uint8 CRadar::CalculateBlipAlpha(float dist)
{
if (FrontEndMenuManager.m_bMenuMapActive)
return 255;
if (dist <= 1.0f)
return 255;
if (dist <= 10.0f)
return (128.0f * ((dist - 1.0f) / 9.0f)) + ((1.0f - (dist - 1.0f) / 9.0f) * 255.0f);
return 128;
}
void CRadar::ChangeBlipBrightness(int32 i, int32 bright)
{
int index = GetActualBlipArrayIndex(i);
if (index != -1)
ms_RadarTrace[index].m_bDim = bright != 1;
}
void CRadar::ChangeBlipColour(int32 i, int32 color)
{
int index = GetActualBlipArrayIndex(i);
if (index != -1)
ms_RadarTrace[index].m_nColor = color;
}
void CRadar::ChangeBlipDisplay(int32 i, eBlipDisplay display)
{
int index = GetActualBlipArrayIndex(i);
if (index != -1)
ms_RadarTrace[index].m_eBlipDisplay = display;
}
void CRadar::ChangeBlipScale(int32 i, int32 scale)
{
int index = GetActualBlipArrayIndex(i);
if (index != -1)
ms_RadarTrace[index].m_wScale = scale;
}
void CRadar::ClearBlip(int32 i)
{
int index = GetActualBlipArrayIndex(i);
if (index != -1) {
SetRadarMarkerState(index, false);
ms_RadarTrace[index].m_bInUse = false;
ms_RadarTrace[index].m_eBlipType = BLIP_NONE;
ms_RadarTrace[index].m_eBlipDisplay = BLIP_DISPLAY_NEITHER;
ms_RadarTrace[index].m_eRadarSprite = RADAR_SPRITE_NONE;
}
}
void CRadar::ClearBlipForEntity(eBlipType type, int32 id)
{
for (int i = 0; i < NUMRADARBLIPS; i++) {
if (type == ms_RadarTrace[i].m_eBlipType && id == ms_RadarTrace[i].m_nEntityHandle) {
SetRadarMarkerState(i, false);
ms_RadarTrace[i].m_bInUse = false;
ms_RadarTrace[i].m_eBlipType = BLIP_NONE;
ms_RadarTrace[i].m_eBlipDisplay = BLIP_DISPLAY_NEITHER;
ms_RadarTrace[i].m_eRadarSprite = RADAR_SPRITE_NONE;
}
};
}
// Why not a proper clipping algorithm?
#ifdef THIS_IS_STUPID
bool IsPointInsideRadar(const CVector2D &point) bool IsPointInsideRadar(const CVector2D &point)
{ {
@ -264,74 +333,6 @@ int LineRadarBoxCollision(CVector2D &out, const CVector2D &p1, const CVector2D &
return edge; return edge;
} }
uint8 CRadar::CalculateBlipAlpha(float dist)
{
if (FrontEndMenuManager.m_bMenuMapActive)
return 255;
if (dist <= 1.0f)
return 255;
if (dist <= 10.0f)
return (128.0f * ((dist - 1.0f) / 9.0f)) + ((1.0f - (dist - 1.0f) / 9.0f) * 255.0f);
return 128;
}
void CRadar::ChangeBlipBrightness(int32 i, int32 bright)
{
int index = GetActualBlipArrayIndex(i);
if (index != -1)
ms_RadarTrace[index].m_bDim = bright != 1;
}
void CRadar::ChangeBlipColour(int32 i, int32 color)
{
int index = GetActualBlipArrayIndex(i);
if (index != -1)
ms_RadarTrace[index].m_nColor = color;
}
void CRadar::ChangeBlipDisplay(int32 i, eBlipDisplay display)
{
int index = GetActualBlipArrayIndex(i);
if (index != -1)
ms_RadarTrace[index].m_eBlipDisplay = display;
}
void CRadar::ChangeBlipScale(int32 i, int32 scale)
{
int index = GetActualBlipArrayIndex(i);
if (index != -1)
ms_RadarTrace[index].m_wScale = scale;
}
void CRadar::ClearBlip(int32 i)
{
int index = GetActualBlipArrayIndex(i);
if (index != -1) {
SetRadarMarkerState(index, false);
ms_RadarTrace[index].m_bInUse = false;
ms_RadarTrace[index].m_eBlipType = BLIP_NONE;
ms_RadarTrace[index].m_eBlipDisplay = BLIP_DISPLAY_NEITHER;
ms_RadarTrace[index].m_eRadarSprite = RADAR_SPRITE_NONE;
}
}
void CRadar::ClearBlipForEntity(eBlipType type, int32 id)
{
for (int i = 0; i < NUMRADARBLIPS; i++) {
if (type == ms_RadarTrace[i].m_eBlipType && id == ms_RadarTrace[i].m_nEntityHandle) {
SetRadarMarkerState(i, false);
ms_RadarTrace[i].m_bInUse = false;
ms_RadarTrace[i].m_eBlipType = BLIP_NONE;
ms_RadarTrace[i].m_eBlipDisplay = BLIP_DISPLAY_NEITHER;
ms_RadarTrace[i].m_eRadarSprite = RADAR_SPRITE_NONE;
}
};
}
// Why not a proper clipping algorithm?
int CRadar::ClipRadarPoly(CVector2D *poly, const CVector2D *rect) int CRadar::ClipRadarPoly(CVector2D *poly, const CVector2D *rect)
{ {
CVector2D corners[4] = { CVector2D corners[4] = {
@ -410,6 +411,50 @@ int CRadar::ClipRadarPoly(CVector2D *poly, const CVector2D *rect)
return n; return n;
} }
#else
int
ClipPolyPlane(const CVector2D *in, int nin, CVector2D *out, CVector *plane)
{
int j;
int nout;
int x1, x2;
float d1, d2, t;
nout = 0;
for(j = 0; j < nin; j++){
x1 = j;
x2 = (j+1) % nin;
d1 = plane->x*in[x1].x + plane->y*in[x1].y + plane->z;
d2 = plane->x*in[x2].x + plane->y*in[x2].y + plane->z;
if(d1*d2 < 0.0f){
t = d1/(d1 - d2);
out[nout++] = in[x1]*(1.0f-t) + in[x2]*t;
}
if(d2 >= 0.0f)
out[nout++] = in[x2];
}
return nout;
}
int CRadar::ClipRadarPoly(CVector2D *poly, const CVector2D *rect)
{
CVector planes[4] = {
CVector(-1.0f, 0.0f, 1.0f),
CVector( 1.0f, 0.0f, 1.0f),
CVector(0.0f, -1.0f, 1.0f),
CVector(0.0f, 1.0f, 1.0f)
};
CVector2D tmp[8];
int n;
if(n = ClipPolyPlane(rect, 4, tmp, &planes[0]), n == 0) return 0;
if(n = ClipPolyPlane(tmp, n, poly, &planes[1]), n == 0) return 0;
if(n = ClipPolyPlane(poly, n, tmp, &planes[2]), n == 0) return 0;
if(n = ClipPolyPlane(tmp, n, poly, &planes[3]), n == 0) return 0;
return n;
}
#endif
bool CRadar::DisplayThisBlip(int32 counter) bool CRadar::DisplayThisBlip(int32 counter)
{ {