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#include "StdAfx.h"
#include "mmgr.h"
#include "BitmapMuzzleFlame.h"
#include "Sim/Misc/GlobalSynced.h"
#include "Rendering/GL/VertexArray.h"
#include "Rendering/Textures/ColorMap.h"
#include "Rendering/Textures/TextureAtlas.h"
#include "Sim/Projectiles/ProjectileHandler.h"
#include "GlobalUnsynced.h"
CR_BIND_DERIVED(CBitmapMuzzleFlame, CProjectile, );
CR_REG_METADATA(CBitmapMuzzleFlame,
(
CR_MEMBER_BEGINFLAG(CM_Config),
CR_MEMBER(sideTexture),
CR_MEMBER(frontTexture),
CR_MEMBER(dir),
CR_MEMBER(colorMap),
CR_MEMBER(size),
CR_MEMBER(length),
CR_MEMBER(sizeGrowth),
CR_MEMBER(ttl),
CR_MEMBER(frontOffset),
CR_MEMBER_ENDFLAG(CM_Config),
CR_RESERVED(8)
));
CBitmapMuzzleFlame::CBitmapMuzzleFlame(void) :
CProjectile()
{
deleteMe = false;
checkCol = false;
useAirLos = true;
}
CBitmapMuzzleFlame::~CBitmapMuzzleFlame(void)
{
}
void CBitmapMuzzleFlame::Draw(void)
{
inArray = true;
life = (gs->frameNum - createTime + gu->timeOffset) * invttl;
unsigned char col[4];
colorMap->GetColor(col, life);
float invlife = 1 - life;
float igrowth = sizeGrowth * (1 - invlife * invlife);
float isize = size + size * igrowth;
float ilength = length + length * igrowth;
float3 sidedir = dir.cross(float3(0, 1, 0)).SafeANormalize();
float3 updir = dir.cross(sidedir).SafeANormalize();
va->AddVertexTC(pos + updir * isize, sideTexture->xstart, sideTexture->ystart, col);
va->AddVertexTC(pos + updir * isize + dir * ilength, sideTexture->xend, sideTexture->ystart, col);
va->AddVertexTC(pos - updir * isize + dir * ilength, sideTexture->xend, sideTexture->yend, col);
va->AddVertexTC(pos - updir * isize, sideTexture->xstart, sideTexture->yend, col);
va->AddVertexTC(pos + sidedir * isize, sideTexture->xstart, sideTexture->ystart, col);
va->AddVertexTC(pos + sidedir * isize + dir * ilength, sideTexture->xend, sideTexture->ystart, col);
va->AddVertexTC(pos - sidedir * isize + dir * ilength, sideTexture->xend, sideTexture->yend, col);
va->AddVertexTC(pos - sidedir * isize, sideTexture->xstart, sideTexture->yend, col);
float3 frontpos = pos + dir * frontOffset * ilength;
va->AddVertexTC(frontpos - sidedir * isize + updir * isize, frontTexture->xstart, frontTexture->ystart, col);
va->AddVertexTC(frontpos + sidedir * isize + updir * isize, frontTexture->xend, frontTexture->ystart, col);
va->AddVertexTC(frontpos + sidedir * isize - updir * isize, frontTexture->xend, frontTexture->yend, col);
va->AddVertexTC(frontpos - sidedir * isize - updir * isize, frontTexture->xstart, frontTexture->yend, col);
}
void CBitmapMuzzleFlame::Update(void)
{
ttl--;
if(!ttl)
deleteMe = true;
}
void CBitmapMuzzleFlame::Init(const float3 &pos, CUnit *owner GML_PARG_C)
{
CProjectile::Init(pos, owner GML_PARG_P);
life = 0;
createTime = gs->frameNum;
invttl = 1.0f/(float)ttl;
}
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