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/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#include "FireBallProjectile.h"
#include "Game/Camera.h"
#include "Map/Ground.h"
#include "Rendering/GL/VertexArray.h"
#include "Rendering/Textures/TextureAtlas.h"
#include "Rendering/ProjectileDrawer.h"
#include "Sim/Projectiles/ProjectileHandler.h"
#include "Sim/Weapons/WeaponDef.h"
#include "System/creg/STL_Deque.h"
CR_BIND_DERIVED(CFireBallProjectile, CWeaponProjectile, (ProjectileParams()))
CR_BIND(CFireBallProjectile::Spark, )
CR_REG_METADATA(CFireBallProjectile,(
CR_SETFLAG(CF_Synced),
CR_MEMBER(sparks),
CR_RESERVED(8)
))
CR_REG_METADATA_SUB(CFireBallProjectile,Spark,(
CR_MEMBER(pos),
CR_MEMBER(speed),
CR_MEMBER(size),
CR_MEMBER(ttl),
CR_RESERVED(8)
))
CFireBallProjectile::CFireBallProjectile(const ProjectileParams& params): CWeaponProjectile(params)
{
projectileType = WEAPON_FIREBALL_PROJECTILE;
if (weaponDef != NULL) {
SetRadiusAndHeight(weaponDef->collisionSize, 0.0f);
drawRadius = weaponDef->size;
}
}
void CFireBallProjectile::Draw()
{
inArray = true;
unsigned char col[4] = { 255, 150, 100, 1 };
float3 interPos = checkCol ? drawPos : pos;
float size = radius * 1.3f;
int numSparks = sparks.size();
int numFire = std::min(10, numSparks);
va->EnlargeArrays((numSparks + numFire) * 4, 0, VA_SIZE_TC);
for (int i = 0; i < numSparks; i++) {
//! CAUTION: loop count must match EnlargeArrays above
col[0] = (numSparks - i) * 12;
col[1] = (numSparks - i) * 6;
col[2] = (numSparks - i) * 4;
#define ept projectileDrawer->explotex
va->AddVertexQTC(sparks[i].pos - camera->right * sparks[i].size - camera->up * sparks[i].size, ept->xstart, ept->ystart, col);
va->AddVertexQTC(sparks[i].pos + camera->right * sparks[i].size - camera->up * sparks[i].size, ept->xend, ept->ystart, col);
va->AddVertexQTC(sparks[i].pos + camera->right * sparks[i].size + camera->up * sparks[i].size, ept->xend, ept->yend, col);
va->AddVertexQTC(sparks[i].pos - camera->right * sparks[i].size + camera->up * sparks[i].size, ept->xstart, ept->yend, col);
#undef ept
}
int maxCol = numFire;
if (checkCol) {
maxCol = 10;
}
for (int i = 0; i < numFire; i++) //! CAUTION: loop count must match EnlargeArrays above
{
col[0] = (maxCol - i) * 25;
col[1] = (maxCol - i) * 15;
col[2] = (maxCol - i) * 10;
#define dgt projectileDrawer->dguntex
va->AddVertexQTC(interPos - camera->right * size - camera->up * size, dgt->xstart, dgt->ystart, col);
va->AddVertexQTC(interPos + camera->right * size - camera->up * size, dgt->xend , dgt->ystart, col);
va->AddVertexQTC(interPos + camera->right * size + camera->up * size, dgt->xend , dgt->yend, col);
va->AddVertexQTC(interPos -camera->right * size + camera->up * size, dgt->xstart, dgt->yend, col);
#undef dgt
interPos = interPos - speed * 0.5f;
}
}
void CFireBallProjectile::Update()
{
if (checkCol) {
if (!luaMoveCtrl) {
pos += speed;
if (weaponDef->gravityAffected) {
speed.y += mygravity;
}
}
if (weaponDef->noExplode && TraveledRange()) {
checkCol = false;
}
EmitSpark();
} else {
if (sparks.empty()) {
deleteMe = true;
}
}
for (unsigned int i = 0; i < sparks.size(); i++) {
sparks[i].ttl--;
if (sparks[i].ttl == 0) {
sparks.pop_back();
break;
}
if (checkCol) {
sparks[i].pos += sparks[i].speed;
}
sparks[i].speed *= 0.95f;
}
explGenHandler->GenExplosion(cegID, pos, speed, ttl, !sparks.empty() ? sparks[0].size : 0.0f, 0.0f, NULL, NULL);
UpdateGroundBounce();
UpdateInterception();
}
void CFireBallProjectile::EmitSpark()
{
Spark spark;
const float x = (rand() / (float) RAND_MAX) - 0.5f;
const float y = (rand() / (float) RAND_MAX) - 0.5f;
const float z = (rand() / (float) RAND_MAX) - 0.5f;
spark.speed = (speed * 0.95f) + float3(x, y, z);
spark.pos = pos - speed * (rand() / (float) RAND_MAX + 3) + spark.speed * 3;
spark.size = 5.0f;
spark.ttl = 15;
sparks.push_front(spark);
}
void CFireBallProjectile::Collision()
{
CWeaponProjectile::Collision();
deleteMe = false;
}
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