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#include "stdafx.h"
#include "FootstepParticle.h"
#include "Textures.h"
#include "Tesselator.h"
#include "..\Minecraft.World\Mth.h"
#include "..\Minecraft.World\net.minecraft.world.level.h"
#include "ResourceLocation.h"
ResourceLocation FootstepParticle::FOOTPRINT_LOCATION = ResourceLocation(TN_MISC_FOOTSTEP);
FootstepParticle::FootstepParticle(Textures *textures, Level *level, double x, double y, double z) : Particle(level, x, y, z, 0, 0, 0)
{
// 4J added initialisers
life = 0;
lifeTime = 0;
this->textures = textures;
xd = yd = zd = 0;
lifeTime = 200;
}
void FootstepParticle::render(Tesselator *t, float a, float xa, float ya, float za, float xa2, float za2)
{
float time = (life + a) / lifeTime;
time = time * time;
float alpha = 2 - time * 2;
if (alpha > 1) alpha = 1;
alpha = alpha * 0.2f;
glDisable(GL_LIGHTING);
float r = 2 / 16.0f;
float xx = static_cast<float>(x - xOff);
float yy = static_cast<float>(y - yOff);
float zz = static_cast<float>(z - zOff);
float br = level->getBrightness(Mth::floor(x), Mth::floor(y), Mth::floor(z));
textures->bindTexture(&FOOTPRINT_LOCATION);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
t->begin();
t->color(br, br, br, alpha);
t->vertexUV((float)(xx - r), (float)( yy), (float)( zz + r), static_cast<float>(0), static_cast<float>(1));
t->vertexUV((float)(xx + r), (float)( yy), (float)( zz + r), static_cast<float>(1), static_cast<float>(1));
t->vertexUV((float)(xx + r), (float)( yy), (float)( zz - r), static_cast<float>(1), static_cast<float>(0));
t->vertexUV((float)(xx - r), (float)( yy), (float)( zz - r), static_cast<float>(0), static_cast<float>(0));
t->end();
glDisable(GL_BLEND);
glEnable(GL_LIGHTING);
}
void FootstepParticle::tick()
{
life++;
if (life == lifeTime) remove();
}
int FootstepParticle::getParticleTexture()
{
return ParticleEngine::ENTITY_PARTICLE_TEXTURE;
}
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