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