* Initial commit.

:)

source/World/Particle/Particle.cpp

@@ -0,0 +1,95 @@
+#include "Particle.hpp"
+
+float Particle::xOff, Particle::yOff, Particle::zOff;
+
+Particle::Particle(Level* level, float x, float y, float z, float vx, float vy, float vz) : Entity(level)
+{
+	setSize(0.2f, 0.2f);
+	field_84 = 0.5f * field_8C;
+	
+	setPos(x, y, z);
+	m_vel.x = vx + 0.4f * (2.0f * Mth::random() - 1.0f);
+	m_vel.y = vy + 0.4f * (2.0f * Mth::random() - 1.0f);
+	m_vel.z = vz + 0.4f * (2.0f * Mth::random() - 1.0f);
+
+	float mult = 0.4f * 0.15f * (Mth::random() + Mth::random() + 1.0f) / Mth::sqrt(m_vel.x * m_vel.x + m_vel.y * m_vel.y + m_vel.z * m_vel.z);
+	m_vel.x *= mult;
+	m_vel.y = m_vel.y * mult + 0.1f;
+	m_vel.z *= mult;
+
+	field_E0 = 3.0f * sharedRandom.nextFloat();
+	field_E4 = 3.0f * sharedRandom.nextFloat();
+	field_F0 = 2.0f * (0.5f + 0.5f * sharedRandom.nextFloat());
+	field_EC = int(4.0f / (0.1f + 0.9f * sharedRandom.nextFloat()));
+}
+
+int Particle::getParticleTexture()
+{
+	return PT_PARTICLES;
+}
+
+Particle* Particle::scale(float f)
+{
+	setSize(0.2f * f, 0.2f * f);
+	field_F0 *= f;
+	return this;
+}
+
+Particle* Particle::setPower(float f)
+{
+	m_vel.x *= f;
+	m_vel.y = (m_vel.y - 0.1f) * f + 0.1f;
+	m_vel.z *= f;
+	return this;
+}
+
+void Particle::render(Tesselator& t, float f, float a4, float a5, float a6, float a7, float a8)
+{
+	constexpr float C_MAGIC_1 = 0.062438f; // @BUG: Slightly bigger than 1/16.0f
+
+	int texture = field_DC;
+	int texX = texture % 16;
+	if (texture < 0)
+		texture += 15;
+
+	float texU_1 = float(texX) / 16.0f;
+	float texV_1 = float(texture >> 4) / 16.0f;
+
+	float posX = Lerp(field_3C.x, m_pos.x, f) - xOff;
+	float posY = Lerp(field_3C.y, m_pos.y, f) - yOff;
+	float posZ = Lerp(field_3C.z, m_pos.z, f) - zOff;
+	float fBright = getBrightness(f);
+
+	float sizeX = a4 * field_F0 * 0.1f;
+	float sizeY = a5 * field_F0 * 0.1f;
+	float sizeZ = a6 * field_F0 * 0.1f;
+	float siz2X = a7 * field_F0 * 0.1f;
+	float siz2Z = a8 * field_F0 * 0.1f;
+
+	t.color(field_F8 * fBright, field_FC * fBright, field_100 * fBright);
+	t.vertexUV(posX - sizeX - siz2X, posY - sizeY, posZ - sizeZ - siz2Z, texU_1 + C_MAGIC_1, texV_1 + C_MAGIC_1);
+	t.vertexUV(posX - sizeX + siz2X, posY + sizeY, posZ - sizeZ + siz2Z, texU_1 + C_MAGIC_1, texV_1);
+	t.vertexUV(posX + sizeX + siz2X, posY + sizeY, posZ + sizeZ + siz2Z, texU_1,             texV_1);
+	t.vertexUV(posX + sizeX - siz2X, posY - sizeY, posZ + sizeZ - siz2Z, texU_1,             texV_1 + C_MAGIC_1);
+}
+
+void Particle::tick()
+{
+	field_3C = m_pos;
+	field_E8++;
+	if (field_E8 >= field_EC)
+		remove();
+	
+	m_vel.y -= field_F4 * 0.04f;
+	move(m_vel.x, m_vel.y, m_vel.z);
+
+	m_vel.x *= 0.98f;
+	m_vel.y *= 0.98f;
+	m_vel.z *= 0.98f;
+
+	if (field_7C)
+	{
+		m_vel.x *= 0.7f;
+		m_vel.z *= 0.7f;
+	}
+}