cube-game-plus-plus/client/rendering/entity/EntityRenderer.cpp

#include "client/rendering/entity/EntityRenderer.h"
#include "client/engine/Utils.h"

EntityRenderer::EntityRenderer() : texture("resources/skin.png")
{
    // head
    mesh.addCuboid(0.0f, 0.0f, 0.0f, 0.5f, 0.5f, 0.5f, 
            0.125f, 0.0f, 0.25f, 0.125f,
            0.25f, 0.0f, 0.375f, 0.125f,
            0.25f, 0.125f, 0.375f, 0.25f,
            0.0f, 0.125f, 0.125f, 0.25f,
            0.125f, 0.125f, 0.25f, 0.25f,
            0.375f, 0.125f, 0.5f, 0.25f);
    // right arm
    mesh.addCuboid(0.0f, 0.0f, 0.0f, 0.25f, 0.75f, 0.25f, 
            0.6875f, 0.25f, 0.75f, 0.3125f,
            0.75f, 0.25f, 0.8125f, 0.3125f,
            0.75f, 0.3125f, 0.8125f, 0.5f,
            0.625f, 0.3125f, 0.6875f, 0.5f,
            0.6875f, 0.3125f, 0.75f, 0.5f,
            0.8125f, 0.3125f, 0.875f, 0.5f);
    // left arm
    mesh.addCuboid(0.0f, 0.0f, 0.0f, 0.25f, 0.75f, 0.25f, 
            0.5625f, 0.75f, 0.625f, 0.8125f,
            0.625f, 0.75f, 0.6875f, 0.8125f,
            0.625f, 0.8125f, 0.6875f, 1.0f,
            0.5f, 0.8125f, 0.5625f, 1.0f,
            0.5625f, 0.8125f, 0.625f, 1.0f,
            0.6875f, 0.8125f, 0.75f, 1.0f);
    // body
    mesh.addCuboid(0.0f, 0.0f, 0.0f, 0.5f, 0.75f, 0.25f, 
            0.3125f, 0.25f, 0.4375f, 0.3125f,
            0.4375f, 0.25f, 0.5625f, 0.3125f,
            0.4375f, 0.3125f, 0.5f, 0.5f,
            0.25f, 0.3125f, 0.3125f, 0.5f,
            0.3125f, 0.3125f, 0.4375f, 0.5f,
            0.5f, 0.3125f, 0.625f, 0.5f);
    // right leg
    mesh.addCuboid(0.0f, 0.0f, 0.0f, 0.25f, 0.75f, 0.25f, 
            0.0625f, 0.25f, 0.125f, 0.3125f,
            0.125f, 0.25f, 0.1875f, 0.3125f,
            0.125f, 0.3125f, 0.1875f, 0.5f,
            0.0f, 0.3125f, 0.0625f, 0.5f,
            0.0625f, 0.3125f, 0.125f, 0.5f,
            0.1875f, 0.3125f, 0.25f, 0.5f);
    // left leg
    mesh.addCuboid(0.0f, 0.0f, 0.0f, 0.25f, 0.75f, 0.25f, 
            0.3125f, 0.75f, 0.375f, 0.8125f,
            0.375f, 0.75f, 0.4375f, 0.8125f,
            0.375f, 0.8125f, 0.4375f, 1.0f,
            0.25f, 0.8125f, 0.3125f, 1.0f,
            0.3125f, 0.8125f, 0.375f, 1.0f,
            0.4375f, 0.8125f, 0.5f, 1.0f);
    mesh.build();
}

EntityRenderer::~EntityRenderer()
{
}

void EntityRenderer::tick()
{
    lifetime += 15;
}

void EntityRenderer::renderTick(Shader& shader, Camera3D camera, DirectRenderer& dr, float lag)
{
    const int d = 360;
    
    float f1 = lifetime % d;
    if(f1 >= d / 2)
    {
        f1 = d - f1;
    }
    
    float f2 = (lifetime + 15) % d;
    if(f2 >= d / 2)
    {
        f2 = d - f2;
    }
    
    float inter = interpolate(lag, f1, f2);
    
    texture.bind();
    
    shader.setToIdentity();
    shader.translateTo(5.0f + 0.5f, 42.0f, 15.0f + 0.25f);
    //shader.scale(3, 6, 3);
    shader.rotateY(90);
    shader.translate(-0.5f, 0.0f, -0.25f);
    
    shader.push();
    shader.translate(0.25f + 0.25f, 1.5f, 0.0f + 0.25f);
    shader.rotateY(inter * 0.25f - 22.5f);
    shader.translate(-0.25f, 0.0f, -0.25f);
    shader.updateModelMatrix(); 
    mesh.draw(0, 36);
    shader.pop();
    
    shader.push();
    shader.translate(0.0f, 1.375f, 0.25f);
    shader.rotateX(inter / 6 - 15);
    shader.translate(0.0f, -0.625f, -0.125f);
    shader.updateModelMatrix();  
    mesh.draw(36, 36);
    shader.pop();
    
    shader.push();
    shader.translate(0.75f, 1.375f, 0.25f);
    shader.rotateX(- inter / 6 + 15);
    shader.translate(0.0f, -0.625f, -0.125f);
    shader.updateModelMatrix(); 
    mesh.draw(72, 36);
    shader.pop();
    
    shader.push();
    shader.translate(0.25f, 0.75f, 0.125f);
    shader.updateModelMatrix(); 
    mesh.draw(108, 36);
    shader.pop();
    
    shader.push();
    shader.translate(0.25f, 0.0f, 0.125f);
    shader.updateModelMatrix(); 
    mesh.draw(144, 36);
    shader.pop();
    
    shader.push();
    shader.translate(0.5f, 0.0f, 0.125f);
    shader.updateModelMatrix(); 
    mesh.draw(180, 36);
    shader.pop();
}