GameObject.cpp

#include "GameObject.h"


GameObject::GameObject(ID3D11Device* d3dDevice, const wchar_t* textureFileName, char* meshFileName) {
	meshData = OBJLoader::Load(meshFileName, d3dDevice);
	CreateDDSTextureFromFile(d3dDevice, textureFileName, nullptr, &texture);
}

GameObject::~GameObject() {
	if (texture) texture->Release();

    meshData.VertexBuffer->Release();
    meshData.IndexBuffer->Release();
}

void GameObject::Draw(ID3D11DeviceContext* context, ID3D11VertexShader* vertexShader, ID3D11PixelShader* pixelShader, ID3D11Buffer* buffer, ID3D11SamplerState* sampler, ConstantBuffer cb) {    
    //set vertex buffer for model
    context->IASetVertexBuffers(0, 1, &meshData.VertexBuffer, &meshData.VBStride, &meshData.VBOffset);

    //set index buffer for model
    context->IASetIndexBuffer(meshData.IndexBuffer, DXGI_FORMAT_R16_UINT, 0);

    //set shaders
    context->VSSetShader(vertexShader, nullptr, 0);
    context->VSSetConstantBuffers(0, 1, &buffer);
    context->PSSetConstantBuffers(0, 1, &buffer);
    context->PSSetShader(pixelShader, nullptr, 0);
    context->PSSetShaderResources(0, 1, &texture);
    context->PSSetSamplers(0, 1, &sampler);

    //set world transpose
    XMFLOAT4X4 currentWorld;

    XMStoreFloat4x4(&currentWorld, XMMatrixScaling(transform.scale.x, transform.scale.y, transform.scale.z) 
        * XMMatrixRotationRollPitchYaw(transform.rotation.x, transform.rotation.y, transform.rotation.z) 
        * XMMatrixTranslation(transform.position.x, transform.position.y, transform.position.z));

    cb.mWorld = XMMatrixTranspose(XMLoadFloat4x4(&currentWorld));
    context->UpdateSubresource(buffer, 0, nullptr, &cb, 0, 0);

    context->DrawIndexed(meshData.IndexCount, 0, 0);
}