223 lines
7.7 KiB
C++
223 lines
7.7 KiB
C++
#include "RenderSystem.h"
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#include "Environment.h"
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#include "Utils.h"
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#include "Inventory.h"
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#include <GL/gl.h>
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namespace ZL {
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void RenderSystem::initialize() {
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renderer.shaderManager.AddShaderFromFiles("default", "./default.vertex", "./default.fragment");
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renderer.shaderManager.AddShaderFromFiles("defaultColor", "./defaultColor.vertex", "./defaultColor.fragment");
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renderer.InitOpenGL();
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}
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void RenderSystem::drawScene(GameObjectManager& gameObjects) {
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static const std::string defaultShaderName = "default";
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static const std::string vPositionName = "vPosition";
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static const std::string vTexCoordName = "vTexCoord";
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static const std::string textureUniformName = "Texture";
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glClearColor(0.0f, 0.5f, 1.0f, 1.0f);
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glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);
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glViewport(0, 0, Environment::width, Environment::height);
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/*
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renderer.shaderManager.PushShader(defaultShaderName);
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renderer.RenderUniform1i(textureUniformName, 0);
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renderer.EnableVertexAttribArray(vPositionName);
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renderer.EnableVertexAttribArray(vTexCoordName);
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*/
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drawWorld(gameObjects);
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//drawUI(gameObjects);
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/*renderer.DisableVertexAttribArray(vPositionName);
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renderer.DisableVertexAttribArray(vTexCoordName);
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renderer.shaderManager.PopShader();*/
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CheckGlError();
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}
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void RenderSystem::drawViola(GameObjectManager& gameObjects)
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{
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static const std::string defaultShaderName = "default";
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static const std::string colorShaderName = "defaultColor";
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static const std::string vPositionName = "vPosition";
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static const std::string vTexCoordName = "vTexCoord";
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static const std::string vColorName = "vColor";
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static const std::string textureUniformName = "Texture";
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renderer.shaderManager.PushShader(colorShaderName);
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renderer.EnableVertexAttribArray(vPositionName);
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renderer.PushPerspectiveProjectionMatrix(1.0 / 1.5,
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static_cast<float>(Environment::width) / static_cast<float>(Environment::height),
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50, 10000);
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renderer.PushMatrix();
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renderer.LoadIdentity();
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renderer.TranslateMatrix({ 0,0, -100 * Environment::zoom });
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float t = 0.3;
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renderer.RotateMatrix(QuatFromRotateAroundX(t * M_PI / 2.0));
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renderer.ScaleMatrix(10);
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renderer.RotateMatrix(QuatFromRotateAroundX(-M_PI / 2.0));
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if (Environment::violaCurrentAnimation == 0)
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{
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gameObjects.violaIdleModelMutable.AssignFrom(gameObjects.violaIdleModel.mesh);
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gameObjects.violaIdleModelMutable.RefreshVBO();
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renderer.DrawVertexRenderStruct(gameObjects.violaIdleModelMutable);
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}
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else
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{
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gameObjects.violaWalkModelMutable.AssignFrom(gameObjects.violaWalkModel.mesh);
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gameObjects.violaWalkModelMutable.RefreshVBO();
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renderer.DrawVertexRenderStruct(gameObjects.violaWalkModelMutable);
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}
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renderer.PopMatrix();
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renderer.PopProjectionMatrix();
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renderer.DisableVertexAttribArray(vPositionName);
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renderer.shaderManager.PopShader();
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}
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void RenderSystem::drawWorld(GameObjectManager& gameObjects) {
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static const std::string defaultShaderName = "default";
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static const std::string colorShaderName = "defaultColor";
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static const std::string vPositionName = "vPosition";
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static const std::string vTexCoordName = "vTexCoord";
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static const std::string vColorName = "vColor";
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static const std::string textureUniformName = "Texture";
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/*
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renderer.shaderManager.PushShader(defaultShaderName);
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renderer.RenderUniform1i(textureUniformName, 0);
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renderer.EnableVertexAttribArray(vPositionName);
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renderer.EnableVertexAttribArray(vTexCoordName);
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*/
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// Draw cone
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//glBindTexture(GL_TEXTURE_2D, gameObjects.coneTexturePtr->getTexID());
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//renderer.DrawVertexRenderStruct(gameObjects.coneMeshMutable);
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drawViola(gameObjects);
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renderer.shaderManager.PushShader(defaultShaderName);
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renderer.RenderUniform1i(textureUniformName, 0);
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renderer.EnableVertexAttribArray(vPositionName);
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renderer.EnableVertexAttribArray(vTexCoordName);
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renderer.PushPerspectiveProjectionMatrix(1.0 / 1.5,
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static_cast<float>(Environment::width) / static_cast<float>(Environment::height),
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50, 10000);
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renderer.PushMatrix();
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renderer.LoadIdentity();
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renderer.TranslateMatrix({ 0,0, -100 * Environment::zoom });
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float t = 0.3;
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renderer.RotateMatrix(QuatFromRotateAroundX(t * M_PI / 2.0));
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renderer.TranslateMatrix(Environment::cameraShift);
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// Draw active objects
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for (const auto& ao : gameObjects.activeObjects) {
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renderer.PushMatrix();
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renderer.TranslateMatrix(ao.objectPos);
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glBindTexture(GL_TEXTURE_2D, ao.activeObjectTexturePtr->getTexID());
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renderer.DrawVertexRenderStruct(ao.activeObjectMeshMutable);
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renderer.PopMatrix();
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}
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// Draw room
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glBindTexture(GL_TEXTURE_2D, gameObjects.roomTexturePtr->getTexID());
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renderer.DrawVertexRenderStruct(gameObjects.textMeshMutable);
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Matrix4f latestProjectionModelView = renderer.GetProjectionModelViewMatrix();
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// Проверяем пересечение с мышью после расчета всех матриц
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const_cast<GameObjectManager&>(gameObjects).checkMouseIntersection(
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lastMouseX, lastMouseY, latestProjectionModelView);
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renderer.PopMatrix();
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renderer.PopProjectionMatrix();
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renderer.DisableVertexAttribArray(vPositionName);
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renderer.DisableVertexAttribArray(vTexCoordName);
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renderer.shaderManager.PopShader();
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// Store matrix for UI rendering
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currentProjectionModelView = latestProjectionModelView;
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}
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void RenderSystem::drawUI(const GameObjectManager& gameObjects) {
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renderer.PushProjectionMatrix(static_cast<float>(Environment::width),
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static_cast<float>(Environment::height));
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renderer.PushMatrix();
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renderer.LoadIdentity();
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// Draw highlighted objects UI
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for (const auto& ao : gameObjects.activeObjects) {
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if (ao.highlighted) {
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if (ao.activeObjectScreenTexturePtr){
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int screenX, screenY;
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worldToScreenCoordinates(ao.objectPos, currentProjectionModelView,
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Environment::width, Environment::height, screenX, screenY);
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renderer.PushMatrix();
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renderer.TranslateMatrix(Vector3f{screenX + 0.f, screenY + 0.f, 0.0f});
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glBindTexture(GL_TEXTURE_2D, ao.activeObjectScreenTexturePtr->getTexID());
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renderer.DrawVertexRenderStruct(ao.activeObjectScreenMeshMutable);
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renderer.PopMatrix();
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} else {}
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}
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}
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// Draw inventory
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const auto& inventory = ZL::ReturnInventory();
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for (size_t i = 0; i < inventory.size(); ++i) {
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renderer.PushMatrix();
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float xPos = Environment::width - gameObjects.INVENTORY_MARGIN - gameObjects.INVENTORY_ICON_SIZE;
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float yPos = gameObjects.INVENTORY_MARGIN + i * (gameObjects.INVENTORY_ICON_SIZE + gameObjects.INVENTORY_MARGIN);
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renderer.TranslateMatrix(Vector3f{xPos, yPos, 0.0f});
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glBindTexture(GL_TEXTURE_2D, inventory[i].texture->getTexID());
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renderer.DrawVertexRenderStruct(gameObjects.inventoryIconMeshMutable);
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renderer.PopMatrix();
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}
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renderer.PopMatrix();
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renderer.PopProjectionMatrix();
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}
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void RenderSystem::worldToScreenCoordinates(Vector3f objectPos,
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Matrix4f projectionModelView,
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int screenWidth, int screenHeight,
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int& screenX, int& screenY) {
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Vector4f inx = { objectPos.v[0], objectPos.v[1], objectPos.v[2], 1.0f};
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Vector4f clipCoords = MultMatrixVector(projectionModelView, inx);
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float ndcX = clipCoords.v[0] / clipCoords.v[3];
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float ndcY = clipCoords.v[1] / clipCoords.v[3];
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screenX = (int)((ndcX + 1.0f) * 0.5f * screenWidth);
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screenY = (int)((1.0f + ndcY) * 0.5f * screenHeight);
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}
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} // namespace ZL
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