\n#pragma once\n#include <vector>\n#include "GameSubj.h"\n#include "Camera.h"\n\nclass TheGame\n{\npublic:\n\tint screenSize[2];\n\tfloat screenAspectRatio = 1;\n\tbool bExitGame;\n\tCamera mainCamera;\n\tfloat dirToMainLight[4] = { 1,1,1,0 };\n\n\t\/\/static arrays (vectors) of active GameSubjs\n\tstatic std::vector<GameSubj*> gameSubjs;\npublic:\n\tint run();\n\tint getReady();\n\tint drawFrame();\n\tint cleanUp();\n\tint onScreenResize(int width, int height);\n};\n\n<\/pre><\/div>\n\n\n
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\u0412 \u0444\u0443\u043d\u043a\u0446\u0438\u044f\u0445TheGame::getReady(), TheGame::drawFrame()<\/em> \u0438 \u0432 TheGame::onScreenResize()<\/em> \u0443 \u043d\u0430\u0441 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u0435 \u0441 \u043f\u043e\u0437\u0438\u0446\u0438\u043e\u043d\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u043a\u0430\u043c\u0435\u0440\u044b. \u0421\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u0435 \u0441 \u044d\u0442\u0438\u043c \u0432\u044b\u0447\u0438\u0441\u043b\u0435\u043d\u0438\u044f \u043b\u0443\u0447\u0448\u0435 \u043f\u0435\u0440\u0435\u043d\u0435\u0441\u0435\u043c \u0438\u0437 TheGame <\/em>\u0432 \u043a\u043b\u0430\u0441\u0441 Camera<\/em>.<\/p>\n\n\n\n
2. \u0417\u0430\u043c\u0435\u043d\u0438\u043c TheGame.cpp<\/em> \u043a\u043e\u0434 \u043d\u0430:<\/p>\n\n\n
\n#include "TheGame.h"\n#include "platform.h"\n#include "utils.h"\n#include "linmath.h"\n#include "Texture.h"\n#include "Shader.h"\n#include "DrawJob.h"\n#include "ModelBuilder.h"\n#include "TexCoords.h"\n\nextern std::string filesRoot;\nextern float degrees2radians;\n\nstd::vector<GameSubj*> TheGame::gameSubjs;\n\nint TheGame::getReady() {\n    bExitGame = false;\n    Shader::loadShaders();\n    glEnable(GL_CULL_FACE);\n\n    \/\/=== create box ========================\n    GameSubj* pGS = new GameSubj();\n    gameSubjs.push_back(pGS);\n\n    pGS->name.assign("box1");\n    pGS->ownCoords.setPosition(0, 0, 0);\n    pGS->ownCoords.setDegrees(0, 0, 0);\n    pGS->ownSpeed.setDegrees(0,1,0);\n\n    ModelBuilder* pMB = new ModelBuilder();\n    pMB->useSubjN(gameSubjs.size() - 1);\n\n    \/\/define VirtualShape\n    VirtualShape vs;\n    vs.setShapeType("box-tank");\n    vs.whl[0] = 60;\n    vs.whl[1] = 160;\n    vs.whl[2] = 390;\n    vs.setExt(20);\n    vs.extD = 0;\n    vs.extF = 0; \/\/to make front face "flat"\n    vs.sectionsR = 2;\n\n    Material mt;\n    \/\/define material - flat red\n    mt.shaderN = Shader::spN_phong_ucolor;\n    mt.primitiveType = GL_TRIANGLES;\n    mt.uColor.setRGBA(255, 0, 0,255); \/\/red\n    pMB->useMaterial(&mt);\n\n    pMB->buildBoxFace(pMB,"front v", &vs);\n    pMB->buildBoxFace(pMB, "back v", &vs);\n    pMB->buildBoxFace(pMB, "top", &vs);\n    pMB->buildBoxFace(pMB, "bottom", &vs);\n    pMB->buildBoxFace(pMB, "left all", &vs);\n\n    mt.uColor.clear(); \/\/ set to zero;\n    mt.uTex0 = Texture::loadTexture(filesRoot + "\/dt\/sample_img.png");\n    mt.shaderN = Shader::spN_flat_tex;\n    pMB->useMaterial(&mt);\n    TexCoords tc;\n    tc.set(mt.uTex0, 11, 12, 256, 128, "180");\n    pMB->buildBoxFace(pMB, "right all", &vs, &tc);\n\n    pMB->buildDrawJobs(gameSubjs);\n\n    delete pMB;\n\n    \/\/===== set up camera\n    mainCamera.ownCoords.setDegrees(15, 180, 0); \/\/set camera angles\/orientation\n    mainCamera.viewRangeDg = 30;\n    mainCamera.stageSize[0] = 500;\n    mainCamera.stageSize[1] = 375;\n    memcpy(mainCamera.lookAtPoint, pGS->ownCoords.pos, sizeof(float) * 3);\n    mainCamera.onScreenResize();\n\n    \/\/===== set up light\n    v3set(dirToMainLight, -1, 1, 1);\n    vec3_norm(dirToMainLight, dirToMainLight);\n\n    return 1;\n}\nint TheGame::drawFrame() {\n    myPollEvents();\n\n    \/\/glClearColor(0.0, 0.0, 0.5, 1.0);\n    glClear(GL_COLOR_BUFFER_BIT);\n\n    \/\/calculate halfVector\n    float dirToCamera[4] = { 0,0,-1,0 }; \/\/-z\n    mat4x4_mul_vec4plus(dirToCamera, *mainCamera.ownCoords.getRotationMatrix(), dirToCamera, 0);\n\n    float uHalfVector[4] = { 0,0,0,0 };\n    for (int i = 0; i < 3; i++)\n        uHalfVector[i] = (dirToCamera[i] + dirToMainLight[i]) \/ 2;\n    vec3_norm(uHalfVector, uHalfVector);\n\n    mat4x4 mProjection, mViewProjection, mMVP, mMV4x4;\n    \/\/mat4x4_ortho(mProjection, -(float)screenSize[0] \/ 2, (float)screenSize[0] \/ 2, -(float)screenSize[1] \/ 2, (float)screenSize[1] \/ 2, 100.f, 500.f);\n    float nearClip = mainCamera.focusDistance - 250;\n    float farClip = mainCamera.focusDistance + 250;\n    mat4x4_perspective(mProjection, mainCamera.viewRangeDg * degrees2radians, screenAspectRatio, nearClip, farClip);\n    mat4x4_mul(mViewProjection, mProjection, mainCamera.lookAtMatrix);\n    \/\/mViewProjection[1][3] = 0; \/\/keystone effect\n\n    \/\/scan subjects\n    int subjsN = gameSubjs.size();\n    for (int subjN = 0; subjN < subjsN; subjN++) {\n        GameSubj* pGS = gameSubjs.at(subjN);\n        \/\/behavior - apply rotation speed\n        pGS->moveSubj();\n        \/\/prepare subject for rendering\n        pGS->buildModelMatrix(pGS);\n        \/\/build MVP matrix for given subject\n        mat4x4_mul(mMVP, mViewProjection, pGS->ownModelMatrix);\n        \/\/build Model-View (rotation) matrix for normals\n        mat4x4_mul(mMV4x4, mainCamera.lookAtMatrix, (vec4*)pGS->ownCoords.getRotationMatrix());\n        \/\/convert to 3x3 matrix\n        float mMV3x3[3][3];\n        for (int y = 0; y < 3; y++)\n            for (int x = 0; x < 3; x++)\n                mMV3x3[y][x] = mMV4x4[y][x];\n        \/\/render subject\n        for (int i = 0; i < pGS->djTotalN; i++) {\n            DrawJob* pDJ = DrawJob::drawJobs.at(pGS->djStartN + i);\n            pDJ->execute((float*)mMVP, *mMV3x3, dirToMainLight, uHalfVector, NULL);\n        }\n    }\n    mySwapBuffers();\n    return 1;\n}\n\nint TheGame::cleanUp() {\n    int itemsN = gameSubjs.size();\n    \/\/delete all UISubjs\n    for (int i = 0; i < itemsN; i++) {\n        GameSubj* pGS = gameSubjs.at(i);\n        delete pGS;\n    }\n    gameSubjs.clear();\n    \/\/clear all other classes\n    Texture::cleanUp();\n    Shader::cleanUp();\n    DrawJob::cleanUp();\n    return 1;\n}\nint TheGame::onScreenResize(int width, int height) {\n    if (screenSize[0] == width && screenSize[1] == height)\n        return 0;\n    screenSize[0] = width;\n    screenSize[1] = height;\n    screenAspectRatio = (float)width \/ height;\n    glViewport(0, 0, width, height);\n    mainCamera.onScreenResize();\n    mylog(" screen size %d x %d\\n", width, height);\n    return 1;\n}\nint TheGame::run() {\n    getReady();\n    while (!bExitGame) {\n        drawFrame();\n    }\n    cleanUp();\n    return 1;\n}\n\n<\/pre><\/div>\n\n\n
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3. \u0412 \u043a\u043b\u0430\u0441\u0441\u0435 Camera <\/em> – \u043d\u043e\u0432\u044b\u0435 \u043f\u0435\u0440\u0435\u043c\u0435\u043d\u043d\u044b\u0435 \u0438 \u0444\u0443\u043d\u043a\u0446\u0438\u043e\u043d\u0430\u043b.<\/p>\n\n\n\n
\u0417\u0430\u043c\u0435\u043d\u0438\u043c Camera.h<\/em> \u043a\u043e\u0434 \u043d\u0430:<\/p>\n\n\n
\n#pragma once\n#include "Coords.h"\n#include "linmath.h"\n\nclass Camera\n{\npublic:\n\tCoords ownCoords;\n\tmat4x4 lookAtMatrix;\n\tfloat lookAtPoint[3] = { 0,0,0 };\n\tfloat focusDistance = 100;\n\tfloat viewRangeDg = 30;\n\tfloat stageSize[2] = { 500, 375 };\npublic:\n\tfloat pickDistance() { return pickDistance(this); };\n\tstatic float pickDistance(Camera* pCam);\n\tvoid setCameraPosition() { setCameraPosition(this); };\n\tstatic void setCameraPosition(Camera* pCam);\n\tvoid buildLookAtMatrix() { buildLookAtMatrix(this); };\n\tstatic void buildLookAtMatrix(Camera* pCam);\n\tvoid onScreenResize() { onScreenResize(this); };\n\tstatic void onScreenResize(Camera* pCam);\n};\n\n<\/pre><\/div>\n\n\n
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4. \u041f\u043e\u0434 xEngine <\/em>\u0434\u043e\u0431\u0430\u0432\u0438\u043c \u043d\u043e\u0432\u044b\u0439 C++ file Camera.cpp<\/strong><\/p>\n\n\n\n
Location: C:\\CPP\\engine\\<\/em><\/p>\n\n\n\n
\u041a\u043e\u0434:<\/p>\n\n\n
\n#include "Camera.h"\n#include "TheGame.h"\n#include "utils.h"\n\nextern TheGame theGame;\nextern float degrees2radians;\n\nfloat Camera::pickDistance(Camera* pCam) {\n\tfloat cotangentA = 1.0f \/ tanf(degrees2radians * pCam->viewRangeDg \/ 2);\n\tfloat cameraDistanceV = pCam->stageSize[1] \/ 2 * cotangentA;\n\tfloat cameraDistanceH = pCam->stageSize[0] \/ 2 * cotangentA \/ theGame.screenAspectRatio;\n\tpCam->focusDistance = fmax(cameraDistanceV, cameraDistanceH);\n\treturn pCam->focusDistance;\n}\nvoid Camera::setCameraPosition(Camera* pCam) {\n\tv3set(pCam->ownCoords.pos, 0, 0, -pCam->focusDistance);\n\tmat4x4_mul_vec4plus(pCam->ownCoords.pos, *pCam->ownCoords.getRotationMatrix(), pCam->ownCoords.pos, 1);\n\tfor (int i = 0; i < 3; i++)\n\t\tpCam->ownCoords.pos[i] += pCam->lookAtPoint[i];\n}\nvoid Camera::buildLookAtMatrix(Camera* pCam) {\n\tfloat cameraUp[4] = { 0,1,0,0 }; \/\/y - up\n\tmat4x4_mul_vec4plus(cameraUp, *pCam->ownCoords.getRotationMatrix(), cameraUp, 0);\n\tmat4x4_look_at(pCam->lookAtMatrix, pCam->ownCoords.pos, pCam->lookAtPoint, cameraUp);\n}\nvoid Camera::onScreenResize(Camera* pCam) {\n\tpCam->pickDistance();\n\tpCam->setCameraPosition();\n\tpCam->buildLookAtMatrix();\n}\n\n<\/pre><\/div>\n\n\n
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5. \u041a\u043e\u043c\u043f\u0438\u043b\u044f\u0446\u0438\u044f \u0438 \u0437\u0430\u043f\u0443\u0441\u043a.<\/p>\n\n\n\n
\u0412\u044b\u0433\u043b\u044f\u0434\u0438\u0442 \u043d\u0435\u043f\u043b\u043e\u0445\u043e.<\/p>\n\n\n\n
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6. \u041f\u0435\u0440\u0435-\u0437\u0430\u043f\u0443\u0441\u043a\u0430\u0435\u043c VS. \u041e\u0442\u043a\u0440\u044b\u0432\u0430\u0435\u043c  C:\\CPP\\a997modeler\\p_android\\p_android.sln<\/em>. <\/p>\n\n\n\n
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7. \u041f\u043e\u0434 xEngine <\/em>\u0434\u043e\u0431\u0430\u0432\u0438\u043c existing item Camera.cpp<\/em> \u0438\u0437 C:\\CPP\\engine<\/em><\/p>\n\n\n\n
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\u0414\u043e\u0431\u0430\u0432\u0438\u043c \u0440\u0435\u0430\u043a\u0446\u0438\u044e \u043d\u0430 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0435 \u0440\u0430\u0437\u043c\u0435\u0440\u043e\u0432 \u044d\u043a\u0440\u0430\u043d\u0430 \u0432 myglPollEvents()<\/em>.<\/p>\n\n\n\n
8. \u0417\u0430\u043c\u0435\u043d\u0438\u043c myplatform.cpp<\/em> \u043a\u043e\u0434 \u043d\u0430:<\/p>\n\n\n
\n#include <android\/log.h>\n#include "stdio.h"\n#include "TheGame.h"\n#include <sys\/stat.h>\t\/\/mkdir for Android\n\nextern struct android_app* androidApp;\nextern const ASensor* accelerometerSensor;\nextern ASensorEventQueue* sensorEventQueue;\n\nextern EGLDisplay androidDisplay;\nextern EGLSurface androidSurface;\nextern TheGame theGame;\n\nvoid mylog(const char* _Format, ...) {\n#ifdef _DEBUG\n    char outStr[1024];\n    va_list _ArgList;\n    va_start(_ArgList, _Format);\n    vsprintf(outStr, _Format, _ArgList);\n    __android_log_print(ANDROID_LOG_INFO, "mylog", outStr, NULL);\n    va_end(_ArgList);\n#endif\n};\n\nvoid mySwapBuffers() {\n\teglSwapBuffers(androidDisplay, androidSurface);\n}\nvoid myPollEvents() {\n\t\/\/ Read all pending events.\n\tint ident;\n\tint events;\n\tstruct android_poll_source* source;\n\n\t\/\/ If not animating, we will block forever waiting for events.\n\t\/\/ If animating, we loop until all events are read, then continue\n\t\/\/ to draw the next frame of animation.\n\twhile ((ident = ALooper_pollAll(0, NULL, &events,\n\t\t(void**)&source)) >= 0) {\n\n\t\t\/\/ Process this event.\n\t\tif (source != NULL) {\n\t\t\tsource->process(androidApp, source);\n\t\t}\n\n\t\t\/\/ If a sensor has data, process it now.\n\t\tif (ident == LOOPER_ID_USER) {\n\t\t\tif (accelerometerSensor != NULL) {\n\t\t\t\tASensorEvent event;\n\t\t\t\twhile (ASensorEventQueue_getEvents(sensorEventQueue,\n\t\t\t\t\t&event, 1) > 0) {\n\t\t\t\t\t\/\/LOGI("accelerometer: x=%f y=%f z=%f",\n\t\t\t\t\t\/\/\tevent.acceleration.x, event.acceleration.y,\n\t\t\t\t\t\/\/\tevent.acceleration.z);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\t\/\/ Check if we are exiting.\n\t\tif (androidApp->destroyRequested != 0) {\n\t\t\ttheGame.bExitGame = true;\n\t\t\tbreak;\n\t\t}\n\t}\n\t\/\/check screen size\n\tEGLint w, h;\n\teglQuerySurface(androidDisplay, androidSurface, EGL_WIDTH, &w);\n\teglQuerySurface(androidDisplay, androidSurface, EGL_HEIGHT, &h);\n\ttheGame.onScreenResize(w, h);\n}\nint myFopen_s(FILE** pFile, const char* filePath, const char* mode) {\n\t*pFile = fopen(filePath, mode);\n\tif (*pFile == NULL) {\n\t\tmylog("ERROR: can't open file %s\\n", filePath);\n\t\treturn -1;\n\t}\n\treturn 1;\n}\nint myMkDir(const char* outPath) {\n\tstruct stat info;\n\tif (stat(outPath, &info) == 0)\n\t\treturn 0; \/\/exists already\n\tint status = mkdir(outPath, S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH);\n\tif (status == 0)\n\t\treturn 1; \/\/Successfully created\n\tmylog("ERROR creating, status=%d, errno: %s.\\n", status, std::strerror(errno));\n\treturn -1;\n}\nvoid myStrcpy_s(char* dst, int maxSize, const char* src) {\n\tstrcpy(dst, src);\n\t\/\/fill tail by zeros\n\tint strLen = strlen(dst);\n\tif (strLen < maxSize)\n\t\tfor (int i = strLen; i < maxSize; i++)\n\t\t\tdst[i] = 0;\n}\n\n<\/pre><\/div>\n\n\n
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9. \u0412\u043a\u043b\u044e\u0447\u0430\u0435\u043c, \u0440\u0430\u0437\u0431\u043b\u043e\u043a\u0438\u0440\u0443\u0435\u043c, \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0430\u0435\u043c, \u0440\u0430\u0437\u0440\u0435\u0448\u0430\u0435\u043c.<\/p>\n\n\n\n
\u041a\u043e\u043c\u043f\u0438\u043b\u044f\u0446\u0438\u044f \u0438 \u0437\u0430\u043f\u0443\u0441\u043a:<\/p>\n\n\n\n
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\u041f\u0440\u0438 \u0441\u043c\u0435\u043d\u0435 \u0440\u0430\u0437\u043c\u0435\u0440\u043e\u0432 \u044d\u043a\u0440\u0430\u043d\u0430 \u043d\u0430\u0434\u043e \u043f\u0435\u0440\u0435\u0443\u0441\u0442\u0430\u043d\u043e\u0432\u0438\u0442\u044c \u043a\u0430\u043c\u0435\u0440\u0443 \u0442\u0430\u043a, \u0447\u0442\u043e\u0431\u044b \u0441\u0446\u0435\u043d\u0430 \u043e\u043f\u0442\u0438\u043c\u0430\u043b\u044c\u043d\u043e \u0437\u0430\u043f\u043e\u043b\u043d\u0438\u043b\u0430 \u043d\u043e\u0432\u044b\u0435 \u0440\u0430\u0437\u043c\u0435\u0440\u044b. \u041d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, \u0432 \u043d\u0430\u0448\u0435\u043c \u0441\u043b\u0443\u0447\u0430\u0435 \u0436\u0435\u043b\u0430\u0435\u043c\u044b\u0439 \u0440\u0430\u0437\u043c\u0435\u0440 \u0441\u0446\u0435\u043d\u044b, \u0441\u043a\u0430\u0436\u0435\u043c, 500×300 (\u0447\u0442\u043e\u0431\u044b \u043a\u0443\u0431\u0438\u043a \u0432\u043f\u0438\u0441\u044b\u0432\u0430\u043b\u0441\u044f \u0432 \u044d\u043a\u0440\u0430\u043d). \u0423\u0433\u043e\u043b \u0437\u0440\u0435\u043d\u0438\u044f \u043a\u0430\u043c\u0435\u0440\u044b \u0443 \u043d\u0430\u0441 30 \u0433\u0440\u0430\u0434\u0443\u0441\u043e\u0432. \u0437\u043d\u0430\u0447\u0438\u0442, ? \/ 250 = \u043a\u043e\u0441\u0438\u043d\u0443\u0441(15) \/ \u0441\u0438\u043d\u0443\u0441(15) = \u043a\u043e\u0442\u0430\u043d\u0433\u0435\u043d\u0441(15) ? = 250 * \u043a\u043e\u0442\u0430\u043d\u0433\u0435\u043d\u0441(15) = 250 * 3.73 = […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-697","post","type-post","status-publish","format-standard","hentry","category-cross-platform-3d"],"_links":{"self":[{"href":"https:\/\/writingagame.ru\/index.php\/wp-json\/wp\/v2\/posts\/697","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/writingagame.ru\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/writingagame.ru\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/writingagame.ru\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/writingagame.ru\/index.php\/wp-json\/wp\/v2\/comments?post=697"}],"version-history":[{"count":9,"href":"https:\/\/writingagame.ru\/index.php\/wp-json\/wp\/v2\/posts\/697\/revisions"}],"predecessor-version":[{"id":1351,"href":"https:\/\/writingagame.ru\/index.php\/wp-json\/wp\/v2\/posts\/697\/revisions\/1351"}],"wp:attachment":[{"href":"https:\/\/writingagame.ru\/index.php\/wp-json\/wp\/v2\/media?parent=697"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/writingagame.ru\/index.php\/wp-json\/wp\/v2\/categories?post=697"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/writingagame.ru\/index.php\/wp-json\/wp\/v2\/tags?post=697"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}