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draw.cpp
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draw.cpp
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/*
Copyright 2013-2015 Rohit Nirmal
This file is part of Clonepoint.
Clonepoint is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Clonepoint is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Clonepoint. If not, see <http:https://www.gnu.org/licenses/>.
*/
#include <fstream>
#include "draw.h"
#include "locator.h"
PFNGLATTACHSHADERPROC glAttachShader;
PFNGLCOMPILESHADERPROC glCompileShader;
PFNGLCREATEPROGRAMOBJECTARBPROC glCreateProgramObject;
PFNGLCREATESHADEROBJECTARBPROC glCreateShaderObject;
PFNGLDELETEOBJECTARBPROC glDeleteObject;
PFNGLGETINFOLOGARBPROC glGetInfoLog;
PFNGLGETOBJECTPARAMETERIVARBPROC glGetObjectParameteriv;
PFNGLGETUNIFORMLOCATIONARBPROC glGetUniformLocation;
PFNGLLINKPROGRAMARBPROC glLinkProgram;
PFNGLSHADERSOURCEARBPROC glShaderSource;
PFNGLUNIFORM1IARBPROC glUniform1i;
PFNGLUSEPROGRAMOBJECTARBPROC glUseProgramObject;
PFNGLENABLEVERTEXATTRIBARRAYPROC glEnableVertexAttribArray;
PFNGLDISABLEVERTEXATTRIBARRAYPROC glDisableVertexAttribArray;
PFNGLBINDBUFFERPROC glBindBuffer;
PFNGLUNIFORMMATRIX4FVPROC glUniformMatrix4fv;
PFNGLGENBUFFERSPROC glGenBuffers;
PFNGLUNIFORM3FPROC glUniform3f;
PFNGLUNIFORM2FPROC glUniform2f;
PFNGLUNIFORM1FPROC glUniform1f;
PFNGLDELETEBUFFERSPROC glDeleteBuffers;
PFNGLBINDATTRIBLOCATIONPROC glBindAttribLocation;
PFNGLBUFFERDATAPROC glBufferData;
PFNGLVERTEXATTRIBPOINTERPROC glVertexAttribPointer;
PFNGLGETATTRIBLOCATIONPROC glGetAttribLocation;
PFNGLVALIDATEPROGRAMPROC glValidateProgram;
#if _WIN32
PFNGLACTIVETEXTUREARBPROC glActiveTexture;
#endif
PFNGLGETBUFFERSUBDATAARBPROC glGetBufferSubData;
#define BACKGROUND_WIDTH 2048
#define BACKGROUND_HEIGHT 720
struct point
{
GLfloat x;
GLfloat y;
GLfloat s;
GLfloat t;
};
struct SpriteVertex
{
float position[2];
float texcoord[2];
};
Renderer::Renderer()
{
}
Renderer::~Renderer()
{
LOGF((stdout, "Running Renderer destructor.\n"));
safeDeleteProgram(pgmText);
safeDeleteProgram(pgmMap);
safeDeleteProgram(pgmButton);
safeDeleteProgram(pgmColoredSprite);
safeDeleteProgram(pgmCrosslinkProp);
safeDeleteBuffer(text_vbo);
safeDeleteBuffer(entRectVBO);
safeDeleteBuffer(pointVBO);
safeDeleteBuffer(_screenVBO);
safeDeleteBuffer(_screenTexVBO);
delete font1;
delete font2;
deleteSpriteSheet(resPlayer);
deleteSpriteSheet(resPlayerLeft);
deleteSpriteSheet(resGuardRight);
deleteSpriteSheet(resGuardLeft);
deleteSpriteSheet(resEnforcerLeft);
deleteSpriteSheet(resEnforcerRight);
deleteSpriteSheet(resProfessionalLeft);
deleteSpriteSheet(resProfessionalRight);
deleteSpriteSheet(resSniperLeft);
deleteSpriteSheet(resSniperRight);
deleteSpriteSheet(resObjects);
deleteSpriteSheet(resLinkables);
deleteSpriteSheet(resInterface);
deleteSpriteSheet(resGlass);
safeDeleteTexture(bgClose);
safeDeleteTexture(bgMiddle);
safeDeleteTexture(bgFar);
safeDeleteTexture(bgVeryFar);
safeDeleteTexture(bgMainMenu);
}
void Renderer::safeDeleteBuffer(GLuint buf)
{
if (buf > 0)
glDeleteBuffers(1, &buf);
}
void Renderer::safeDeleteProgram(GLuint pgm)
{
if (pgm > 0)
glDeleteObject(pgm);
}
void Renderer::safeDeleteTexture(GLuint tex)
{
if (tex > 0)
glDeleteTextures(1, &tex);
}
void Renderer::deleteSpriteSheet(SpriteSheet* sheet)
{
if (sheet == NULL || sheet->getTexId() == 0)
{
return;
}
GLuint vbo = sheet->getVertexBuffer();
if (sheet->getNumberOfSprites() > 0)
{
glDeleteBuffers(sheet->getNumberOfSprites(), sheet->getIndexBuffers());
}
glDeleteBuffers(1, &vbo);
delete sheet;
}
void Renderer::toggleWireframe()
{
if (!wireframe)
{
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
}
else
{
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
}
wireframe = !wireframe;
}
bool Renderer::init(int x, int y)
{
_screenVBO = 0;
_screenTexVBO = 0;
glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_LESS);
//glClearColor(0.3960784313725490196078431372549, 0.61176470588235294117647058823529, 0.93725490196078431372549019607843, 1);
setResolution(x, y);
pgmMap = compileShaders("shaders/main.vert", "shaders/main.frag");
pgmText = compileShaders("shaders/text.vert", "shaders/text.frag");
pgmButton = compileShaders("shaders/button.vert", "shaders/button.frag");
pgmColoredSprite = compileShaders("shaders/sprite_colored.vert", "shaders/sprite_colored.frag");
pgmLight = compileShaders("shaders/main.vert", "shaders/light.frag");
pgmCamera = compileShaders("shaders/main.vert", "shaders/camera.frag");
pgmCrosslinkProp = compileShaders("shaders/button.vert", "shaders/sprite_crosslink.frag");
//initialize map shader variables
glUseProgramObject(pgmMap);
glLinkProgram(pgmMap); /*Must link program before uniforms and after attributes?*/
gWorldLocation = glGetUniformLocation(pgmMap, "gWorld");
//initialize text shader variables
/*Not sure if needed...
glUseProgram(pgmText);*/
glBindAttribLocation(pgmText, 0, "coord");
glBindAttribLocation(pgmText, 1, "texpos");
uniform_color = glGetUniformLocation(pgmText, "color");
uniform_alpha_scale = glGetUniformLocation(pgmText, "alpha_mod");
glGenBuffers(1, &text_vbo);
glBindAttribLocation(pgmButton, 0, "coord");
glBindAttribLocation(pgmButton, 1, "texpos");
screenshotIndex = 1;
wireframe = false;
_drawSceneBackgrounds = true;
_drawCollisionOutlines = false;
_enteredLightFlash = false;
_crosslinkBlur = false;
linkProgress = 0.0f;
SDL_ShowCursor(SDL_DISABLE);
bufferQuads();
font1 = new Font("./data/fonts/VeraMono.ttf", 32.0f);
font2 = new Font("./data/fonts/VeraMono.ttf", 16.0f);
resPlayer = new SpriteSheet("./data/sprites/player.png", ENTDIM, false);
resPlayerLeft = new SpriteSheet("./data/sprites/player.png", ENTDIM, true);
resGuardRight = new SpriteSheet("./data/sprites/guard.png", ENTDIM, false);
resGuardLeft = new SpriteSheet("./data/sprites/guard.png", ENTDIM, true);
resEnforcerLeft = new SpriteSheet("./data/sprites/enforcer.png", ENTDIM, true);
resEnforcerRight = new SpriteSheet("./data/sprites/enforcer.png", ENTDIM, false);
resProfessionalLeft = new SpriteSheet("./data/sprites/professional.png", ENTDIM, true);
resProfessionalRight = new SpriteSheet("./data/sprites/professional.png", ENTDIM, false);
resSniperLeft = new SpriteSheet("./data/sprites/sniper.png", ENTDIM, true);
resSniperRight = new SpriteSheet("./data/sprites/sniper.png", ENTDIM, false);
resObjects = new SpriteSheet("./data/sprites/objects.png", ENTDIM, false);
resLinkables = new SpriteSheet("./data/sprites/linkable.png", ENTDIM, false);
resInterface = new SpriteSheet("./data/sprites/interface.png", 32, false);
resGlass = new SpriteSheet("./data/sprites/glass.png", 8, false);
//backgrounds
bgClose = loadTexture("./data/backgrounds/bgClose.png");
bgMiddle = loadTexture("./data/backgrounds/bgMiddle.png");
bgFar = loadTexture("./data/backgrounds/bgFar.png");
bgVeryFar = loadTexture("./data/backgrounds/bgVeryFar.png");
bgMainMenu = loadTexture("./data/backgrounds/menus/main.png");
bgCredits = loadTexture("./data/backgrounds/menus/credits.png");
bgOptions = loadTexture("./data/backgrounds/menus/options.png");
bgLoadMap = loadTexture("./data/backgrounds/menus/loadmap.png");
bgPaused = loadTexture("./data/backgrounds/menus/paused.png");
bgUpgrades = loadTexture("./data/backgrounds/menus/upgrades.png");
bgActive = bgMainMenu;
if (resPlayer->getTexId() == 0 ||
resPlayerLeft->getTexId() == 0 ||
resGuardRight->getTexId() == 0 ||
resGuardLeft->getTexId() == 0 ||
resEnforcerLeft->getTexId() == 0 ||
resEnforcerRight->getTexId() == 0 ||
resProfessionalLeft->getTexId() == 0 ||
resProfessionalRight->getTexId() == 0 ||
resSniperLeft->getTexId() == 0 ||
resSniperRight->getTexId() == 0 ||
resObjects->getTexId() == 0 ||
resLinkables->getTexId() == 0 ||
resInterface->getTexId() == 0 ||
resGlass->getTexId() == 0)
{
deleteSpriteSheet(resPlayer);
deleteSpriteSheet(resPlayerLeft);
deleteSpriteSheet(resGuardRight);
deleteSpriteSheet(resGuardLeft);
deleteSpriteSheet(resEnforcerLeft);
deleteSpriteSheet(resEnforcerRight);
deleteSpriteSheet(resProfessionalLeft);
deleteSpriteSheet(resProfessionalRight);
deleteSpriteSheet(resSniperLeft);
deleteSpriteSheet(resSniperRight);
deleteSpriteSheet(resObjects);
deleteSpriteSheet(resLinkables);
deleteSpriteSheet(resInterface);
deleteSpriteSheet(resGlass);
return false;
}
generateSheetBuffers(resPlayer, ENTDIM);
generateSheetBuffers(resPlayerLeft, ENTDIM);
generateSheetBuffers(resGuardRight, ENTDIM);
generateSheetBuffers(resGuardLeft, ENTDIM);
generateSheetBuffers(resEnforcerLeft, ENTDIM);
generateSheetBuffers(resEnforcerRight, ENTDIM);
generateSheetBuffers(resProfessionalLeft, ENTDIM);
generateSheetBuffers(resProfessionalRight, ENTDIM);
generateSheetBuffers(resSniperLeft, ENTDIM);
generateSheetBuffers(resSniperRight, ENTDIM);
generateSheetBuffers(resObjects, ENTDIM);
generateSheetBuffers(resLinkables, ENTDIM);
generateSheetBuffers(resInterface, 32);
generateSheetBuffers(resGlass, 8);
_mouseOverStrings[MO_CircuitBox] = "A circuit box. Use it to unlock its circuit.";
_mouseOverStrings[MO_LightFixture] = "A light fixture. Toggles its light when activated.";
_mouseOverStrings[MO_MainComputer] = "A computer terminal. Hack these to complete mission objectives.";
_mouseOverStrings[MO_HandScanner] = "A hand scanner. Only guards can use these.";
_mouseOverStrings[MO_Elevator] = "An elevator switch. Makes nearby enemies look when an elevator arrives.";
_mouseOverStrings[MO_MotionScanner] = "A motion detector. Activates when any living entity passes through.";
_mouseOverStrings[MO_Switch] = "A light switch.";
_mouseOverStrings[MO_Door] = "A door. Opens or closes when activated.";
_mouseOverStrings[MO_TrapDoor] = "A trap door. Opens when activated, then closes after a time.";
_mouseOverStrings[MO_VaultDoor] = "A vault door. Opens when activated, then closes after a time.";
_mouseOverStrings[MO_SoundDetector] = "A sound detector. Activated by loud sounds nearby.";
_mouseOverStrings[MO_Alarm] = "An alarm. When activated, alerts nearby guard to turn it off.";
_mouseOverStrings[MO_PowerSocket] = "A power socket. Knocks out guards nearby when activated.";
_mouseOverStrings[MO_SecurityCamera] = "A security camera. Activates whenever you enter its field of vision.";
_mouseOverStrings[MO_Guard] = "A Guard. Shoots on sight.";
_mouseOverStrings[MO_Enforcer] = "An Enforcer. Cannot be pounced.";
_mouseOverStrings[MO_Professional] = "A Professional. Has faster reflexes, can see in the dark, shoots when held at gunpoint.";
_mouseOverStrings[MO_Sniper] = "A Sniper. You probably won't make it out.";
for (size_t i = 0; i < NUMBER_OF_MOUSEOVER_OBJECTS; i++)
{
getBoxDimsAroundText(_mouseOverStrings[i], font2, &_mouseOverDims[i]);
}
_messageStrings[SM_Start] = "Welcome to Clonepoint.";
_messageStrings[SM_Jumping] = "Use the mouse to jump on to the side of the building.";
_messageStrings[SM_Falling] = "You can survive any fall.";
_messageStrings[SM_Guards1] = "Avoid the guard's field of vision. The mouse pointer turns red where it can be seen.\
\nPounce on guards to knock them out.";
_messageStrings[SM_Guards2] = "Turn off the light. Guards will search for the nearest switch to turn the light back on.\
\nYou are much less visible in darkness.";
_messageStrings[SM_Crosslink1] = "Enter Crosslink and drag a connection from the light switch to the door to proceed.";
_messageStrings[SM_Crosslink2] = "Good job! Use Crosslink to get to your objectives in creative ways.";
_messageStrings[SM_Objectives] = "Hack all computer terminals and go to the exit to end the level.";
_messageStrings[SM_Elevators] = "Enemies cannot see you while you are in an elevator.";
_messageStrings[SM_Optional] = "You can disable these tutorial messages in the Options menu.";
_messageStrings[SM_Circuits] = "You can't rewire the objects here directly. You need to find their circuit box.\
\nBypass the circuit box upstairs to hack them in Crosslink.";
_messageStrings[SM_ObjectivesIncomplete] = "Objectives not completed.";
handleSettingsChange();
return true;
}
void Renderer::setResolution(int x, int y)
{
winX = x;
winY = y;
orthographic = mat4f_orthographic(0.0f, winX, winY, 0.0f, -5.0f, 5.0f);
glViewport(0, 0, winX, winY);
bufferScreenVBO((float)winX, (float)winY);
}
bool CheckGLExtension(const char* ext, const char* list)
{
const char *str = strstr(list, ext);
if (!str)
{
return false;
}
const char ch = str[strlen(ext)];
return ((ch == ' ') || (ch == '\t') || (ch == '\0'));
}
bool Renderer::initShaders()
{
char* extensions = (char*)glGetString(GL_EXTENSIONS);
bool shaders_supported = false;
if (CheckGLExtension("GL_ARB_shader_objects", extensions) &&
CheckGLExtension("GL_ARB_shading_language_100", extensions) &&
CheckGLExtension("GL_ARB_vertex_shader", extensions) &&
CheckGLExtension("GL_ARB_fragment_shader", extensions))
{
glAttachShader = (PFNGLATTACHSHADERPROC)SDL_GL_GetProcAddress("glAttachShader");
glCompileShader = (PFNGLCOMPILESHADERPROC)SDL_GL_GetProcAddress("glCompileShader");
glCreateProgramObject = (PFNGLCREATEPROGRAMOBJECTARBPROC)SDL_GL_GetProcAddress("glCreateProgramObjectARB");
glCreateShaderObject = (PFNGLCREATESHADEROBJECTARBPROC)SDL_GL_GetProcAddress("glCreateShaderObjectARB");
glDeleteObject = (PFNGLDELETEOBJECTARBPROC)SDL_GL_GetProcAddress("glDeleteObjectARB");
glGetInfoLog = (PFNGLGETINFOLOGARBPROC)SDL_GL_GetProcAddress("glGetInfoLogARB");
glGetObjectParameteriv = (PFNGLGETOBJECTPARAMETERIVARBPROC)SDL_GL_GetProcAddress("glGetObjectParameterivARB");
glGetUniformLocation = (PFNGLGETUNIFORMLOCATIONARBPROC)SDL_GL_GetProcAddress("glGetUniformLocationARB");
glLinkProgram = (PFNGLLINKPROGRAMARBPROC)SDL_GL_GetProcAddress("glLinkProgramARB");
glShaderSource = (PFNGLSHADERSOURCEARBPROC)SDL_GL_GetProcAddress("glShaderSourceARB");
glUniform1i = (PFNGLUNIFORM1IARBPROC)SDL_GL_GetProcAddress("glUniform1iARB");
glUseProgramObject = (PFNGLUSEPROGRAMOBJECTARBPROC)SDL_GL_GetProcAddress("glUseProgramObjectARB");
glEnableVertexAttribArray = (PFNGLENABLEVERTEXATTRIBARRAYPROC)SDL_GL_GetProcAddress("glEnableVertexAttribArray");
glDisableVertexAttribArray = (PFNGLDISABLEVERTEXATTRIBARRAYPROC)SDL_GL_GetProcAddress("glDisableVertexAttribArray");
glBindBuffer = (PFNGLBINDBUFFERPROC)SDL_GL_GetProcAddress("glBindBuffer");
glUniformMatrix4fv = (PFNGLUNIFORMMATRIX4FVPROC)SDL_GL_GetProcAddress("glUniformMatrix4fv");
glGenBuffers = (PFNGLGENBUFFERSPROC)SDL_GL_GetProcAddress("glGenBuffers");
glUniform3f = (PFNGLUNIFORM3FPROC)SDL_GL_GetProcAddress("glUniform3f");
glUniform2f = (PFNGLUNIFORM2FPROC)SDL_GL_GetProcAddress("glUniform2f");
glUniform1f = (PFNGLUNIFORM1FPROC)SDL_GL_GetProcAddress("glUniform1f");
glDeleteBuffers = (PFNGLDELETEBUFFERSPROC)SDL_GL_GetProcAddress("glDeleteBuffers");
glBindAttribLocation = (PFNGLBINDATTRIBLOCATIONPROC)SDL_GL_GetProcAddress("glBindAttribLocation");
glBufferData = (PFNGLBUFFERDATAPROC)SDL_GL_GetProcAddress("glBufferData");
glVertexAttribPointer = (PFNGLVERTEXATTRIBPOINTERPROC)SDL_GL_GetProcAddress("glVertexAttribPointer");
glGetAttribLocation = (PFNGLGETATTRIBLOCATIONPROC)SDL_GL_GetProcAddress("glGetAttribLocation");
glValidateProgram = (PFNGLVALIDATEPROGRAMPROC)SDL_GL_GetProcAddress("glValidateProgram");
#if _WIN32
glActiveTexture = (PFNGLACTIVETEXTUREARBPROC)SDL_GL_GetProcAddress("glActiveTexture");
#endif
glGetBufferSubData = (PFNGLGETBUFFERSUBDATAARBPROC)SDL_GL_GetProcAddress("glGetBufferSubData");
if (glAttachShader &&
glCompileShader &&
glCreateProgramObject &&
glCreateShaderObject &&
glDeleteObject &&
glGetInfoLog &&
glGetObjectParameteriv &&
glGetUniformLocation &&
glLinkProgram &&
glShaderSource &&
glUniform1i &&
glUseProgramObject &&
glEnableVertexAttribArray &&
glDisableVertexAttribArray &&
glBindBuffer &&
glUniformMatrix4fv &&
glGenBuffers &&
glUniform3f &&
glUniform2f &&
glUniform1f &&
glDeleteBuffers &&
glBindAttribLocation &&
glBufferData &&
glVertexAttribPointer &&
glGetAttribLocation &&
glValidateProgram
#if _WIN32
&& glActiveTexture
#endif
)
{
shaders_supported = true;
}
else
{
LOGF((stderr, "Error getting OpenGL function pointers!\n"));
}
}
return shaders_supported;
}
void Renderer::takeScreenshot()
{
sprintf(screenshot_filename, "screenshot%i.bmp", screenshotIndex);
image = SDL_CreateRGBSurface(SDL_SWSURFACE, winX, winY, 24, 0x000000FF, 0x0000FF00, 0x00FF0000, 0);
glReadBuffer(GL_FRONT);
glReadPixels(0, 0, winX, winY, GL_RGB, GL_UNSIGNED_BYTE, image->pixels);
image = flipSurface(image, Flip_Vertical);
SDL_SaveBMP(image, screenshot_filename);
SDL_FreeSurface(image);
screenshotIndex++;
}
void Renderer::drawState(BaseState* state)
{
size_t i;
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
bool is_menu = dynamic_cast<MenuState*>(state);
bool is_game = dynamic_cast<GameState*>(state);
if (is_menu)
{
drawMenuBackground(bgActive);
for (i = 0; i < static_cast<MenuState*>(state)->getButtonCount(); i++)
{
drawButton(static_cast<MenuState*>(state)->getButtonAt(i));
}
}
else if (is_game)
{
drawScene(static_cast<GameState*>(state)->getScene());
}
for (i = 0; i < static_cast<MenuState*>(state)->getLabelCount(); i++)
{
drawTextLabel(state->getLabelAt(i));
}
if (is_menu || is_game)
{
drawMouseCursor(state);
}
}
void Renderer::drawMouseCursor(BaseState* state)
{
int x, y;
state->getMousePosition(&x, &y);
bool safe = true;
if (dynamic_cast<GameState*>(state) && static_cast<GameState*>(state)->isMouseCursorSeen())
{
safe = false;
}
drawSpriteBind(x, y, 4.0f, 0, resInterface, Locator::getSpriteManager()->getIndex("./data/sprites/interface.sprites",
safe ? "pointer_safe" : "pointer_unsafe"), SDM_Normal, 1, 1, 1);
}
void Renderer::drawText(float x, float y, const char* text, float red, float green, float blue, float alpha_scale, Font* font)
{
float xCurr = x;
glBindBuffer(GL_ARRAY_BUFFER, text_vbo);
glUseProgramObject(pgmText);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, font->getTexture());
glUniformMatrix4fv(glGetUniformLocation(pgmText, "proj_mat"), 1, GL_TRUE, &orthographic.m[0][0]);
glUniform3f(uniform_color, red, green, blue);
glUniform1f(uniform_alpha_scale, alpha_scale);
glEnableVertexAttribArray(0);
glVertexAttribPointer(0, 4, GL_FLOAT, GL_FALSE, 0, NULL);
std::vector<point> coords;
point p;
point top_left;
point bottom_right;
stbtt_aligned_quad q;
int c = 0;
while (*text)
{
if ((*text >= 32 && *text < 127) || *text == '\n')
{
if (*text == '\n')
{
y += font->getSize();
xCurr = x;
++text;
continue;
}
stbtt_GetBakedQuad(font->data(), 512, 512, *text - 32, &xCurr, &y, &q, 1);
p.x = q.x0;
p.y = q.y0;
p.s = q.s0;
p.t = q.t0;
coords.push_back(p);
top_left.x = q.x0;
top_left.y = q.y1;
top_left.s = q.s0;
top_left.t = q.t1;
bottom_right.x = q.x1;
bottom_right.y = q.y0;
bottom_right.s = q.s1;
bottom_right.t = q.t0;
coords.push_back(top_left);
coords.push_back(bottom_right);
coords.push_back(top_left);
coords.push_back(bottom_right);
p.x = q.x1;
p.y = q.y1;
p.s = q.s1;
p.t = q.t1;
coords.push_back(p);
c += 6;
}
++text;
}
glBufferData(GL_ARRAY_BUFFER, sizeof(point) * coords.size(), coords.data(), GL_DYNAMIC_DRAW);
glEnable(GL_BLEND);
glDisable(GL_DEPTH_TEST);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDrawArrays(GL_TRIANGLES, 0, c);
glDisable(GL_BLEND);
glEnable(GL_DEPTH_TEST);
glDisableVertexAttribArray(0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
}
void Renderer::drawTextButton(TextButton* tb)
{
float r, g, b;
r = g = b = 0;
tb->getColors(&r, &g, &b);
drawText(tb->getX(), tb->getY() + 32, tb->getText(), r, g, b, 1.0f, font1);
}
void Renderer::drawImageButton(ImageButton* ib)
{
drawSprite(ib->getX(), ib->getY(), 2, 0, resInterface, ib->getSpriteIndex(), SDM_Normal, 1, 1, 1);
}
void Renderer::drawButton(Button* button)
{
glBindTexture(GL_TEXTURE_2D, resInterface->getTexId());
if (dynamic_cast<TextButton*>(button))
{
drawTextButton(static_cast<TextButton*>(button));
}
if (dynamic_cast<ImageButton*>(button))
{
drawImageButton(static_cast<ImageButton*>(button));
}
}
void Renderer::drawTextLabel(TextLabel* tl)
{
if (!tl->isVisible())
{
return;
}
int x, y;
float r, g, b, a;
x = y = r = g = b = 0;
tl->getPosition(&x, &y);
tl->getColors(&r, &g, &b, &a);
drawText(x, y, tl->getText().c_str(), r, g, b, a, font1);
}
void Renderer::bufferQuads()
{
//2 triangles.
float verts[] = { 0.0, 0.0,
0.0, ENTDIM,
ENTDIM, 0.0f,
0.0, ENTDIM,
ENTDIM, 0.0f,
ENTDIM, ENTDIM
};
glGenBuffers(1, &entRectVBO);
glBindBuffer(GL_ARRAY_BUFFER, entRectVBO);
glBufferData(GL_ARRAY_BUFFER, 12 * sizeof(float), &verts[0], GL_STATIC_DRAW);
glBindBuffer(GL_ARRAY_BUFFER, 0);
float vertsp[] = { 0.0, 0.0,
0.0, 4.0f,
4.0f, 0.0f,
0.0, 4.0f,
4.0, 0.0f,
4.0f, 4.0f
};
glGenBuffers(1, &pointVBO);
glBindBuffer(GL_ARRAY_BUFFER, pointVBO);
glBufferData(GL_ARRAY_BUFFER, 12 * sizeof(float), &vertsp[0], GL_STATIC_DRAW);
glBindBuffer(GL_ARRAY_BUFFER, 0);
}
void Renderer::bufferScreenVBO(float x, float y)
{
if (_screenVBO)
glDeleteBuffers(1, &_screenVBO);
if (_screenTexVBO)
glDeleteBuffers(1, &_screenTexVBO);
float verts[] = { 0.0f, 0.0f,
0.0f, y,
x, 0.0f,
0.0f, y,
x, 0.0f,
x, y
};
float vertsAndTexes[] = { 0.0f, 0.0f, 0.0f, 0.0f,
0.0f, y, 0.0f, 1.0f,
x, 0.0f, 1.0f, 0.0f,
0.0f, y, 0.0f, 1.0f,
x, 0.0f, 1.0f, 0.0f,
x, y, 1.0f, 1.0f
};
glGenBuffers(1, &_screenVBO);
glGenBuffers(1, &_screenTexVBO);
glBindBuffer(GL_ARRAY_BUFFER, _screenVBO);
glBufferData(GL_ARRAY_BUFFER, 12 * sizeof(float), &verts[0], GL_STATIC_DRAW);
glBindBuffer(GL_ARRAY_BUFFER, _screenTexVBO);
glBufferData(GL_ARRAY_BUFFER, 24 * sizeof(float), &vertsAndTexes[0], GL_STATIC_DRAW);
glBindBuffer(GL_ARRAY_BUFFER, 0);
}
void Renderer::drawRect(float x, float y, float z, GLuint vbo, float red, float green, float blue, float alpha, bool fill)
{
glUseProgramObject(pgmMap);
glUniform3f(glGetUniformLocation(pgmMap, "color"), red, green, blue);
glUniform1f(glGetUniformLocation(pgmMap, "alpha"), alpha);
quadTransform = mat4f_mult(orthographic, mat4f_translate(x, y, z));
glUniformMatrix4fv(glGetUniformLocation(pgmMap, "gWorld"), 1, GL_TRUE, &quadTransform.m[0][0]);
glEnableVertexAttribArray(glGetAttribLocation(pgmMap, "Position"));
glBindBuffer(GL_ARRAY_BUFFER, vbo);
glVertexAttribPointer(glGetAttribLocation(pgmMap, "Position"), 2, GL_FLOAT, GL_FALSE, 0, NULL);
if (!fill)
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDrawArrays(GL_TRIANGLES, 0, 6);
glDisable(GL_BLEND);
if (!fill)
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
glDisableVertexAttribArray(glGetAttribLocation(pgmMap, "Position"));
glBindBuffer(GL_ARRAY_BUFFER, 0);
glUseProgramObject(0);
}
void Renderer::drawSpriteBind(float x, float y, float z, float rotation, SpriteSheet* resource, unsigned int index, SpriteDrawMode mode, float red, float green, float blue)
{
glBindTexture(GL_TEXTURE_2D, resource->getTexId());
drawSprite(x, y, z, rotation, resource, index, mode, red, green, blue);
}
void Renderer::drawSprite(float x, float y, float z, float rotation, SpriteSheet* resource, unsigned int index, SpriteDrawMode mode, float red, float green, float blue)
{
float xOff, yOff;
GLuint pgm;
resource->getClipPosition(index, &xOff, &yOff);
if (mode == SDM_LinkableCross)
{
pgm = pgmColoredSprite;
glUseProgramObject(pgm);
glUniform3f(glGetUniformLocation(pgm, "color"), red, green, blue);
}
else
{
pgm = (mode == SDM_Normal) ? pgmButton : pgmCrosslinkProp;
glUseProgramObject(pgm);
}
glBindBuffer(GL_ARRAY_BUFFER, resource->getVertexBuffer());
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, resource->getIndexBuffers()[index]);
glActiveTexture(GL_TEXTURE0);
//Cast position to int to prevent "shimmering" texture.
quadTransform = mat4f_mult(orthographic, mat4f_translate((int)x - xOff, (int)y - yOff, z));
quadTransform = mat4f_mult(quadTransform, mat4f_translate(xOff + (resource->getTileDim() / 2) , yOff + (resource->getTileDim() / 2), 0));
quadTransform = mat4f_mult(quadTransform, mat4f_rotate(0, 0, rotation));
quadTransform = mat4f_mult(quadTransform, mat4f_translate(-xOff - (resource->getTileDim() / 2), -yOff - (resource->getTileDim() / 2) , 0));
glUniformMatrix4fv(glGetUniformLocation(pgm, "proj_mat"), 1, GL_TRUE, &quadTransform.m[0][0]);
glEnableVertexAttribArray(glGetAttribLocation(pgm, "Position"));
glEnableVertexAttribArray(glGetAttribLocation(pgm, "TexCoord"));
SpriteVertex* vert = NULL;
glVertexAttribPointer(glGetAttribLocation(pgm, "Position"), 2, GL_FLOAT, GL_FALSE, sizeof(SpriteVertex), vert->position);
glVertexAttribPointer(glGetAttribLocation(pgm, "TexCoord"), 2, GL_FLOAT, GL_FALSE, sizeof(SpriteVertex), vert->texcoord);
glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, NULL);
glDisableVertexAttribArray(glGetAttribLocation(pgm, "Position"));
glDisableVertexAttribArray(glGetAttribLocation(pgm, "TexCoord"));
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glUseProgramObject(0);
}
void Renderer::drawFieldOfView(Scene* scene, FieldOfView* fov, GLuint program)
{
if (!fov->_active)
{
return;
}
float r, g, b;
fov->getColors(&r, &g, &b);
float* verts = fov->getVertData();
glUseProgramObject(program);
quadTransform = mat4f_mult(orthographic, mat4f_translate(-scene->getCamera().x, -scene->getCamera().y, 0));
glUniformMatrix4fv(glGetUniformLocation(program, "gWorld"), 1, GL_TRUE, &quadTransform.m[0][0]);
glUniform3f(glGetUniformLocation(program, "Color"), r, g, b);
glUniform2f(glGetUniformLocation(program, "lightCenter"), fov->getPosition().x - scene->getCamera().x , winY - fov->getPosition().y + scene->getCamera().y);
glEnableVertexAttribArray(glGetAttribLocation(program, "Position"));
glVertexAttribPointer(glGetAttribLocation(program, "Position"), 2, GL_FLOAT, GL_FALSE, 0, verts);
glDrawArrays(GL_TRIANGLE_FAN, 0, fov->getNumberOfVerts());
glDisableVertexAttribArray(glGetAttribLocation(program, "Position"));
}
void Renderer::generateSheetBuffers(SpriteSheet* sheet, int tileDim)
{
unsigned int spriteCount = sheet->getNumberOfSprites();
unsigned int i, j;
float clipX, clipY;
float sheetWidth = sheet->getWidth();
float sheetHeight = sheet->getHeight();
std::vector<SpriteVertex> verts(spriteCount * 6);
GLuint* ibos = sheet->getIndexBuffers();
GLuint indices[6] = {0, 0, 0, 0, 0, 0};
glGenBuffers(spriteCount, ibos);
for (i = 0; i < spriteCount; i++)
{
for (j = 0; j < 6; j++)
{
indices[j] = i * 6 + j;
}
sheet->getClipPosition(i, &clipX, &clipY);
verts[indices[0]].position[0] = clipX;
verts[indices[0]].position[1] = clipY;
verts[indices[0]].texcoord[0] = clipX / sheetWidth;
verts[indices[0]].texcoord[1] = clipY / sheetHeight;
verts[indices[1]].position[0] = clipX;
verts[indices[1]].position[1] = clipY + tileDim;
verts[indices[1]].texcoord[0] = clipX / sheetWidth;
verts[indices[1]].texcoord[1] = (clipY + tileDim) / sheetHeight;
verts[indices[2]].position[0] = clipX + tileDim;
verts[indices[2]].position[1] = clipY;
verts[indices[2]].texcoord[0] = (clipX + tileDim) / sheetWidth;
verts[indices[2]].texcoord[1] = clipY / sheetHeight;
verts[indices[3]] = verts[indices[1]];
verts[indices[4]] = verts[indices[2]];
verts[indices[5]].position[0] = clipX + tileDim;
verts[indices[5]].position[1] = clipY + tileDim;
verts[indices[5]].texcoord[0] = (clipX + tileDim) / sheetWidth;
verts[indices[5]].texcoord[1] = (clipY + tileDim) / sheetHeight;
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, ibos[i]);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, 6 * sizeof(GLuint), indices, GL_STATIC_DRAW);
LOGF((stdout, "Created Element Buffer Object %i.\n", ibos[i]));
}
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
GLuint vbo = sheet->getVertexBuffer();
glGenBuffers(1, &vbo);
glBindBuffer(GL_ARRAY_BUFFER, vbo);
glBufferData(GL_ARRAY_BUFFER, spriteCount * 6 * sizeof(SpriteVertex), verts.data(), GL_STATIC_DRAW);
LOGF((stdout, "Created Vertex Buffer Object %i.\n", vbo));
sheet->setVertexBuffer(vbo);
glBindBuffer(GL_ARRAY_BUFFER, 0);
}
//Draw a Rect structure of arbitrary size - no VBO.
void Renderer::drawRect2(Rect rect, float red, float green, float blue, int z)
{
glUseProgramObject(pgmMap);
glUniform3f(glGetUniformLocation(pgmMap, "color"), red, green, blue);
float verts[] = { 0.0f, 0.0f,
0.0f, rect.h,
0.0f, 0.0f,
rect.w, 0.0f,
0.0f, rect.h,
rect.w, rect.h,
rect.w, 0.0f,
rect.w, rect.h
};
quadTransform = mat4f_mult(orthographic, mat4f_translate(rect.x, rect.y, z));
glUniformMatrix4fv(glGetUniformLocation(pgmMap, "gWorld"), 1, GL_TRUE, &quadTransform.m[0][0]);
glEnableVertexAttribArray(glGetAttribLocation(pgmMap, "Position")); /*vertex coords*/
glVertexAttribPointer(glGetAttribLocation(pgmMap, "Position"), 2, GL_FLOAT, GL_FALSE, 0, verts);
glDrawArrays(GL_LINES, 0, 8);
glDisableVertexAttribArray(glGetAttribLocation(pgmMap, "Position"));
glUseProgramObject(0);
}
void Renderer::drawRect2Fill(Rect rect, float red, float green, float blue, int z)
{
glUseProgramObject(pgmMap);
glUniform3f(glGetUniformLocation(pgmMap, "color"), red, green, blue);
float verts[] = { 0.0f, 0.0f,
0.0f, rect.h,
rect.w, 0.0f,
0.0f, rect.h,
rect.w, 0.0f,
rect.w, rect.h
};
quadTransform = mat4f_mult(orthographic, mat4f_translate(rect.x, rect.y, z));
glUniformMatrix4fv(glGetUniformLocation(pgmMap, "gWorld"), 1, GL_TRUE, &quadTransform.m[0][0]);
glEnableVertexAttribArray(glGetAttribLocation(pgmMap, "Position")); /*vertex coords*/
glVertexAttribPointer(glGetAttribLocation(pgmMap, "Position"), 2, GL_FLOAT, GL_FALSE, 0, verts);
glDrawArrays(GL_TRIANGLES, 0, 6);
glDisableVertexAttribArray(glGetAttribLocation(pgmMap, "Position"));
glUseProgramObject(0);
}
void Renderer::drawCollisionVols(Scene* scene)
{
Map* map = scene->getMap();
int numVols = map->getNumberOfCollideVols();
Rect rect;
for (int i = 0; i < numVols; i++)
{
if (map->getCollideVolAt(i).active())
{
rect = map->getCollideVolAt(i).rect;
rect.x -= scene->getCamera().x;
rect.y -= scene->getCamera().y;
if (map->getCollideVolAt(i).glass())
drawRect2(rect, 0, 1, 1, 1);
else if (_drawCollisionOutlines)
{
drawRect2(rect, 0.40625f, 0.71875f, 0.91796875f, 1);
}
}
}
}
void Renderer::drawEntities(Scene* scene)
{
Map* map = scene->getMap();
Rect cam = scene->getCamera();
size_t numEnts = map->getNumberOfEnts();
size_t numParticles = scene->getNumberOfParticles();
Entity* ent;
Particle* particle;
vec2f position;
size_t i;
Rect vol;
glBindTexture(GL_TEXTURE_2D, resObjects->getTexId());
for (i = 0; i < numEnts; i++)
{
ent = map->getEntAt(i);
position = ent->getPosition();
vol = ent->getCollisionRect();
vol.x -= scene->getCamera().x;
vol.y -= scene->getCamera().y;
if (ent->_highlighted)
{
drawRect2(vol, 1, 1, 1, 1);
}
if (dynamic_cast<LinkableEntity*>(ent) || dynamic_cast<Enemy*>(ent))
{
}
else if (dynamic_cast<ElevatorDoor*>(ent))
{
ElevatorDoor* ed = static_cast<ElevatorDoor*>(ent);
if (ed->isOpening() || ed->isClosing())
{
drawSprite( position.x - cam.x,
position.y - cam.y,
1,
ent->getRotation(),
resObjects,
Locator::getSpriteManager()->getIndex("./data/sprites/objects.sprites", "elevatoropen"),
scene->inCrosslinkMode() ? SDM_PropCross : SDM_Normal, 1, 0, 1);
}
drawSprite( position.x - cam.x,
position.y - cam.y,
(ed->isOpening() || ed->isClosing()) ? 2.75f : 1.5f,
ent->getRotation(),
resObjects,
ent->getCurrentSprite(),
scene->inCrosslinkMode() ? SDM_PropCross : SDM_Normal, 1, 0, 1);
}
else
{
drawSprite( position.x - cam.x,
position.y - cam.y,
1,
ent->getRotation(),
resObjects,
ent->getCurrentSprite(),
scene->inCrosslinkMode() ? SDM_PropCross : SDM_Normal, 1, 0, 1);
}
}
if (map->subwayFound())
{
drawSprite( map->getSubwayPosition().x - cam.x,
map->getSubwayPosition().y - cam.y - ENTDIM,
3,
0,
resObjects,