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authorVegard Storheil Eriksen <zyp@jvnv.net>2010-05-17 17:56:38 +0200
committerVegard Storheil Eriksen <zyp@jvnv.net>2010-05-17 17:56:38 +0200
commitf78606b6391b282426a73016fff9541320d4994b (patch)
tree769ecef93c22bd0381bfd704e4995b403cb96664
parent8bd8089c1e7ca92401e829d28819a35c3061ebd9 (diff)
Added Application-class.
-rw-r--r--application.cpp286
-rw-r--r--application.h41
-rw-r--r--bulletpattern.cpp4
-rw-r--r--main.cpp285
4 files changed, 338 insertions, 278 deletions
diff --git a/application.cpp b/application.cpp
new file mode 100644
index 0000000..072c7a8
--- /dev/null
+++ b/application.cpp
@@ -0,0 +1,286 @@
+#include "application.h"
+
+#include "texturesdl.h"
+
+#include <SDL/SDL_opengl.h>
+
+#include <iostream>
+#include <stdexcept>
+
+#include <cmath>
+
+class BulletPattern1 : public BulletPattern {
+ unsigned int base;
+ public:
+ BulletPattern1(bool reverse, unsigned int base) {
+ num_bullets = 0;
+ color_r = 1;
+ color_g = 0;
+ color_b = 1;
+ bullets = new float[128];
+ this->base = base;
+
+ int j = 0;
+ for(float i = 0; i < M_PI; i += 0.1, j++) {
+ bullets[j*4] = 50.0 + sinf(!reverse ? M_PI_2 + i : M_PI - i + M_PI_2) * 9;
+ bullets[j*4 + 1] = 80 + cosf(M_PI_2 + i) * 10;
+ bullets[j*4 + 2] = sinf(!reverse ? M_PI_2 + i : M_PI - i + M_PI_2) / 150.0;
+ bullets[j*4 + 3] = -0.01;
+ }
+ };
+ void update(unsigned int time, unsigned int step) {
+ if(num_bullets < 32 && base + num_bullets * 10 < time) {
+ num_bullets += time / 10 - num_bullets - base / 10;
+ if(num_bullets > 32) num_bullets = 32;
+ }
+ for(int i = 0; i < num_bullets; i++) {
+ bullets[i*4] += bullets[i*4 + 2] * step;
+ bullets[i*4 + 1] += bullets[i*4 + 3] * step;
+ }
+ }
+};
+
+class BulletPattern2 : public BulletPattern {
+ public:
+ BulletPattern2(unsigned int base) {
+ num_bullets = 0;
+ color_r = 0;
+ color_g = 1;
+ color_b = 0;
+ stride = sizeof(float);
+ bullets = new float[8*32*5];
+
+ int k = 0;
+ for(int j = 0; j < 8; j++) {
+ for(float i = 0; i < M_PI; i += 0.1, k++) {
+ bullets[k*5] = 50.0 + sinf(j % 2 ? M_PI_2 + i : M_PI - i + M_PI_2) * 9;
+ bullets[k*5 + 1] = 80 + cosf(M_PI_2 + i) * 10;
+ bullets[k*5 + 2] = sinf(j % 2 ? M_PI_2 + i : M_PI - i + M_PI_2) / 150.0;
+ bullets[k*5 + 3] = -0.01;
+ bullets[k*5 + 4] = base + j * 400 + i * 100;
+ }
+ }
+
+ };
+ void update(unsigned int time, unsigned int step) {
+ while(num_bullets < 256 && (unsigned int)(bullets[num_bullets*5 + 4]) < time) {
+ num_bullets++;
+ }
+ for(int i = 0; i < num_bullets; i++) {
+ bullets[i*5] += bullets[i*5 + 2] * step;
+ bullets[i*5 + 1] += bullets[i*5 + 3] * step;
+ }
+ }
+};
+
+
+Application::Application() {
+ // Initialize SDL
+ if(SDL_Init(SDL_INIT_VIDEO)) {
+ throw(std::runtime_error("SDL initialization failed"));
+ }
+ // Fetch the video info
+ const SDL_VideoInfo *info = SDL_GetVideoInfo();
+ if(!info) {
+ throw(std::runtime_error("SDL info query failed"));
+ }
+ // The SDL mode-flags
+ int flags = SDL_OPENGL; // OpenGL in SDL
+ flags |= SDL_GL_DOUBLEBUFFER; // Double buffering
+ flags |= SDL_HWPALETTE; // Hardware palette
+ // Check for hardware surface aviability
+ if(info->hw_available) {
+ flags |= SDL_HWSURFACE;
+ } else {
+ flags |= SDL_SWSURFACE;
+ }
+ // Check for hardware blit ability
+ if(info->blit_hw) {
+ flags |= SDL_HWACCEL;
+ }
+ // Setup double buffering
+ SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
+
+ SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24);
+
+ // Get our surface
+ surface = SDL_SetVideoMode(1280, 720, 32, flags);
+ if(!surface) {
+ throw(std::runtime_error("Video mode set failed"));
+ }
+
+ // Texturing
+ glEnable(GL_TEXTURE_2D);
+ // Blending
+ glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+ glEnable(GL_BLEND);
+ // Smooth shading
+ glShadeModel(GL_SMOOTH);
+
+ glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
+
+ glEnable(GL_POINT_SPRITE);
+ glTexEnvi(GL_POINT_SPRITE, GL_COORD_REPLACE, GL_TRUE);
+
+ glClearColor(0, 0, 0, 0);
+ glClearDepth(1);
+
+ please_quit = false;
+}
+
+Application::~Application() {
+
+}
+
+void Application::run() {
+
+ elapsed = 0;
+
+ font = new FTPixmapFont("VeraMono.ttf");
+ font->FaceSize(12);
+ texture = new TextureSDL("foo4.png");
+ shader = new GLShaderProgram();
+
+ patterns.push_back(new BulletPattern());
+ for(int i = 0; i < 8; i++) {
+ patterns.push_back(new BulletPattern1(i % 2 == 1, 5000 + i * 400));
+ }
+ patterns.push_back(new BulletPattern2(9000));
+
+ GLFragmentShader shader1("bullet_fragment.glsl");
+ GLVertexShader shader2("bullet_vertex.glsl");
+ shader->attach(shader1);
+ shader->attach(shader2);
+ shader->link();
+
+ unsigned int lasttick = SDL_GetTicks();
+
+ while(1) {
+ SDL_Event event;
+ SDL_PollEvent(&event);
+ if(event.type == SDL_QUIT) {
+ break;
+ } else if(event.type == SDL_KEYDOWN) {
+ event_keypress(event.key.keysym.sym);
+ }
+ if(please_quit) {
+ return;
+ }
+
+ unsigned int tick = SDL_GetTicks();
+ unsigned int step = tick - lasttick;
+ lasttick = tick;
+
+ main_loop(tick, step);
+
+ SDL_Delay(10);
+ }
+}
+
+void Application::main_loop(unsigned int tick, unsigned int step) {
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+ glViewport(-10, -10, 660, 740);
+ glScissor(0, 0, 640, 720);
+ glEnable(GL_SCISSOR_TEST);
+
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ gluPerspective(45, (float)660 / (float)740, 1, 100);
+
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+
+ if(!paused) {
+ elapsed += step;
+ for(std::vector<BulletPattern*>::iterator it = patterns.begin(); it < patterns.end(); it++) {
+ (*it)->update(elapsed, step);
+ }
+ }
+
+ float f = elapsed * 0.0005;
+
+ gluLookAt(
+ 5 * sinf(f), 1, 5 * cosf(f),
+ 0, 0, 0,
+ 5 * sinf(f), 2, 5 * cosf(f));
+
+ glBegin(GL_LINES);
+ for(int i = -10; i < 11; i++) {
+ if(i % 5 == 0)
+ glColor3f(1, 1, 1);
+ else
+ glColor3f(.5, .5, .5);
+ glVertex3f(i, 0, -10);
+ glVertex3f(i, 0, 10);
+ glVertex3f(-10, 0, i);
+ glVertex3f(10, 0, i);
+ }
+ glEnd();
+
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glOrtho(-10, 110, -10, 110, 0, 10);
+
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+
+ glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_S,GL_CLAMP_TO_EDGE);
+ glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_T,GL_CLAMP_TO_EDGE);
+ shader->use();
+ glPointSize(16.0);
+ glEnable(GL_TEXTURE_2D);
+ glBindTexture(GL_TEXTURE_2D, texture->tex());
+
+ glColor4f(1, 0, 0, 1);
+
+ for(std::vector<BulletPattern*>::iterator it = patterns.begin(); it < patterns.end(); it++) {
+ BulletPattern *bp = (*it);
+ glColor3f(bp->color_r, bp->color_g, bp->color_b);
+ bp->draw();
+ }
+
+ glDisable(GL_TEXTURE_2D);
+ glUseProgram(0);
+
+ glDisable(GL_SCISSOR_TEST);
+ glViewport(640, 0, 640, 720);
+
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glOrtho(0, 100, 0, 100, 0, 10);
+
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+
+ glColor4f(1, 1, 1, 1);
+
+ char s[0xff];
+
+ if(tick - lastframes >= 1000) {
+ fps = (float)frames * ((float)(tick - lastframes) / 1000.0f);
+ frames = 1;
+ lastframes = tick;
+ } else {
+ frames++;
+ }
+ snprintf(s, 0xff, "FPS: %.2f", fps);
+ glRasterPos2f(1, 1);
+ font->Render(s);
+
+ SDL_GL_SwapBuffers();
+}
+
+void Application::quit() {
+ please_quit = true;
+}
+
+void Application::event_keypress(SDLKey key) {
+ switch(key) {
+ case SDLK_ESCAPE:
+ quit();
+ break;
+ default:
+ break;
+ }
+}
diff --git a/application.h b/application.h
new file mode 100644
index 0000000..c9867b8
--- /dev/null
+++ b/application.h
@@ -0,0 +1,41 @@
+#ifndef APPLICATION_H
+#define APPLICATION_H
+
+#include <SDL/SDL.h>
+#include <FTGL/ftgl.h>
+#include <vector>
+
+#include "bulletpattern.h"
+#include "shader.h"
+#include "texture.h"
+
+class Application {
+ private:
+ SDL_Surface *surface;
+ bool please_quit;
+
+ bool paused;
+ unsigned int elapsed;
+ unsigned int frames;
+ unsigned int lastframes;
+ float fps;
+
+ FTFont* font;
+ Texture* texture;
+ GLShaderProgram* shader;
+
+ std::vector<BulletPattern*> patterns;
+
+ public:
+ Application();
+ ~Application();
+ void run();
+ void quit();
+
+ protected:
+ virtual void event_keypress(SDLKey key);
+
+ void main_loop(unsigned int tick, unsigned int step);
+};
+
+#endif
diff --git a/bulletpattern.cpp b/bulletpattern.cpp
index a2504f9..7d16e71 100644
--- a/bulletpattern.cpp
+++ b/bulletpattern.cpp
@@ -22,8 +22,8 @@ BulletPattern::BulletPattern() {
}
void BulletPattern::update(unsigned int time, unsigned int step) {
- if(num_bullets < 503 && num_bullets * 4 < time) {
- num_bullets += time / 4 - num_bullets;
+ while(num_bullets < 503 && num_bullets * 4 < time) {
+ num_bullets++;
}
for(int i = 0; i < num_bullets; i++) {
bullets[i*4] += bullets[i*4 + 2] * step;
diff --git a/main.cpp b/main.cpp
index 0d3a16a..19a4059 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1,283 +1,16 @@
#include <iostream>
-#include <fstream>
-#define GL_GLEXT_PROTOTYPES
-#ifndef __APPLE__
-#include <GL/gl.h>
-#include <GL/glu.h>
-#else
-#include <OpenGL/gl.h>
-#include <OpenGL/glu.h>
-#endif
-#include <math.h>
-#include <vector>
-#include <list>
-#include <queue>
-#include <SDL/SDL.h>
-#include <FTGL/ftgl.h>
-#include "texturesdl.h"
-#include "shader.h"
-#include "vector.h"
-#include "bullet.h"
-#include "bulletpattern.h"
+#include <stdexcept>
-const int width = 1280, height = 720;
-
-class BulletPattern1 : public BulletPattern {
- unsigned int base;
- public:
- BulletPattern1(bool reverse, unsigned int base) {
- num_bullets = 0;
- color_r = 1;
- color_g = 0;
- color_b = 1;
- bullets = new float[128];
- this->base = base;
-
- int j = 0;
- for(float i = 0; i < M_PI; i += 0.1, j++) {
- bullets[j*4] = 50.0 + sinf(!reverse ? M_PI_2 + i : M_PI - i + M_PI_2) * 9;
- bullets[j*4 + 1] = 80 + cosf(M_PI_2 + i) * 10;
- bullets[j*4 + 2] = sinf(!reverse ? M_PI_2 + i : M_PI - i + M_PI_2) / 150.0;
- bullets[j*4 + 3] = -0.01;
- }
- };
- void update(unsigned int time, unsigned int step) {
- if(num_bullets < 32 && base + num_bullets * 10 < time) {
- num_bullets += time / 10 - num_bullets - base / 10;
- if(num_bullets > 32) num_bullets = 32;
- }
- for(int i = 0; i < num_bullets; i++) {
- bullets[i*4] += bullets[i*4 + 2] * step;
- bullets[i*4 + 1] += bullets[i*4 + 3] * step;
- }
- }
-};
-
-class BulletPattern2 : public BulletPattern {
- public:
- BulletPattern2(unsigned int base) {
- num_bullets = 0;
- color_r = 0;
- color_g = 1;
- color_b = 0;
- stride = sizeof(float);
- bullets = new float[8*32*5];
-
- int k = 0;
- for(int j = 0; j < 8; j++) {
- for(float i = 0; i < M_PI; i += 0.1, k++) {
- bullets[k*5] = 50.0 + sinf(j % 2 ? M_PI_2 + i : M_PI - i + M_PI_2) * 9;
- bullets[k*5 + 1] = 80 + cosf(M_PI_2 + i) * 10;
- bullets[k*5 + 2] = sinf(j % 2 ? M_PI_2 + i : M_PI - i + M_PI_2) / 150.0;
- bullets[k*5 + 3] = -0.01;
- bullets[k*5 + 4] = base + j * 400 + i * 100;
- }
- }
-
- };
- void update(unsigned int time, unsigned int step) {
- while(num_bullets < 256 && (unsigned int)(bullets[num_bullets*5 + 4]) < time) {
- num_bullets++;
- }
- for(int i = 0; i < num_bullets; i++) {
- bullets[i*5] += bullets[i*5 + 2] * step;
- bullets[i*5 + 1] += bullets[i*5 + 3] * step;
- }
- }
-};
-
-bool fullscreen = false;
-void toggle_fullscreen() {
- fullscreen = !fullscreen;
- SDL_SetVideoMode(width, height, 0, SDL_OPENGL | SDL_GL_DOUBLEBUFFER | SDL_HWPALETTE | SDL_HWSURFACE | (fullscreen ? SDL_FULLSCREEN : 0));
-}
+#include "application.h"
int main(int, char**) {
- if(SDL_Init(SDL_INIT_VIDEO) < 0) {
- fprintf(stderr, "Failed to initialize SDL: %s\n", SDL_GetError());
- return 1;
- }
-
- SDL_Surface *surface = SDL_SetVideoMode(width, height, 0, SDL_OPENGL | SDL_GL_DOUBLEBUFFER | SDL_HWPALETTE | SDL_HWSURFACE);
- if(surface == NULL) {
- fprintf(stderr, "Failed to set video mode: %s\n", SDL_GetError());
- return 1;
- }
-
- SDL_Event event;
- bool running = true;
- bool paused = false;
-
- SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
- SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24);
-
- glEnable(GL_TEXTURE_2D);
-
- glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
- glEnable(GL_BLEND);
-
- glEnable(GL_POINT_SPRITE);
- glTexEnvi(GL_POINT_SPRITE, GL_COORD_REPLACE, GL_TRUE);
-
- glClearColor(0, 0, 0, 0);
- glClearDepth(1);
-
- glEnable(GL_DEPTH_TEST);
- glDepthFunc(GL_LEQUAL);
-
- glShadeModel(GL_SMOOTH);
-
- std::vector<BulletPattern*> patterns;
-
- patterns.push_back(new BulletPattern());
- for(int i = 0; i < 8; i++) {
- patterns.push_back(new BulletPattern1(i % 2 == 1, 5000 + i * 400));
- }
- patterns.push_back(new BulletPattern2(9000));
-
- TextureSDL texture1("foo.png");
- TextureSDL texture2("foo4.png");
-
- GLFragmentShader shader1("bullet_fragment.glsl");
- GLVertexShader shader2("bullet_vertex.glsl");
- GLShaderProgram program;
- program.attach(shader1);
- program.attach(shader2);
- program.link();
-
- FTPixmapFont font("VeraMono.ttf");
- font.FaceSize(12);
-
- float f = 0.0;
- float fps = 0.0;
- unsigned int lasttick = SDL_GetTicks();
- unsigned int elapsed = 0;
- unsigned int lastframes = 0,
- frames = 0;
- while(running) {
- while(SDL_PollEvent(&event)) {
- switch(event.type) {
- case SDL_QUIT:
- running = false;
- break;
- case SDL_KEYDOWN:
- switch(event.key.keysym.sym) {
- case SDLK_ESCAPE:
- running = false;
- break;
- case SDLK_SPACE:
- paused = !paused;
- lasttick = SDL_GetTicks();
- break;
- case 'f':
- toggle_fullscreen();
- break;
- default:
- break;
- }
- break;
- }
- }
-
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
- glViewport(-10, -10, 660, 740);
- glScissor(0, 0, 640, 720);
- glEnable(GL_SCISSOR_TEST);
-
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- gluPerspective(45, (float)width / (float)height, 1, 100);
-
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
-
- unsigned int tick = SDL_GetTicks();
- unsigned int step = tick - lasttick;
- lasttick = tick;
-
- if(!paused) {
- f += 0.0005 * step;
- elapsed += step;
- for(std::vector<BulletPattern*>::iterator it = patterns.begin(); it < patterns.end(); it++) {
- (*it)->update(elapsed, step);
- }
- }
-
- gluLookAt(
- 5 * sinf(f), 1, 5 * cosf(f),
- 0, 0, 0,
- 5 * sinf(f), 2, 5 * cosf(f));
-
- glBegin(GL_LINES);
- for(int i = -10; i < 11; i++) {
- if(i % 5 == 0)
- glColor3f(1, 1, 1);
- else
- glColor3f(.5, .5, .5);
- glVertex3f(i, 0, -10);
- glVertex3f(i, 0, 10);
- glVertex3f(-10, 0, i);
- glVertex3f(10, 0, i);
- }
- glEnd();
-
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- glOrtho(-10, 110, -10, 110, 0, 10);
-
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
-
- glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_S,GL_CLAMP_TO_EDGE);
- glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_T,GL_CLAMP_TO_EDGE);
- program.use();
- std::list<Bullet>::iterator it;
- glPointSize(16.0);
- glEnable(GL_TEXTURE_2D);
- glBindTexture(GL_TEXTURE_2D, texture2.tex());
-
- glColor4f(1, 0, 0, 1);
+ try {
+ Application* app = new Application();
- for(std::vector<BulletPattern*>::iterator it = patterns.begin(); it < patterns.end(); it++) {
- BulletPattern *bp = (*it);
- glColor3f(bp->color_r, bp->color_g, bp->color_b);
- bp->draw();
- }
-
- glDisable(GL_TEXTURE_2D);
- glUseProgram(0);
-
- glDisable(GL_SCISSOR_TEST);
- glViewport(640, 0, 640, 720);
-
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- glOrtho(0, 100, 0, 100, 0, 10);
-
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
-
- glColor4f(1, 1, 1, 1);
-
- char s[0xff];
-
- if(tick - lastframes >= 1000) {
- fps = (float)frames * ((float)(tick - lastframes) / 1000.0f);
- frames = 1;
- lastframes = tick;
- } else {
- frames++;
- }
- snprintf(s, 0xff, "FPS: %.2f", fps);
- glRasterPos2f(1, 1);
- font.Render(s);
-
-
- SDL_GL_SwapBuffers();
-
- SDL_Delay(10);
+ app->run();
+ } catch(std::runtime_error e) {
+ std::cerr << "Exception caught: " << e.what() << std::endl;
}
-
- SDL_Quit();
+
+ return 0;
}