void display(void){
adjustCamera();
glClear(GL_COLOR_BUFFER_BIT);
giveTexture();
glPushMatrix();
glTranslatef(demonX,demonY,0);
giveTextureDemon();
glPopMatrix();
glPushMatrix();
{
//translating to the left-bottom corner of our boundary
if(jumped){
moveCannon();
}
glTranslatef(cannonBaseX ,cannonBaseY,0);
glColor3f(BLACK);
drawObstacles();
//tranlating to the cannon's bottom
glRotatef(rot_angle , 0 , 0 , 1);
drawCannon();
drawPiston();
//draw Cannon Ball
curBall->drawUnreleased();
}
glPopMatrix();
displayScoreboard();
updateDemon();
//drawDemon();
manageTurtles();
//for every released ball...
for(int i=0;i<balls.size();i++){
balls[i]->drawReleased();
//cout << balls[i]->ballX << " " << balls[i]->ballY << " " << balls[i]->ballVelX << " " << balls[i]->ballVelY << endl;
if(balls[i]->stoped()){
removeBall(i);
}
}
ballTurtle();
ballDemon();
turtleCannon();
glFlush();
glutSwapBuffers();
}
// This function runs every frame
void renderScene()
{
// Clear the color buffer and the depth buffer
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// Clear the screen to white
glClearColor(0.0, 0.0, 0.0, 1.0);
// Tell OpenGL to use the shader program you've created.
glUseProgram(0);
// Draw the Gameobjects
glLineWidth(2.5);
glColor3f(0.2, 0.2, 0.8);
glBegin(GL_QUADS);
//Big container
glVertex2fv((float *) &big.bottomLeft);
glVertex2fv((float *)&big.bottomRight);
glVertex2fv((float *)&big.topRight);
glVertex2fv((float *)&big.topLeft);
//small container
glVertex2fv((float *)&small.bottomLeft);
glVertex2fv((float *)&small.bottomRight);
glVertex2fv((float *)&small.topRight);
glVertex2fv((float *)&small.topLeft);
//Tube joining the two containers
glVertex2f(big.bottomRight.x, big.bottomRight.y);
glVertex2f(small.bottomLeft.x, small.bottomLeft.y);
glVertex2f(small.bottomLeft.x, small.bottomLeft.y + 0.02f);
glVertex2f(big.bottomRight.x, big.bottomRight.y + 0.02f);
glEnd();
//The draw piston function draws the piston over the larger side.
//This is mainly done for representational purposes i.e. to make the example more obvious.
drawPiston();
}
