If you don't live on the moon, you have heard of Conitec's brand new lite-C, a new ide which incorporates the Acknex engine and allows us to create regular applications and small, 2D and 3D games easily. To prove that, I have improved the code from my lite-C physics workshop, creating a full game that looks like this:
and uses less than 50 lines of code, just like this:
#include <acknex.h>
#include <default.c>
VECTOR ball_speed;
var soundtrack_handle;
ENTITY* ball;
SOUND* ball_wav = "ball.wav";
void kick_ball(void) // makes the ball jump when the player presses the "space" key
{
VECTOR kick_speed;
kick_speed.x = 10;
kick_speed.y = 50 * (key_cul - key_cur);
kick_speed.z = 250; // ball jump height
vec_rotate(kick_speed, camera.pan);
phent_addvelcentral(ball, kick_speed);
snd_play (ball_wav, 100, 0);
}
function main()
{
video_screen = 1; // run in full screen mode
video_mode = 8; // set the resolution to 1024x768 pixels
on_space = kick_ball;
media_loop ("brittle.mp3", NULL, 50);
fps_max = 70;
level_load("roller.wmb"); // load the level
wait (2); // wait until the level is loaded
ent_createlayer("stars+6.tga", SKY | CUBE | VISIBLE, 0); // create the sky layer
ball = ent_create ("ball.mdl", vector(-38200, -30, 200), NULL); // create the ball
ph_setgravity (vector(0, 0, -386)); // set the gravity
phent_settype (ball, PH_RIGID, PH_SPHERE); // set the physics entity type
phent_setmass (ball, 3, PH_SPHERE); // and its mass
phent_setfriction (ball, 80); // set the friction
phent_setdamping (ball, 40, 40); // set the damping
phent_setelasticity (ball, 50, 20); // set the elasticity
while (ball.z > -1000)
{
ball_speed.x = 15 * (key_cur - key_cul); // move the ball using the cursor keys
ball_speed.y = 2.3 + 15 * (key_cuu - 0.15 * key_cud); // 25 sets the x / y movement speeds
ball_speed.z = 0; // no need to move on the vertical axis
phent_addtorqueglobal (ball, ball_speed); // add a torque (an angular force) to the ball
camera.x = ball.x - 300; // keep the camera 300 quants behind the ball
camera.y = ball.y; // using the same y with the ball
camera.z = ball.z + 1000; // and place it 1000 quants above the ball
camera.tilt = -60; // make it look downwards
wait (1);
}
while (key_any) {wait (1);} // wait until the player releases all the keys
media_stop (soundtrack_handle); // stop the music; another instance of it will run again shortly
main(); // and then run the game again
}
Talk about productivity! The game uses a physics-based ball which can be maneuvered using the arrow keys; use the space key if the ball falls off a platform, but don't expect miracles - you won't be able to save it every time.
So what are you waiting for? Go here and get lite-C: http://www.conitec.net/english/gstudio/litec1.htm and install it, and then open the roller.c script from inside the \roller folder that is zipped inside Aum62's "Resources". Run the script and prepare for countless minutes of fun! (or hair pulling)