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Thread: Blitz Bomber...

  1. #1

    Blitz Bomber...

    I am hoping some of you can test this game on your phones, now that I have added the appropriate MIME types to my web server.

    Point your WAP phones to either the JAD file...
    http://www.savagesoftware.com.au/dow...litzBomber.jad
    or the JAR file..
    http://www.savagesoftware.com.au/dow...litzBomber.jar

    It should then download and install itself on your phone. Then it will be ready to play.

    The game is a simple bombing game where you have to clear all the buildings to create a path to be able to land your bi-plane safely. It's unfinished and I need to fix a few things, which I will do when I have some free time a couple of weeks.

    All feedback welcome and please let me know if it works on your phone and what model phone it is.
    <br /><br />There are a lot of people who are dead while they are still alive. I want to be alive until the day I die.<br />-= Paulo Coelho =-

  2. #2

    Blitz Bomber...

    Sony Ericsson K750i

    Worked well... nice job ^^

    Only one thing I realized. The very first building to the left doesn't seem to have collsion. I was able to fly through it several times without being destroyed.

    And: It's a little hard to aim the first few buildings when the plane switches the screenside.

    Very nice work! I wish I could prog something for mobile devices myself.

    Please let us now about updates!
    <a href="http://www.greatgamesexperiment.com/game/Valgard/?utm_source=gge&amp;utm_medium=badge_game"><img border="0" alt="GGE" title="GGE" src="http://static.greatgamesexperiment.com/badge/game/valgard/gge400x56.png"></a>

  3. #3

    Blitz Bomber...

    Thanks for the feedback Dirk. I am aware of the collision problems.
    I am in the process of adding some particle explosions when the bombs hit the buildings, though I'm not sure how much it will slow down the game. I will need to add the winning game scenario, because at the moment, even if you destroy all he buildings you still lose the game.

    Hopefully in a week or so I will finish it.

    A game play question, do you think it would be better if the plane flew the other way ( right to left ) at the same level, thus giving the player an extra chance to destroy the building, before it the plane drops down another 16 pixels?

    Quote Originally Posted by Huehnerschaender
    I wish I could prog something for mobile devices myself.
    I'm sure you could if you did not have the competition to worry about .
    <br /><br />There are a lot of people who are dead while they are still alive. I want to be alive until the day I die.<br />-= Paulo Coelho =-

  4. #4

    Blitz Bomber...

    In my opinion it sounds good to let the plane fly left/right in turn. This has several advantages.
    I find the game a little hard right in the beginning. Giving the player another chance of aiming is a good choice, plus, targeting the most left building is exactly as hard as targeting the most right one. I found myself always loosing because I had some buildings left on the left side.
    You can let it get harder just by increasing planes speed in the levels, so the double hit chance would be balanced.
    <a href="http://www.greatgamesexperiment.com/game/Valgard/?utm_source=gge&amp;utm_medium=badge_game"><img border="0" alt="GGE" title="GGE" src="http://static.greatgamesexperiment.com/badge/game/valgard/gge400x56.png"></a>

  5. #5

    Blitz Bomber...

    I finally added the small particle explosion ( 20 particles ) and nothing else just to get something working. I've uploaded it to the same location.

    Next on the list is fixing the problems mentioned earlier.
    <br /><br />There are a lot of people who are dead while they are still alive. I want to be alive until the day I die.<br />-= Paulo Coelho =-

  6. #6
    Legendary Member cairnswm's Avatar
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    Nov 2002
    Location
    Randburg, South Africa
    Posts
    1,537

    Blitz Bomber...

    Any chance of releasing that Particles code?
    William Cairns
    My Games: http://www.cairnsgames.co.za (Currently very inactive)
    MyOnline Games: http://TheGameDeveloper.co.za (Currently very inactive)

  7. #7

    Blitz Bomber...

    It's very basic, but here it is...
    [pascal]
    unit particle;

    interface

    type
    // a single particle
    TParticle = record
    state : integer; // state of the particle
    typ : integer; // type of particle effect
    x,y : integer; // world position of particle
    xv,yv : real; // velocity of particle
    curr_color_r : integer; // the current rendering color of particle
    curr_color_g : integer; // the current rendering color of particle
    curr_color_b : integer; // the current rendering color of particle
    start_color_r : integer; // the start color or range effect
    start_color_g : integer; // the start color or range effect
    start_color_b : integer; // the start color or range effect
    end_color_r : integer; // the ending color of range effect
    end_color_g : integer; // the ending color of range effect
    end_color_b : integer; // the ending color of range effect
    counter : integer; // general state transition timer
    max_count : integer; // max value for counter
    end;

    const
    // defines for particle system
    PARTICLE_STATE_DEAD = 0;
    PARTICLE_STATE_ALIVE = 1;

    // types of particles
    PARTICLE_TYPE_FLICKER = 0;
    PARTICLE_TYPE_FADE = 1;

    // color of particle
    PARTICLE_COLOR_RED = 0;
    PARTICLE_COLOR_GREEN = 1;
    PARTICLE_COLOR_BLUE = 2;
    PARTICLE_COLOR_WHITE = 3;

    MAX_PARTICLES = 20;

    // color ranges
    COLOR_RED_START = 32;
    COLOR_RED_END = 47;

    COLOR_GREEN_START = 96;
    COLOR_GREEN_END = 111;

    COLOR_BLUE_START = 144;
    COLOR_BLUE_END = 159;

    COLOR_WHITE_START = 16;
    COLOR_WHITE_END = 31;

    var
    particles : array[0..MAX_PARTICLES] of TParticle;
    particle_wind : integer;
    particle_gravity : real;

    procedure ResetExplosionParticles;

    procedure Draw;

    procedure Move;

    procedure Explode( aX, aY : integer );

    implementation

    uses
    common;

    procedure ResetExplosionParticles;
    var
    index, angle, velocity : integer;
    begin
    Randomize;

    // loop thru and reset all the particles to dead
    for index := 0 to MAX_PARTICLES do
    begin
    // compute random trajectory angle
    angle := random( 360 );
    // compute random trajectory velocity
    velocity := random( 4 ) + 2;
    particles[ index ].state := PARTICLE_STATE_ALIVE;
    particles[ index ].typ := PARTICLE_TYPE_FADE;
    particles[ index ].x := 0;
    particles[ index ].y := 0;
    particles[ index ].xv := Trunc( cos(angle) * velocity );
    particles[ index ].yv := Trunc( sin(angle) * velocity );
    particles[ index ].start_color_r := COLOR_RED_START;
    particles[ index ].end_color_r := COLOR_RED_END;
    particles[ index ].curr_color_r := particles[ index ].start_color_r;
    particles[ index ].counter := 0;
    particles[ index ].max_count := random( 3 ) + 3;
    end;
    end;

    procedure Move;
    var
    index : integer;
    begin
    for index := 0 to MAX_PARTICLES do
    begin
    // test if this particle is alive
    if (particles[index].state = PARTICLE_STATE_ALIVE) then
    begin
    // translate particle
    particles[index].x := Trunc(particles[index].x + particles[index].xv);
    particles[index].y := Trunc(particles[index].y + particles[index].yv);

    // update velocity based on gravity and wind
    particles[index].xv := particles[index].xv + particle_wind;
    particles[index].yv := particles[index].yv + particle_gravity;

    // now based on type of particle perform proper animation
    if (particles[index].typ = PARTICLE_TYPE_FLICKER ) then
    begin
    // simply choose a color in the color range and assign it to the current color
    particles[index].curr_color_r := Random( particles[index].start_color_r ) + particles[index].end_color_r;
    particles[index].curr_color_g := Random( particles[index].start_color_g ) + particles[index].end_color_g;
    particles[index].curr_color_b := Random( particles[index].start_color_b ) + particles[index].end_color_b;

    // now update counter
    particles[index].counter := particles[index].counter + 1;
    if (particles[index].counter >= particles[index].max_count) then
    begin
    // kill the particle
    particles[index].state := PARTICLE_STATE_DEAD;
    end; // end if
    end // end if
    else
    begin
    // must be a fade, be careful!
    // test if it's time to update color
    particles[index].counter := particles[index].counter + 1;
    if (particles[index].counter >= particles[index].max_count) then
    begin
    // reset counter
    particles[index].counter := 0;

    // update color
    particles[index].curr_color_r := particles[index].curr_color_r + 1;
    if ( particles[ index ].curr_color_r > particles[index].end_color_r ) then
    begin
    // transition is complete, terminate particle
    particles[index].state := PARTICLE_STATE_DEAD;

    end; // end if

    end; // end if

    end; // end else

    end; // end if

    end; // end for index
    end;

    procedure Draw;
    var
    index, x, y : integer;
    begin
    for index := 0 to MAX_PARTICLES do
    begin
    // test if particle is alive
    if (particles[index].state = PARTICLE_STATE_ALIVE) then
    begin
    // render the particle, perform world to screen transform
    x := particles[ index ].x;
    y := particles[ index ].y;

    // test for clip
    if ( x >= screenWidth )
    or ( x < 0 )
    or ( y >= screenHeight )
    or ( y < 0 ) then
    break;

    // draw the pixel
    SetColor(particles[index].curr_color_r, particles[index].curr_color_g, particles[index].curr_color_b);
    Plot(x, y);
    end; // end if

    end; // end for index
    end;

    procedure Explode( aX, aY : integer );
    var
    index : integer;
    begin
    // loop thru and set start position of to dead
    for index := 0 to MAX_PARTICLES do
    begin
    particles[ index ].x := aX + random( 2 );
    particles[ index ].y := aY + random( 3 );
    end;
    end;

    initialization
    particle_wind := 0;
    particle_gravity := 0.2;

    end.
    [/pascal]

    The only problem I noticed is that the colours don't seem to change, so I will need to sort that out. All the particles seem to appear as black at the moment.

    I also want to change the sin/cos function calls to look-up tables which I will store in my "common" unit. Not sure if it will speed things up, as it seems fine at the moment, but I suppose it couldn't hurt.
    <br /><br />There are a lot of people who are dead while they are still alive. I want to be alive until the day I die.<br />-= Paulo Coelho =-

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