Making tilemap non moveable but still collides.

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Mmarzex

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Posted: 7th Mar 2013 07:45

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Hi all,

So I am currently drawing my tilemap in from a file where it draws every 16 pixels as a seperate 16x16 tile and loading it on to the screen. My question is how do I make them not move when hit or moved on by a sprite?

Thanks,
~ Mmarzex

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Markus

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Posted: 7th Mar 2013 10:24

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?
SetSpritePhysicsIsSensor(

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erebusman

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Posted: 7th Mar 2013 16:10

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@Mmarzex : assuming your sprites are say 'the ground the player walks on' then you would actually not make them physics sprites at all.

Just set their depth below the player. You may want to use FixSpriteToscreen so they don't move.

Only if it is a physics sprites will the static command work.

You only need physics for sprites the player will collide with such as walls, boulders, monsters, etc.

If you want the physics system to detect a collision for picking up something like a coin or health powerup; then the SetSpritePhysicsIsSensor that Markus recommends is good for that use.

So essentially ; decide which sprites need to be physics and what type of physics.

The rest - don't need to be! Hopefully that is what you were looking for?

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Mmarzex

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Posted: 7th Mar 2013 17:27

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I need The background to move with the player. I'm doing a platformer. Would the best approach be to fix the tilemap to the screen and then unset it as it moves past a certain point?

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Mmarzex

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Posted: 7th Mar 2013 17:37

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Also I want to be able to have the player stand on the tilemap. Fixing it to the screen does not work for that.

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DVader

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Posted: 7th Mar 2013 18:19

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Perhaps a screen shot would help, so we can see what your tiles look like. If your map is not that large you can just scroll the screen using setviewoffset(). Or if it is a large map then you would have to redraw the tiles every 16 pixels, so you only have to display the on screen tiles.

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Mmarzex

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Posted: 7th Mar 2013 18:35

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The scrolling isn't my issue right now. What I don't understand is how I'm suppose to make it that the tiles don't move but that my player sprite effectively walks on them and doesn't just fall through. I already plan to use setviewoffset() as that will make it a bit easier for the size of the map I'm using.

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Funnell7

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Posted: 7th Mar 2013 19:09

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Just set the ground sprites as 'Static'.

SetSpritePhysicsOn( iSpriteIndex, mode)

mode - The physics mode to use for this sprite, 1=static, 2=dynamic, 3=kinematic

Your character will them be able to walk across them, without them moving...

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Mmarzex

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Posted: 7th Mar 2013 22:54

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Alright setting it to static worked now though I have an issue with my tiles being drawn. It Keeps giving me this when I run the game:

Now here is what I drew it up as

+ Code Snippet

2 0 2 2 2 0 0 2 2 2 0 0 0 0 0 0 2 2 2
1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

Now my code is this for my Level.cpp where the functions for drawing are

//
//  Level.cpp
//  template
//
//  Created by Max Marze on 3/3/13.
//
//

#include "Level.h"
#include <iostream>
#include <fstream>
using namespace std;

// LEVEL FILE NAMES
#define LEVEL_ONE "/Users/maxmarze/Documents/AGK_BETA/AGK/IDE/templates/template_mac_xcode4/levelOne.txt"
#define LEVEL_TWO ""
#define LEVEL_THREE ""
#define LEVEL_FOUR ""
#define LEVEL_FIVE ""

/// NOT ACTUALLY LEVEL JUST END WITH SCORE AND CREDITS
#define LEVEL_SIX ""
#define GAME_OVER ""

void Level::CreateLevel(int level)
{
    switch (level) {
        case 1:
            CreateNextLevel(LEVEL_ONE);
            break;
        case 2:
            CreateNextLevel(LEVEL_TWO);
            break;
        case 3:
            CreateNextLevel(LEVEL_THREE);
            break;
        case 4:
            CreateNextLevel(LEVEL_FOUR);
            break;
        case 5:
            CreateNextLevel(LEVEL_FIVE);
            break;
        default:
            CreateNextLevel(GAME_OVER);
            break;
    }
}

void Level::LoadTiles()
{
    int i = 0;
    // DEBUG ///////
    tileIds[i] = agk::LoadImage("/Users/maxmarze/Documents/AGK_BETA/AGK/IDE/templates/template_mac_xcode4/air.png");
    cout << i << endl;
    i++;
    tileIds[i] = agk::LoadImage("/Users/maxmarze/Documents/AGK_BETA/AGK/IDE/templates/template_mac_xcode4/dirt_resize.png");
    i++;
    tileIds[i] = agk::LoadImage("/Users/maxmarze/Documents/AGK_BETA/AGK/IDE/templates/template_mac_xcode4/grass_top_resize.png");
    cout << i << endl;
    tileNumber = i;
    cout << endl << endl;
}

void Level::LoadTileMap(const string& filename)
{
    fstream mapFile(filename.c_str());
    for(int r = 0; r < MAX_TILES; r++)
    {
        for(int c = 0; c < MAX_TILES; c++)
        {
            int temp = 0;
            if(!mapFile.eof())
            {
                mapFile >> temp;
                tileMap[r][c] = tileIds[temp];
            } else
            {
                tileMap[r][c] = tileIds[0];
            }
        }
    }
}

void Level::DrawTiles()
{
    cout << tileIds[0] << endl;
    cout << tileIds[1] << endl;
    float height = 400.f;
    //float height = 0.f;
    float width = 0.f;
    //int i = 0;
    numOfTileSprites = 0;
    for(int r = 0; r < MAX_TILES; r++)
    {
        for(int c = 0; c < MAX_TILES; c++)
        {
            if(tileMap[r][c] != tileIds[0])
            {
                tileSprites[numOfTileSprites] = agk::CreateSprite(tileMap[r][c]);
                agk::SetSpriteScale(tileSprites[numOfTileSprites], SCALE, SCALE);
                agk::SetSpritePhysicsOn(tileSprites[numOfTileSprites], 1);
                //agk::SetSpriteGroup(tileSprites[numOfTileSprites], 1);
                //agk::SetSpritePhysicsMass(tileSprites[numOfTileSprites], 100.f);
                //agk::FixSpriteToScreen(tileSprites[numOfTileSprites], 1);
                agk::SetSpritePosition(tileSprites[numOfTileSprites], width, height);
            }
            width += (16.f * SCALE);
            //i++;
            numOfTileSprites++;
        }
        height += (16.f * SCALE);
        width = 100.f;
    }
}

void Level::CheckCollision(const Player& player)
{
    for(int i = 0; i < numOfTileSprites; i++)
    {

}
}

void Level::CheckCollision(const Enemy& enemy)
{
    for(int i = 0; i < numOfTileSprites; i++)
    {
        
    }
}

///// CALLED AT START
///// CALLED WHEN END OF LEVEL IS REACHED TO PROGRESS TO NEXT LEVEL
void Level::CreateNextLevel(const string& levelName)
{
    LoadTiles();
    LoadTileMap(levelName);
    DrawTiles();
}

+ Code Snippet

//
//  Level.cpp
//  template
//
//  Created by Max Marze on 3/3/13.
//
//

#include "Level.h"
#include <iostream>
#include <fstream>
using namespace std;

// LEVEL FILE NAMES
#define LEVEL_ONE "/Users/maxmarze/Documents/AGK_BETA/AGK/IDE/templates/template_mac_xcode4/levelOne.txt"
#define LEVEL_TWO ""
#define LEVEL_THREE ""
#define LEVEL_FOUR ""
#define LEVEL_FIVE ""

/// NOT ACTUALLY LEVEL JUST END WITH SCORE AND CREDITS
#define LEVEL_SIX ""
#define GAME_OVER ""

void Level::CreateLevel(int level)
{
    switch (level) {
        case 1:
            CreateNextLevel(LEVEL_ONE);
            break;
        case 2:
            CreateNextLevel(LEVEL_TWO);
            break;
        case 3:
            CreateNextLevel(LEVEL_THREE);
            break;
        case 4:
            CreateNextLevel(LEVEL_FOUR);
            break;
        case 5:
            CreateNextLevel(LEVEL_FIVE);
            break;
        default:
            CreateNextLevel(GAME_OVER);
            break;
    }
}

void Level::LoadTiles()
{
    int i = 0;
    // DEBUG ///////
    tileIds[i] = agk::LoadImage("/Users/maxmarze/Documents/AGK_BETA/AGK/IDE/templates/template_mac_xcode4/air.png");
    cout << i << endl;
    i++;
    tileIds[i] = agk::LoadImage("/Users/maxmarze/Documents/AGK_BETA/AGK/IDE/templates/template_mac_xcode4/dirt_resize.png");
    i++;
    tileIds[i] = agk::LoadImage("/Users/maxmarze/Documents/AGK_BETA/AGK/IDE/templates/template_mac_xcode4/grass_top_resize.png");
    cout << i << endl;
    tileNumber = i;
    cout << endl << endl;
}

void Level::LoadTileMap(const string& filename)
{
    fstream mapFile(filename.c_str());
    for(int r = 0; r < MAX_TILES; r++)
    {
        for(int c = 0; c < MAX_TILES; c++)
        {
            int temp = 0;
            if(!mapFile.eof())
            {
                mapFile >> temp;
                tileMap[r][c] = tileIds[temp];
            } else
            {
                tileMap[r][c] = tileIds[0];
            }
        }
    }
}

void Level::DrawTiles()
{
    cout << tileIds[0] << endl;
    cout << tileIds[1] << endl;
    float height = 400.f;
    //float height = 0.f;
    float width = 0.f;
    //int i = 0;
    numOfTileSprites = 0;
    for(int r = 0; r < MAX_TILES; r++)
    {
        for(int c = 0; c < MAX_TILES; c++)
        {
            if(tileMap[r][c] != tileIds[0])
            {
                tileSprites[numOfTileSprites] = agk::CreateSprite(tileMap[r][c]);
                agk::SetSpriteScale(tileSprites[numOfTileSprites], SCALE, SCALE);
                agk::SetSpritePhysicsOn(tileSprites[numOfTileSprites], 1);
                //agk::SetSpriteGroup(tileSprites[numOfTileSprites], 1);
                //agk::SetSpritePhysicsMass(tileSprites[numOfTileSprites], 100.f);
                //agk::FixSpriteToScreen(tileSprites[numOfTileSprites], 1);
                agk::SetSpritePosition(tileSprites[numOfTileSprites], width, height);
            }
            width += (16.f * SCALE);
            //i++;
            numOfTileSprites++;
        }
        height += (16.f * SCALE);
        width = 100.f;
    }
}

void Level::CheckCollision(const Player& player)
{
    for(int i = 0; i < numOfTileSprites; i++)
    {

    }
}

void Level::CheckCollision(const Enemy& enemy)
{
    for(int i = 0; i < numOfTileSprites; i++)
    {
        
    }
}

///// CALLED AT START
///// CALLED WHEN END OF LEVEL IS REACHED TO PROGRESS TO NEXT LEVEL
void Level::CreateNextLevel(const string& levelName)
{
    LoadTiles();
    LoadTileMap(levelName);
    DrawTiles();
}

I'm not sure why that is happening.

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Jimmanator

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Posted: 10th Mar 2013 22:21 Edited at: 10th Mar 2013 22:23

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If you are meaning that the top row is offset from the other rows you need to change
This :

void Level::DrawTiles()
{
    cout << tileIds[0] << endl;
    cout << tileIds[1] << endl;
    float height = 400.f;
    //float height = 0.f;
    float width = 0.f;
    //int i = 0;
    numOfTileSprites = 0;
    for(int r = 0; r < MAX_TILES; r++)
    {
        for(int c = 0; c < MAX_TILES; c++)
        {
            if(tileMap[r][c] != tileIds[0])
            {
                tileSprites[numOfTileSprites] = agk::CreateSprite(tileMap[r][c]);
                agk::SetSpriteScale(tileSprites[numOfTileSprites], SCALE, SCALE);
                agk::SetSpritePhysicsOn(tileSprites[numOfTileSprites], 1);
                //agk::SetSpriteGroup(tileSprites[numOfTileSprites], 1);
                //agk::SetSpritePhysicsMass(tileSprites[numOfTileSprites], 100.f);
                //agk::FixSpriteToScreen(tileSprites[numOfTileSprites], 1);
                agk::SetSpritePosition(tileSprites[numOfTileSprites], width, height);
            }
            width += (16.f * SCALE);
            //i++;
            numOfTileSprites++;
        }
        height += (16.f * SCALE);
        width = 100.f;
    }
}

+ Code Snippet

void Level::DrawTiles()
{
    cout << tileIds[0] << endl;
    cout << tileIds[1] << endl;
    float height = 400.f;
    //float height = 0.f;
    float width = 0.f;
    //int i = 0;
    numOfTileSprites = 0;
    for(int r = 0; r < MAX_TILES; r++)
    {
        for(int c = 0; c < MAX_TILES; c++)
        {
            if(tileMap[r][c] != tileIds[0])
            {
                tileSprites[numOfTileSprites] = agk::CreateSprite(tileMap[r][c]);
                agk::SetSpriteScale(tileSprites[numOfTileSprites], SCALE, SCALE);
                agk::SetSpritePhysicsOn(tileSprites[numOfTileSprites], 1);
                //agk::SetSpriteGroup(tileSprites[numOfTileSprites], 1);
                //agk::SetSpritePhysicsMass(tileSprites[numOfTileSprites], 100.f);
                //agk::FixSpriteToScreen(tileSprites[numOfTileSprites], 1);
                agk::SetSpritePosition(tileSprites[numOfTileSprites], width, height);
            }
            width += (16.f * SCALE);
            //i++;
            numOfTileSprites++;
        }
        height += (16.f * SCALE);
        width = 100.f;
    }
}

To this:

void Level::DrawTiles()
{
    cout << tileIds[0] << endl;
    cout << tileIds[1] << endl;
    float height = 400.f;
    //float height = 0.f;
    float width = 0.f;
    //int i = 0;
    numOfTileSprites = 0;
    for(int r = 0; r < MAX_TILES; r++)
    {
        for(int c = 0; c < MAX_TILES; c++)
        {
            if(tileMap[r][c] != tileIds[0])
            {
                tileSprites[numOfTileSprites] = agk::CreateSprite(tileMap[r][c]);
                agk::SetSpriteScale(tileSprites[numOfTileSprites], SCALE, SCALE);
                agk::SetSpritePhysicsOn(tileSprites[numOfTileSprites], 1);
                //agk::SetSpriteGroup(tileSprites[numOfTileSprites], 1);
                //agk::SetSpritePhysicsMass(tileSprites[numOfTileSprites], 100.f);
                //agk::FixSpriteToScreen(tileSprites[numOfTileSprites], 1);
                agk::SetSpritePosition(tileSprites[numOfTileSprites], width, height);
            }
            width += (16.f * SCALE);
            //i++;
            numOfTileSprites++;
        }
        height += (16.f * SCALE);
        width = 0.0f;
    }
}

+ Code Snippet

void Level::DrawTiles()
{
    cout << tileIds[0] << endl;
    cout << tileIds[1] << endl;
    float height = 400.f;
    //float height = 0.f;
    float width = 0.f;
    //int i = 0;
    numOfTileSprites = 0;
    for(int r = 0; r < MAX_TILES; r++)
    {
        for(int c = 0; c < MAX_TILES; c++)
        {
            if(tileMap[r][c] != tileIds[0])
            {
                tileSprites[numOfTileSprites] = agk::CreateSprite(tileMap[r][c]);
                agk::SetSpriteScale(tileSprites[numOfTileSprites], SCALE, SCALE);
                agk::SetSpritePhysicsOn(tileSprites[numOfTileSprites], 1);
                //agk::SetSpriteGroup(tileSprites[numOfTileSprites], 1);
                //agk::SetSpritePhysicsMass(tileSprites[numOfTileSprites], 100.f);
                //agk::FixSpriteToScreen(tileSprites[numOfTileSprites], 1);
                agk::SetSpritePosition(tileSprites[numOfTileSprites], width, height);
            }
            width += (16.f * SCALE);
            //i++;
            numOfTileSprites++;
        }
        height += (16.f * SCALE);
        width = 0.0f;
    }
}

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