Dark GDK need help with jumping onto a sprite and jumping off the sprite. 2D side scroller.

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CHADALAK1

13

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Joined: 16th Sep 2011

Location: Sioux City

Posted: 19th Sep 2011 20:33

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#include "DarkGDK.h"

const int REFRESH_RATE = 60;

const int BACK_IMAGE_NUMBER = 1;
const int BACK_SPRITE_NUMBER = 1;
const int MARIO_IMAGE_NUMBER = 2;
const int MARIO_SPRITE_NUMBER = 2;

const int MARIO_START_X = 400;
const int MARIO_START_Y = 405;

const int STARTY = 405;
const int STARTY2 = 385;
int xSpeed = 2;
int ySpeed = 0;
const int GRAVITY = 1;
bool Jumping = false;
int brickX = 335;
int brickY = 400;
int levelX = 0;
int levelY = 0;

void createSprites();
void getMARIOcoordinates(int &, int &);

void DarkGDK(void)
{
	dbSetWindowTitle("Mario Fun");
	int marioX = MARIO_START_X;
	int marioY = MARIO_START_Y;
	int colorDepth = dbScreenDepth();

dbSyncOn();
	dbSyncRate(REFRESH_RATE);
	dbSetDisplayMode(640, 431, colorDepth);
	dbMaximizeWindow();
	dbHideMouse();

createSprites();

while ( LoopGDK() )
	{
		dbSprite(MARIO_SPRITE_NUMBER, marioX, marioY, MARIO_IMAGE_NUMBER);

getMARIOcoordinates(marioX, marioY);

if(levelX < 0)
		{
			levelX = 0;
			dbRotateSprite(2, 90);
			dbMoveSprite(2,1);
			dbRotateSprite(2,0);
		}

if(dbSpaceKey() && ! Jumping)
		{
			dbPlaySound(5);
			Jumping = true;
			ySpeed = 15;
		}
		if(Jumping)
		{
			ySpeed -= GRAVITY;
			marioY -= ySpeed;
			if(marioY > STARTY)
			{
				marioY = STARTY;
				Jumping = false;
			}
	        if(dbSpriteCollision(MARIO_SPRITE_NUMBER, 3))
			{
		        marioY = dbSpriteY(3) - dbSpriteHeight(2);
			    Jumping = false;
				dbPlaySound(6);
			}
			if(dbSpaceKey() && ! Jumping)
			{
				Jumping = true;
				ySpeed = 15;
			}

}
	    dbSync();
	}
	
	return;
}

void createSprites()
{
	dbSetImageColorKey(0, 0, 255);
	dbLoadImage("level1.png", BACK_IMAGE_NUMBER);
	dbCreateAnimatedSprite(MARIO_SPRITE_NUMBER, "smw.png", 3, 3, MARIO_IMAGE_NUMBER);
	dbLoadImage("BrickBlockBrown.bmp", 3);
	dbLoadSound("jump.wav", 5);
	dbLoadSound("1-UP.wav", 6);

dbSprite(BACK_SPRITE_NUMBER, levelX, levelY, BACK_IMAGE_NUMBER);

dbSprite(MARIO_SPRITE_NUMBER, MARIO_START_X, MARIO_START_Y, MARIO_IMAGE_NUMBER);
	dbSprite(3, brickX, brickY, 3);
	dbSetSpritePriority(2,1);
	dbSetSpritePriority(3,2);
}

void getMARIOcoordinates(int &x, int &y)
{
	if( dbLeftKey() ==1 )
	{
		dbPlaySprite(MARIO_SPRITE_NUMBER, 1, 3, 100);

dbRotateSprite(1, 90);
		dbMoveSprite(1, 1);
		dbRotateSprite(1,0);

dbRotateSprite(3, 90);
		dbMoveSprite(3,1);
		dbRotateSprite(3,0);

}
	if( dbRightKey()==1 )
	{
		dbPlaySprite(MARIO_SPRITE_NUMBER, 4, 6, 100);

dbRotateSprite(1, 270);
		dbMoveSprite(1,1);
		dbRotateSprite(1,0);

dbRotateSprite(3, 270);
		dbMoveSprite(3,1);
		dbRotateSprite(3,0);
	}
	//barrier around Map
	if (x < 0)
	{
		x++;
	}
	if (y <0)
	{
		y++;
	}
	if (y > 445)
	{
		y--;
	}
	if (x > 1007)
	{
		x--;
	}

}

+ Code Snippet



#include "DarkGDK.h"

const int REFRESH_RATE = 60;

const int BACK_IMAGE_NUMBER = 1;
const int BACK_SPRITE_NUMBER = 1;
const int MARIO_IMAGE_NUMBER = 2;
const int MARIO_SPRITE_NUMBER = 2;

const int MARIO_START_X = 400;
const int MARIO_START_Y = 405;

const int STARTY = 405;
const int STARTY2 = 385;
int xSpeed = 2;
int ySpeed = 0;
const int GRAVITY = 1;
bool Jumping = false;
int brickX = 335;
int brickY = 400;
int levelX = 0;
int levelY = 0;

void createSprites();
void getMARIOcoordinates(int &, int &);

void DarkGDK(void)
{
	dbSetWindowTitle("Mario Fun");
	int marioX = MARIO_START_X;
	int marioY = MARIO_START_Y;
	int colorDepth = dbScreenDepth();

	dbSyncOn();
	dbSyncRate(REFRESH_RATE);
	dbSetDisplayMode(640, 431, colorDepth);
	dbMaximizeWindow();
	dbHideMouse();

	createSprites();

	while ( LoopGDK() )
	{
		dbSprite(MARIO_SPRITE_NUMBER, marioX, marioY, MARIO_IMAGE_NUMBER);

		getMARIOcoordinates(marioX, marioY);

		if(levelX < 0)
		{
			levelX = 0;
			dbRotateSprite(2, 90);
			dbMoveSprite(2,1);
			dbRotateSprite(2,0);
		}

		if(dbSpaceKey() && ! Jumping)
		{
			dbPlaySound(5);
			Jumping = true;
			ySpeed = 15;
		}
		if(Jumping)
		{
			ySpeed -= GRAVITY;
			marioY -= ySpeed;
			if(marioY > STARTY)
			{
				marioY = STARTY;
				Jumping = false;
			}
	        if(dbSpriteCollision(MARIO_SPRITE_NUMBER, 3))
			{
		        marioY = dbSpriteY(3) - dbSpriteHeight(2);
			    Jumping = false;
				dbPlaySound(6);
			}
			if(dbSpaceKey() && ! Jumping)
			{
				Jumping = true;
				ySpeed = 15;
			}

		}
	    dbSync();
	}
	
	return;
}

void createSprites()
{
	dbSetImageColorKey(0, 0, 255);
	dbLoadImage("level1.png", BACK_IMAGE_NUMBER);
	dbCreateAnimatedSprite(MARIO_SPRITE_NUMBER, "smw.png", 3, 3, MARIO_IMAGE_NUMBER);
	dbLoadImage("BrickBlockBrown.bmp", 3);
	dbLoadSound("jump.wav", 5);
	dbLoadSound("1-UP.wav", 6);

	dbSprite(BACK_SPRITE_NUMBER, levelX, levelY, BACK_IMAGE_NUMBER);

	dbSprite(MARIO_SPRITE_NUMBER, MARIO_START_X, MARIO_START_Y, MARIO_IMAGE_NUMBER);
	dbSprite(3, brickX, brickY, 3);
	dbSetSpritePriority(2,1);
	dbSetSpritePriority(3,2);
}

void getMARIOcoordinates(int &x, int &y)
{
	if( dbLeftKey() ==1 )
	{
		dbPlaySprite(MARIO_SPRITE_NUMBER, 1, 3, 100);

		dbRotateSprite(1, 90);
		dbMoveSprite(1, 1);
		dbRotateSprite(1,0);

		dbRotateSprite(3, 90);
		dbMoveSprite(3,1);
		dbRotateSprite(3,0);

	}
	if( dbRightKey()==1 )
	{
		dbPlaySprite(MARIO_SPRITE_NUMBER, 4, 6, 100);

		dbRotateSprite(1, 270);
		dbMoveSprite(1,1);
		dbRotateSprite(1,0);

		dbRotateSprite(3, 270);
		dbMoveSprite(3,1);
		dbRotateSprite(3,0);
	}
	//barrier around Map
	if (x < 0)
	{
		x++;
	}
	if (y <0)
	{
		y++;
	}
	if (y > 445)
	{
		y--;
	}
	if (x > 1007)
	{
		x--;
	}

}

Hello,
I need help with being able to jump on a sprite and jumping off the same sprite. I can jump on the brick sprite just fine, but when I try to jump off of the brick, my mario sprite won't jump. Can anyone help me? My code is above.

w00t! ^_^

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Hawkblood

14

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Joined: 5th Dec 2009

Location:

Posted: 19th Sep 2011 22:45

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+ Code Snippet

	        if(dbSpriteCollision(MARIO_SPRITE_NUMBER, 3))
			{
		        marioY = dbSpriteY(3) - dbSpriteHeight(2);
			    Jumping = false;
				dbPlaySound(6);
			}

This part stops the jumping when there is a collision with the sprite.

+ Code Snippet

			if(dbSpaceKey() && ! Jumping)
			{
				Jumping = true;
				ySpeed = 15;
			}

I'm not sure what you are trying to do with this code. You have similar code above it.

Try this:

+ Code Snippet

		if(Jumping)
		{
			ySpeed -= GRAVITY;
			marioY -= ySpeed;
                        dbSprite(MARIO_SPRITE_NUMBER, marioX, marioY, MARIO_IMAGE_NUMBER);

			if(marioY > STARTY)
			{
				marioY = STARTY;
				Jumping = false;
			}
	               if(dbSpriteCollision(MARIO_SPRITE_NUMBER, 3)){
		        marioY = dbSpriteY(3) - dbSpriteHeight(2);
			    Jumping = false;
				dbPlaySound(6);
			}
		}

The fastest code is the code never written.

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CHADALAK1

13

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Joined: 16th Sep 2011

Location: Sioux City

Posted: 20th Sep 2011 04:35

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Thank you soo much!! just one simple code to make it work. i didnt know you had to recall the mario sprite again if it was on the brick. still yet a bit of trouble trying to make him go back to the ground if he walks off the brick, but hell yea been trying to figure out this jump problem for awhile -_-.

w00t! ^_^

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CHADALAK1

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Joined: 16th Sep 2011

Location: Sioux City

Posted: 21st Sep 2011 16:49

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do you know how to make mario stop air walking after he jumps on the brick??

w00t! ^_^

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Hawkblood

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Posted: 21st Sep 2011 18:52

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Make a bool.
bool OnBrick;
I'm assuming you are going to have more than one brick.... When you make a loop to check the bricks for collision, use the "OnBrick" like this:
psudocode:

+ Code Snippet

OnBrick=false;
loop all bricks
if on a brick{//handle the code for on a brick
OnBrick=true;
}
end loop all bricks
if (!OnBrick){//that means there are no brick collisions
make sure Mario is not on the ground either
if not on the ground, make him fall
}

The fastest code is the code never written.

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CHADALAK1

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Joined: 16th Sep 2011

Location: Sioux City

Posted: 22nd Sep 2011 00:38

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ok i got the bool idea, but the problem is i dont know what to put in the (!OnBrick) arguement :/ here's what I put

+ Code Snippet

		if(dbSpaceKey() && ! Jumping)
		{
			dbPlaySound(5);
			Jumping = true;
			ySpeed = 15;
		}
		if(Jumping)
		{
			ySpeed -= GRAVITY;
			marioY -= ySpeed;
			dbSprite(MARIO_SPRITE_NUMBER, marioX, marioY, MARIO_IMAGE_NUMBER);

			if(marioY > STARTY)
			{
				marioY = STARTY;
				Jumping = false;
			}
	        if(dbSpriteCollision(MARIO_SPRITE_NUMBER, 3))
			{
		        marioY = dbSpriteY(3) - dbSpriteHeight(2);
			    Jumping = false;
				dbPlaySound(6);
				OnBrick = true;
			}
	        if(dbSpriteCollision(MARIO_SPRITE_NUMBER, 4))
			{
		        marioY = dbSpriteY(4) - dbSpriteHeight(2);
			    Jumping = false;
				dbPlaySound(6);
				OnBrick = true;
			}
//help here :(
			if(!OnBrick)
			{
				Jumping = true;
			}

w00t! ^_^

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Hawkblood

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Posted: 22nd Sep 2011 20:41

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+ Code Snippet

			if(!OnBrick)
			{
				if(marioY > STARTY) Jumping = true;
			}

This should be outside your
if(Jumping){
......
}
The rest should take care of itself. The if (!OnBrick){...} will cause your Mario to fall when not on something.

The fastest code is the code never written.

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CHADALAK1

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Joined: 16th Sep 2011

Location: Sioux City

Posted: 23rd Sep 2011 02:48

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i tried the code you posted and it wont work. if you have

+ Code Snippet

if(!OnBrick)
{
	if(marioY > STARTY) Jumping = true;
}

it will make mario fall throught the floor ://
i also tried this

+ Code Snippet

		if(Jumping)
		{
			ySpeed -= GRAVITY;
			marioY -= ySpeed;
			dbSprite(MARIO_SPRITE_NUMBER, marioX, marioY, MARIO_IMAGE_NUMBER);

			if(marioY > STARTY)
			{
				marioY = STARTY;
				Jumping = false;
			}
	        if(dbSpriteCollision(MARIO_SPRITE_NUMBER, 3))
			{
		        marioY = dbSpriteY(3) - dbSpriteHeight(2);
			    Jumping = false;
				dbPlaySound(6);
				OnBrick = true;
			}
	        if(dbSpriteCollision(MARIO_SPRITE_NUMBER, 4))
			{
		        marioY = dbSpriteY(4) - dbSpriteHeight(2);
			    Jumping = false;
				dbPlaySound(6);
				OnBrick = true;
			}
		}
		if((marioY < STARTY) && !OnBrick)
		{
			marioY = STARTY;
			Jumping = true;
		}

i put the if(!OnBrick){..} outside the if(Jumping){..}. but it still doesnt work. would you want me to send my project to you to take a look for urself??

w00t! ^_^

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Hawkblood

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Posted: 23rd Sep 2011 05:56

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No need to send me all of it now. The problem with falling through the floor is that you are not testing the floor for collision. I assumed STARTY was your floor value. Also, I forget that sprites are using screen coordinates (duh). That means "if(marioY > STARTY) Jumping = true;" will be true as long as Mario is "below" STARTY. In 3D the Y+ is usually up.....

If you put if(!OnBrick){..} inside your if(Jumping){..} you will only make that test if you are jumping and will result in "air walk".

The fastest code is the code never written.

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Dark GDK / Dark GDK need help with jumping onto a sprite and jumping off the sprite. 2D side scroller.