Well, I need a function that makes a tetr shape rotate over its center

Question

angela210793 · Answer

where do u get these???????????????? O.o

anonymous · Answer

just trying to program a tetr and i need this function ^^

anonymous · Answer

it should rotate when u pick right or left arrow keys,

anonymous · Answer

i think that i should make an rectangle and then put the shape into of it and shapes and rectangels x and y should be same. then i should make the rectangle turn over its square

anonymous · Answer

and i think that i can allot this rectangle to rectangles to make the collapsion test
and to make this shape really rotate :)

anonymous · Answer

WELL HERE ITS THE THINg i think

anonymous · Answer

just look at the thing i am thinkining on it i mean rotate.jpg

amistre64 · Answer

well, rotation of an image is tricky; but you can cheat by having an image of it in each position and then flipping thru the images

amistre64 · Answer

like a movie screen

amistre64 · Answer

if (keypress == rotateleft) {imageN = imageN+1}

anonymous · Answer

aha!

anonymous · Answer

but whats N means?

amistre64 · Answer

N just means whatever number it is; you get the next image i the sequence

anonymous · Answer

hmm i don2T got it sarry :(

amistre64 · Answer

image1 = up;  image2 = left;  image3 = down ; image4 = right

display image3

when rotate left;  display image2

when rotate left; display image1

when rotate 3 times to the right; display image2, then image3, then image4

anonymous · Answer

ahh
now i got it

anonymous · Answer

so images change splaces with eacht other
kk

anonymous · Answer

its a CHEAT!! :(

amistre64 · Answer

if you are moving sections of defined areas; then have an array built up if area locators

amistre64 · Answer

its an effect lol

anonymous · Answer

yea :D
xd

anonymous · Answer

but its the easier way of it
but without this trick how can we rotate this?

amistre64 · Answer

similar method to the cannon rotating; converting polar coordinates into cartesians

amistre64 · Answer

but unless you have the computational power to keep track of all the points in an array, it gets messy

anonymous · Answer

but the center of the shape is orign this time ye?

amistre64 · Answer

yes

anonymous · Answer

kk

anonymous · Answer

thank you
and i have to leave now bb