mirror of
https://github.com/lalbornoz/roar.git
synced 2024-11-09 17:26:36 +00:00
f9100dacb0
index.html, assets/{css/sally.css,js/{matrix,ui/controls}.js}: removes dead {rotate[d],pixels} code.
index.html: cleanup UI layout.
295 lines
7.1 KiB
JavaScript
295 lines
7.1 KiB
JavaScript
|
|
var blit = (function(){
|
|
var blit = {}
|
|
blit.and = blit.atop = function(A, B, x, y){
|
|
x = x || 0 ; y = y || 0
|
|
B.forEach(function(lex, u, v){
|
|
var cell = A.getCell(u+x, v+y)
|
|
if (cell && lex.opacity > 0) {
|
|
cell.assign(lex)
|
|
}
|
|
})
|
|
}
|
|
blit.or = blit.under = function(A, B, x, y){
|
|
x = x || 0 ; y = y || 0
|
|
B.forEach(function(lex, u, v){
|
|
var cell = A.getCell(u+x, v+y)
|
|
if (cell && cell.opacity == 0) {
|
|
cell.assign(lex)
|
|
}
|
|
})
|
|
}
|
|
// copy the region of A beginning at x,y into B
|
|
blit.copy_from = function(A, B, x, y){
|
|
x = x || 0 ; y = y || 0
|
|
B.forEach(function(lex, u, v){
|
|
var cell = A.getCell(u+x, v+y)
|
|
if (cell) {
|
|
lex.assign(cell)
|
|
}
|
|
})
|
|
}
|
|
blit.copy_toroidal_from = function(A, B, x, y){
|
|
x = x || 0 ; y = y || 0
|
|
B.forEach(function(lex, u, v){
|
|
var cell = A.get(u+x, v+y)
|
|
if (cell) {
|
|
lex.assign(cell)
|
|
}
|
|
})
|
|
}
|
|
blit.copy_to = function(A, B, x, y){
|
|
x = x || 0 ; y = y || 0
|
|
B.forEach(function(lex, u, v){
|
|
var cell = A.getCell(u+x, v+y)
|
|
if (cell) {
|
|
cell.assign(lex)
|
|
}
|
|
})
|
|
}
|
|
blit.invert = function(A, B, x, y){
|
|
x = x || 0 ; y = y || 0
|
|
B.forEach(function(lex, u, v){
|
|
var cell = A.getCell(u+x, v+y)
|
|
if (cell && lex.opacity > 0) {
|
|
cell.fg = get_inverse(cell.fg)
|
|
cell.bg = get_inverse(cell.bg)
|
|
}
|
|
})
|
|
}
|
|
var distance_rect = function(x, y, ratio){
|
|
return Math.sqrt((Math.pow(y * ratio, 2)) + Math.pow(x, 2))
|
|
}
|
|
var distance_square = function(x, y, ratio){
|
|
return Math.sqrt((Math.pow(y * ratio, 2)) + Math.pow(x * ratio, 2))
|
|
}
|
|
blit.circle = function(A, lex){
|
|
var hw = brush.w/2, hh = brush.h/2
|
|
var ratio, distance
|
|
|
|
if (brush.w === brush.h){
|
|
distance = distance_square
|
|
ratio = hw / hh * (brush.w === 3 || brush.w === 5 ? 1.2 : 1.05)
|
|
} else {
|
|
distance = distance_rect
|
|
ratio = hw / hh
|
|
}
|
|
|
|
A.forEach(function(lex,x,y) {
|
|
if (distance(x - hw + 0.5, y - hh + 0.5, ratio) > hw){
|
|
lex.clear()
|
|
}
|
|
})
|
|
}
|
|
blit.cross = function(A, lex){
|
|
A.forEach(function(lex,x,y) {
|
|
if ((x+y)%2) {
|
|
lex.clear()
|
|
}
|
|
})
|
|
}
|
|
blit.inverted_cross = function(A, lex){
|
|
// 1x1 brush should still draw something
|
|
if (A.w == 1 && A.h == 1) {
|
|
return
|
|
}
|
|
A.forEach(function(lex,x,y) {
|
|
if (!((x+y)%2)) {
|
|
lex.clear()
|
|
}
|
|
})
|
|
}
|
|
blit.square = function(A, lex){
|
|
// i.e. no transparency
|
|
}
|
|
return blit
|
|
})()
|
|
|
|
var draw = (function(){
|
|
|
|
var last_point = [0,0]
|
|
|
|
function down (e, lex, point) {
|
|
var w = canvas.w, h = canvas.h
|
|
erasing = (e.which == "3" || e.ctrlKey)
|
|
changed = true
|
|
if (e.shiftKey) {
|
|
line (lex, last_point, point, erasing)
|
|
}
|
|
else {
|
|
stamp (canvas, brush, point[0], point[1], erasing)
|
|
}
|
|
last_point[0] = point[0]
|
|
last_point[1] = point[1]
|
|
}
|
|
|
|
function set_last_point (e, point) {
|
|
last_point[0] = point[0]
|
|
last_point[1] = point[1]
|
|
}
|
|
|
|
function move (e, lex, point) {
|
|
var w = canvas.w, h = canvas.h
|
|
line(lex, last_point, point, erasing)
|
|
last_point[0] = point[0]
|
|
last_point[1] = point[1]
|
|
}
|
|
|
|
function move_toroidal (e, lex, point) {
|
|
var w = canvas.w, h = canvas.h
|
|
var src_x_quantile = quantile( last_point[0], w )
|
|
var src_y_quantile = quantile( last_point[1], h )
|
|
var dst_x_quantile = quantile( point[0], w )
|
|
var dst_y_quantile = quantile( point[1], h )
|
|
var src_x_mod = mod( last_point[0], w )
|
|
var src_y_mod = mod( last_point[1], h )
|
|
var dst_x_mod = mod( point[0], w )
|
|
var dst_y_mod = mod( point[1], h )
|
|
// if we've moved across the edge of the board, draw two lines
|
|
if (src_x_quantile != dst_x_quantile || src_y_quantile != dst_y_quantile) {
|
|
var xa, ya
|
|
if (src_x_quantile < dst_x_quantile) {
|
|
xa = [
|
|
[src_x_mod, dst_x_mod + w],
|
|
[src_x_mod-w, dst_x_mod],
|
|
]
|
|
}
|
|
else if (src_x_quantile == dst_x_quantile) {
|
|
xa = [
|
|
[src_x_mod, dst_x_mod],
|
|
[src_x_mod, dst_x_mod],
|
|
]
|
|
}
|
|
else {
|
|
xa = [
|
|
[src_x_mod, dst_x_mod-w],
|
|
[src_x_mod+w, dst_x_mod],
|
|
]
|
|
}
|
|
|
|
if (src_y_quantile < dst_y_quantile) {
|
|
ya = [
|
|
[src_y_mod, dst_y_mod + h],
|
|
[src_y_mod-h, dst_y_mod],
|
|
]
|
|
}
|
|
else if (src_y_quantile == dst_y_quantile) {
|
|
ya = [
|
|
[src_y_mod, dst_y_mod],
|
|
[src_y_mod, dst_y_mod],
|
|
]
|
|
}
|
|
else {
|
|
ya = [
|
|
[src_y_mod, dst_y_mod-h],
|
|
[src_y_mod+h, dst_y_mod],
|
|
]
|
|
}
|
|
line(lex, [ xa[0][0], ya[0][0] ], [ xa[0][1], ya[0][1] ], erasing)
|
|
line(lex, [ xa[1][0], ya[1][0] ], [ xa[1][1], ya[1][1] ], erasing)
|
|
}
|
|
else {
|
|
var x_a = mod( last_point[0], w )
|
|
var y_a = mod( last_point[1], h )
|
|
var x_b = mod( point[0], w )
|
|
var y_b = mod( point[1], h )
|
|
var last_point_mod = [x_b, y_b], point_mod = [x_a, y_a]
|
|
line(lex, last_point_mod, point_mod, erasing)
|
|
}
|
|
last_point[0] = point[0]
|
|
last_point[1] = point[1]
|
|
// y = point.y
|
|
}
|
|
|
|
function point (lex, x, y, erasing) {
|
|
stamp (canvas, brush, x, y, erasing)
|
|
}
|
|
|
|
function line (lex, a, b, erasing) {
|
|
var len = dist(a[0], a[1], b[0], b[1])
|
|
var bw = 1
|
|
var x, y, i;
|
|
for (var i = 0; i <= len; i += bw) {
|
|
x = lerp(i / len, a[0], b[0])
|
|
y = lerp(i / len, a[1], b[1])
|
|
stamp (canvas, brush, x, y, erasing)
|
|
}
|
|
}
|
|
|
|
function stamp (canvas, brush, x, y, erasing) {
|
|
var hh = brush.w/2|0
|
|
brush.forEach(function(lex, s, t){
|
|
s = round( s + x-hh )
|
|
t = round( t + y-hh )
|
|
if (s >= 0 && s < canvas.w && t >= 0 && t < canvas.h) {
|
|
if (lex.opacity === 0 && lex.char === ' ') return;
|
|
var aa = canvas.aa[t][s]
|
|
undo.save_lex(s, t, aa)
|
|
if (erasing) {
|
|
aa.erase(lex)
|
|
}
|
|
else {
|
|
aa.stamp(lex, brush)
|
|
}
|
|
}
|
|
})
|
|
}
|
|
|
|
function fill (lex, x, y) {
|
|
var q = [ [x,y] ]
|
|
var aa = canvas.aa
|
|
var target = aa[y][x].clone()
|
|
var n, w = 0, e = 0, j = 0
|
|
var kk = 0
|
|
// gets into a weird infinite loop if we don't break here.. :\
|
|
if (target.eq(lex)) { return }
|
|
LOOP: while (q.length) {
|
|
n = q.shift()
|
|
if (aa[n[1]][n[0]].ne(target)) {
|
|
continue LOOP
|
|
}
|
|
w = e = n[0]
|
|
j = n[1]
|
|
WEST: while (w > 0) {
|
|
if (aa[j][w-1].eq(target)) {
|
|
w = w-1
|
|
}
|
|
else {
|
|
break WEST
|
|
}
|
|
}
|
|
EAST: while (e < canvas.w-1) {
|
|
if (aa[j][e+1].eq(target)) {
|
|
e = e+1
|
|
}
|
|
else {
|
|
break EAST
|
|
}
|
|
}
|
|
for (var i = w; i <= e; i++) {
|
|
undo.save_lex(i, j, aa[j][i])
|
|
aa[j][i].assign(lex)
|
|
if (j > 0 && aa[j-1][i].eq(target)) {
|
|
q.push([ i, j-1 ])
|
|
}
|
|
if (j < canvas.h-1 && aa[j+1][i].eq(target)) {
|
|
q.push([ i, j+1 ])
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
var draw = {}
|
|
draw.down = down
|
|
draw.set_last_point = set_last_point
|
|
draw.move = move
|
|
draw.move_toroidal = move_toroidal
|
|
draw.stamp = stamp
|
|
draw.line = line
|
|
draw.point = point
|
|
draw.fill = fill
|
|
return draw
|
|
|
|
})()
|
|
|