107 lines
2.4 KiB
Plaintext
107 lines
2.4 KiB
Plaintext
// sprite.cm - Sprite node factory
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//
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// Returns a function that creates sprite instances via meme()
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var sprite = {
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type: 'sprite',
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pos: null,
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layer: 0,
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image: null,
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width: 1,
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height: 1,
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anchor_x: 0,
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anchor_y: 0,
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scale_x: 1,
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scale_y: 1,
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color: null,
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uv_rect: null,
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slice: null,
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tile: null,
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material: null,
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animation: null,
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frame: 0,
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opacity: 1,
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// Dirty tracking
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dirty: 7, // DIRTY.ALL
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// Cached geometry (for retained mode)
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geom_cache: null,
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// Setters that mark dirty
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set_pos: function(x, y) {
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if (!this.pos) this.pos = {x: 0, y: 0}
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if (this.pos.x == x && this.pos.y == y) return this
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this.pos.x = x
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this.pos.y = y
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this.dirty |= 1 // TRANSFORM
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return this
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},
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set_image: function(img) {
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if (this.image == img) return this
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this.image = img
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this.dirty |= 2 // CONTENT
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return this
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},
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set_size: function(w, h) {
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if (this.width == w && this.height == h) return this
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this.width = w
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this.height = h
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this.dirty |= 2 // CONTENT
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return this
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},
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set_anchor: function(x, y) {
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if (this.anchor_x == x && this.anchor_y == y) return this
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this.anchor_x = x
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this.anchor_y = y
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this.dirty |= 1 // TRANSFORM
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return this
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},
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set_color: function(r, g, b, a) {
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if (!this.color) this.color = {r: 1, g: 1, b: 1, a: 1}
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if (this.color.r == r && this.color.g == g && this.color.b == b && this.color.a == a) return this
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this.color.r = r
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this.color.g = g
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this.color.b = b
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this.color.a = a
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this.dirty |= 2 // CONTENT
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return this
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},
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set_opacity: function(o) {
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if (this.opacity == o) return this
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this.opacity = o
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this.dirty |= 2 // CONTENT
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return this
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}
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}
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// Factory function
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return function(props) {
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var s = meme(sprite)
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s.pos = {x: 0, y: 0}
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s.color = {r: 1, g: 1, b: 1, a: 1}
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s.dirty = 7
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if (props) {
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for (var k in props) {
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if (k == 'pos' && props.pos) {
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s.pos.x = props.pos.x || 0
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s.pos.y = props.pos.y || 0
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} else if (k == 'color' && props.color) {
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s.color.r = props.color.r != null ? props.color.r : 1
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s.color.g = props.color.g != null ? props.color.g : 1
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s.color.b = props.color.b != null ? props.color.b : 1
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s.color.a = props.color.a != null ? props.color.a : 1
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} else {
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s[k] = props[k]
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}
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}
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}
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return s
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} |