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spritebatch affine draw command

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a dinosaur
2024-09-21 20:05:53 +10:00
parent b5b3e4cb16
commit 86316ee42c
2 changed files with 48 additions and 4 deletions
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42
Sources/Voxelotl/Renderer/SpriteBatch.swift
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@ -124,6 +124,20 @@ public struct SpriteBatch {
.texcoords(flip), color: color.linear)
}
public mutating func draw(_ texture: RendererTexture2D, position: SIMD2<Float>, transform: simd_float2x2) {
assert(self._active != .inactive, "call to SpriteBatch.draw without calling begin")
self.drawQuad(texture, .positions(position, transform, Size<Float>(texture.size)))
}
public mutating func draw(_ texture: RendererTexture2D, position: SIMD2<Float>, transform: simd_float2x2,
flip: Sprite.Flip = .none, color: Color<Float> = .white
) {
assert(self._active != .inactive, "call to SpriteBatch.draw without calling begin")
self.drawQuad(texture,
.positions(position, transform, Size<Float>(texture.size)),
.texcoords(flip), color: color.linear)
}
public mutating func draw(_ texture: RendererTexture2D, source: Rect<Float>, position: SIMD2<Float>) {
assert(self._active != .inactive, "call to SpriteBatch.draw without calling begin")
self.drawQuad(texture, .positions(position, source.size), .texcoords(texture.size, source))
@ -220,7 +234,25 @@ public struct SpriteBatch {
flip: Sprite.Flip = .none, color: Color<Float> = .white
) {
assert(self._active != .inactive, "call to SpriteBatch.draw without calling begin")
self.drawQuad(texture, .positions(transform, source.size), .texcoords(texture.size, source), color: color.linear)
self.drawQuad(texture,
.positions(transform, source.size),
.texcoords(texture.size, source, flip), color: color.linear)
}
public mutating func draw(_ texture: RendererTexture2D, source: Rect<Float>,
position: SIMD2<Float>, transform: simd_float2x2
) {
assert(self._active != .inactive, "call to SpriteBatch.draw without calling begin")
self.drawQuad(texture, .positions(position, transform, source.size), .texcoords(texture.size, source))
}
public mutating func draw(_ texture: RendererTexture2D, source: Rect<Float>,
position: SIMD2<Float>, transform: simd_float2x2, flip: Sprite.Flip = .none, color: Color<Float> = .white
) {
assert(self._active != .inactive, "call to SpriteBatch.draw without calling begin")
self.drawQuad(texture,
.positions(position, transform, source.size),
.texcoords(texture.size, source, flip), color: color.linear)
}
public mutating func draw(_ texture: RendererTexture2D, vertices: [VertexType]) {
@ -338,6 +370,14 @@ fileprivate extension SpriteBatch.Quad {
v11: (transform * .init(w, h, 1)).xy)
}
static func positions(_ position: SIMD2<Float>, _ transform: simd_float2x2, _ size: Size<Float>) -> Self {
.init(
v00: position + .init( 0, 0) * transform,
v01: position + .init(size.w, 0) * transform,
v10: position + .init( 0, size.h) * transform,
v11: position + .init(size.w, size.h) * transform)
}
static let texcoordsDefault = Self(
v00: SIMD2<Float>(0, 1), v01: SIMD2<Float>(1, 1),
v10: SIMD2<Float>(0, 0), v11: SIMD2<Float>(1, 0))