void SpriteCache::add (Texture::ptr texture, float x, float y, int srcX, int srcY, int srcWidth, int srcHeight) {
float invTexWidth = 1.0f / texture->getWidth();
float invTexHeight = 1.0f / texture->getHeight();
float u = srcX * invTexWidth;
float v = (srcY + srcHeight) * invTexHeight;
float u2 = (srcX + srcWidth) * invTexWidth;
float v2 = srcY * invTexHeight;
float fx2 = x + srcWidth;
float fy2 = y + srcHeight;
tempVertices[0] = x;
tempVertices[1] = y;
tempVertices[2] = color;
tempVertices[3] = u;
tempVertices[4] = v;
tempVertices[5] = x;
tempVertices[6] = fy2;
tempVertices[7] = color;
tempVertices[8] = u;
tempVertices[9] = v2;
tempVertices[10] = fx2;
tempVertices[11] = fy2;
tempVertices[12] = color;
tempVertices[13] = u2;
tempVertices[14] = v2;
if (mesh->getNumIndices() > 0) {
tempVertices[15] = fx2;
tempVertices[16] = y;
tempVertices[17] = color;
tempVertices[18] = u2;
tempVertices[19] = v;
add(texture, tempVertices, 30, 0, 20);
} else {
tempVertices[15] = fx2;
tempVertices[16] = fy2;
tempVertices[17] = color;
tempVertices[18] = u2;
tempVertices[19] = v2;
tempVertices[20] = fx2;
tempVertices[21] = y;
tempVertices[22] = color;
tempVertices[23] = u2;
tempVertices[24] = v;
tempVertices[25] = x;
tempVertices[26] = y;
tempVertices[27] = color;
tempVertices[28] = u;
tempVertices[29] = v;
add(texture, tempVertices, 30, 0, 30);
}
}
void SpriteCache::add ( Texture::ptr texture,float x,float y ) {
float fx2 = x + texture->getWidth();
float fy2 = y + texture->getHeight();
tempVertices[0] = x;
tempVertices[1] = y;
tempVertices[2] = color;
tempVertices[3] = 0;
tempVertices[4] = 1;
tempVertices[5] = x;
tempVertices[6] = fy2;
tempVertices[7] = color;
tempVertices[8] = 0;
tempVertices[9] = 0;
tempVertices[10] = fx2;
tempVertices[11] = fy2;
tempVertices[12] = color;
tempVertices[13] = 1;
tempVertices[14] = 0;
if ( mesh->getNumIndices() > 0 ) {
tempVertices[15] = fx2;
tempVertices[16] = y;
tempVertices[17] = color;
tempVertices[18] = 1;
tempVertices[19] = 1;
add ( texture, tempVertices, 30, 0, 20 );
} else {
tempVertices[15] = fx2;
tempVertices[16] = fy2;
tempVertices[17] = color;
tempVertices[18] = 1;
tempVertices[19] = 0;
tempVertices[20] = fx2;
tempVertices[21] = y;
tempVertices[22] = color;
tempVertices[23] = 1;
tempVertices[24] = 1;
tempVertices[25] = x;
tempVertices[26] = y;
tempVertices[27] = color;
tempVertices[28] = 0;
tempVertices[29] = 1;
add ( texture, tempVertices, 30, 0, 30 );
}
}
void SpriteBatch::draw (const TextureRegion& region,float x,float y,float width,float height) {
if (!drawing)
throw std::runtime_error("SpriteBatch.begin must be called before draw.");
Texture::ptr texture = region.getTexture();
if (texture.get() != lastTexture) {
renderMesh();
lastTexture = texture.get();
invTexWidth = 1.0f / texture->getWidth();
invTexHeight = 1.0f / texture->getHeight();
} else if (idx == verticesSize) //
renderMesh();
float fx2 = x + width;
float fy2 = y + height;
float u = region.u;
float v = region.v2;
float u2 = region.u2;
float v2 = region.v;
utils::float_buffer& buffer = mesh->getVerticesBuffer();
buffer.limit(buffer.position() + 20);
vertices[idx++] = x;
vertices[idx++] = y;
vertices[idx++] = color;
vertices[idx++] = u;
vertices[idx++] = v;
vertices[idx++] = x;
vertices[idx++] = fy2;
vertices[idx++] = color;
vertices[idx++] = u;
vertices[idx++] = v2;
vertices[idx++] = fx2;
vertices[idx++] = fy2;
vertices[idx++] = color;
vertices[idx++] = u2;
vertices[idx++] = v2;
vertices[idx++] = fx2;
vertices[idx++] = y;
vertices[idx++] = color;
vertices[idx++] = u2;
vertices[idx++] = v;
}
void SpriteBatch::draw (const TextureRegion& region,float x,float y,float originX,float originY,float width,float height,float scaleX,float scaleY,float rotation,bool clockwise) {
if (!drawing)
throw std::runtime_error("SpriteBatch.begin must be called before draw.");
Texture::ptr texture = region.getTexture();
if (texture.get() != lastTexture) {
renderMesh();
lastTexture = texture.get();
invTexWidth = 1.0f / texture->getWidth();
invTexHeight = 1.0f / texture->getHeight();
} else if (idx == verticesSize) {
renderMesh();
}
// bottom left and top right corner points relative to origin
float worldOriginX = x + originX;
float worldOriginY = y + originY;
float fx = -originX;
float fy = -originY;
float fx2 = width - originX;
float fy2 = height - originY;
// scale
if (scaleX != 1 || scaleY != 1) {
fx *= scaleX;
fy *= scaleY;
fx2 *= scaleX;
fy2 *= scaleY;
}
// construct corner points, start from top left and go counter clockwise
float p1x = fx;
float p1y = fy;
float p2x = fx;
float p2y = fy2;
float p3x = fx2;
float p3y = fy2;
float p4x = fx2;
float p4y = fy;
float x1;
float y1;
float x2;
float y2;
float x3;
float y3;
float x4;
float y4;
// rotate
if (rotation != 0) {
float cos = math::utils::cosDeg(rotation);
float sin = math::utils::sinDeg(rotation);
x1 = cos * p1x - sin * p1y;
y1 = sin * p1x + cos * p1y;
x2 = cos * p2x - sin * p2y;
y2 = sin * p2x + cos * p2y;
x3 = cos * p3x - sin * p3y;
y3 = sin * p3x + cos * p3y;
x4 = x1 + (x3 - x2);
y4 = y3 - (y2 - y1);
} else {
x1 = p1x;
y1 = p1y;
x2 = p2x;
y2 = p2y;
x3 = p3x;
y3 = p3y;
x4 = p4x;
y4 = p4y;
}
x1 += worldOriginX;
y1 += worldOriginY;
x2 += worldOriginX;
y2 += worldOriginY;
x3 += worldOriginX;
y3 += worldOriginY;
x4 += worldOriginX;
y4 += worldOriginY;
float u1, v1, u2, v2, u3, v3, u4, v4;
if (clockwise) {
u1 = region.u2;
v1 = region.v2;
u2 = region.u;
v2 = region.v2;
u3 = region.u;
v3 = region.v;
u4 = region.u2;
v4 = region.v;
} else {
u1 = region.u;
v1 = region.v;
u2 = region.u2;
v2 = region.v;
u3 = region.u2;
v3 = region.v2;
u4 = region.u;
v4 = region.v2;
}
vertices[idx++] = x1;
vertices[idx++] = y1;
vertices[idx++] = color;
vertices[idx++] = u1;
vertices[idx++] = v1;
vertices[idx++] = x2;
vertices[idx++] = y2;
vertices[idx++] = color;
vertices[idx++] = u2;
vertices[idx++] = v2;
vertices[idx++] = x3;
vertices[idx++] = y3;
vertices[idx++] = color;
vertices[idx++] = u3;
vertices[idx++] = v3;
vertices[idx++] = x4;
vertices[idx++] = y4;
vertices[idx++] = color;
vertices[idx++] = u4;
vertices[idx++] = v4;
}
void SpriteCache::add ( Texture::ptr texture,float x,float y,float originX,float originY,float width,float height,float scaleX,float scaleY,float rotation,int srcX,int srcY,int srcWidth,int srcHeight,bool flipX,bool flipY ) {
// bottom left and top right corner points relative to origin
float worldOriginX = x + originX;
float worldOriginY = y + originY;
float fx = -originX;
float fy = -originY;
float fx2 = width - originX;
float fy2 = height - originY;
// scale
if ( scaleX != 1 || scaleY != 1 ) {
fx *= scaleX;
fy *= scaleY;
fx2 *= scaleX;
fy2 *= scaleY;
}
// construct corner points, start from top left and go counter clockwise
float p1x = fx;
float p1y = fy;
float p2x = fx;
float p2y = fy2;
float p3x = fx2;
float p3y = fy2;
float p4x = fx2;
float p4y = fy;
float x1;
float y1;
float x2;
float y2;
float x3;
float y3;
float x4;
float y4;
// rotate
if ( rotation != 0 ) {
float cos = cosDeg ( rotation );
float sin = sinDeg ( rotation );
x1 = cos * p1x - sin * p1y;
y1 = sin * p1x + cos * p1y;
x2 = cos * p2x - sin * p2y;
y2 = sin * p2x + cos * p2y;
x3 = cos * p3x - sin * p3y;
y3 = sin * p3x + cos * p3y;
x4 = x1 + ( x3 - x2 );
y4 = y3 - ( y2 - y1 );
} else {
x1 = p1x;
y1 = p1y;
x2 = p2x;
y2 = p2y;
x3 = p3x;
y3 = p3y;
x4 = p4x;
y4 = p4y;
}
x1 += worldOriginX;
y1 += worldOriginY;
x2 += worldOriginX;
y2 += worldOriginY;
x3 += worldOriginX;
y3 += worldOriginY;
x4 += worldOriginX;
y4 += worldOriginY;
float invTexWidth = 1.0f / texture->getWidth();
float invTexHeight = 1.0f / texture->getHeight();
float u = srcX * invTexWidth;
float v = ( srcY + srcHeight ) * invTexHeight;
float u2 = ( srcX + srcWidth ) * invTexWidth;
float v2 = srcY * invTexHeight;
if ( flipX ) {
float tmp = u;
u = u2;
u2 = tmp;
}
if ( flipY ) {
float tmp = v;
v = v2;
v2 = tmp;
}
tempVertices[0] = x1;
tempVertices[1] = y1;
tempVertices[2] = color;
tempVertices[3] = u;
tempVertices[4] = v;
tempVertices[5] = x2;
tempVertices[6] = y2;
tempVertices[7] = color;
tempVertices[8] = u;
tempVertices[9] = v2;
tempVertices[10] = x3;
tempVertices[11] = y3;
tempVertices[12] = color;
tempVertices[13] = u2;
tempVertices[14] = v2;
if ( mesh->getNumIndices() > 0 ) {
tempVertices[15] = x4;
tempVertices[16] = y4;
tempVertices[17] = color;
tempVertices[18] = u2;
tempVertices[19] = v;
add ( texture, tempVertices, 30, 0, 20 );
} else {
tempVertices[15] = x3;
tempVertices[16] = y3;
tempVertices[17] = color;
tempVertices[18] = u2;
tempVertices[19] = v2;
tempVertices[20] = x4;
tempVertices[21] = y4;
tempVertices[22] = color;
tempVertices[23] = u2;
tempVertices[24] = v;
tempVertices[25] = x1;
tempVertices[26] = y1;
tempVertices[27] = color;
tempVertices[28] = u;
tempVertices[29] = v;
add ( texture, tempVertices, 30, 0, 30 );
}
}
Sprite::Sprite(const Texture::ptr& texture) :
color(1,1,1,1)
{
initialize(texture, 0, 0, texture->getWidth(), texture->getHeight());
}