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Add shear transformation and transform object (issue #152).

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Add origin parameters to love.graphics.print.

New shear parameters kx,ky for:
- love.graphics.draw,
- love.graphics.drawq,
- love.graphics.print,
- SpriteBatch:add,
- SpriteBatch:addq.

Transform objects apply to:
- love.graphics.draw,
- love.graphics.drawq,
- love.graphics.print.
This commit is contained in:
vrld
2011-07-05 14:33:34 +02:00
parent ce5927379d
commit d420d68048
20 changed files with 214 additions and 55 deletions
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src/modules/graphics/opengl/ParticleSystem.cpp
+5 -6
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@@ -383,17 +383,16 @@ namespace opengl
return pLast == pEnd;
}
void ParticleSystem::draw(float x, float y, float angle, float sx, float sy, float ox, float oy) const
void ParticleSystem::draw(float x, float y, float angle, float sx, float sy, float ox, float oy, float kx, float ky) const
{
if(sprite == 0) return; // just in case of failure
glPushMatrix();
glPushAttrib(GL_CURRENT_BIT);
glTranslatef(x, y, 0);
glRotatef(LOVE_TODEG(angle), 0, 0, 1.0f);
glScalef(sx, sy, 1.0f);
glTranslatef( ox, oy, 0);
Matrix t;
t.setTransformation(x, y, angle, sx, sy, ox, oy, kx, ky);
glMultMatrixf((const GLfloat*)t.getElements());
particle * p = pStart;
while(p != pLast)
@@ -401,7 +400,7 @@ namespace opengl
glPushMatrix();
glColor4f(p->color.r, p->color.g, p->color.b, p->color.a);
sprite->draw(p->position[0], p->position[1], p->rotation, p->size, p->size, offsetX, offsetY);
sprite->draw(p->position[0], p->position[1], p->rotation, p->size, p->size, offsetX, offsetY, 0.0f, 0.0f);
glPopMatrix();
p++;