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Support proper scaling and other MATRIX operations

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Jaby
2024-04-23 23:04:17 +02:00
committed by Jaby
parent 91addb8a50
commit a5e5a42611
5 changed files with 133 additions and 32 deletions
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42
examples/PoolBox/application/src/Overlay/GTETest/include/GTE_Sprite.hpp
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@@ -3,37 +3,41 @@
#include <PSX/GPU/gpu.hpp>
#include <PSX/GTE/gte.hpp>
#include <stdio.hpp>
namespace GTETest {
using namespace JabyEngine;
struct GTE_Sprite {
GPU::AreaI16 area;
GPU::PositionI16 pivot;
deg_t angle;
GPU::POLY_FT4 display;
GPU::AreaI16 area;
GPU::PositionI16 pivot;
deg_t angle;
gte_float scale;
GPU::POLY_FT4::Linked display;
static constexpr GTE_Sprite create(const GPU::POLY_FT4& base) {
static constexpr GTE_Sprite create(const GPU::POLY_FT4::Linked& base) {
const auto rect_size = base->get_rect_size();
return GTE_Sprite{
.area = GPU::AreaI16::create(base.get_rect_pos(), base.get_rect_size()),
.pivot = GPU::PositionI16::create(base.get_rect_size().width/2, base.get_rect_size().height/2),
.area = GPU::AreaI16::create(base->get_rect_pos(), rect_size),
.pivot = GPU::PositionI16::create(rect_size.width/2, rect_size.height/2),
.angle = 0.0_deg,
.scale = 1.0_gf,
.display = base
};
}
void apply(const GTE::MATRIX& gbl_matrix) {
auto matrix = GTE::MATRIX::translated(-this->pivot.x, -this->pivot.y, 0).comp(
GTE::MATRIX::rotated(0.0_deg, 0.0_deg, this->angle)
).comp(
GTE::MATRIX::translated(this->pivot.x, this->pivot.y, 0)
).comp(
GTE::MATRIX::translated(this->area.position.x, this->area.position.y)
).comp(gbl_matrix);
void apply(const GTE::MATRIX& gbl_matrix = GTE::MATRIX::identity()) {
const auto matrix =
GTE::MATRIX::translated(-this->pivot.x, -this->pivot.y, 0)
.rotate(0.0_deg, 0.0_deg, this->angle)
.scale(this->scale, this->scale)
.translate(this->area.position.x + this->pivot.x, this->area.position.y + this->pivot.y, 0)
.comp(gbl_matrix);
this->display.vertex0 = matrix.apply_to(GPU::Vertex::create(0, 0));
this->display.vertex1 = matrix.apply_to(GPU::Vertex::create(this->area.size.width, 0));
this->display.vertex2 = matrix.apply_to(GPU::Vertex::create(0, this->area.size.height));
this->display.vertex3 = matrix.apply_to(GPU::Vertex::create(this->area.size.width, this->area.size.height));
this->display->vertex0 = matrix.apply_to(GPU::Vertex::create(0, 0));
this->display->vertex1 = matrix.apply_to(GPU::Vertex::create(this->area.size.width, 0));
this->display->vertex2 = matrix.apply_to(GPU::Vertex::create(0, this->area.size.height));
this->display->vertex3 = matrix.apply_to(GPU::Vertex::create(this->area.size.width, this->area.size.height));
}
void render() {