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-rw-r--r--src/crepe/api/Animator.cpp5
-rw-r--r--src/crepe/api/Sprite.h10
-rw-r--r--src/crepe/facade/SDLContext.cpp25
-rw-r--r--src/crepe/facade/SDLContext.h6
-rw-r--r--src/crepe/system/RenderSystem.cpp4
5 files changed, 30 insertions, 20 deletions
diff --git a/src/crepe/api/Animator.cpp b/src/crepe/api/Animator.cpp
index d206428..178b165 100644
--- a/src/crepe/api/Animator.cpp
+++ b/src/crepe/api/Animator.cpp
@@ -18,7 +18,10 @@ Animator::Animator(game_object_id_t id, Sprite & ss, int row, int col, int col_a
animator_rect.h /= col;
animator_rect.w /= row;
animator_rect.x = 0;
- animator_rect.y = (col_animator - 1) * animator_rect.h;
+ animator_rect.y = col_animator * animator_rect.h;
this->active = false;
+
+ // need to do this for to get the aspect ratio for a single clipping in the spritesheet
+ this->spritesheet.aspect_ratio = (double)animator_rect.w / (double)animator_rect.h;
}
Animator::~Animator() { dbg_trace(); }
diff --git a/src/crepe/api/Sprite.h b/src/crepe/api/Sprite.h
index 66599c9..89f9121 100644
--- a/src/crepe/api/Sprite.h
+++ b/src/crepe/api/Sprite.h
@@ -68,7 +68,13 @@ public:
//! height in world units
int height = 0;
- const double aspect_ratio;
+ /**
+ * \aspect_ratio ratio of the img so that scaling will not become weird
+ *
+ * cannot be const because if Animator component is addded then ratio becomes scuffed and
+ * does it need to be calculated again in the Animator
+ */
+ double aspect_ratio;
public:
/**
@@ -90,7 +96,7 @@ private:
friend class AnimatorSystem;
//! Render area of the sprite this will also be adjusted by the AnimatorSystem if an Animator
- // object is present in GameObject
+ // object is present in GameObject. this is in sprite pixels
Rect sprite_rect;
};
diff --git a/src/crepe/facade/SDLContext.cpp b/src/crepe/facade/SDLContext.cpp
index f49539c..29a8195 100644
--- a/src/crepe/facade/SDLContext.cpp
+++ b/src/crepe/facade/SDLContext.cpp
@@ -5,11 +5,9 @@
#include <SDL2/SDL_render.h>
#include <SDL2/SDL_surface.h>
#include <SDL2/SDL_video.h>
-#include <algorithm>
#include <cmath>
#include <cstddef>
#include <functional>
-#include <iostream>
#include <memory>
#include <stdexcept>
@@ -109,21 +107,24 @@ SDL_Rect SDLContext::get_src_rect(const Sprite & sprite) const {
.h = sprite.sprite_rect.h,
};
}
-SDL_Rect SDLContext::get_dst_rect(const Sprite & sprite, const Vector2 & pos,
- const Vector2 & scale) const {
+SDL_Rect SDLContext::get_dst_rect(const Sprite & sprite, const Vector2 & pos, const Vector2 & cam_pos,
+ const double & img_scale, const Vector2 & cam_scale) const {
int pixel_width, pixel_height;
if (sprite.sprite_rect.w > sprite.sprite_rect.h) {
- pixel_width = static_cast<int>(sprite.width * scale.x);
+ pixel_width = static_cast<int>(sprite.width * cam_scale.x);
pixel_height = static_cast<int>(pixel_width / sprite.aspect_ratio);
} else {
- pixel_height = static_cast<int>(sprite.height * scale.y);
+ pixel_height = static_cast<int>(sprite.height * cam_scale.y);
pixel_width = static_cast<int>(pixel_height * sprite.aspect_ratio);
}
- int pixel_x = static_cast<int>((pos.x - pixel_width / 2));
- int pixel_y = static_cast<int>((pos.y - pixel_height / 2));
+ pixel_width *= img_scale;
+ pixel_height *= img_scale;
+
+ int pixel_x = static_cast<int>((pos.x - cam_pos.x - pixel_width / 2));
+ int pixel_y = static_cast<int>((pos.y - cam_pos.y - pixel_height / 2));
return SDL_Rect{
.x = pixel_x,
@@ -134,27 +135,27 @@ SDL_Rect SDLContext::get_dst_rect(const Sprite & sprite, const Vector2 & pos,
}
void SDLContext::draw_particle(const Sprite & sprite, const Vector2 & pos,
- const double & angle, const Vector2 & scale) {
+ const double & angle, const Vector2 & cam_pos, const double & img_scale, const Vector2 & cam_scale) {
SDL_RendererFlip render_flip
= (SDL_RendererFlip) ((SDL_FLIP_HORIZONTAL * sprite.flip.flip_x)
| (SDL_FLIP_VERTICAL * sprite.flip.flip_y));
SDL_Rect srcrect = this->get_src_rect(sprite);
- SDL_Rect dstrect = this->get_dst_rect(sprite, pos, scale);
+ SDL_Rect dstrect = this->get_dst_rect(sprite, pos, cam_pos, img_scale, cam_scale);
SDL_RenderCopyEx(this->game_renderer.get(), sprite.sprite_image->texture.get(), &srcrect,
&dstrect, angle, NULL, render_flip);
}
-void SDLContext::draw(const Sprite & sprite, const Transform & transform, const Vector2 & scale) {
+void SDLContext::draw(const Sprite & sprite, const Transform & transform, const Vector2 & cam_pos, const Vector2 & cam_scale) {
SDL_RendererFlip render_flip
= (SDL_RendererFlip) ((SDL_FLIP_HORIZONTAL * sprite.flip.flip_x)
| (SDL_FLIP_VERTICAL * sprite.flip.flip_y));
SDL_Rect srcrect = this->get_src_rect(sprite);
- SDL_Rect dstrect = this->get_dst_rect(sprite, transform.position, scale);
+ SDL_Rect dstrect = this->get_dst_rect(sprite, transform.position, cam_pos, transform.scale, cam_scale);
SDL_RenderCopyEx(this->game_renderer.get(), sprite.sprite_image->texture.get(), &srcrect,
&dstrect, transform.rotation, NULL, render_flip);
diff --git a/src/crepe/facade/SDLContext.h b/src/crepe/facade/SDLContext.h
index 68d1630..04c60cc 100644
--- a/src/crepe/facade/SDLContext.h
+++ b/src/crepe/facade/SDLContext.h
@@ -118,9 +118,9 @@ private:
* \param transform Reference to the Transform for positioning.
* \param camera Reference to the Camera for view adjustments.
*/
- void draw(const Sprite & sprite, const Transform & transform, const Vector2 & scale);
+ void draw(const Sprite & sprite, const Transform & transform, const Vector2 & cam_pos, const Vector2 & cam_scale);
- void draw_particle(const Sprite & sprite, const Vector2 & pos, const double & angle, const Vector2 & scale);
+ void draw_particle(const Sprite & sprite, const Vector2 & pos, const double & angle, const Vector2 & cam_pos, const double & img_scale, const Vector2 & cam_scale);
//! Clears the screen, preparing for a new frame.
void clear_screen();
@@ -152,7 +152,7 @@ private:
* on the camera
* \return sdl rectangle to draw a dst image to draw on the screen
*/
- SDL_Rect get_dst_rect(const Sprite & sprite, const Vector2 & pos, const Vector2 & scale) const;
+ SDL_Rect get_dst_rect(const Sprite & sprite, const Vector2 & pos, const Vector2 & cam_pos, const double & img_scale , const Vector2 & scale) const;
private:
//! sdl Window
diff --git a/src/crepe/system/RenderSystem.cpp b/src/crepe/system/RenderSystem.cpp
index a16fbb5..676ded6 100644
--- a/src/crepe/system/RenderSystem.cpp
+++ b/src/crepe/system/RenderSystem.cpp
@@ -72,13 +72,13 @@ bool RenderSystem::render_particle(const Sprite & sprite, const double & scale)
for (const Particle & p : em.data.particles) {
if (!p.active) continue;
- this->context.draw_particle(sprite, p.position, p.angle, this->scale * scale);
+ this->context.draw_particle(sprite, p.position ,p.angle, this->curr_cam_ref->pos ,scale, this->scale);
}
}
return rendering_particles;
}
void RenderSystem::render_normal(const Sprite & sprite, const Transform & tm) {
- this->context.draw(sprite, tm, this->scale * tm.scale);
+ this->context.draw(sprite, tm , this->curr_cam_ref->pos,this->scale);
}
void RenderSystem::render() {