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-rw-r--r--src/crepe/api/Sprite.h10
-rw-r--r--src/crepe/facade/SDLContext.cpp17
-rw-r--r--src/crepe/system/RenderSystem.cpp9
-rw-r--r--src/crepe/system/RenderSystem.h3
-rw-r--r--src/example/rendering_particle.cpp26
5 files changed, 35 insertions, 30 deletions
diff --git a/src/crepe/api/Sprite.h b/src/crepe/api/Sprite.h
index a2409c2..a3fc319 100644
--- a/src/crepe/api/Sprite.h
+++ b/src/crepe/api/Sprite.h
@@ -66,6 +66,16 @@ public:
//! independent sprite offset position
vec2 position_offset;
+
+ /**
+ * \brief gives the user the option to render this in world space or in camera space
+ *
+ * - if true will this be rendered in world space this means that the sprite can be
+ * rendered off the screen
+ * - if false --> will the sprite be rendered in camera space. this means that the
+ * coordinates given on the \c Sprite and \c Transform will be inside the camera
+ */
+ bool world_space = true;
};
public:
diff --git a/src/crepe/facade/SDLContext.cpp b/src/crepe/facade/SDLContext.cpp
index fffbe34..0d5eb01 100644
--- a/src/crepe/facade/SDLContext.cpp
+++ b/src/crepe/facade/SDLContext.cpp
@@ -11,7 +11,6 @@
#include <array>
#include <cmath>
#include <cstddef>
-#include <cstdint>
#include <functional>
#include <memory>
#include <stdexcept>
@@ -137,6 +136,8 @@ SDL_FRect SDLContext::get_dst_rect(const DestinationRectangleData & ctx) const {
= (ctx.sprite.aspect_ratio == 0) ? ctx.texture.get_ratio() : ctx.sprite.aspect_ratio;
vec2 size = data.size;
+ vec2 screen_pos = ctx.pos + data.position_offset;
+
if (data.size.x == 0 && data.size.y != 0) {
size.x = data.size.y * aspect_ratio;
}
@@ -145,10 +146,16 @@ SDL_FRect SDLContext::get_dst_rect(const DestinationRectangleData & ctx) const {
}
size *= cam_aux_data.render_scale * ctx.img_scale * data.scale_offset;
- vec2 screen_pos = (ctx.pos + data.position_offset - cam_aux_data.cam_pos
- + (cam_aux_data.zoomed_viewport) / 2)
- * cam_aux_data.render_scale
- - size / 2 + cam_aux_data.bar_size;
+ if (ctx.sprite.data.world_space) {
+ vec2 multiplier = cam_aux_data.cam_pos
+ + (cam_aux_data.zoomed_viewport / 2) * cam_aux_data.render_scale
+ - size / 2 + cam_aux_data.bar_size;
+ screen_pos += multiplier;
+ } else {
+ vec2 multiplier = (cam_aux_data.zoomed_viewport / 2) * cam_aux_data.render_scale
+ - size / 2 + cam_aux_data.bar_size;
+ screen_pos += multiplier;
+ }
return SDL_FRect{
.x = screen_pos.x,
diff --git a/src/crepe/system/RenderSystem.cpp b/src/crepe/system/RenderSystem.cpp
index 62d42ec..57d180f 100644
--- a/src/crepe/system/RenderSystem.cpp
+++ b/src/crepe/system/RenderSystem.cpp
@@ -73,7 +73,8 @@ void RenderSystem::update() {
this->present_screen();
}
-bool RenderSystem::render_particle(const Sprite & sprite, const double & scale) {
+bool RenderSystem::render_particle(const Sprite & sprite, const float & transform_angle,
+ const float & scale) {
ComponentManager & mgr = this->mediator.component_manager;
SDLContext & ctx = this->mediator.sdl_context;
@@ -92,12 +93,13 @@ bool RenderSystem::render_particle(const Sprite & sprite, const double & scale)
for (const Particle & p : em.particles) {
if (!p.active) continue;
+ if (p.time_in_life < em.data.begin_lifespan) continue;
ctx.draw(SDLContext::RenderContext{
.sprite = sprite,
.texture = res,
.pos = p.position,
- .angle = p.angle,
+ .angle = p.angle + transform_angle,
.scale = scale,
});
}
@@ -136,7 +138,8 @@ void RenderSystem::render() {
const Transform & transform
= mgr.get_components_by_id<Transform>(sprite.game_object_id).front().get();
- bool rendered_particles = this->render_particle(sprite, transform.scale);
+ bool rendered_particles
+ = this->render_particle(sprite, transform.rotation, transform.scale);
if (rendered_particles) continue;
diff --git a/src/crepe/system/RenderSystem.h b/src/crepe/system/RenderSystem.h
index 56a0553..76df0e0 100644
--- a/src/crepe/system/RenderSystem.h
+++ b/src/crepe/system/RenderSystem.h
@@ -49,7 +49,8 @@ private:
* constructor is now protected i cannot make tmp inside
* \return true if particles have been rendered
*/
- bool render_particle(const Sprite & sprite, const double & scale);
+ bool render_particle(const Sprite & sprite, const float & transform_angle,
+ const float & scale);
/**
* \brief Renders all Text components
*
diff --git a/src/example/rendering_particle.cpp b/src/example/rendering_particle.cpp
index add43f4..0fe24df 100644
--- a/src/example/rendering_particle.cpp
+++ b/src/example/rendering_particle.cpp
@@ -13,7 +13,6 @@
#include <crepe/manager/ComponentManager.h>
#include <crepe/manager/Mediator.h>
#include <crepe/types.h>
-#include <iostream>
using namespace crepe;
using namespace std;
@@ -21,11 +20,7 @@ using namespace std;
class TestScene : public Scene {
public:
void load_scene() {
-
- cout << "TestScene" << endl;
- Mediator & mediator = this->mediator;
- ComponentManager & mgr = mediator.component_manager;
- GameObject game_object = mgr.new_object("", "", vec2{0, 0}, 0, 1);
+ GameObject game_object = new_object("", "", vec2{0, 0}, 0, 1);
Color color(255, 255, 255, 255);
@@ -41,25 +36,14 @@ public:
.angle_offset = 0,
.position_offset = {0, 0},
});
+ auto & emitter
+ = game_object.add_component<ParticleEmitter>(test_sprite, ParticleEmitter::Data{});
- //auto & anim = game_object.add_component<Animator>(test_sprite,ivec2{32, 64}, uvec2{4,1}, Animator::Data{});
- //anim.set_anim(0);
-
- auto & cam = game_object.add_component<Camera>(ivec2{720, 1280}, vec2{400, 400},
+ auto & cam = game_object.add_component<Camera>(ivec2{1280, 720}, vec2{400, 400},
Camera::Data{
.bg_color = Color::WHITE,
});
-
- function<void()> on_click = [&]() { cout << "button clicked" << std::endl; };
- function<void()> on_enter = [&]() { cout << "enter" << std::endl; };
- function<void()> on_exit = [&]() { cout << "exit" << std::endl; };
-
- auto & button
- = game_object.add_component<Button>(vec2{200, 200}, vec2{0, 0}, on_click, false);
- button.on_mouse_enter = on_enter;
- button.on_mouse_exit = on_exit;
- button.is_toggle = true;
- button.active = true;
+ cam.data.postion_offset = {1000, 1000};
}
string get_name() const { return "TestScene"; };