From b56bd9374cba08c2fa429a0eb8534488134c91d6 Mon Sep 17 00:00:00 2001
From: talha <sarcxd@gmail.com>
Date: Wed, 12 Feb 2025 01:10:34 +0500
Subject: Improved level design tooling, Added ui camera
---
source/main.cpp | 66 ++++++++++++++++++++++++++++++++++++++++++++++++---------
source/math.h | 14 ++++++------
source/todo.txt | 8 ++++---
3 files changed, 68 insertions(+), 20 deletions(-)
(limited to 'source')
diff --git a/source/main.cpp b/source/main.cpp
index e0b5009..ae6b5a4 100755
--- a/source/main.cpp
+++ b/source/main.cpp
@@ -179,12 +179,18 @@ struct GLRenderer {
u32 cq_sp;
u32 cq_vao;
// camera
- b8 cam_update;
Vec3 preset_up_dir;
+ Mat4 cam_proj;
+ // ui camera
+ b8 ui_cam_update;
+ Vec3 ui_cam_pos;
+ Vec3 ui_cam_look;
+ Mat4 ui_cam_view;
+ // game camera
+ b8 cam_update;
Vec3 cam_pos;
Vec3 cam_look;
Mat4 cam_view;
- Mat4 cam_proj;
// Batched cq
// batching buffer
u32 cq_batch_sp;
@@ -576,10 +582,13 @@ void gl_render_text(GLRenderer *renderer, char* text, Vec2 position, r32 size, V
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glUseProgram(renderer->ui_text.sp);
- glUniformMatrix4fv(glGetUniformLocation(renderer->ui_text.sp, "View"),
- 1, GL_FALSE, renderer->cam_view.buffer);
- glUniformMatrix4fv(glGetUniformLocation(renderer->ui_text.sp, "Projection"),
- 1, GL_FALSE, renderer->cam_proj.buffer);
+ if (renderer->ui_cam_update) {
+ glUniformMatrix4fv(glGetUniformLocation(renderer->ui_text.sp, "View"),
+ 1, GL_FALSE, renderer->ui_cam_view.buffer);
+ glUniformMatrix4fv(glGetUniformLocation(renderer->ui_text.sp, "Projection"),
+ 1, GL_FALSE, renderer->cam_proj.buffer);
+ renderer->ui_cam_update = 0;
+ }
glUniform3fv(glGetUniformLocation(renderer->ui_text.sp, "TextColor"), 1, color.data);
glBindVertexArray(renderer->ui_text.vao);
glBindTexture(GL_TEXTURE_2D_ARRAY, renderer->ui_text.texture_atlas_id);
@@ -852,6 +861,11 @@ int main(int argc, char* argv[])
0.0f, (r32)scr_height*render_scale,
0.1f, 15.0f
);
+ // fixed_screen_camera
+ renderer.ui_cam_update = 1;
+ renderer.ui_cam_pos = renderer.cam_pos;
+ renderer.ui_cam_look = renderer.cam_look;
+ renderer.ui_cam_view = renderer.cam_view;
// @section: gameplay variables
r32 motion_scale = 2.0f;
@@ -918,6 +932,7 @@ int main(int argc, char* argv[])
effective_force = 0.0f;
player_velocity = Vec2{0.0f, 0.0f};
gravity_diry = 1.0f;
+ renderer.cam_update = 1;
}
// gameplay camera movement stuff
@@ -988,6 +1003,10 @@ int main(int argc, char* argv[])
controller.jump = 0;
controller.toggle_gravity = 0;
+
+ IVec2 mouse_position;
+ IVec2 mouse_position_world;
+ IVec2 mouse_position_clamped;
SDL_Event ev;
while(SDL_PollEvent(&ev))
{
@@ -997,6 +1016,19 @@ int main(int argc, char* argv[])
{
game_running = 0;
} break;
+ case (SDL_MOUSEMOTION):
+ {
+ SDL_GetMouseState(&mouse_position.x, &mouse_position.y);
+ // flip mouse y to map it Y at Top -> Y at Bottom (like in maths)
+ mouse_position.y = scr_height*state.render_scale.y - mouse_position.y;
+ // get mouse world position
+ mouse_position_world.x = mouse_position.x + (s32)renderer.cam_pos.x;
+ mouse_position_world.y = mouse_position.y + (s32)renderer.cam_pos.y;
+ // clamp mouse position based off of the grids we draw (this will make level object placement easier)
+ mouse_position_clamped.x = mouse_position_world.x - (mouse_position_world.x % (s32)(atom_size.x));
+ mouse_position_clamped.y = mouse_position_world.y - (mouse_position_world.y % (s32)(atom_size.y));
+
+ } break;
case (SDL_KEYDOWN):
{
if (ev.key.keysym.sym == SDLK_w)
@@ -1506,8 +1538,8 @@ int main(int argc, char* argv[])
// @step: player is at the edge of the screen
// get players visible bounds (padding around the player to consider it be visible for the camera)
- Vec2 vis_lb = player.bounds.lb - (Vec2{40.0f, 60.0f} * state.render_scale);
- Vec2 vis_rt = player.bounds.rt + (Vec2{40.0f, 60.0f} * state.render_scale);
+ Vec2 vis_lb = player.bounds.lb - (Vec2{120.0f, 60.0f} * state.render_scale);
+ Vec2 vis_rt = player.bounds.rt + (Vec2{120.0f, 60.0f} * state.render_scale);
Rect vis_bounds;
vis_bounds.lb = vis_lb;
vis_bounds.rt = vis_rt;
@@ -1629,7 +1661,6 @@ int main(int argc, char* argv[])
// @section: rendering
// @step: render draw lines
-#if 1
{
// @step: draw vertical lines
s32 line_index = (s32)state.camera_bounds.lb.x/atom_size.x;
@@ -1682,7 +1713,6 @@ int main(int argc, char* argv[])
}
gl_line_flush(&renderer);
}
-#endif
// render_entities
for (int i = 0; i < state.game_level.entity_count; i++) {
@@ -1760,6 +1790,22 @@ int main(int argc, char* argv[])
// 28.0f*render_scale, // size
// Vec3{0.0f, 0.0f, 0.0f}); // color
+ sprintf(fmt_buffer, "GridX: %d, GridY: %d", mouse_position_clamped.x, mouse_position_clamped.y);
+ gl_render_text(
+ &renderer,
+ fmt_buffer,
+ Vec2{0.0f, 0.0f},
+ 28.0f*render_scale,
+ Vec3{0.0f, 0.0f, 0.0f});
+
+ sprintf(fmt_buffer, "WorldMouseX: %d, WorldMouseY: %d", mouse_position_world.x, mouse_position_world.y);
+ gl_render_text(
+ &renderer,
+ fmt_buffer,
+ Vec2{0.0f, 40.0f},
+ 28.0f*render_scale,
+ Vec3{0.0f, 0.0f, 0.0f});
+
SDL_GL_SwapWindow(window);
update_frame_timer(&timer);
diff --git a/source/math.h b/source/math.h
index b189c89..da7744b 100755
--- a/source/math.h
+++ b/source/math.h
@@ -51,12 +51,12 @@ u32 clampi(u32 x, u32 bottom, u32 top)
// ==== Vector Math ====
union IVec2 {
struct {
- u32 x;
- u32 y;
+ s32 x;
+ s32 y;
};
- u32 data[2];
+ s32 data[2];
- IVec2 operator+(u32 scaler) {
+ IVec2 operator+(s32 scaler) {
IVec2 res;
res.x = this->x + scaler;
res.y = this->y + scaler;
@@ -72,7 +72,7 @@ union IVec2 {
return res;
}
- IVec2 operator-(u32 scaler) {
+ IVec2 operator-(s32 scaler) {
IVec2 res;
res.x = this->x - scaler;
res.y = this->y - scaler;
@@ -88,7 +88,7 @@ union IVec2 {
return res;
}
- IVec2 operator*(u32 scaler) {
+ IVec2 operator*(s32 scaler) {
IVec2 res;
res.x = this->x * scaler;
res.y = this->y * scaler;
@@ -104,7 +104,7 @@ union IVec2 {
return res;
}
- IVec2 operator/(u32 scaler) {
+ IVec2 operator/(s32 scaler) {
SDL_assert(scaler != 0);
IVec2 res;
res.x = this->x / scaler;
diff --git a/source/todo.txt b/source/todo.txt
index 165d963..efc8285 100644
--- a/source/todo.txt
+++ b/source/todo.txt
@@ -28,17 +28,19 @@ DONE:
in the level file.
- Added invert gravity mechanic
- teleport block mechanic
-
-DOING:
- improve level design features
* add lines for easier distinction
* get world position via mouse
+- setup ui camera
+
+DOING:
+- Fix camera jerk on level load
BLOCKED:
- Audio: figure out what the correct audio sound for jumping will be.
TODO:
-- Fix camera jerk on level load
+- Refactor level loading functions
- Make camera pan a continuous function, discrete steps are too jerky.
- Update camera follower for centering player in view (with limits) after
a few seconds (maybe like 2 seconds)
--
cgit v1.2.3