mirror/glerminal
1
0
Fork 0
mirror of https://git.shylie.info/shylie/glerminal.git synced 2025-10-02 13:10:10 +00:00
Code Issues Projects Releases Wiki Activity

Fix a bug with glerminal_layer_scale that caused unintended behavior

Browse Source
This commit is contained in:
Shylie
2024-05-23 10:53:07 -04:00
parent c89563338a
commit 17ea6a7f0a
9 changed files with 164 additions and 55 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
examples/atlas.cpp
View File

@@ -24,11 +24,11 @@ namespace
time = 0;
}
for (int i = 0; i < 40; i++)
for (int i = 0; i < GRID_WIDTH; i++)
{
for (int j = 0; j < 25; j++)
for (int j = 0; j < GRID_HEIGHT; j++)
{
for (int k = 0; k < 256; k++)
for (int k = 0; k < LAYER_COUNT; k++)
{
glerminal_set(i, j, k, rand() % 4);
glerminal_offset(i, j, k, (rand() * rand()) % 64 - 32, (rand() * rand()) % 64 - 32);

30
examples/basic.cpp
View File

@@ -7,32 +7,28 @@ namespace
void init()
{
glerminal_load_sprites_file("resources/basic.png");
for (int i = 0; i < GRID_WIDTH; i++)
{
for (int j = 0; j < GRID_HEIGHT; j++)
{
glerminal_set(i, j, 0, 1);
}
}
}
void mainloop(float dt)
{
static float time = 1;
static float time = 0;
time += dt;
time = fmodf(time, 3.1415926f * 2);
if (time < 0.2f)
for (int i = 0; i < GRID_WIDTH; i++)
{
return;
}
else
{
time = 0;
}
for (int i = 0; i < 40; i++)
{
for (int j = 0; j < 25; j++)
for (int j = 0; j < GRID_HEIGHT; j++)
{
for (int k = 0; k < 256; k++)
{
glerminal_set(i, j, k, rand() % 3 == 0);
glerminal_offset(i, j, k, (rand() * rand()) % 64 - 32, (rand() * rand()) % 64 - 32);
}
glerminal_offset(i, j, 0, cosf(time - i / 3.1415f), sinf(time - j / 3.1415f));
}
}

3
examples/resources/rogue.png Normal file
View File

@@ -0,0 +1,3 @@
version https://git-lfs.github.com/spec/v1
oid sha256:8a4d4e778300d34287688779faefbff8114bf20fd3519368fe250b6f8d2c1313
size 173

87
examples/rogue.cpp Normal file
View File

@@ -0,0 +1,87 @@
#include <glerminal.h>
#include <cmath>
namespace
{
enum : unsigned char
{
empty,
player,
floor,
wall
};
constexpr unsigned int WALL_LAYERS = LAYER_COUNT - 1;
void init()
{
glerminal_load_sprites_file("resources/rogue.png");
for (int i = 0; i < WALL_LAYERS; i++)
{
const unsigned char v = (i + 1) * (256 / WALL_LAYERS) - 1;
const unsigned int j = (0xFF << 24) | (v << 16) | (v << 8) | v;
glerminal_layer_color(i, j);
glerminal_layer_scale(i, (i / static_cast<float>(WALL_LAYERS)) + 1);
}
for (int i = 0; i < GRID_WIDTH; i++)
{
for (int j = 0; j < GRID_HEIGHT; j++)
{
for (int k = 0; k < WALL_LAYERS; k++)
{
if (i == 0 || j == 0 || i == GRID_WIDTH - 1 || j == GRID_HEIGHT - 1)
{
glerminal_set(i, j, k, floor);
}
else
{
glerminal_set(i, j, k, wall);
}
}
}
}
}
void mainloop(float dt)
{
static float time = 0;
time += dt;
const float cx = GRID_WIDTH / 2.0f * cosf(time / 2) + GRID_WIDTH / 2.0f;
const float cy = GRID_HEIGHT / 2.0f * sinf(time / 2) + GRID_HEIGHT / 2.0f;
for (int i = 0; i < GRID_WIDTH; i++)
{
for (int j = 0; j < GRID_HEIGHT; j++)
{
for (int k = 0; k < WALL_LAYERS; k++)
{
const float dx = (i - cx);
const float dy = (j - cy);
const float dist = sqrtf(dx * dx + dy * dy);
const float angle = atan2f(dy, dx);
const float ox = dist * k / WALL_LAYERS * cosf(angle);
const float oy = dist * k / WALL_LAYERS * sinf(angle);
glerminal_offset(i, j, k, ox * 2, oy * 2);
}
glerminal_set(i, j, WALL_LAYERS, empty);
}
}
glerminal_set(cx, cy, WALL_LAYERS, player);
glerminal_flush();
}
}
int main(int argc, char** argv)
{
glerminal_run(init, mainloop);
}

34
examples/towers.cpp
View File

@@ -9,20 +9,20 @@ namespace
{
glerminal_load_sprites_file("resources/towers.png");
for (int i = 0; i < 256; i++)
for (int i = 0; i < LAYER_COUNT; i++)
{
constexpr unsigned char c = 0;
const unsigned char v = (255 - c) * powf((i - 1) / 256.0f, 2.0f) + c;
const unsigned int j = (0x7F << 24) | (v << 16) | (v << 8) | v;
constexpr unsigned char c = 16;
const unsigned char v = (255 - c) * powf((256 / LAYER_COUNT * i - 1) / 256.0f, 2.0f) + c;
const unsigned int j = (0xFF << 24) | (v << 16) | (v << 8) | v;
glerminal_layer_color(i, j);
glerminal_layer_scale(i, i / 256.0f + 1);
glerminal_layer_scale(i, i / static_cast<float>(LAYER_COUNT) + 1);
}
for (int i = 0; i < 40; i++)
for (int i = 0; i < GRID_WIDTH; i++)
{
for (int j = 0; j < 25; j++)
for (int j = 0; j < GRID_HEIGHT; j++)
{
const int c = rand() % 224 + 32;
const int c = rand() % (LAYER_COUNT * 3 / 4) + LAYER_COUNT / 4;
for (int k = 0; k < c; k++)
{
glerminal_set(i, j, k, 1);
@@ -37,18 +37,20 @@ namespace
time += dt;
const float cx = 20.0f * cosf(time / 3.1415f) + 20.0f;
const float cy = 12.5f * sinf(time / 3.1415f) + 12.5f;
const float cx = (GRID_WIDTH / 2.0f) * cosf(time / 3.1415f) + (GRID_WIDTH / 2.0f);
const float cy = (GRID_HEIGHT / 2.0f) * sinf(time / 3.1415f) + (GRID_HEIGHT / 2.0f);
for (int i = 0; i < 40; i++)
for (int i = 0; i < GRID_WIDTH; i++)
{
for (int j = 0; j < 25; j++)
for (int j = 0; j < GRID_WIDTH; j++)
{
for (int k = 0; k < 256; k++)
for (int k = 0; k < LAYER_COUNT; k++)
{
const float ox = 0.01f * k * (i - cx);
const float oy = 0.01f * k * (j - cy);
glerminal_offset(i, j, k, ox + (1 + 0.004f * k) * cosf(i + k * 6.2832f / 128.0f + 3.1415f * time), oy + (1 + 0.004f * k) * sinf(j + k * 6.2832f / 128.0f + 3.1415f * time));
const float ox = (256.0f / LAYER_COUNT) * 0.0025f * k * (i - cx);
const float oy = (256.0f / LAYER_COUNT) * 0.0025f * k * (j - cy);
const float sx = (1 + (256.0f / LAYER_COUNT) * 0.002f * k) * cosf(i + k * 6.2832f / 128.0f + 3.1415f * time / 1.5f);
const float sy = (1 + (256.0f / LAYER_COUNT) * 0.002f * k) * sinf(j + k * 6.2832f / 128.0f + 3.1415f * time / 1.5f);
glerminal_offset(i, j, k, ox + sx, oy + sy);
}
}
}