Minimap

Overview

The minimap (128×128 pixels) is positioned in the left part of the HUD: - Position: POSMAPX=8, POSMAPY=15 - Dimensions: DIMMAPX=128, DIMMAPY=128 - Image channel: CHMAP (9)

Implementation: src/decmap.cpp

Map Generation

CDecor::GenerateMap() walks the entire world grid and assigns a colour to each cell:

BOOL CDecor::GenerateMap();
// Iterates m_decor[0..99][0..99]
// For each cell, calls MapInitColors() to get colour
// Draws a 2×1 pixel dot per cell (horizontal compression for isometric view)

CDecor::MapInitColors() initialises the colour palette based on: - Floor icon (grass, water, ice, snow, ...) - Object icon (trees, buildings, rocks, ...) - Internal colour table m_colors[100]

Viewport Rectangle

An outline rectangle showing the current visible viewport is drawn over the minimap. Clicking on the minimap scrolls the viewport:

BOOL CDecor::MapMove(POINT pos);
// pos = pixel position of click on the minimap
// Converts to grid coordinates and updates m_celCoin (scroll position)
// Returns TRUE if the click was within the minimap area

Coordinate Conversion

POINT CDecor::ConvCelToMap(POINT cel);
// Grid cell → minimap pixel

POINT CDecor::ConvMapToCel(POINT pos);
// Minimap pixel → grid cell

Colour Coding